[0.6.164] Apply tizen coding rule
[platform/core/multimedia/libmm-player.git] / src / mm_player_gst.c
index 2de93e6..9948122 100644 (file)
 ========================================================================================== */
 #include <dlog.h>
 #include <mm_error.h>
-#include <mm_attrs_private.h>
+#include <gst/app/gstappsrc.h>
 
 #include "mm_player_gst.h"
 #include "mm_player_priv.h"
 #include "mm_player_attrs.h"
 #include "mm_player_utils.h"
+#include "mm_player_tracks.h"
 
 /*===========================================================================================
 |                                                                                                                                                                                      |
 |                                                                                                                                                                                      |
 ========================================================================================== */
 
+static gboolean
+__mmplayer_check_error_posted_from_activated_track(mm_player_t *player, gchar *src_element_name)
+{
+       /* check whether the error is posted from not-activated track or not */
+       int msg_src_pos = 0;
+       gint active_pad_index = 0;
+
+       MMPLAYER_RETURN_VAL_IF_FAIL(player->pipeline->mainbin[MMPLAYER_M_A_INPUT_SELECTOR].gst, TRUE);
+
+       active_pad_index = player->selector[MM_PLAYER_TRACK_TYPE_AUDIO].active_pad_index;
+       LOGD("current  active pad index  -%d", active_pad_index);
+
+       if  (src_element_name) {
+               int idx = 0;
+
+               if (player->audio_decoders) {
+                       GList *adec = player->audio_decoders;
+                       for (; adec ; adec = g_list_next(adec)) {
+                               gchar *name = adec->data;
+
+                               LOGD("found audio decoder name  = %s", name);
+                               if (g_strrstr(name, src_element_name)) {
+                                       msg_src_pos = idx;
+                                       break;
+                               }
+                               idx++;
+                       }
+               }
+               LOGD("active pad = %d, error src index = %d", active_pad_index,  msg_src_pos);
+       }
+
+       if (active_pad_index != msg_src_pos) {
+               LOGD("skip error because error is posted from no activated track");
+               return FALSE;
+       }
+
+       return TRUE;
+}
+
+static int
+__mmplayer_gst_transform_error_decode(mm_player_t *player, const char *klass)
+{
+       /* Demuxer can't parse one track because it's corrupted.
+        * So, the decoder for it is not linked.
+        * But, it has one playable track.
+        */
+       if (g_strrstr(klass, "Demux")) {
+               if (player->can_support_codec == FOUND_PLUGIN_VIDEO) {
+                       return MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
+               } else if (player->can_support_codec == FOUND_PLUGIN_AUDIO) {
+                       return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
+               } else {
+                       if (player->pipeline->audiobin) { // PCM
+                               return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
+                       } else {
+                               LOGD("not found any available codec. Player should be destroyed.");
+                               return MM_ERROR_PLAYER_CODEC_NOT_FOUND;
+                       }
+               }
+       }
+
+       return MM_ERROR_PLAYER_INVALID_STREAM;
+}
+
+static int
+__mmplayer_gst_transform_error_type(mm_player_t *player, GstElement *src_element)
+{
+       if (src_element == player->pipeline->mainbin[MMPLAYER_M_SUBPARSE].gst) {
+               LOGE("Not supported subtitle.");
+               return MM_ERROR_PLAYER_NOT_SUPPORTED_SUBTITLE;
+       }
+       return MM_ERROR_PLAYER_NOT_SUPPORTED_FORMAT;
+}
+
+static int
+__mmplayer_gst_transform_error_failed(mm_player_t *player, const char *klass, GError *error)
+{
+       /* Decoder Custom Message */
+       if (!strstr(error->message, "ongoing"))
+               return MM_ERROR_PLAYER_NOT_SUPPORTED_FORMAT;
+
+       if (strncasecmp(klass, "audio", 5)) {
+               if ((player->can_support_codec & FOUND_PLUGIN_VIDEO)) {
+                       LOGD("Video can keep playing.");
+                       return MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
+               }
+       } else if (strncasecmp(klass, "video", 5)) {
+               if ((player->can_support_codec & FOUND_PLUGIN_AUDIO)) {
+                       LOGD("Audio can keep playing.");
+                       return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
+               }
+       }
+
+       LOGD("not found any available codec. Player should be destroyed.");
+       return MM_ERROR_PLAYER_CODEC_NOT_FOUND;
+}
+
+static int
+__mmplayer_gst_transform_error_decrypt(mm_player_t *player, GError *error)
+{
+       if (strstr(error->message, "rights expired"))
+               return MM_ERROR_PLAYER_DRM_EXPIRED;
+       else if (strstr(error->message, "no rights"))
+               return MM_ERROR_PLAYER_DRM_NO_LICENSE;
+       else if (strstr(error->message, "has future rights"))
+               return MM_ERROR_PLAYER_DRM_FUTURE_USE;
+       else if (strstr(error->message, "opl violation"))
+               return MM_ERROR_PLAYER_DRM_OUTPUT_PROTECTION;
+
+       return MM_ERROR_PLAYER_DRM_NOT_AUTHORIZED;
+}
+
 /* NOTE : decide gstreamer state whether there is some playable track or not. */
 static gint
-__mmplayer_gst_transform_gsterror(mm_player_t* player, GstMessage * message, GError* error)
+__mmplayer_gst_transform_gsterror(mm_player_t *player, GstMessage *message, GError *error)
 {
        gchar *src_element_name = NULL;
        GstElement *src_element = NULL;
        GstElementFactory *factory = NULL;
-       const gcharklass = NULL;
+       const gchar *klass = NULL;
 
        MMPLAYER_FENTER();
 
@@ -102,128 +215,39 @@ __mmplayer_gst_transform_gsterror(mm_player_t* player, GstMessage * message, GEr
 
        src_element = GST_ELEMENT_CAST(message->src);
        if (!src_element)
-               goto INTERNAL_ERROR;
+               return MM_ERROR_PLAYER_INTERNAL;
 
        src_element_name = GST_ELEMENT_NAME(src_element);
        if (!src_element_name)
-               goto INTERNAL_ERROR;
+               return MM_ERROR_PLAYER_INTERNAL;
 
        factory = gst_element_get_factory(src_element);
        if (!factory)
-               goto INTERNAL_ERROR;
+               return MM_ERROR_PLAYER_INTERNAL;
 
        klass = gst_element_factory_get_metadata(factory, GST_ELEMENT_METADATA_KLASS);
        if (!klass)
-               goto INTERNAL_ERROR;
+               return MM_ERROR_PLAYER_INTERNAL;
 
-       LOGD("error code=%d, msg=%s, src element=%s, class=%s\n",
+       LOGD("error code=%d, msg=%s, src element=%s, class=%s",
                        error->code, error->message, src_element_name, klass);
 
-       /* check whether the error is posted from not-activated track or not */
-       if (player->pipeline->mainbin[MMPLAYER_M_A_INPUT_SELECTOR].gst) {
-               int msg_src_pos = 0;
-               gint active_pad_index = player->selector[MM_PLAYER_TRACK_TYPE_AUDIO].active_pad_index;
-               LOGD("current  active pad index  -%d", active_pad_index);
-
-               if  (src_element_name) {
-                       int idx = 0;
-
-                       if (player->audio_decoders) {
-                               GList *adec = player->audio_decoders;
-                               for (; adec ; adec = g_list_next(adec)) {
-                                       gchar *name = adec->data;
-
-                                       LOGD("found audio decoder name  = %s", name);
-                                       if (g_strrstr(name, src_element_name)) {
-                                               msg_src_pos = idx;
-                                               break;
-                                       }
-                                       idx++;
-                               }
-                       }
-                       LOGD("active pad = %d, error src index = %d", active_pad_index,  msg_src_pos);
-               }
-
-               if (active_pad_index != msg_src_pos) {
-                       LOGD("skip error because error is posted from no activated track");
-                       return MM_ERROR_NONE;
-               }
-       }
+       if (!__mmplayer_check_error_posted_from_activated_track(player, src_element_name))
+               return MM_ERROR_NONE;
 
        switch (error->code) {
        case GST_STREAM_ERROR_DECODE:
-       {
-               /* Demuxer can't parse one track because it's corrupted.
-                * So, the decoder for it is not linked.
-                * But, it has one playable track.
-                */
-               if (g_strrstr(klass, "Demux")) {
-                       if (player->can_support_codec == FOUND_PLUGIN_VIDEO) {
-                               return MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
-                       } else if (player->can_support_codec == FOUND_PLUGIN_AUDIO) {
-                               return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
-                       } else {
-                               if (player->pipeline->audiobin) // PCM
-                                       return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
-                               else
-                                       goto CODEC_NOT_FOUND;
-                       }
-               }
-               return MM_ERROR_PLAYER_INVALID_STREAM;
-       }
-               break;
-
+               return __mmplayer_gst_transform_error_decode(player, klass);
        case GST_STREAM_ERROR_CODEC_NOT_FOUND:
        case GST_STREAM_ERROR_TYPE_NOT_FOUND:
        case GST_STREAM_ERROR_WRONG_TYPE:
-       {
-               if (src_element == player->pipeline->mainbin[MMPLAYER_M_SUBPARSE].gst) {
-                       LOGE("Not supported subtitle.");
-                       return MM_ERROR_PLAYER_NOT_SUPPORTED_SUBTITLE;
-               }
-               return MM_ERROR_PLAYER_NOT_SUPPORTED_FORMAT;
-       }
-
+               return __mmplayer_gst_transform_error_type(player, src_element);
        case GST_STREAM_ERROR_FAILED:
-       {
-               /* Decoder Custom Message */
-               if (strstr(error->message, "ongoing")) {
-                       if (strncasecmp(klass, "audio", 5)) {
-                               if ((player->can_support_codec & FOUND_PLUGIN_VIDEO)) {
-                                       LOGD("Video can keep playing.\n");
-                                       return MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
-                               } else
-                                       goto CODEC_NOT_FOUND;
-
-                       } else if (strncasecmp(klass, "video", 5)) {
-                               if ((player->can_support_codec & FOUND_PLUGIN_AUDIO)) {
-                                       LOGD("Audio can keep playing.\n");
-                                       return MM_ERROR_PLAYER_VIDEO_CODEC_NOT_FOUND;
-                               } else
-                                       goto CODEC_NOT_FOUND;
-                       }
-               }
-               return MM_ERROR_PLAYER_NOT_SUPPORTED_FORMAT;
-       }
-               break;
-
+               return __mmplayer_gst_transform_error_failed(player, klass, error);
        case GST_STREAM_ERROR_DECRYPT:
        case GST_STREAM_ERROR_DECRYPT_NOKEY:
-       {
-               LOGE("decryption error, [%s] failed, reason : [%s]\n", src_element_name, error->message);
-
-               if (strstr(error->message, "rights expired"))
-                       return MM_ERROR_PLAYER_DRM_EXPIRED;
-               else if (strstr(error->message, "no rights"))
-                       return MM_ERROR_PLAYER_DRM_NO_LICENSE;
-               else if (strstr(error->message, "has future rights"))
-                       return MM_ERROR_PLAYER_DRM_FUTURE_USE;
-               else if (strstr(error->message, "opl violation"))
-                       return MM_ERROR_PLAYER_DRM_OUTPUT_PROTECTION;
-               return MM_ERROR_PLAYER_DRM_NOT_AUTHORIZED;
-       }
-               break;
-
+               LOGE("decryption error, [%s] failed, reason : [%s]", src_element_name, error->message);
+               return __mmplayer_gst_transform_error_decrypt(player, error);
        default:
                break;
        }
@@ -231,17 +255,10 @@ __mmplayer_gst_transform_gsterror(mm_player_t* player, GstMessage * message, GEr
        MMPLAYER_FLEAVE();
 
        return MM_ERROR_PLAYER_INVALID_STREAM;
-
-INTERNAL_ERROR:
-       return MM_ERROR_PLAYER_INTERNAL;
-
-CODEC_NOT_FOUND:
-       LOGD("not found any available codec. Player should be destroyed.\n");
-       return MM_ERROR_PLAYER_CODEC_NOT_FOUND;
 }
 
 gint
-__mmplayer_gst_handle_core_error(mm_player_tplayer, int code)
+__mmplayer_gst_handle_core_error(mm_player_t *player, int code)
 {
        gint trans_err = MM_ERROR_NONE;
 
@@ -276,7 +293,7 @@ __mmplayer_gst_handle_core_error(mm_player_t* player, int code)
 }
 
 gint
-__mmplayer_gst_handle_library_error(mm_player_tplayer, int code)
+__mmplayer_gst_handle_library_error(mm_player_t *player, int code)
 {
        gint trans_err = MM_ERROR_NONE;
 
@@ -302,7 +319,7 @@ __mmplayer_gst_handle_library_error(mm_player_t* player, int code)
 }
 
 gint
-__mmplayer_gst_handle_resource_error(mm_player_t* player, int code, GstMessage * message)
+__mmplayer_gst_handle_resource_error(mm_player_t *player, int code, GstMessage *message)
 {
        gint trans_err = MM_ERROR_NONE;
 
@@ -363,7 +380,7 @@ __mmplayer_gst_handle_resource_error(mm_player_t* player, int code, GstMessage *
 }
 
 gint
-__mmplayer_gst_handle_stream_error(mm_player_t* player, GError* error, GstMessage * message)
+__mmplayer_gst_handle_stream_error(mm_player_t *player, GError *error, GstMessage *message)
 {
        gint trans_err = MM_ERROR_NONE;
 
@@ -401,7 +418,7 @@ __mmplayer_gst_handle_stream_error(mm_player_t* player, GError* error, GstMessag
 }
 
 gboolean
-__mmplayer_handle_gst_error(mm_player_t* player, GstMessage * message, GError* error)
+__mmplayer_handle_gst_error(mm_player_t *player, GstMessage *message, GError *error)
 {
        MMMessageParamType msg_param;
        gchar *msg_src_element;
@@ -424,7 +441,7 @@ __mmplayer_handle_gst_error(mm_player_t* player, GstMessage * message, GError* e
        } else if (error->domain == GST_STREAM_ERROR) {
                msg_param.code = __mmplayer_gst_handle_stream_error(player, error, message);
        } else {
-               LOGW("This error domain is not defined.\n");
+               LOGW("This error domain is not defined.");
 
                /* we treat system error as an internal error */
                msg_param.code = MM_ERROR_PLAYER_INVALID_STREAM;
@@ -433,9 +450,9 @@ __mmplayer_handle_gst_error(mm_player_t* player, GstMessage * message, GError* e
        if (message->src) {
                msg_src_element = GST_ELEMENT_NAME(GST_ELEMENT_CAST(message->src));
 
-               msg_param.data = (void *) error->message;
+               msg_param.data = (void *)error->message;
 
-               LOGE("-Msg src : [%s]   Domain : [%s]   Error : [%s]  Code : [%d] is tranlated to error code : [0x%x]\n",
+               LOGE("-Msg src : [%s]   Domain : [%s]   Error : [%s]  Code : [%d] is tranlated to error code : [0x%x]",
                        msg_src_element, g_quark_to_string(error->domain), error->message, error->code, msg_param.code);
        }
 
@@ -461,8 +478,9 @@ __mmplayer_handle_gst_error(mm_player_t* player, GstMessage * message, GError* e
                MMPLAYER_POST_MSG(player, MM_MESSAGE_ERROR, &msg_param);
                /* don't post more if one was sent already */
                player->msg_posted = TRUE;
-       } else
-               LOGD("skip error post because it's sent already.\n");
+       } else {
+               LOGD("skip error post because it's sent already.");
+       }
 
        MMPLAYER_FLEAVE();
 
@@ -470,7 +488,7 @@ __mmplayer_handle_gst_error(mm_player_t* player, GstMessage * message, GError* e
 }
 
 static gboolean
-__mmplayer_handle_streaming_error(mm_player_t* player, GstMessage * message)
+__mmplayer_handle_streaming_error(mm_player_t *player, GstMessage *message)
 {
        LOGD("\n");
        MMMessageParamType msg_param;
@@ -635,13 +653,13 @@ __mmplayer_handle_streaming_error(mm_player_t* player, GstMessage * message)
 
        error_string = g_strdup(gst_structure_get_string(s, "error_string"));
        if (error_string)
-               msg_param.data = (void *) error_string;
+               msg_param.data = (void *)error_string;
 
        if (message->src) {
                msg_src_element = GST_ELEMENT_NAME(GST_ELEMENT_CAST(message->src));
 
-               LOGE("-Msg src : [%s] Code : [%x] Error : [%s]  \n",
-                       msg_src_element, msg_param.code, (char*)msg_param.data);
+               LOGE("-Msg src : [%s] Code : [%x] Error : [%s]",
+                       msg_src_element, msg_param.code, (char *)msg_param.data);
        }
 
        /* post error to application */
@@ -650,13 +668,14 @@ __mmplayer_handle_streaming_error(mm_player_t* player, GstMessage * message)
 
                /* don't post more if one was sent already */
                player->msg_posted = TRUE;
-       } else
-               LOGD("skip error post because it's sent already.\n");
+       } else {
+               LOGD("skip error post because it's sent already.");
+       }
 
        gst_structure_free(s);
-       MMPLAYER_FLEAVE();
-       g_free(error_string);
+       MMPLAYER_FREEIF(error_string);
 
+       MMPLAYER_FLEAVE();
        return TRUE;
 
 }
@@ -694,138 +713,144 @@ __mmplayer_get_metadata_360_from_tags(GstTagList *tags, mm_player_spherical_meta
 }
 
 static gboolean
-__mmplayer_gst_extract_tag_from_msg(mm_player_t* player, GstMessage* msg)
+__mmplayer_gst_extract_tag_from_msg(mm_player_t *player, GstMessage *msg)
 {
 
 /* macro for better code readability */
 #define MMPLAYER_UPDATE_TAG_STRING(gsttag, attribute, playertag) \
-if (gst_tag_list_get_string(tag_list, gsttag, &string)) {\
-       if (string != NULL) { \
-               SECURE_LOGD("update tag string : %s\n", string); \
-               if (strlen(string) > MM_MAX_STRING_LENGTH) { \
-                       char *new_string = malloc(MM_MAX_STRING_LENGTH); \
-                       strncpy(new_string, string, MM_MAX_STRING_LENGTH-1); \
-                       new_string[MM_MAX_STRING_LENGTH-1] = '\0'; \
-                       mm_attrs_set_string_by_name(attribute, playertag, new_string); \
-                       g_free(new_string); \
-                       new_string = NULL; \
-               } else { \
-                       mm_attrs_set_string_by_name(attribute, playertag, string); \
+       do { \
+               if (gst_tag_list_get_string(tag_list, gsttag, &string)) {\
+                       if (string != NULL) { \
+                               SECURE_LOGD("update tag string : %s", string); \
+                               if (strlen(string) > MM_MAX_STRING_LENGTH) { \
+                                       char *new_string = g_malloc(MM_MAX_STRING_LENGTH); \
+                                       strncpy(new_string, string, MM_MAX_STRING_LENGTH - 1); \
+                                       new_string[MM_MAX_STRING_LENGTH - 1] = '\0'; \
+                                       mm_attrs_set_string_by_name(attribute, playertag, new_string); \
+                                       MMPLAYER_FREEIF(new_string); \
+                               } else { \
+                                       mm_attrs_set_string_by_name(attribute, playertag, string); \
+                               } \
+                               MMPLAYER_FREEIF(string); \
+                       } \
                } \
-               g_free(string); \
-               string = NULL; \
-       } \
-}
+       } while (0)
 
 #define MMPLAYER_UPDATE_TAG_IMAGE(gsttag, attribute, playertag) \
-do {   \
-       GstSample *sample = NULL;\
-       if (gst_tag_list_get_sample_index(tag_list, gsttag, index, &sample)) {\
-               GstMapInfo info = GST_MAP_INFO_INIT;\
-               buffer = gst_sample_get_buffer(sample);\
-               if (!gst_buffer_map(buffer, &info, GST_MAP_READ)) {\
-                       LOGD("failed to get image data from tag");\
-                       gst_sample_unref(sample);\
-                       return FALSE;\
-               } \
-               SECURE_LOGD("update album cover data : %p, size : %d\n", info.data, info.size);\
-               MMPLAYER_FREEIF(player->album_art);\
-               player->album_art = (gchar *)g_malloc(info.size);\
-               if (player->album_art) {\
-                       memcpy(player->album_art, info.data, info.size);\
-                       mm_attrs_set_data_by_name(attribute, playertag, (void *)player->album_art, info.size);\
-                       if (MMPLAYER_IS_HTTP_LIVE_STREAMING(player)) {\
-                               msg_param.data = (void *)player->album_art;\
-                               msg_param.size = info.size;\
-                               MMPLAYER_POST_MSG(player, MM_MESSAGE_IMAGE_BUFFER, &msg_param);\
-                               SECURE_LOGD("post message image buffer data : %p, size : %d\n", info.data, info.size);\
+       do {    \
+               GstSample *sample = NULL;\
+               if (gst_tag_list_get_sample_index(tag_list, gsttag, index, &sample)) {\
+                       GstMapInfo info = GST_MAP_INFO_INIT;\
+                       buffer = gst_sample_get_buffer(sample);\
+                       if (!gst_buffer_map(buffer, &info, GST_MAP_READ)) {\
+                               LOGD("failed to get image data from tag");\
+                               gst_sample_unref(sample);\
+                               return FALSE;\
                        } \
-               } \
-               gst_buffer_unmap(buffer, &info);\
-               gst_sample_unref(sample);\
-       }       \
-} while (0)
+                       SECURE_LOGD("update album cover data : %p, size : %zu", info.data, info.size);\
+                       MMPLAYER_FREEIF(player->album_art);\
+                       player->album_art = (gchar *)g_malloc(info.size);\
+                       if (player->album_art) {\
+                               memcpy(player->album_art, info.data, info.size);\
+                               mm_attrs_set_data_by_name(attribute, playertag, (void *)player->album_art, info.size);\
+                               if (MMPLAYER_IS_HTTP_LIVE_STREAMING(player)) {\
+                                       msg_param.data = (void *)player->album_art;\
+                                       msg_param.size = info.size;\
+                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_IMAGE_BUFFER, &msg_param);\
+                                       SECURE_LOGD("post message image buffer data : %p, size : %zu", info.data, info.size);\
+                               } \
+                       } \
+                       gst_buffer_unmap(buffer, &info);\
+                       gst_sample_unref(sample);\
+               }       \
+       } while (0)
 
 #define MMPLAYER_UPDATE_TAG_UINT(gsttag, attribute, playertag) \
-do {   \
-       if (gst_tag_list_get_uint(tag_list, gsttag, &v_uint)) { \
-               if (v_uint) { \
-                       int i = 0; \
-                       gchar *tag_list_str = NULL; \
-                       MMPlayerTrackType track_type = MM_PLAYER_TRACK_TYPE_AUDIO; \
-                       if (strstr(GST_OBJECT_NAME(msg->src), "audio")) \
-                               track_type = MM_PLAYER_TRACK_TYPE_AUDIO; \
-                       else if (strstr(GST_OBJECT_NAME(msg->src), "video")) \
-                               track_type = MM_PLAYER_TRACK_TYPE_VIDEO; \
-                       else \
-                               track_type = MM_PLAYER_TRACK_TYPE_TEXT; \
-                       if (!strncmp(gsttag, GST_TAG_BITRATE, strlen(GST_TAG_BITRATE))) { \
-                               if (track_type == MM_PLAYER_TRACK_TYPE_AUDIO) \
-                                       mm_attrs_set_int_by_name(attribute, "content_audio_bitrate", v_uint); \
-                               player->bitrate[track_type] = v_uint; \
-                               player->total_bitrate = 0; \
-                               for (i = 0; i < MM_PLAYER_STREAM_COUNT_MAX; i++) \
-                                       player->total_bitrate += player->bitrate[i]; \
-                               mm_attrs_set_int_by_name(attribute, playertag, player->total_bitrate); \
-                               SECURE_LOGD("update bitrate %d[bps] of stream #%d.\n", v_uint, (int)track_type); \
-                       } else if (!strncmp(gsttag, GST_TAG_MAXIMUM_BITRATE, strlen(GST_TAG_MAXIMUM_BITRATE))) { \
-                               player->maximum_bitrate[track_type] = v_uint; \
-                               player->total_maximum_bitrate = 0; \
-                               for (i = 0; i < MM_PLAYER_STREAM_COUNT_MAX; i++) \
-                                       player->total_maximum_bitrate += player->maximum_bitrate[i]; \
-                               mm_attrs_set_int_by_name(attribute, playertag, player->total_maximum_bitrate);\
-                               SECURE_LOGD("update maximum bitrate %d[bps] of stream #%d\n", v_uint, (int)track_type);\
-                       } else { \
-                               mm_attrs_set_int_by_name(attribute, playertag, v_uint); \
+       do {    \
+               if (gst_tag_list_get_uint(tag_list, gsttag, &v_uint)) { \
+                       if (v_uint) { \
+                               int i = 0; \
+                               MMPlayerTrackType track_type = MM_PLAYER_TRACK_TYPE_AUDIO; \
+                               if (strstr(GST_OBJECT_NAME(msg->src), "audio")) \
+                                       track_type = MM_PLAYER_TRACK_TYPE_AUDIO; \
+                               else if (strstr(GST_OBJECT_NAME(msg->src), "video")) \
+                                       track_type = MM_PLAYER_TRACK_TYPE_VIDEO; \
+                               else \
+                                       track_type = MM_PLAYER_TRACK_TYPE_TEXT; \
+                               if (!strncmp(gsttag, GST_TAG_BITRATE, strlen(GST_TAG_BITRATE))) { \
+                                       if (track_type == MM_PLAYER_TRACK_TYPE_AUDIO) \
+                                               mm_attrs_set_int_by_name(attribute, "content_audio_bitrate", v_uint); \
+                                       player->bitrate[track_type] = v_uint; \
+                                       player->total_bitrate = 0; \
+                                       for (i = 0; i < MM_PLAYER_STREAM_COUNT_MAX; i++) \
+                                               player->total_bitrate += player->bitrate[i]; \
+                                       mm_attrs_set_int_by_name(attribute, playertag, player->total_bitrate); \
+                                       SECURE_LOGD("update bitrate %d[bps] of stream #%d.", v_uint, (int)track_type); \
+                               } else if (!strncmp(gsttag, GST_TAG_MAXIMUM_BITRATE, strlen(GST_TAG_MAXIMUM_BITRATE))) { \
+                                       player->maximum_bitrate[track_type] = v_uint; \
+                                       player->total_maximum_bitrate = 0; \
+                                       for (i = 0; i < MM_PLAYER_STREAM_COUNT_MAX; i++) \
+                                               player->total_maximum_bitrate += player->maximum_bitrate[i]; \
+                                       mm_attrs_set_int_by_name(attribute, playertag, player->total_maximum_bitrate);\
+                                       SECURE_LOGD("update maximum bitrate %d[bps] of stream #%d", v_uint, (int)track_type);\
+                               } else { \
+                                       mm_attrs_set_int_by_name(attribute, playertag, v_uint); \
+                               } \
+                               v_uint = 0;\
                        } \
-                       v_uint = 0;\
-                       g_free(tag_list_str); \
                } \
-       } \
-} while (0)
+       } while (0)
 
 #define MMPLAYER_UPDATE_TAG_DATE(gsttag, attribute, playertag) \
-if (gst_tag_list_get_date(tag_list, gsttag, &date)) {\
-       if (date != NULL) {\
-               string = g_strdup_printf("%d", g_date_get_year(date));\
-               mm_attrs_set_string_by_name(attribute, playertag, string);\
-               SECURE_LOGD("metainfo year : %s\n", string);\
-               MMPLAYER_FREEIF(string);\
-               g_date_free(date);\
-       } \
-}
+       do { \
+               if (gst_tag_list_get_date(tag_list, gsttag, &date)) {\
+                       if (date != NULL) {\
+                               string = g_strdup_printf("%d", g_date_get_year(date));\
+                               mm_attrs_set_string_by_name(attribute, playertag, string);\
+                               SECURE_LOGD("metainfo year : %s", string);\
+                               MMPLAYER_FREEIF(string);\
+                               g_date_free(date);\
+                       } \
+               } \
+       } while (0)
 
 #define MMPLAYER_UPDATE_TAG_DATE_TIME(gsttag, attribute, playertag) \
-if (gst_tag_list_get_date_time(tag_list, gsttag, &datetime)) {\
-       if (datetime != NULL) {\
-               string = g_strdup_printf("%d", gst_date_time_get_year(datetime));\
-               mm_attrs_set_string_by_name(attribute, playertag, string);\
-               SECURE_LOGD("metainfo year : %s\n", string);\
-               MMPLAYER_FREEIF(string);\
-               gst_date_time_unref(datetime);\
-       } \
-}
+       do { \
+               if (gst_tag_list_get_date_time(tag_list, gsttag, &datetime)) {\
+                       if (datetime != NULL) {\
+                               string = g_strdup_printf("%d", gst_date_time_get_year(datetime));\
+                               mm_attrs_set_string_by_name(attribute, playertag, string);\
+                               SECURE_LOGD("metainfo year : %s", string);\
+                               MMPLAYER_FREEIF(string);\
+                               gst_date_time_unref(datetime);\
+                       } \
+               } \
+       } while(0)
 
 #define MMPLAYER_UPDATE_TAG_UINT64(gsttag, attribute, playertag) \
-if (gst_tag_list_get_uint64(tag_list, gsttag, &v_uint64)) {\
-       if (v_uint64) {\
-               /* FIXIT : don't know how to store date */\
-               g_assert(1);\
-               v_uint64 = 0;\
-       } \
-}
+       do { \
+               if (gst_tag_list_get_uint64(tag_list, gsttag, &v_uint64)) {\
+                       if (v_uint64) {\
+                               /* FIXIT : don't know how to store date */\
+                               g_assert(1);\
+                               v_uint64 = 0;\
+                       } \
+               } \
+       } while (0)
 
 #define MMPLAYER_UPDATE_TAG_DOUBLE(gsttag, attribute, playertag) \
-if (gst_tag_list_get_double(tag_list, gsttag, &v_double)) {\
-       if (v_double) {\
-               /* FIXIT : don't know how to store date */\
-               g_assert(1);\
-               v_double = 0;\
-       } \
-}
+       do { \
+               if (gst_tag_list_get_double(tag_list, gsttag, &v_double)) {\
+                       if (v_double) {\
+                               /* FIXIT : don't know how to store date */\
+                               g_assert(1);\
+                               v_double = 0;\
+                       } \
+               } \
+       } while (0)
 
        /* function start */
-       GstTagListtag_list = NULL;
+       GstTagList *tag_list = NULL;
 
        MMHandleType attrs = 0;
 
@@ -919,7 +944,7 @@ if (gst_tag_list_get_double(tag_list, gsttag, &v_double)) {\
                                if (!strcmp(player->video360_metadata.projection_type_string, "equirectangular")) {
                                        player->video360_metadata.projection_type = VIDEO360_PROJECTION_TYPE_EQUIRECTANGULAR;
                                } else {
-                                       LOGE("Projection %s: code not implemented.\n", player->video360_metadata.projection_type_string);
+                                       LOGE("Projection %s: code not implemented.", player->video360_metadata.projection_type_string);
                                        player->is_content_spherical = player->is_video360_enabled = FALSE;
                                }
                        }
@@ -932,24 +957,24 @@ if (gst_tag_list_get_double(tag_list, gsttag, &v_double)) {\
                                } else if (!strcmp(player->video360_metadata.stereo_mode_string, "top-bottom")) {
                                        player->video360_metadata.stereo_mode = VIDEO360_MODE_STEREOSCOPIC_TOP_BOTTOM;
                                } else {
-                                       LOGE("Stereo mode %s: code not implemented.\n", player->video360_metadata.stereo_mode_string);
+                                       LOGE("Stereo mode %s: code not implemented.", player->video360_metadata.stereo_mode_string);
                                        player->is_content_spherical = player->is_video360_enabled = FALSE;
                                }
                        }
                }
        }
 
-       if (mmf_attrs_commit(attrs))
-               LOGE("failed to commit.\n");
+       if (mm_attrs_commit_all(attrs))
+               LOGE("failed to commit.");
 
-       gst_tag_list_free(tag_list);
+       gst_tag_list_unref(tag_list);
 
        return TRUE;
 }
 
 /* if retval is FALSE, it will be dropped for perfomance. */
 static gboolean
-__mmplayer_gst_check_useful_message(mm_player_t *player, GstMessage * message)
+__mmplayer_gst_check_useful_message(mm_player_t *player, GstMessage *message)
 {
        gboolean retval = FALSE;
 
@@ -985,7 +1010,7 @@ __mmplayer_gst_check_useful_message(mm_player_t *player, GstMessage * message)
                retval = TRUE;
                gst_message_parse_buffering(message, &buffer_percent);
                if (buffer_percent != MAX_BUFFER_PERCENT) {
-                       LOGD("[%s] buffering msg %d%%!!\n", GST_OBJECT_NAME(GST_MESSAGE_SRC(message)), buffer_percent);
+                       LOGD("[%s] buffering msg %d%%!!", GST_OBJECT_NAME(GST_MESSAGE_SRC(message)), buffer_percent);
                        break;
                }
 
@@ -995,7 +1020,7 @@ __mmplayer_gst_check_useful_message(mm_player_t *player, GstMessage * message)
                }
 
                if ((player->streamer) && (player->streamer->buffering_state & MM_PLAYER_BUFFERING_IN_PROGRESS)) {
-                       LOGD("[%s] Buffering DONE is detected !!\n", GST_OBJECT_NAME(GST_MESSAGE_SRC(message)));
+                       LOGD("[%s] Buffering DONE is detected !", GST_OBJECT_NAME(GST_MESSAGE_SRC(message)));
                        player->streamer->buffering_state |= MM_PLAYER_BUFFERING_COMPLETE;
                }
 
@@ -1016,27 +1041,27 @@ __mmplayer_update_buffer_setting(mm_player_t *player, GstMessage *buffering_msg)
 {
        MMHandleType attrs = 0;
        guint64 data_size = 0;
-       gcharpath = NULL;
+       gchar *path = NULL;
        gint64 pos_nsec = 0;
        struct stat sb;
 
        MMPLAYER_RETURN_IF_FAIL(player && player->pipeline && player->pipeline->mainbin);
 
-       __mmplayer_gst_get_position(player, MM_PLAYER_POS_FORMAT_TIME, &pos_nsec);      /* to update player->last_position */
+       __mmplayer_gst_get_position(player, &pos_nsec); /* to update player->last_position */
 
        attrs = MMPLAYER_GET_ATTRS(player);
        if (!attrs) {
-               LOGE("fail to get attributes.\n");
+               LOGE("fail to get attributes.");
                return;
        }
 
        if (!MMPLAYER_IS_STREAMING(player) && (player->can_support_codec & FOUND_PLUGIN_VIDEO)) {
                mm_attrs_get_string_by_name(attrs, "profile_uri", &path);
-
                if (stat(path, &sb) == 0)
                        data_size = (guint64)sb.st_size;
-       } else if (MMPLAYER_IS_HTTP_STREAMING(player))
+       } else if (MMPLAYER_IS_HTTP_STREAMING(player)) {
                data_size = player->http_content_size;
+       }
 
        __mm_player_streaming_buffering(player->streamer, buffering_msg, data_size, player->last_position, player->duration);
        __mm_player_streaming_sync_property(player->streamer, player->pipeline->mainbin[MMPLAYER_M_AUTOPLUG].gst);
@@ -1045,7 +1070,7 @@ __mmplayer_update_buffer_setting(mm_player_t *player, GstMessage *buffering_msg)
 }
 
 static int
-__mmplayer_handle_buffering_message(mm_player_t* player)
+__mmplayer_handle_buffering_playback(mm_player_t *player)
 {
        int ret = MM_ERROR_NONE;
        MMPlayerStateType prev_state = MM_PLAYER_STATE_NONE;
@@ -1054,7 +1079,7 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
        MMPlayerStateType pending_state = MM_PLAYER_STATE_NONE;
 
        if (!player || !player->streamer || (MMPLAYER_IS_LIVE_STREAMING(player) && MMPLAYER_IS_RTSP_STREAMING(player))) {
-               LOGW("do nothing for buffering msg\n");
+               LOGW("do nothing for buffering msg");
                ret = MM_ERROR_PLAYER_INVALID_STATE;
                goto exit;
        }
@@ -1082,14 +1107,14 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
                                        break;
 
                                case MM_PLAYER_STATE_PAUSED:
-                                       LOGD("player is already going to paused state, there is nothing to do.\n");
+                                       LOGD("player is already going to paused state, there is nothing to do.");
                                        break;
 
                                case MM_PLAYER_STATE_NONE:
                                case MM_PLAYER_STATE_NULL:
                                case MM_PLAYER_STATE_READY:
                                default:
-                                       LOGW("invalid pending state [%s].\n", MMPLAYER_STATE_GET_NAME(pending_state));
+                                       LOGW("invalid pending state [%s].", MMPLAYER_STATE_GET_NAME(pending_state));
                                        break;
                                }
                        }
@@ -1119,13 +1144,13 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
                                        break;
 
                                case MM_PLAYER_STATE_PLAYING:
-                                       LOGD("player is already going to playing state, there is nothing to do.\n");
+                                       LOGD("player is already going to playing state, there is nothing to do.");
                                        break;
 
                                case MM_PLAYER_STATE_NULL:
                                case MM_PLAYER_STATE_READY:
                                default:
-                                       LOGW("invalid pending state [%s].\n", MMPLAYER_STATE_GET_NAME(pending_state));
+                                       LOGW("invalid pending state [%s].", MMPLAYER_STATE_GET_NAME(pending_state));
                                        break;
                                }
                        }
@@ -1135,7 +1160,7 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
                case MM_PLAYER_STATE_READY:
                case MM_PLAYER_STATE_NONE:
                default:
-                       LOGW("invalid target state [%s].\n", MMPLAYER_STATE_GET_NAME(target_state));
+                       LOGW("invalid target state [%s].", MMPLAYER_STATE_GET_NAME(target_state));
                        break;
                }
        } else {
@@ -1148,7 +1173,7 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
                                if (current_state != MM_PLAYER_STATE_PAUSED) {
                                        /* rtsp streaming pause makes rtsp server stop sending data. */
                                        if (!MMPLAYER_IS_RTSP_STREAMING(player)) {
-                                               LOGD("set pause state during buffering\n");
+                                               LOGD("set pause state during buffering");
                                                __mmplayer_gst_pause(player, TRUE);
                                        }
                                }
@@ -1167,7 +1192,7 @@ __mmplayer_handle_buffering_message(mm_player_t* player)
                case MM_PLAYER_STATE_NULL:
                case MM_PLAYER_STATE_READY:
                default:
-                       LOGW("invalid pending state [%s].\n", MMPLAYER_STATE_GET_NAME(pending_state));
+                       LOGW("invalid pending state [%s].", MMPLAYER_STATE_GET_NAME(pending_state));
                        break;
                }
        }
@@ -1191,7 +1216,7 @@ __mmplayer_adaptive_var_info(const VariantData *self, gpointer user_data)
 }
 
 static gboolean
-__mmplayer_gst_handle_duration(mm_player_t* player, GstMessage* msg)
+__mmplayer_gst_handle_duration(mm_player_t *player, GstMessage *msg)
 {
        gint64 bytes = 0;
 
@@ -1206,7 +1231,7 @@ __mmplayer_gst_handle_duration(mm_player_t* player, GstMessage* msg)
 
                if (gst_element_query_duration(GST_ELEMENT_CAST(msg->src), GST_FORMAT_BYTES, &bytes)) {
                        LOGD("data total size of http content: %"G_GINT64_FORMAT, bytes);
-                       player->http_content_size = (bytes > 0) ? (bytes) : (0);
+                       player->http_content_size = (bytes > 0) ? bytes : 0;
                }
        } else {
                /* handling audio clip which has vbr. means duration is keep changing */
@@ -1221,20 +1246,20 @@ __mmplayer_gst_handle_duration(mm_player_t* player, GstMessage* msg)
 static gboolean
 __mmplayer_eos_timer_cb(gpointer u_data)
 {
-       mm_player_tplayer = NULL;
+       mm_player_t *player = NULL;
        MMHandleType attrs = 0;
        int count = 0;
 
        MMPLAYER_RETURN_VAL_IF_FAIL(u_data, FALSE);
 
-       player = (mm_player_t*) u_data;
+       player = (mm_player_t *)u_data;
        attrs = MMPLAYER_GET_ATTRS(player);
 
        mm_attrs_get_int_by_name(attrs, "profile_play_count", &count);
 
        if (count == -1) {
                gint ret_value = 0;
-               ret_value = __mmplayer_gst_set_position(player, MM_PLAYER_POS_FORMAT_TIME, 0, TRUE);
+               ret_value = __mmplayer_gst_set_position(player, 0, TRUE);
                if (ret_value != MM_ERROR_NONE)
                        LOGE("seeking to 0 failed in repeat play");
        } else {
@@ -1247,16 +1272,16 @@ __mmplayer_eos_timer_cb(gpointer u_data)
 }
 
 static void
-__mmplayer_handle_eos_delay(mm_player_tplayer, int delay_in_ms)
+__mmplayer_handle_eos_delay(mm_player_t *player, int delay_in_ms)
 {
        MMPLAYER_RETURN_IF_FAIL(player);
 
        /* post now if delay is zero */
-       if (delay_in_ms == 0 || player->set_mode.pcm_extraction) {
-               LOGD("eos delay is zero. posting EOS now\n");
+       if (delay_in_ms == 0 || player->audio_stream_render_cb) {
+               LOGD("eos delay is zero. posting EOS now");
                MMPLAYER_POST_MSG(player, MM_MESSAGE_END_OF_STREAM, NULL);
 
-               if (player->set_mode.pcm_extraction)
+               if (player->audio_stream_render_cb)
                        __mmplayer_cancel_eos_timer(player);
 
                return;
@@ -1267,7 +1292,7 @@ __mmplayer_handle_eos_delay(mm_player_t* player, int delay_in_ms)
 
        /* init new timeout */
        /* NOTE : consider give high priority to this timer */
-       LOGD("posting EOS message after [%d] msec\n", delay_in_ms);
+       LOGD("posting EOS message after [%d] msec", delay_in_ms);
 
        player->eos_timer = g_timeout_add(delay_in_ms,
                __mmplayer_eos_timer_cb, player);
@@ -1277,12 +1302,13 @@ __mmplayer_handle_eos_delay(mm_player_t* player, int delay_in_ms)
 
        /* check timer is valid. if not, send EOS now */
        if (player->eos_timer == 0) {
-               LOGW("creating timer for delayed EOS has failed. sending EOS now\n");
+               LOGW("creating timer for delayed EOS has failed. sending EOS now");
                MMPLAYER_POST_MSG(player, MM_MESSAGE_END_OF_STREAM, NULL);
        }
 }
 
-static int __mmplayer_gst_pending_seek(mm_player_t* player)
+static int
+__mmplayer_gst_pending_seek(mm_player_t *player)
 {
        MMPlayerStateType current_state = MM_PLAYER_STATE_NONE;
        int ret = MM_ERROR_NONE;
@@ -1292,7 +1318,7 @@ static int __mmplayer_gst_pending_seek(mm_player_t* player)
        MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline, MM_ERROR_PLAYER_NOT_INITIALIZED);
 
        if (!player->pending_seek.is_pending) {
-               LOGD("pending seek is not reserved. nothing to do.\n");
+               LOGD("pending seek is not reserved. nothing to do.");
                return ret;
        }
 
@@ -1300,19 +1326,18 @@ static int __mmplayer_gst_pending_seek(mm_player_t* player)
        current_state = MMPLAYER_CURRENT_STATE(player);
 
        if (current_state != MM_PLAYER_STATE_PAUSED && current_state != MM_PLAYER_STATE_PLAYING) {
-               LOGW("try to pending seek in %s state, try next time. \n",
+               LOGW("try to pending seek in %s state, try next time. ",
                        MMPLAYER_STATE_GET_NAME(current_state));
                return ret;
        }
 
-       LOGD("trying to play from(%"G_GINT64_FORMAT") pending position\n", player->pending_seek.pos);
+       LOGD("trying to play from(%"G_GINT64_FORMAT") pending position", player->pending_seek.pos);
 
-       ret = __mmplayer_gst_set_position(player, player->pending_seek.format, player->pending_seek.pos, FALSE);
+       ret = __mmplayer_gst_set_position(player, player->pending_seek.pos, FALSE);
+       if (ret != MM_ERROR_NONE)
+               LOGE("failed to seek pending postion. just keep staying current position.");
 
-       if (MM_ERROR_NONE != ret)
-               LOGE("failed to seek pending postion. just keep staying current position.\n");
-
-       player->pending_seek.is_pending = FALSE;
+       player->pending_seek.is_pending = false;
 
        MMPLAYER_FLEAVE();
 
@@ -1320,7 +1345,7 @@ static int __mmplayer_gst_pending_seek(mm_player_t* player)
 }
 
 static void
-__mmplayer_gst_handle_async(mm_player_t* player, gboolean async, enum MMPlayerSinkType type)
+__mmplayer_gst_set_async(mm_player_t *player, gboolean async, enum MMPlayerSinkType type)
 {
        MMPlayerGstElement *videobin = NULL, *audiobin = NULL, *textbin = NULL;
 
@@ -1345,7 +1370,7 @@ __mmplayer_gst_handle_async(mm_player_t* player, gboolean async, enum MMPlayerSi
 }
 
 static void
-__mmplayer_drop_subtitle(mm_player_tplayer, gboolean is_drop)
+__mmplayer_drop_subtitle(mm_player_t *player, gboolean is_drop)
 {
        MMPlayerGstElement *textbin;
        MMPLAYER_FENTER();
@@ -1359,18 +1384,18 @@ __mmplayer_drop_subtitle(mm_player_t* player, gboolean is_drop)
        textbin = player->pipeline->textbin;
 
        if (is_drop) {
-               LOGD("Drop subtitle text after getting EOS\n");
+               LOGD("Drop subtitle text after getting EOS");
 
-               __mmplayer_gst_handle_async(player, FALSE, MMPLAYER_TEXT_SINK);
+               __mmplayer_gst_set_async(player, FALSE, MMPLAYER_TEXT_SINK);
                g_object_set(textbin[MMPLAYER_T_IDENTITY].gst, "drop-probability", (gfloat)1.0, NULL);
 
                player->is_subtitle_force_drop = TRUE;
        } else {
                if (player->is_subtitle_force_drop == TRUE) {
-                       LOGD("Enable subtitle data path without drop\n");
+                       LOGD("Enable subtitle data path without drop");
 
                        g_object_set(textbin[MMPLAYER_T_IDENTITY].gst, "drop-probability", (gfloat)0.0, NULL);
-                       __mmplayer_gst_handle_async(player, TRUE, MMPLAYER_TEXT_SINK);
+                       __mmplayer_gst_set_async(player, TRUE, MMPLAYER_TEXT_SINK);
 
                        LOGD("non-connected with external display");
 
@@ -1379,486 +1404,597 @@ __mmplayer_drop_subtitle(mm_player_t* player, gboolean is_drop)
        }
 }
 
-
-#if 0
-#endif
-
-int
-__mmplayer_gst_set_state(mm_player_t* player, GstElement * element,  GstState state, gboolean async, gint timeout)
+static void
+__mmplayer_gst_handle_eos_message(mm_player_t *player, GstMessage *msg)
 {
-       GstState element_state = GST_STATE_VOID_PENDING;
-       GstState element_pending_state = GST_STATE_VOID_PENDING;
-       GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
+       MMHandleType attrs = 0;
+       gint count = 0;
 
        MMPLAYER_FENTER();
 
-       MMPLAYER_RETURN_VAL_IF_FAIL(player, MM_ERROR_PLAYER_NOT_INITIALIZED);
-       MMPLAYER_RETURN_VAL_IF_FAIL(element, MM_ERROR_INVALID_ARGUMENT);
+       /* NOTE : EOS event is comming multiple time. watch out it */
+       /* check state. we only process EOS when pipeline state goes to PLAYING */
+       if (!(player->cmd == MMPLAYER_COMMAND_START || player->cmd == MMPLAYER_COMMAND_RESUME)) {
+               LOGD("EOS received on non-playing state. ignoring it");
+               return;
+       }
 
-       LOGD("setting [%s] element state to : %s\n", GST_ELEMENT_NAME(element), gst_element_state_get_name(state));
+       if (player->pipeline && player->pipeline->textbin)
+               __mmplayer_drop_subtitle(player, TRUE);
 
-       /* set state */
-       ret = gst_element_set_state(element, state);
+       if ((player->audio_stream_render_cb) && (!player->audio_stream_sink_sync))
+               __mmplayer_audio_stream_clear_buffer(player, TRUE);
 
-       if (ret == GST_STATE_CHANGE_FAILURE) {
-               LOGE("failed to set [%s] state\n", GST_ELEMENT_NAME(element));
+       /* rewind if repeat count is greater then zero */
+       /* get play count */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (attrs) {
+               mm_attrs_get_int_by_name(attrs, "profile_play_count", &count);
 
-               /* dump state of all element */
-               __mmplayer_dump_pipeline_state(player);
+               LOGD("play count: %d, playback rate: %f", count, player->playback_rate);
 
-               return MM_ERROR_PLAYER_INTERNAL;
-       }
+               if (count == -1 || player->playback_rate < 0.0) /* default value is 1 */ {
+                       if (player->playback_rate < 0.0) {
+                               player->resumed_by_rewind = TRUE;
+                               _mmplayer_set_mute((MMHandleType)player, 0);
+                               MMPLAYER_POST_MSG(player, MM_MESSAGE_RESUMED_BY_REW, NULL);
+                       }
 
-       /* return here so state transition to be done in async mode */
-       if (async) {
-               LOGD("async state transition. not waiting for state complete.\n");
-               return MM_ERROR_NONE;
+                       __mmplayer_handle_eos_delay(player, player->ini.delay_before_repeat);
+
+                       /* initialize */
+                       player->sent_bos = FALSE;
+
+                       LOGD("do not post eos msg for repeating");
+                       return;
+               }
        }
 
-       /* wait for state transition */
-       ret = gst_element_get_state(element, &element_state, &element_pending_state, timeout * GST_SECOND);
+       if (player->pipeline)
+               MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-eos");
 
-       if (ret == GST_STATE_CHANGE_FAILURE || (state != element_state)) {
-               LOGE("failed to change [%s] element state to [%s] within %d sec\n",
-                       GST_ELEMENT_NAME(element),
-                       gst_element_state_get_name(state), timeout);
+       /* post eos message to application */
+       __mmplayer_handle_eos_delay(player, player->ini.eos_delay);
 
-               LOGE(" [%s] state : %s   pending : %s \n",
-                       GST_ELEMENT_NAME(element),
-                       gst_element_state_get_name(element_state),
-                       gst_element_state_get_name(element_pending_state));
+       /* reset last position */
+       player->last_position = 0;
+
+       MMPLAYER_FLEAVE();
+       return;
+}
+
+static void
+__mmplayer_gst_handle_error_message(mm_player_t *player, GstMessage *msg)
+{
+       GError *error = NULL;
+       gchar *debug = NULL;
+
+       MMPLAYER_FENTER();
+
+       /* generating debug info before returning error */
+       MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-error");
+
+       /* get error code */
+       gst_message_parse_error(msg, &error, &debug);
+
+       if (gst_structure_has_name(gst_message_get_structure(msg), "streaming_error")) {
+               /* Note : the streaming error from the streaming source is handled
+                *       using __mmplayer_handle_streaming_error.
+                */
+               __mmplayer_handle_streaming_error(player, msg);
 
                /* dump state of all element */
                __mmplayer_dump_pipeline_state(player);
+       } else {
+               /* traslate gst error code to msl error code. then post it
+                * to application if needed
+                */
+               __mmplayer_handle_gst_error(player, msg, error);
 
-               return MM_ERROR_PLAYER_INTERNAL;
+               if (debug)
+                       LOGE("error debug : %s", debug);
        }
 
-       LOGD("[%s] element state has changed\n", GST_ELEMENT_NAME(element));
+       MMPLAYER_FREEIF(debug);
+       g_error_free(error);
 
        MMPLAYER_FLEAVE();
-
-       return MM_ERROR_NONE;
+       return;
 }
 
-void
-__mmplayer_gst_callback(GstMessage *msg, gpointer data)
+static void
+__mmplayer_gst_handle_buffering_message(mm_player_t *player, GstMessage *msg)
 {
-       mm_player_t* player = (mm_player_t*)(data);
+       MMMessageParamType msg_param = {0, };
+       int bRet = MM_ERROR_NONE;
 
-       MMPLAYER_RETURN_IF_FAIL(player);
-       MMPLAYER_RETURN_IF_FAIL(msg && GST_IS_MESSAGE(msg));
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_IF_FAIL(player && player->pipeline && player->pipeline->mainbin);
 
-       switch (GST_MESSAGE_TYPE(msg)) {
-       case GST_MESSAGE_UNKNOWN:
-               LOGD("unknown message received\n");
-               break;
+       if (!MMPLAYER_IS_STREAMING(player)) {
+               LOGW("this is not streaming playback.");
+               return;
+       }
 
-       case GST_MESSAGE_EOS:
-               {
-                       MMHandleType attrs = 0;
-                       gint count = 0;
+       MMPLAYER_CMD_LOCK(player);
 
-                       LOGD("GST_MESSAGE_EOS received\n");
+       if (!player->streamer) {
+               LOGW("Pipeline is shutting down");
+               MMPLAYER_CMD_UNLOCK(player);
+               return;
+       }
 
-                       /* NOTE : EOS event is comming multiple time. watch out it */
-                       /* check state. we only process EOS when pipeline state goes to PLAYING */
-                       if (!(player->cmd == MMPLAYER_COMMAND_START || player->cmd == MMPLAYER_COMMAND_RESUME)) {
-                               LOGD("EOS received on non-playing state. ignoring it\n");
-                               break;
-                       }
+       /* ignore the remained buffering message till getting 100% msg */
+       if (player->streamer->buffering_state == MM_PLAYER_BUFFERING_COMPLETE) {
+               gint buffer_percent = 0;
 
-                       if (player->pipeline) {
-                               if (player->pipeline->textbin)
-                                       __mmplayer_drop_subtitle(player, TRUE);
+               gst_message_parse_buffering(msg, &buffer_percent);
 
-                               if ((player->audio_stream_cb) && (player->set_mode.pcm_extraction) && (!player->audio_stream_render_cb_ex)) {
-                                       GstPad *pad = NULL;
+               if (buffer_percent == MAX_BUFFER_PERCENT) {
+                       LOGD("Ignored all the previous buffering msg!(got %d%%)", buffer_percent);
+                       player->streamer->buffering_state = MM_PLAYER_BUFFERING_DEFAULT;
+               }
+               MMPLAYER_CMD_UNLOCK(player);
+               return;
+       }
 
-                                       pad = gst_element_get_static_pad(player->pipeline->audiobin[MMPLAYER_A_SINK].gst, "sink");
+       /* ignore the remained buffering message */
+       if (player->streamer->buffering_state == MM_PLAYER_BUFFERING_ABORT) {
+               gint buffer_percent = 0;
 
-                                       LOGD("release audio callback\n");
+               gst_message_parse_buffering(msg, &buffer_percent);
 
-                                       /* release audio callback */
-                                       gst_pad_remove_probe(pad, player->audio_cb_probe_id);
-                                       player->audio_cb_probe_id = 0;
-                                       /* audio callback should be free because it can be called even though probe remove.*/
-                                       player->audio_stream_cb = NULL;
-                                       player->audio_stream_cb_user_param = NULL;
+               LOGD("interrupted buffering -last posted %d %%, new per %d %%",
+                                       player->streamer->buffering_percent, buffer_percent);
 
-                               }
-                       }
-                       if ((player->audio_stream_render_cb_ex) && (!player->audio_stream_sink_sync))
-                               __mmplayer_audio_stream_clear_buffer(player, TRUE);
+               if (player->streamer->buffering_percent > buffer_percent || buffer_percent <= 0) {
+                       player->streamer->buffering_state = MM_PLAYER_BUFFERING_DEFAULT;
+                       player->streamer->buffering_req.is_pre_buffering = FALSE;
 
-                       /* rewind if repeat count is greater then zero */
-                       /* get play count */
-                       attrs = MMPLAYER_GET_ATTRS(player);
+                       LOGD("interrupted buffering - need to enter the buffering mode again - %d %%", buffer_percent);
+               } else {
+                       LOGD("interrupted buffering - ignored the remained buffering msg!");
+                       MMPLAYER_CMD_UNLOCK(player);
+                       return;
+               }
+       }
 
-                       if (attrs) {
-                               mm_attrs_get_int_by_name(attrs, "profile_play_count", &count);
+       __mmplayer_update_buffer_setting(player, msg);
 
-                               LOGD("play count: %d, playback rate: %f\n", count, player->playback_rate);
+       bRet = __mmplayer_handle_buffering_playback(player); /* playback control */
 
-                               if (count == -1 || player->playback_rate < 0.0) /* default value is 1 */ {
-                                       if (player->playback_rate < 0.0) {
-                                               player->resumed_by_rewind = TRUE;
-                                               _mmplayer_set_mute((MMHandleType)player, 0);
-                                               MMPLAYER_POST_MSG(player, MM_MESSAGE_RESUMED_BY_REW, NULL);
-                                       }
+       if (bRet == MM_ERROR_NONE) {
+               msg_param.connection.buffering = player->streamer->buffering_percent;
+               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
+
+               if (MMPLAYER_IS_RTSP_STREAMING(player) &&
+                       player->pending_resume &&
+                       (player->streamer->buffering_percent >= MAX_BUFFER_PERCENT)) {
 
-                                       __mmplayer_handle_eos_delay(player, player->ini.delay_before_repeat);
+                       player->is_external_subtitle_added_now = FALSE;
+                       player->pending_resume = FALSE;
+                       _mmplayer_resume((MMHandleType)player);
+               }
 
-                                       /* initialize */
-                                       player->sent_bos = FALSE;
+               if (MMPLAYER_IS_RTSP_STREAMING(player) &&
+                       (player->streamer->buffering_percent >= MAX_BUFFER_PERCENT)) {
 
-                                       /* not posting eos when repeating */
-                                       break;
+                       if (player->seek_state == MMPLAYER_SEEK_IN_PROGRESS) {
+                               if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PAUSED) {
+                                       player->seek_state = MMPLAYER_SEEK_NONE;
+                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
+                               } else if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PLAYING) {
+                                       /* Considering the async state trasition in case of RTSP.
+                                          After getting state change gst msg, seek cmpleted msg will be posted. */
+                                       player->seek_state = MMPLAYER_SEEK_COMPLETED;
                                }
                        }
+               }
+       } else if (bRet == MM_ERROR_PLAYER_INVALID_STATE) {
+               if (!player->streamer) {
+                       LOGW("player->streamer is NULL, so discarding the buffering percent update");
+                       MMPLAYER_CMD_UNLOCK(player);
+                       return;
+               }
 
-                       if (player->pipeline)
-                               MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-eos");
+               if ((MMPLAYER_IS_LIVE_STREAMING(player)) && (MMPLAYER_IS_RTSP_STREAMING(player))) {
 
-                       /* post eos message to application */
-                       __mmplayer_handle_eos_delay(player, player->ini.eos_delay);
+                       LOGD("player->last_position=%"G_GINT64_FORMAT" , player->streamer->buffering_percent=%d",
+                                       GST_TIME_AS_SECONDS(player->last_position), player->streamer->buffering_percent);
 
-                       /* reset last position */
-                       player->last_position = 0;
+                       if ((GST_TIME_AS_SECONDS(player->last_position) <= 0) && (MMPLAYER_CURRENT_STATE(player) == MM_PLAYER_STATE_PAUSED)) {
+                               msg_param.connection.buffering = player->streamer->buffering_percent;
+                               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
+                       } else {
+                               LOGD("Not updating Buffering Message for Live RTSP case !!!");
+                       }
+               } else {
+                       msg_param.connection.buffering = player->streamer->buffering_percent;
+                       MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
                }
-               break;
+       }
+       MMPLAYER_CMD_UNLOCK(player);
 
-       case GST_MESSAGE_ERROR:
-               {
-                       GError *error = NULL;
-                       gchar* debug = NULL;
+       MMPLAYER_FLEAVE();
+       return;
 
-                       /* generating debug info before returning error */
-                       MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-error");
+}
 
-                       /* get error code */
-                       gst_message_parse_error(msg, &error, &debug);
+static void
+__mmplayer_gst_handle_state_message(mm_player_t *player, GstMessage *msg)
+{
+       MMPlayerGstElement *mainbin;
+       const GValue *voldstate, *vnewstate, *vpending;
+       GstState oldstate = GST_STATE_NULL;
+       GstState newstate = GST_STATE_NULL;
+       GstState pending = GST_STATE_NULL;
 
-                       if (gst_structure_has_name(gst_message_get_structure(msg), "streaming_error")) {
-                               /* Note : the streaming error from the streaming source is handled
-                                *   using __mmplayer_handle_streaming_error.
-                                */
-                               __mmplayer_handle_streaming_error(player, msg);
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_IF_FAIL(player && player->pipeline && player->pipeline->mainbin);
 
-                               /* dump state of all element */
-                               __mmplayer_dump_pipeline_state(player);
-                       } else {
-                               /* traslate gst error code to msl error code. then post it
-                                * to application if needed
-                                */
-                               __mmplayer_handle_gst_error(player, msg, error);
+       mainbin = player->pipeline->mainbin;
 
-                               if (debug)
-                                       LOGE("error debug : %s", debug);
-                       }
+       /* we only handle messages from pipeline */
+       if (msg->src != (GstObject *)mainbin[MMPLAYER_M_PIPE].gst)
+               return;
 
-                       if (MMPLAYER_IS_HTTP_PD(player))
-                               _mmplayer_unrealize_pd_downloader((MMHandleType)player);
+       /* get state info from msg */
+       voldstate = gst_structure_get_value(gst_message_get_structure(msg), "old-state");
+       vnewstate = gst_structure_get_value(gst_message_get_structure(msg), "new-state");
+       vpending = gst_structure_get_value(gst_message_get_structure(msg), "pending-state");
 
-                       MMPLAYER_FREEIF(debug);
-                       g_error_free(error);
-               }
-               break;
+       if (!voldstate || !vnewstate) {
+               LOGE("received msg has wrong format.");
+               return;
+       }
 
-       case GST_MESSAGE_WARNING:
-               {
-                       char* debug = NULL;
-                       GError* error = NULL;
+       oldstate = (GstState)voldstate->data[0].v_int;
+       newstate = (GstState)vnewstate->data[0].v_int;
+       if (vpending)
+               pending = (GstState)vpending->data[0].v_int;
 
-                       gst_message_parse_warning(msg, &error, &debug);
+       LOGD("state changed [%s] : %s ---> %s     final : %s",
+               GST_OBJECT_NAME(GST_MESSAGE_SRC(msg)),
+               gst_element_state_get_name((GstState)oldstate),
+               gst_element_state_get_name((GstState)newstate),
+               gst_element_state_get_name((GstState)pending));
 
-                       LOGD("warning : %s\n", error->message);
-                       LOGD("debug : %s\n", debug);
+       if (newstate == GST_STATE_PLAYING) {
+               if ((MMPLAYER_IS_RTSP_STREAMING(player)) && (player->pending_seek.is_pending)) {
 
-                       MMPLAYER_POST_MSG(player, MM_MESSAGE_WARNING, NULL);
+                       int retVal = MM_ERROR_NONE;
+                       LOGD("trying to play from (%"G_GINT64_FORMAT") pending position", player->pending_seek.pos);
 
-                       MMPLAYER_FREEIF(debug);
-                       g_error_free(error);
-               }
-               break;
+                       retVal = __mmplayer_gst_set_position(player, player->pending_seek.pos, TRUE);
 
-       case GST_MESSAGE_TAG:
-               {
-                       LOGD("GST_MESSAGE_TAG\n");
-                       if (!__mmplayer_gst_extract_tag_from_msg(player, msg))
-                               LOGW("failed to extract tags from gstmessage\n");
+                       if (MM_ERROR_NONE != retVal)
+                               LOGE("failed to seek pending postion. just keep staying current position.");
+
+                       player->pending_seek.is_pending = false;
                }
-               break;
+       }
 
-       case GST_MESSAGE_BUFFERING:
+       if (oldstate == newstate) {
+               LOGD("pipeline reports state transition to old state");
+               return;
+       }
+
+       switch (newstate) {
+       case GST_STATE_PAUSED:
                {
-                       MMMessageParamType msg_param = {0, };
-                       int bRet = MM_ERROR_NONE;
+                       gboolean prepare_async = FALSE;
 
-                       if (!(player->pipeline && player->pipeline->mainbin)) {
-                               LOGE("Pipeline is not initialized");
-                               break;
+                       if (!player->sent_bos && oldstate == GST_STATE_READY) {
+                               // managed prepare async case
+                               mm_attrs_get_int_by_name(player->attrs, "profile_prepare_async", &prepare_async);
+                               LOGD("checking prepare mode for async transition - %d", prepare_async);
                        }
 
-                       if (!MMPLAYER_IS_STREAMING(player))
-                               break;
-
-                       if (player->pd_mode == MM_PLAYER_PD_MODE_URI) {
-                               if (!MMPLAYER_CMD_TRYLOCK(player)) {
-                                       /* skip the playback control by buffering msg while user request is handled. */
-                                       gint per = 0;
-
-                                       LOGW("[PD mode] can't get cmd lock, only post buffering msg");
+                       if (MMPLAYER_IS_STREAMING(player) || MMPLAYER_IS_MS_BUFF_SRC(player) || prepare_async) {
+                               MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PAUSED);
 
-                                       gst_message_parse_buffering(msg, &per);
-                                       LOGD("[PD mode][%s] buffering %d %%....", GST_OBJECT_NAME(GST_MESSAGE_SRC(msg)), per);
+                               if (MMPLAYER_IS_STREAMING(player) && (player->streamer))
+                                       __mm_player_streaming_set_content_bitrate(player->streamer,
+                                               player->total_maximum_bitrate, player->total_bitrate);
 
-                                       msg_param.connection.buffering = per;
-                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
-                                       break;
+                               if (player->pending_seek.is_pending) {
+                                       LOGW("trying to do pending seek");
+                                       MMPLAYER_CMD_LOCK(player);
+                                       __mmplayer_gst_pending_seek(player);
+                                       MMPLAYER_CMD_UNLOCK(player);
                                }
-                       } else {
-                               MMPLAYER_CMD_LOCK(player);
                        }
+               }
+               break;
 
-                       if (!player->streamer) {
-                               LOGW("Pipeline is shutting down");
-                               MMPLAYER_CMD_UNLOCK(player);
-                               break;
-                       }
+       case GST_STATE_PLAYING:
+               {
+                       if (MMPLAYER_IS_STREAMING(player)) {
+                               // managed prepare async case when buffering is completed
+                               // pending state should be reset otherwise, it's still playing even though it's resumed after bufferging.
+                               if ((MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PLAYING) ||
+                                       (MMPLAYER_PENDING_STATE(player) == MM_PLAYER_STATE_PLAYING))
+                                       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
 
-                       /* ignore the remained buffering message till getting 100% msg */
-                       if (player->streamer->buffering_state == MM_PLAYER_BUFFERING_COMPLETE) {
-                               gint buffer_percent = 0;
+                               if (MMPLAYER_IS_RTSP_STREAMING(player) && (MMPLAYER_IS_LIVE_STREAMING(player))) {
 
-                               gst_message_parse_buffering(msg, &buffer_percent);
+                                       LOGD("Current Buffering Percent = %d", player->streamer->buffering_percent);
+                                       if (player->streamer->buffering_percent < 100) {
 
-                               if (buffer_percent == MAX_BUFFER_PERCENT) {
-                                       LOGD("Ignored all the previous buffering msg!(got %d%%)\n", buffer_percent);
-                                       player->streamer->buffering_state = MM_PLAYER_BUFFERING_DEFAULT;
+                                               MMMessageParamType msg_param = {0, };
+                                               LOGW("Posting Buffering Completed Message to Application !!!");
+
+                                               msg_param.connection.buffering = 100;
+                                               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
+                                       }
                                }
-                               MMPLAYER_CMD_UNLOCK(player);
-                               break;
                        }
 
-                       /* ignore the remained buffering message */
-                       if (player->streamer->buffering_state == MM_PLAYER_BUFFERING_ABORT) {
-                               gint buffer_percent = 0;
-
-                               gst_message_parse_buffering(msg, &buffer_percent);
+                       if (player->gapless.stream_changed) {
+                               __mmplayer_update_content_attrs(player, ATTR_ALL);
+                               player->gapless.stream_changed = FALSE;
+                       }
 
-                               LOGD("interrupted buffering -last posted %d %%, new per %d %%",
-                                                       player->streamer->buffering_percent, buffer_percent);
+                       if (player->seek_state == MMPLAYER_SEEK_COMPLETED) {
+                               player->seek_state = MMPLAYER_SEEK_NONE;
+                               MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
+                       }
+               }
+               break;
+       case GST_STATE_VOID_PENDING:
+       case GST_STATE_NULL:
+       case GST_STATE_READY:
+       default:
+               break;
+       }
 
-                               if (player->streamer->buffering_percent > buffer_percent || buffer_percent <= 0) {
-                                       player->streamer->buffering_state = MM_PLAYER_BUFFERING_DEFAULT;
-                                       player->streamer->buffering_req.is_pre_buffering = FALSE;
+       MMPLAYER_FLEAVE();
+       return;
+}
 
-                                       LOGD("interrupted buffering - need to enter the buffering mode again - %d %%", buffer_percent);
-                               } else {
-                                       LOGD("interrupted buffering - ignored the remained buffering msg!");
-                                       MMPLAYER_CMD_UNLOCK(player);
-                                       break;
-                               }
-                       }
+static void
+__mmplayer_gst_handle_element_message(mm_player_t *player, GstMessage *msg)
+{
+       const gchar *structure_name;
+       gint count = 0, idx = 0;
+       MMHandleType attrs = 0;
 
-                       __mmplayer_update_buffer_setting(player, msg);
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_IF_FAIL(player && player->pipeline && player->pipeline->mainbin);
 
-                       bRet = __mmplayer_handle_buffering_message(player); /* playback control */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (!attrs) {
+               LOGE("Failed to get content attribute");
+               return;
+       }
 
-                       if (bRet == MM_ERROR_NONE) {
-                               msg_param.connection.buffering = player->streamer->buffering_percent;
-                               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
+       if (gst_message_get_structure(msg) == NULL)
+               return;
 
-                               if (MMPLAYER_IS_RTSP_STREAMING(player) &&
-                                       player->pending_resume &&
-                                       (player->streamer->buffering_percent >= MAX_BUFFER_PERCENT)) {
+       structure_name = gst_structure_get_name(gst_message_get_structure(msg));
+       if (!structure_name)
+               return;
 
-                                       player->is_external_subtitle_added_now = FALSE;
-                                       player->pending_resume = FALSE;
-                                       _mmplayer_resume((MMHandleType)player);
-                               }
+       LOGD("GST_MESSAGE_ELEMENT %s from %s", structure_name, GST_OBJECT_NAME(GST_MESSAGE_SRC(msg)));
 
-                               if (MMPLAYER_IS_RTSP_STREAMING(player) &&
-                                       (player->streamer->buffering_percent >= MAX_BUFFER_PERCENT)) {
+       if (!strcmp(structure_name, "adaptive-streaming-variant")) {
+               const GValue *var_info = NULL;
 
-                                       if (player->seek_state == MMPLAYER_SEEK_IN_PROGRESS) {
-                                               if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PAUSED) {
-                                                       player->seek_state = MMPLAYER_SEEK_NONE;
-                                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
-                                               } else if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PLAYING) {
-                                                       /* Considering the async state trasition in case of RTSP.
-                                                          After getting state change gst msg, seek cmpleted msg will be posted. */
-                                                       player->seek_state = MMPLAYER_SEEK_COMPLETED;
-                                               }
-                                       }
-                               }
-                       } else if (bRet == MM_ERROR_PLAYER_INVALID_STATE) {
-                               if (!player->streamer) {
-                                       LOGW("player->streamer is NULL, so discarding the buffering percent update\n");
-                                       MMPLAYER_CMD_UNLOCK(player);
-                                       break;
-                               }
+               var_info = gst_structure_get_value(gst_message_get_structure(msg), "video-variant-info");
+               if (var_info != NULL) {
+                       if (player->adaptive_info.var_list)
+                               g_list_free_full(player->adaptive_info.var_list, g_free);
 
-                               if ((MMPLAYER_IS_LIVE_STREAMING(player)) && (MMPLAYER_IS_RTSP_STREAMING(player))) {
+                       /* share addr or copy the list */
+                       player->adaptive_info.var_list =
+                               g_list_copy_deep((GList *)g_value_get_pointer(var_info), (GCopyFunc)__mmplayer_adaptive_var_info, NULL);
 
-                                       LOGD("player->last_position=%"G_GINT64_FORMAT" , player->streamer->buffering_percent=%d \n",
-                                                       GST_TIME_AS_SECONDS(player->last_position), player->streamer->buffering_percent);
+                       count = g_list_length(player->adaptive_info.var_list);
+                       if (count > 0) {
+                               VariantData *temp = NULL;
 
-                                       if ((GST_TIME_AS_SECONDS(player->last_position) <= 0) && (MMPLAYER_CURRENT_STATE(player) == MM_PLAYER_STATE_PAUSED)) {
-                                               msg_param.connection.buffering = player->streamer->buffering_percent;
-                                               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
-                                       } else {
-                                               LOGD("Not updating Buffering Message for Live RTSP case !!!\n");
-                                       }
-                               } else {
-                                       msg_param.connection.buffering = player->streamer->buffering_percent;
-                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
+                               /* print out for debug */
+                               LOGD("num of variant_info %d", count);
+                               for (idx = 0; idx < count; idx++) {
+                                       temp = g_list_nth_data(player->adaptive_info.var_list, idx);
+                                       if (temp)
+                                               LOGD("variant(%d) [b]%d [w]%d [h]%d ", idx, temp->bandwidth, temp->width, temp->height);
                                }
                        }
-                       MMPLAYER_CMD_UNLOCK(player);
                }
-               break;
+       }
 
-       case GST_MESSAGE_STATE_CHANGED:
-               {
-                       MMPlayerGstElement *mainbin;
-                       const GValue *voldstate, *vnewstate, *vpending;
-                       GstState oldstate = GST_STATE_NULL;
-                       GstState newstate = GST_STATE_NULL;
-                       GstState pending = GST_STATE_NULL;
-
-                       if (!(player->pipeline && player->pipeline->mainbin)) {
-                               LOGE("player pipeline handle is null");
-                               break;
-                       }
+       if (!strcmp(structure_name, "prepare-decode-buffers")) {
+               gint num_buffers = 0;
+               gint extra_num_buffers = 0;
+
+               if (gst_structure_get_int(gst_message_get_structure(msg), "num_buffers", &num_buffers)) {
+                       player->video_num_buffers = num_buffers;
+                       LOGD("video_num_buffers : %d", player->video_num_buffers);
+               }
 
-                       mainbin = player->pipeline->mainbin;
+               if (gst_structure_get_int(gst_message_get_structure(msg), "extra_num_buffers", &extra_num_buffers)) {
+                       player->video_extra_num_buffers = extra_num_buffers;
+                       LOGD("num_of_vout_extra num buffers : %d", extra_num_buffers);
+               }
+               return;
+       }
 
-                       /* we only handle messages from pipeline */
-                       if (msg->src != (GstObject *)mainbin[MMPLAYER_M_PIPE].gst)
-                               break;
+       if (!strcmp(structure_name, "Ext_Sub_Language_List"))
+               __mmplayer_track_update_text_attr_info(player, msg);
 
-                       /* get state info from msg */
-                       voldstate = gst_structure_get_value(gst_message_get_structure(msg), "old-state");
-                       vnewstate = gst_structure_get_value(gst_message_get_structure(msg), "new-state");
-                       vpending = gst_structure_get_value(gst_message_get_structure(msg), "pending-state");
+       /* custom message */
+       if (!strcmp(structure_name, "audio_codec_not_supported")) {
+               MMMessageParamType msg_param = {0,};
+               msg_param.code = MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
+               MMPLAYER_POST_MSG(player, MM_MESSAGE_ERROR, &msg_param);
+       }
 
-                       if (!voldstate || !vnewstate) {
-                               LOGE("received msg has wrong format.");
-                               break;
+       /* custom message for RTSP attribute :
+               RTSP case, buffer is not come from server before PLAYING state. However,we have to get attribute after PAUSE state chaged.
+               sdp which has contents info is received when rtsp connection is opened.
+               extract duration ,codec info , resolution from sdp and get it by GstMessage */
+       if (!strcmp(structure_name, "rtspsrc_properties")) {
+               gchar *audio_codec = NULL;
+               gchar *video_codec = NULL;
+               gchar *video_frame_size = NULL;
+
+               gst_structure_get(gst_message_get_structure(msg), "rtsp_duration", G_TYPE_UINT64, &player->duration, NULL);
+               LOGD("rtsp duration : %"G_GINT64_FORMAT" msec", GST_TIME_AS_MSECONDS(player->duration));
+               player->streaming_type = __mmplayer_get_stream_service_type(player);
+
+               gst_structure_get(gst_message_get_structure(msg), "rtsp_audio_codec", G_TYPE_STRING, &audio_codec, NULL);
+               LOGD("rtsp_audio_codec : %s", audio_codec);
+               if (audio_codec)
+                       mm_attrs_set_string_by_name(attrs, "content_audio_codec", audio_codec);
+
+               gst_structure_get(gst_message_get_structure(msg), "rtsp_video_codec", G_TYPE_STRING, &video_codec, NULL);
+               LOGD("rtsp_video_codec : %s", video_codec);
+               if (video_codec)
+                       mm_attrs_set_string_by_name(attrs, "content_video_codec", video_codec);
+
+               gst_structure_get(gst_message_get_structure(msg), "rtsp_video_frame_size", G_TYPE_STRING, &video_frame_size, NULL);
+               LOGD("rtsp_video_frame_size : %s", video_frame_size);
+               if (video_frame_size) {
+                       char *seperator = strchr(video_frame_size, '-');
+                       if (seperator) {
+                               char video_width[10] = {0,};
+                               int frame_size_len = strlen(video_frame_size);
+                               int separtor_len = strlen(seperator);
+
+                               strncpy(video_width, video_frame_size, (frame_size_len - separtor_len));
+                               mm_attrs_set_int_by_name(attrs, "content_video_width", atoi(video_width));
+
+                               seperator++;
+                               mm_attrs_set_int_by_name(attrs, "content_video_height", atoi(seperator));
                        }
+               }
 
-                       oldstate = (GstState)voldstate->data[0].v_int;
-                       newstate = (GstState)vnewstate->data[0].v_int;
-                       if (vpending)
-                               pending = (GstState)vpending->data[0].v_int;
+               if (mm_attrs_commit_all(attrs))
+                       LOGE("failed to commit.");
+       }
 
-                       LOGD("state changed [%s] : %s ---> %s     final : %s\n",
-                               GST_OBJECT_NAME(GST_MESSAGE_SRC(msg)),
-                               gst_element_state_get_name((GstState)oldstate),
-                               gst_element_state_get_name((GstState)newstate),
-                               gst_element_state_get_name((GstState)pending));
+       MMPLAYER_FLEAVE();
+       return;
+}
 
-                       if (newstate == GST_STATE_PLAYING) {
-                               if ((MMPLAYER_IS_RTSP_STREAMING(player)) && (player->pending_seek.is_pending)) {
+static void
+__mmplayer_gst_handle_async_done_message(mm_player_t *player, GstMessage *msg)
+{
+       MMPlayerGstElement *mainbin;
 
-                                       int retVal = MM_ERROR_NONE;
-                                       LOGD("trying to play from (%"G_GINT64_FORMAT") pending position\n", player->pending_seek.pos);
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_IF_FAIL(player && player->pipeline && player->pipeline->mainbin);
 
-                                       retVal = __mmplayer_gst_set_position(player, player->pending_seek.format, player->pending_seek.pos, TRUE);
+       mainbin = player->pipeline->mainbin;
 
-                                       if (MM_ERROR_NONE != retVal)
-                                               LOGE("failed to seek pending postion. just keep staying current position.\n");
+       LOGD("GST_MESSAGE_ASYNC_DONE : %s", GST_ELEMENT_NAME(GST_MESSAGE_SRC(msg)));
 
-                                       player->pending_seek.is_pending = FALSE;
-                               }
-                       }
+       /* we only handle messages from pipeline */
+       if (msg->src != (GstObject *)mainbin[MMPLAYER_M_PIPE].gst)
+               return;
 
-                       if (oldstate == newstate) {
-                               LOGD("pipeline reports state transition to old state");
-                               break;
+       if (player->seek_state == MMPLAYER_SEEK_IN_PROGRESS) {
+               if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PAUSED) {
+                       player->seek_state = MMPLAYER_SEEK_NONE;
+                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
+               } else if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PLAYING) {
+                       if (mainbin[MMPLAYER_M_AUTOPLUG].gst) {
+                               LOGD("sync %s state(%s) with parent state(%s)",
+                                       GST_ELEMENT_NAME(mainbin[MMPLAYER_M_AUTOPLUG].gst),
+                                       gst_element_state_get_name(GST_STATE(mainbin[MMPLAYER_M_AUTOPLUG].gst)),
+                                       gst_element_state_get_name(GST_STATE(mainbin[MMPLAYER_M_PIPE].gst)));
+
+                               /* In case of streaming, pause is required before finishing seeking by buffering.
+                                  After completing the seek(during buffering), the player and sink elems has paused state but others in playing state.
+                                  Because the buffering state is controlled according to the state transition for force resume,
+                                  the decodebin state should be paused as player state. */
+                               gst_element_sync_state_with_parent(mainbin[MMPLAYER_M_AUTOPLUG].gst);
                        }
 
-                       switch (newstate) {
-                       case GST_STATE_VOID_PENDING:
-                               break;
+                       if ((MMPLAYER_IS_HTTP_STREAMING(player)) &&
+                               (player->streamer) &&
+                               (player->streamer->streaming_buffer_type == BUFFER_TYPE_MUXED) &&
+                               !(player->streamer->buffering_state & MM_PLAYER_BUFFERING_IN_PROGRESS)) {
+                               GstQuery *query = NULL;
+                               gboolean busy = FALSE;
+                               gint percent = 0;
+
+                               if (player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer) {
+                                       query = gst_query_new_buffering(GST_FORMAT_PERCENT);
+                                       if (gst_element_query(player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer, query))
+                                               gst_query_parse_buffering_percent(query, &busy, &percent);
+                                       gst_query_unref(query);
+
+                                       LOGD("buffered percent(%s): %d",
+                                               GST_ELEMENT_NAME(player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer), percent);
+                               }
 
-                       case GST_STATE_NULL:
-                               break;
+                               if (percent >= 100)
+                                       __mmplayer_handle_buffering_playback(player);
+                       }
 
-                       case GST_STATE_READY:
-                               break;
+                       player->seek_state = MMPLAYER_SEEK_COMPLETED;
+               }
+       }
 
-                       case GST_STATE_PAUSED:
-                               {
-                                       gboolean prepare_async = FALSE;
+       MMPLAYER_FLEAVE();
+       return;
+}
 
-                                       if (!player->audio_cb_probe_id && player->set_mode.pcm_extraction && !player->audio_stream_render_cb_ex)
-                                               __mmplayer_configure_audio_callback(player);
+static void
+__mmplayer_gst_bus_msg_callback(GstMessage *msg, gpointer data)
+{
+       mm_player_t *player = (mm_player_t *)(data);
 
-                                       if (!player->sent_bos && oldstate == GST_STATE_READY) {
-                                               // managed prepare async case
-                                               mm_attrs_get_int_by_name(player->attrs, "profile_prepare_async", &prepare_async);
-                                               LOGD("checking prepare mode for async transition - %d", prepare_async);
-                                       }
+       MMPLAYER_RETURN_IF_FAIL(player);
+       MMPLAYER_RETURN_IF_FAIL(msg && GST_IS_MESSAGE(msg));
 
-                                       if (MMPLAYER_IS_STREAMING(player) || MMPLAYER_IS_MS_BUFF_SRC(player) || prepare_async) {
-                                               MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PAUSED);
+       switch (GST_MESSAGE_TYPE(msg)) {
+       case GST_MESSAGE_UNKNOWN:
+               LOGD("unknown message received");
+               break;
 
-                                               if (MMPLAYER_IS_STREAMING(player) && (player->streamer))
-                                                       __mm_player_streaming_set_content_bitrate(player->streamer,
-                                                               player->total_maximum_bitrate, player->total_bitrate);
+       case GST_MESSAGE_EOS:
+               LOGD("GST_MESSAGE_EOS received");
+               __mmplayer_gst_handle_eos_message(player, msg);
+               break;
 
-                                               if (player->pending_seek.is_pending) {
-                                                       LOGW("trying to do pending seek");
-                                                       MMPLAYER_CMD_LOCK(player);
-                                                       __mmplayer_gst_pending_seek(player);
-                                                       MMPLAYER_CMD_UNLOCK(player);
-                                               }
-                                       }
-                               }
-                               break;
+       case GST_MESSAGE_ERROR:
+               __mmplayer_gst_handle_error_message(player, msg);
+               break;
 
-                       case GST_STATE_PLAYING:
-                               {
-                                       if (MMPLAYER_IS_STREAMING(player)) {
-                                               // managed prepare async case when buffering is completed
-                                               // pending state should be reset otherwise, it's still playing even though it's resumed after bufferging.
-                                               if ((MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PLAYING) ||
-                                                       (MMPLAYER_PENDING_STATE(player) == MM_PLAYER_STATE_PLAYING))
-                                                       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
+       case GST_MESSAGE_WARNING:
+               {
+                       char *debug = NULL;
+                       GError *error = NULL;
 
-                                               if (MMPLAYER_IS_RTSP_STREAMING(player) && (MMPLAYER_IS_LIVE_STREAMING(player))) {
+                       gst_message_parse_warning(msg, &error, &debug);
 
-                                                       LOGD("Current Buffering Percent = %d", player->streamer->buffering_percent);
-                                                       if (player->streamer->buffering_percent < 100) {
+                       LOGD("warning : %s", error->message);
+                       LOGD("debug : %s", debug);
 
-                                                               MMMessageParamType msg_param = {0, };
-                                                               LOGW("Posting Buffering Completed Message to Application !!!");
+                       MMPLAYER_POST_MSG(player, MM_MESSAGE_WARNING, NULL);
 
-                                                               msg_param.connection.buffering = 100;
-                                                               MMPLAYER_POST_MSG(player, MM_MESSAGE_BUFFERING, &msg_param);
-                                                       }
-                                               }
-                                       }
+                       MMPLAYER_FREEIF(debug);
+                       g_error_free(error);
+               }
+               break;
 
-                                       if (player->gapless.stream_changed) {
-                                               __mmplayer_update_content_attrs(player, ATTR_ALL);
-                                               player->gapless.stream_changed = FALSE;
-                                       }
+       case GST_MESSAGE_TAG:
+               {
+                       LOGD("GST_MESSAGE_TAG");
+                       if (!__mmplayer_gst_extract_tag_from_msg(player, msg))
+                               LOGW("failed to extract tags from gstmessage");
+               }
+               break;
 
-                                       if (player->seek_state == MMPLAYER_SEEK_COMPLETED) {
-                                               player->seek_state = MMPLAYER_SEEK_NONE;
-                                               MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
-                                       }
-                               }
-                               break;
+       case GST_MESSAGE_BUFFERING:
+               __mmplayer_gst_handle_buffering_message(player, msg);
+               break;
 
-                       default:
-                               break;
-                       }
-               }
+       case GST_MESSAGE_STATE_CHANGED:
+               __mmplayer_gst_handle_state_message(player, msg);
                break;
 
        case GST_MESSAGE_CLOCK_LOST:
@@ -1867,7 +2003,7 @@ __mmplayer_gst_callback(GstMessage *msg, gpointer data)
                                gboolean need_new_clock = FALSE;
 
                                gst_message_parse_clock_lost(msg, &clock);
-                               LOGD("GST_MESSAGE_CLOCK_LOST : %s\n", (clock ? GST_OBJECT_NAME(clock) : "NULL"));
+                               LOGD("GST_MESSAGE_CLOCK_LOST : %s", (clock ? GST_OBJECT_NAME(clock) : "NULL"));
 
                                if (!player->videodec_linked)
                                        need_new_clock = TRUE;
@@ -1875,7 +2011,7 @@ __mmplayer_gst_callback(GstMessage *msg, gpointer data)
                                        need_new_clock = TRUE;
 
                                if (need_new_clock) {
-                                       LOGD("Provide clock is TRUE, do pause->resume\n");
+                                       LOGD("Provide clock is TRUE, do pause->resume");
                                        __mmplayer_gst_pause(player, FALSE);
                                        __mmplayer_gst_resume(player, FALSE);
                                }
@@ -1886,260 +2022,46 @@ __mmplayer_gst_callback(GstMessage *msg, gpointer data)
                        {
                                GstClock *clock = NULL;
                                gst_message_parse_new_clock(msg, &clock);
-                               LOGD("GST_MESSAGE_NEW_CLOCK : %s\n", (clock ? GST_OBJECT_NAME(clock) : "NULL"));
+                               LOGD("GST_MESSAGE_NEW_CLOCK : %s", (clock ? GST_OBJECT_NAME(clock) : "NULL"));
                        }
                        break;
 
        case GST_MESSAGE_ELEMENT:
-                       {
-                               const gchar *structure_name;
-                               gint count = 0, idx = 0;
-                               MMHandleType attrs = 0;
-
-                               attrs = MMPLAYER_GET_ATTRS(player);
-                               if (!attrs) {
-                                       LOGE("cannot get content attribute");
-                                       break;
-                               }
-
-                               if (gst_message_get_structure(msg) == NULL)
-                                       break;
-
-                               structure_name = gst_structure_get_name(gst_message_get_structure(msg));
-                               if (!structure_name)
-                                       break;
-
-                               LOGD("GST_MESSAGE_ELEMENT %s from %s", structure_name, GST_OBJECT_NAME(GST_MESSAGE_SRC(msg)));
-
-                               if (!strcmp(structure_name, "adaptive-streaming-variant")) {
-                                       const GValue *var_info = NULL;
-
-                                       var_info = gst_structure_get_value(gst_message_get_structure(msg), "video-variant-info");
-                                       if (var_info != NULL) {
-                                               if (player->adaptive_info.var_list)
-                                                       g_list_free_full(player->adaptive_info.var_list, g_free);
-
-                                               /* share addr or copy the list */
-                                               player->adaptive_info.var_list =
-                                                       g_list_copy_deep((GList *)g_value_get_pointer(var_info), (GCopyFunc)__mmplayer_adaptive_var_info, NULL);
-
-                                               count = g_list_length(player->adaptive_info.var_list);
-                                               if (count > 0) {
-                                                       VariantData *temp = NULL;
-
-                                                       /* print out for debug */
-                                                       LOGD("num of variant_info %d", count);
-                                                       for (idx = 0; idx < count; idx++) {
-                                                               temp = g_list_nth_data(player->adaptive_info.var_list, idx);
-                                                               if (temp)
-                                                                       LOGD("variant(%d) [b]%d [w]%d [h]%d ", idx, temp->bandwidth, temp->width, temp->height);
-                                                       }
-                                               }
-                                       }
-                               }
-
-                               if (!strcmp(structure_name, "prepare-decode-buffers")) {
-                                       gint num_buffers = 0;
-                                       gint extra_num_buffers = 0;
-
-                                       if (gst_structure_get_int(gst_message_get_structure(msg), "num_buffers", &num_buffers)) {
-                                               player->video_num_buffers = num_buffers;
-                                               LOGD("video_num_buffers : %d", player->video_num_buffers);
-                                       }
-
-                                       if (gst_structure_get_int(gst_message_get_structure(msg), "extra_num_buffers", &extra_num_buffers)) {
-                                               player->video_extra_num_buffers = extra_num_buffers;
-                                               LOGD("num_of_vout_extra num buffers : %d", extra_num_buffers);
-                                       }
-                                       break;
-                               }
-
-                               if (!strcmp(structure_name, "Language_list")) {
-                                       const GValue *lang_list = NULL;
-                                       lang_list = gst_structure_get_value(gst_message_get_structure(msg), "lang_list");
-                                       if (lang_list != NULL) {
-                                               count = g_list_length((GList *)g_value_get_pointer(lang_list));
-                                               if (count > 1)
-                                                       LOGD("Total audio tracks(from parser) = %d \n", count);
-                                       }
-                               }
-
-                               if (!strcmp(structure_name, "Ext_Sub_Language_List")) {
-                                       const GValue *lang_list = NULL;
-                                       MMPlayerLangStruct *temp = NULL;
-
-                                       lang_list = gst_structure_get_value(gst_message_get_structure(msg), "lang_list");
-                                       if (lang_list != NULL) {
-                                               count = g_list_length((GList *)g_value_get_pointer(lang_list));
-                                               if (count) {
-                                                       MMPLAYER_SUBTITLE_INFO_LOCK(player);
-                                                       player->subtitle_language_list = (GList *)g_value_get_pointer(lang_list);
-                                                       mm_attrs_set_int_by_name(attrs, "content_text_track_num", (gint)count);
-                                                       if (mmf_attrs_commit(attrs))
-                                                               LOGE("failed to commit.\n");
-                                                       LOGD("Total subtitle tracks = %d \n", count);
-
-                                                       while (count) {
-                                                               temp = g_list_nth_data(player->subtitle_language_list, count - 1);
-                                                               if (temp)
-                                                                       LOGD("value of lang_key is %s and lang_code is %s",
-                                                                                               temp->language_key, temp->language_code);
-                                                               count--;
-                                                       }
-                                                       MMPLAYER_SUBTITLE_INFO_SIGNAL(player);
-                                                       MMPLAYER_SUBTITLE_INFO_UNLOCK(player);
-                                               }
-                                       }
-                               }
-
-                               /* custom message */
-                               if (!strcmp(structure_name, "audio_codec_not_supported")) {
-                                       MMMessageParamType msg_param = {0,};
-                                       msg_param.code = MM_ERROR_PLAYER_AUDIO_CODEC_NOT_FOUND;
-                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_ERROR, &msg_param);
-                               }
-
-                               /* custom message for RTSP attribute :
-                                   RTSP case, buffer is not come from server before PLAYING state. However,we have to get attribute after PAUSE state chaged.
-                                   sdp which has contents info is received when rtsp connection is opened.
-                                   extract duration ,codec info , resolution from sdp and get it by GstMessage */
-                               if (!strcmp(structure_name, "rtspsrc_properties")) {
-
-                                       gchar *audio_codec = NULL;
-                                       gchar *video_codec = NULL;
-                                       gchar *video_frame_size = NULL;
-
-                                       gst_structure_get(gst_message_get_structure(msg), "rtsp_duration", G_TYPE_UINT64, &player->duration, NULL);
-                                       LOGD("rtsp duration : %"G_GINT64_FORMAT" msec", GST_TIME_AS_MSECONDS(player->duration));
-                                       player->streaming_type = __mmplayer_get_stream_service_type(player);
-
-                                       gst_structure_get(gst_message_get_structure(msg), "rtsp_audio_codec", G_TYPE_STRING, &audio_codec, NULL);
-                                       LOGD("rtsp_audio_codec : %s", audio_codec);
-                                       if (audio_codec)
-                                               mm_attrs_set_string_by_name(player->attrs, "content_audio_codec", audio_codec);
-
-                                       gst_structure_get(gst_message_get_structure(msg), "rtsp_video_codec", G_TYPE_STRING, &video_codec, NULL);
-                                       LOGD("rtsp_video_codec : %s", video_codec);
-                                       if (video_codec)
-                                               mm_attrs_set_string_by_name(player->attrs, "content_video_codec", video_codec);
-
-                                       gst_structure_get(gst_message_get_structure(msg), "rtsp_video_frame_size", G_TYPE_STRING, &video_frame_size, NULL);
-                                       LOGD("rtsp_video_frame_size : %s", video_frame_size);
-                                       if (video_frame_size) {
-
-                                               char *seperator = strchr(video_frame_size, '-');
-                                               if (seperator) {
-
-                                                       char video_width[10] = {0,};
-                                                       int frame_size_len = strlen(video_frame_size);
-                                                       int separtor_len = strlen(seperator);
-
-                                                       strncpy(video_width, video_frame_size, (frame_size_len - separtor_len));
-                                                       mm_attrs_set_int_by_name(attrs, "content_video_width", atoi(video_width));
-
-                                                       seperator++;
-                                                       mm_attrs_set_int_by_name(attrs, "content_video_height", atoi(seperator));
-                                               }
-                                       }
-
-                                       if (mmf_attrs_commit(attrs))
-                                               LOGE("failed to commit.\n");
-                               }
-                       }
+               __mmplayer_gst_handle_element_message(player, msg);
                        break;
 
        case GST_MESSAGE_DURATION_CHANGED:
                {
-                       LOGD("GST_MESSAGE_DURATION_CHANGED\n");
+                       LOGD("GST_MESSAGE_DURATION_CHANGED");
                        if (!__mmplayer_gst_handle_duration(player, msg))
                                LOGW("failed to update duration");
                }
-
                break;
 
        case GST_MESSAGE_ASYNC_START:
-                       LOGD("GST_MESSAGE_ASYNC_START : %s\n", GST_ELEMENT_NAME(GST_MESSAGE_SRC(msg)));
+                       LOGD("GST_MESSAGE_ASYNC_START : %s", GST_ELEMENT_NAME(GST_MESSAGE_SRC(msg)));
                break;
 
        case GST_MESSAGE_ASYNC_DONE:
-               {
-                       MMPlayerGstElement *mainbin;
-
-                       if (!(player->pipeline && player->pipeline->mainbin)) {
-                               LOGE("player pipeline handle is null");
-                               break;
-                       }
-
-                       mainbin = player->pipeline->mainbin;
-
-                       LOGD("GST_MESSAGE_ASYNC_DONE : %s\n", GST_ELEMENT_NAME(GST_MESSAGE_SRC(msg)));
-
-                       /* we only handle messages from pipeline */
-                       if (msg->src != (GstObject *)mainbin[MMPLAYER_M_PIPE].gst)
-                               break;
-
-                       if (player->seek_state == MMPLAYER_SEEK_IN_PROGRESS) {
-                               if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PAUSED) {
-                                       player->seek_state = MMPLAYER_SEEK_NONE;
-                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
-                               } else if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PLAYING) {
-                                       if (mainbin[MMPLAYER_M_AUTOPLUG].gst) {
-                                               LOGD("sync %s state(%s) with parent state(%s)",
-                                                       GST_ELEMENT_NAME(mainbin[MMPLAYER_M_AUTOPLUG].gst),
-                                                       gst_element_state_get_name(GST_STATE(mainbin[MMPLAYER_M_AUTOPLUG].gst)),
-                                                       gst_element_state_get_name(GST_STATE(mainbin[MMPLAYER_M_PIPE].gst)));
-
-                                               /* In case of streaming, pause is required before finishing seeking by buffering.
-                                                  After completing the seek(during buffering), the player and sink elems has paused state but others in playing state.
-                                                  Because the buffering state is controlled according to the state transition for force resume,
-                                                  the decodebin state should be paused as player state. */
-                                               gst_element_sync_state_with_parent(mainbin[MMPLAYER_M_AUTOPLUG].gst);
-                                       }
-
-                                       if ((MMPLAYER_IS_HTTP_STREAMING(player)) &&
-                                               (player->streamer) &&
-                                               (player->streamer->streaming_buffer_type == BUFFER_TYPE_MUXED) &&
-                                               !(player->streamer->buffering_state & MM_PLAYER_BUFFERING_IN_PROGRESS)) {
-                                               GstQuery *query = NULL;
-                                               gboolean busy = FALSE;
-                                               gint percent = 0;
-
-                                               if (player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer) {
-                                                       query = gst_query_new_buffering(GST_FORMAT_PERCENT);
-                                                       if (gst_element_query(player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer, query))
-                                                               gst_query_parse_buffering_percent(query, &busy, &percent);
-                                                       gst_query_unref(query);
-
-                                                       LOGD("buffered percent(%s): %d\n",
-                                                               GST_ELEMENT_NAME(player->streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer), percent);
-                                               }
-
-                                               if (percent >= 100)
-                                                       __mmplayer_handle_buffering_message(player);
-                                       }
-
-                                       player->seek_state = MMPLAYER_SEEK_COMPLETED;
-                               }
-                       }
-               }
+               __mmplayer_gst_handle_async_done_message(player, msg);
                break;
 
        #if 0 /* delete unnecessary logs */
-       case GST_MESSAGE_REQUEST_STATE:         LOGD("GST_MESSAGE_REQUEST_STATE\n"); break;
-       case GST_MESSAGE_STEP_START:            LOGD("GST_MESSAGE_STEP_START\n"); break;
-       case GST_MESSAGE_QOS:                           LOGD("GST_MESSAGE_QOS\n"); break;
-       case GST_MESSAGE_PROGRESS:                      LOGD("GST_MESSAGE_PROGRESS\n"); break;
-       case GST_MESSAGE_ANY:                           LOGD("GST_MESSAGE_ANY\n"); break;
-       case GST_MESSAGE_INFO:                          LOGD("GST_MESSAGE_STATE_DIRTY\n"); break;
-       case GST_MESSAGE_STATE_DIRTY:           LOGD("GST_MESSAGE_STATE_DIRTY\n"); break;
-       case GST_MESSAGE_STEP_DONE:                     LOGD("GST_MESSAGE_STEP_DONE\n"); break;
-       case GST_MESSAGE_CLOCK_PROVIDE:         LOGD("GST_MESSAGE_CLOCK_PROVIDE\n"); break;
-       case GST_MESSAGE_STRUCTURE_CHANGE:      LOGD("GST_MESSAGE_STRUCTURE_CHANGE\n"); break;
-       case GST_MESSAGE_STREAM_STATUS:         LOGD("GST_MESSAGE_STREAM_STATUS\n"); break;
-       case GST_MESSAGE_APPLICATION:           LOGD("GST_MESSAGE_APPLICATION\n"); break;
-       case GST_MESSAGE_SEGMENT_START:         LOGD("GST_MESSAGE_SEGMENT_START\n"); break;
-       case GST_MESSAGE_SEGMENT_DONE:          LOGD("GST_MESSAGE_SEGMENT_DONE\n"); break;
-       case GST_MESSAGE_LATENCY:                               LOGD("GST_MESSAGE_LATENCY\n"); break;
+       case GST_MESSAGE_REQUEST_STATE:         LOGD("GST_MESSAGE_REQUEST_STATE"); break;
+       case GST_MESSAGE_STEP_START:            LOGD("GST_MESSAGE_STEP_START"); break;
+       case GST_MESSAGE_QOS:                           LOGD("GST_MESSAGE_QOS"); break;
+       case GST_MESSAGE_PROGRESS:                      LOGD("GST_MESSAGE_PROGRESS"); break;
+       case GST_MESSAGE_ANY:                           LOGD("GST_MESSAGE_ANY"); break;
+       case GST_MESSAGE_INFO:                          LOGD("GST_MESSAGE_STATE_DIRTY"); break;
+       case GST_MESSAGE_STATE_DIRTY:           LOGD("GST_MESSAGE_STATE_DIRTY"); break;
+       case GST_MESSAGE_STEP_DONE:                     LOGD("GST_MESSAGE_STEP_DONE"); break;
+       case GST_MESSAGE_CLOCK_PROVIDE:         LOGD("GST_MESSAGE_CLOCK_PROVIDE"); break;
+       case GST_MESSAGE_STRUCTURE_CHANGE:      LOGD("GST_MESSAGE_STRUCTURE_CHANGE"); break;
+       case GST_MESSAGE_STREAM_STATUS:         LOGD("GST_MESSAGE_STREAM_STATUS"); break;
+       case GST_MESSAGE_APPLICATION:           LOGD("GST_MESSAGE_APPLICATION"); break;
+       case GST_MESSAGE_SEGMENT_START:         LOGD("GST_MESSAGE_SEGMENT_START"); break;
+       case GST_MESSAGE_SEGMENT_DONE:          LOGD("GST_MESSAGE_SEGMENT_DONE"); break;
+       case GST_MESSAGE_LATENCY:                       LOGD("GST_MESSAGE_LATENCY"); break;
        #endif
 
        default:
@@ -2150,8 +2072,8 @@ __mmplayer_gst_callback(GstMessage *msg, gpointer data)
        return;
 }
 
-GstBusSyncReply
-__mmplayer_bus_sync_callback(GstBus * bus, GstMessage * message, gpointer data)
+static GstBusSyncReply
+__mmplayer_gst_bus_sync_callback(GstBus *bus, GstMessage *message, gpointer data)
 {
        mm_player_t *player = (mm_player_t *)data;
        GstBusSyncReply reply = GST_BUS_DROP;
@@ -2167,14 +2089,6 @@ __mmplayer_bus_sync_callback(GstBus * bus, GstMessage * message, gpointer data)
        }
 
        switch (GST_MESSAGE_TYPE(message)) {
-       case GST_MESSAGE_STATE_CHANGED:
-               /* post directly for fast launch */
-               if (player->sync_handler) {
-                       __mmplayer_gst_callback(message, player);
-                       reply = GST_BUS_DROP;
-               } else
-                       reply = GST_BUS_PASS;
-               break;
        case GST_MESSAGE_TAG:
                __mmplayer_gst_extract_tag_from_msg(player, message);
 
@@ -2184,11 +2098,11 @@ __mmplayer_bus_sync_callback(GstBus * bus, GstMessage * message, gpointer data)
 
                        gst_message_parse_tag(message, &tags);
                        if (tags) {
-                               LOGE("TAGS received from element \"%s\".\n",
+                               LOGE("TAGS received from element \"%s\".",
                                GST_STR_NULL(GST_ELEMENT_NAME(GST_MESSAGE_SRC(message))));
 
                                gst_tag_list_foreach(tags, print_tag, NULL);
-                               gst_tag_list_free(tags);
+                               gst_tag_list_unref(tags);
                                tags = NULL;
                        }
                        break;
@@ -2208,13 +2122,878 @@ __mmplayer_bus_sync_callback(GstBus * bus, GstMessage * message, gpointer data)
                break;
        }
 
-       if (reply == GST_BUS_DROP)
-               gst_message_unref(message);
+       if (reply == GST_BUS_DROP)
+               gst_message_unref(message);
+
+       return reply;
+}
+
+static void
+__mmplayer_gst_appsrc_feed_data_mem(GstElement *element, guint size, gpointer user_data)
+{
+       GstElement *appsrc = element;
+       MMPlayerInputBuffer *buf = (MMPlayerInputBuffer *)user_data;
+       GstBuffer *buffer = NULL;
+       GstFlowReturn ret = GST_FLOW_OK;
+       gint len = size;
+
+       MMPLAYER_RETURN_IF_FAIL(element);
+       MMPLAYER_RETURN_IF_FAIL(buf);
+
+       buffer = gst_buffer_new();
+
+       if (buf->offset < 0 || buf->len < 0) {
+               LOGE("invalid buf info %d %d", buf->offset, buf->len);
+               return;
+       }
+
+       if (buf->offset >= buf->len) {
+               LOGD("call eos appsrc");
+               g_signal_emit_by_name(appsrc, "end-of-stream", &ret);
+               return;
+       }
+
+       if (buf->len - buf->offset < size)
+               len = buf->len - buf->offset;
+
+       gst_buffer_insert_memory(buffer, -1, gst_memory_new_wrapped(0, (guint8 *)(buf->buf + buf->offset), len, 0, len, NULL, NULL));
+       GST_BUFFER_OFFSET(buffer) = (guint64)buf->offset;
+       GST_BUFFER_OFFSET_END(buffer) = (guint64)(buf->offset + len);
+
+       //LOGD("feed buffer %p, offset %u-%u length %u", buffer, buf->offset, (buf->offset+len), len);
+       g_signal_emit_by_name(appsrc, "push-buffer", buffer, &ret);
+
+       buf->offset += len;
+}
+
+static gboolean
+__mmplayer_gst_appsrc_seek_data_mem(GstElement *element, guint64 size, gpointer user_data)
+{
+       MMPlayerInputBuffer *buf = (MMPlayerInputBuffer *)user_data;
+
+       MMPLAYER_RETURN_VAL_IF_FAIL(buf, FALSE);
+
+       buf->offset  = (int)size;
+
+       return TRUE;
+}
+
+void
+__mmplayer_gst_appsrc_feed_data(GstElement *element, guint size, gpointer user_data)
+{
+       mm_player_t *player  = (mm_player_t *)user_data;
+       MMPlayerStreamType type = MM_PLAYER_STREAM_TYPE_DEFAULT;
+       guint64 current_level_bytes = 0;
+
+       MMPLAYER_RETURN_IF_FAIL(player);
+
+       if (g_strrstr(GST_ELEMENT_NAME(element), "audio")) {
+               type = MM_PLAYER_STREAM_TYPE_AUDIO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "video")) {
+               type = MM_PLAYER_STREAM_TYPE_VIDEO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "subtitle")) {
+               type = MM_PLAYER_STREAM_TYPE_TEXT;
+       } else {
+               LOGE("can not enter here");
+               return;
+       }
+
+       g_object_get(G_OBJECT(element), "current-level-bytes", &current_level_bytes, NULL);
+
+       LOGI("type: %d, level: %"G_GUINT64_FORMAT, type, current_level_bytes);
+
+       MMPLAYER_MEDIA_STREAM_CALLBACK_LOCK(player);
+       if (player->media_stream_buffer_status_cb[type])
+               player->media_stream_buffer_status_cb[type](type, MM_PLAYER_MEDIA_STREAM_BUFFER_UNDERRUN, current_level_bytes, player->buffer_cb_user_param[type]);
+       MMPLAYER_MEDIA_STREAM_CALLBACK_UNLOCK(player);
+}
+
+void
+__mmplayer_gst_appsrc_enough_data(GstElement *element, gpointer user_data)
+{
+       mm_player_t *player  = (mm_player_t *)user_data;
+       MMPlayerStreamType type = MM_PLAYER_STREAM_TYPE_DEFAULT;
+       guint64 current_level_bytes = 0;
+
+       MMPLAYER_RETURN_IF_FAIL(player);
+
+       if (g_strrstr(GST_ELEMENT_NAME(element), "audio")) {
+               type = MM_PLAYER_STREAM_TYPE_AUDIO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "video")) {
+               type = MM_PLAYER_STREAM_TYPE_VIDEO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "subtitle")) {
+               type = MM_PLAYER_STREAM_TYPE_TEXT;
+       } else {
+               LOGE("can not enter here");
+               return;
+       }
+
+       LOGI("type: %d, buffer is full", type);
+
+       g_object_get(G_OBJECT(element), "current-level-bytes", &current_level_bytes, NULL);
+
+       MMPLAYER_MEDIA_STREAM_CALLBACK_LOCK(player);
+
+       if (player->media_stream_buffer_status_cb[type])
+               player->media_stream_buffer_status_cb[type](type, MM_PLAYER_MEDIA_STREAM_BUFFER_OVERFLOW, current_level_bytes, player->buffer_cb_user_param[type]);
+
+       MMPLAYER_MEDIA_STREAM_CALLBACK_UNLOCK(player);
+}
+
+gboolean
+__mmplayer_gst_appsrc_seek_data(GstElement *element, guint64 position, gpointer user_data)
+{
+       mm_player_t *player  = (mm_player_t *)user_data;
+       MMPlayerStreamType type = MM_PLAYER_STREAM_TYPE_DEFAULT;
+
+       MMPLAYER_RETURN_VAL_IF_FAIL(player, FALSE);
+
+       if (g_strrstr(GST_ELEMENT_NAME(element), "audio")) {
+               type = MM_PLAYER_STREAM_TYPE_AUDIO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "video")) {
+               type = MM_PLAYER_STREAM_TYPE_VIDEO;
+       } else if (g_strrstr(GST_ELEMENT_NAME(element), "subtitle")) {
+               type = MM_PLAYER_STREAM_TYPE_TEXT;
+       } else {
+               LOGE("can not enter here");
+               return TRUE;
+       }
+
+       LOGD("type: %d, pos: %"G_GUINT64_FORMAT, type, position);
+       MMPLAYER_MEDIA_STREAM_CALLBACK_LOCK(player);
+
+       if (player->media_stream_seek_data_cb[type])
+               player->media_stream_seek_data_cb[type](type, position, player->seek_cb_user_param[type]);
+       MMPLAYER_MEDIA_STREAM_CALLBACK_UNLOCK(player);
+
+       return TRUE;
+}
+
+static gboolean
+__mmplayer_gst_create_es_decoder(mm_player_t *player, MMPlayerStreamType type, GstPad *srcpad)
+{
+#define MAX_LEN_NAME 20
+
+       gboolean ret = FALSE;
+       GstPad *sinkpad = NULL;
+       gchar *prefix = NULL;
+       gchar dec_name[MAX_LEN_NAME] = {0, };
+       enum MainElementID elem_id = MMPLAYER_M_NUM;
+
+       MMPlayerGstElement *mainbin = NULL;
+       GstElement *decodebin = NULL;
+       GstCaps *dec_caps = NULL;
+
+       MMPLAYER_FENTER();
+
+       MMPLAYER_RETURN_VAL_IF_FAIL(player &&
+                                               player->pipeline &&
+                                               player->pipeline->mainbin, FALSE);
+       MMPLAYER_RETURN_VAL_IF_FAIL(srcpad, FALSE);
+
+       mainbin = player->pipeline->mainbin;
+       switch (type) {
+       case MM_PLAYER_STREAM_TYPE_AUDIO:
+               prefix = "audio";
+               elem_id = MMPLAYER_M_AUTOPLUG_A_DEC;
+       break;
+       case MM_PLAYER_STREAM_TYPE_VIDEO:
+               prefix = "video";
+               elem_id = MMPLAYER_M_AUTOPLUG_V_DEC;
+       break;
+       default:
+               LOGE("invalid type %d", type);
+               return FALSE;
+       }
+
+       if (mainbin[elem_id].gst) {
+               LOGE("elem(%d) is already created", elem_id);
+               return FALSE;
+       }
+
+       snprintf(dec_name, sizeof(dec_name), "%s_decodebin", prefix);
+
+       /* create decodebin */
+       decodebin = gst_element_factory_make("decodebin", dec_name);
+       if (!decodebin) {
+               LOGE("failed to create %s", dec_name);
+               return FALSE;
+       }
+
+       mainbin[elem_id].id = elem_id;
+       mainbin[elem_id].gst = decodebin;
+
+       /* raw pad handling signal */
+       __mmplayer_add_signal_connection(player, G_OBJECT(decodebin), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "pad-added",
+                                                                               G_CALLBACK(__mmplayer_gst_decode_pad_added), (gpointer)player);
+
+       /* This signal is emitted whenever decodebin finds a new stream. It is emitted
+       before looking for any elements that can handle that stream.*/
+       __mmplayer_add_signal_connection(player, G_OBJECT(decodebin), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "autoplug-select",
+                                                                               G_CALLBACK(__mmplayer_gst_decode_autoplug_select), (gpointer)player);
+
+       /* This signal is emitted when a element is added to the bin.*/
+       __mmplayer_add_signal_connection(player, G_OBJECT(decodebin), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "element-added",
+                                                                               G_CALLBACK(__mmplayer_gst_element_added), (gpointer)player);
+
+       if (!gst_bin_add(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), decodebin)) {
+               LOGE("failed to add new decodebin");
+               return FALSE;
+       }
+
+       dec_caps = gst_pad_query_caps(srcpad, NULL);
+       if (dec_caps) {
+               //LOGD("got pad %s:%s , dec_caps %" GST_PTR_FORMAT, GST_DEBUG_PAD_NAME(srcpad), dec_caps);
+               g_object_set(G_OBJECT(decodebin), "sink-caps", dec_caps, NULL);
+               gst_caps_unref(dec_caps);
+       }
+
+       sinkpad = gst_element_get_static_pad(decodebin, "sink");
+
+       if (!sinkpad || gst_pad_link(srcpad, sinkpad) != GST_PAD_LINK_OK) {
+               LOGE("failed to link [%s:%s] to decoder", GST_DEBUG_PAD_NAME(srcpad));
+               goto ERROR;
+       }
+       gst_object_unref(GST_OBJECT(sinkpad));
+
+       gst_element_sync_state_with_parent(decodebin);
+       MMPLAYER_FLEAVE();
+       return TRUE;
+
+ERROR:
+       if (sinkpad)
+               gst_object_unref(GST_OBJECT(sinkpad));
+
+       if (mainbin[elem_id].gst) {
+               gst_element_set_state(mainbin[elem_id].gst, GST_STATE_NULL);
+               gst_bin_remove(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[elem_id].gst);
+               gst_object_unref(mainbin[elem_id].gst);
+               mainbin[elem_id].gst = NULL;
+       }
+
+       MMPLAYER_FLEAVE();
+       return ret;
+}
+
+static gboolean
+__mmplayer_gst_create_es_path(mm_player_t *player, MMPlayerStreamType type, GstCaps *caps)
+{
+#define MAX_LEN_NAME 20
+       MMPlayerGstElement *mainbin = NULL;
+       gchar *prefix = NULL;
+       enum MainElementID src_id = MMPLAYER_M_NUM, queue_id = MMPLAYER_M_NUM;
+
+       gchar src_name[MAX_LEN_NAME] = {0, }, queue_name[MAX_LEN_NAME] = {0, };
+       GstElement *src = NULL, *queue = NULL;
+       GstPad *srcpad = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline &&
+                               player->pipeline->mainbin, FALSE);
+
+       mainbin = player->pipeline->mainbin;
+
+       LOGD("type(%d) path is creating", type);
+       switch (type) {
+       case MM_PLAYER_STREAM_TYPE_AUDIO:
+               prefix = "audio";
+               if (mainbin[MMPLAYER_M_SRC].gst)
+                       src_id = MMPLAYER_M_2ND_SRC;
+               else
+                       src_id = MMPLAYER_M_SRC;
+               queue_id = MMPLAYER_M_A_BUFFER;
+       break;
+       case MM_PLAYER_STREAM_TYPE_VIDEO:
+               prefix = "video";
+               src_id = MMPLAYER_M_SRC;
+               queue_id = MMPLAYER_M_V_BUFFER;
+       break;
+       case MM_PLAYER_STREAM_TYPE_TEXT:
+               prefix = "subtitle";
+               src_id = MMPLAYER_M_SUBSRC;
+               queue_id = MMPLAYER_M_S_BUFFER;
+       break;
+       default:
+               LOGE("invalid type %d", type);
+               return FALSE;
+       }
+
+       snprintf(src_name, sizeof(src_name), "%s_appsrc", prefix);
+       snprintf(queue_name, sizeof(queue_name), "%s_queue", prefix);
+
+       /* create source */
+       src = gst_element_factory_make("appsrc", src_name);
+       if (!src) {
+               LOGF("failed to create %s", src_name);
+               goto ERROR;
+       }
+
+       mainbin[src_id].id = src_id;
+       mainbin[src_id].gst = src;
+
+       g_object_set(G_OBJECT(src), "format", GST_FORMAT_TIME,
+                                                               "caps", caps, NULL);
+
+       /* size of many video frames are larger than default blocksize as 4096 */
+       if (type == MM_PLAYER_STREAM_TYPE_VIDEO)
+               g_object_set(G_OBJECT(src), "blocksize", (guint)1048576, NULL);
+
+       if (player->media_stream_buffer_max_size[type] > 0)
+               g_object_set(G_OBJECT(src), "max-bytes", player->media_stream_buffer_max_size[type], NULL);
+
+       if (player->media_stream_buffer_min_percent[type] > 0)
+               g_object_set(G_OBJECT(src), "min-percent", player->media_stream_buffer_min_percent[type], NULL);
+
+       /*Fix Seek External Demuxer: set audio and video appsrc as seekable */
+       gst_app_src_set_stream_type((GstAppSrc*)G_OBJECT(src), GST_APP_STREAM_TYPE_SEEKABLE);
+
+       __mmplayer_add_signal_connection(player, G_OBJECT(src), MM_PLAYER_SIGNAL_TYPE_OTHERS, "seek-data",
+                                                                                       G_CALLBACK(__mmplayer_gst_appsrc_seek_data), (gpointer)player);
+       __mmplayer_add_signal_connection(player, G_OBJECT(src), MM_PLAYER_SIGNAL_TYPE_OTHERS, "need-data",
+                                                                                       G_CALLBACK(__mmplayer_gst_appsrc_feed_data), (gpointer)player);
+       __mmplayer_add_signal_connection(player, G_OBJECT(src), MM_PLAYER_SIGNAL_TYPE_OTHERS, "enough-data",
+                                                                                       G_CALLBACK(__mmplayer_gst_appsrc_enough_data), (gpointer)player);
+
+       /* create queue */
+       queue = gst_element_factory_make("queue2", queue_name);
+       if (!queue) {
+               LOGE("failed to create %s", queue_name);
+               goto ERROR;
+       }
+       g_object_set(G_OBJECT(queue), "max-size-buffers", 2, NULL);
+
+       mainbin[queue_id].id = queue_id;
+       mainbin[queue_id].gst = queue;
+
+       if (!gst_bin_add(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[src_id].gst)) {
+               LOGE("failed to add src");
+               goto ERROR;
+       }
+
+       if (!gst_bin_add(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[queue_id].gst)) {
+               LOGE("failed to add queue");
+               goto ERROR;
+       }
+
+       if (!gst_element_link(mainbin[src_id].gst, mainbin[queue_id].gst)) {
+               LOGE("failed to link src and queue");
+               goto ERROR;
+       }
+
+       /* create decoder */
+       srcpad = gst_element_get_static_pad(mainbin[queue_id].gst, "src");
+       if (!srcpad) {
+               LOGE("failed to get srcpad of queue");
+               goto ERROR;
+       }
+
+       if (type == MM_PLAYER_STREAM_TYPE_TEXT) {
+               __mmplayer_gst_create_decoder(player, gst_element_get_static_pad(mainbin[queue_id].gst, "src"), caps);
+       } else {
+               if (!__mmplayer_gst_create_es_decoder(player, type, srcpad)) {
+                       LOGE("failed to create decoder");
+                       gst_object_unref(GST_OBJECT(srcpad));
+                       goto ERROR;
+               }
+       }
+       gst_object_unref(GST_OBJECT(srcpad));
+       return TRUE;
+
+ERROR:
+       if (mainbin[src_id].gst) {
+               gst_element_set_state(mainbin[src_id].gst, GST_STATE_NULL);
+               gst_bin_remove(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[src_id].gst);
+               gst_object_unref(mainbin[src_id].gst);
+               mainbin[src_id].gst = NULL;
+       }
+
+       if (mainbin[queue_id].gst) {
+               gst_element_set_state(mainbin[queue_id].gst, GST_STATE_NULL);
+               gst_bin_remove(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[queue_id].gst);
+               gst_object_unref(mainbin[queue_id].gst);
+               mainbin[queue_id].gst = NULL;
+       }
+
+       return FALSE;
+}
+
+static void
+__mmplayer_gst_rtp_dynamic_pad(GstElement *element, GstPad *pad, gpointer data)
+{
+       GstPad *sinkpad = NULL;
+       GstCaps *caps = NULL;
+       GstElement *new_element = NULL;
+       GstStructure *str = NULL;
+       const gchar *name = NULL;
+
+       mm_player_t *player = (mm_player_t *)data;
+
+       MMPLAYER_FENTER();
+
+       MMPLAYER_RETURN_IF_FAIL(element && pad);
+       MMPLAYER_RETURN_IF_FAIL(player &&
+                                       player->pipeline &&
+                                       player->pipeline->mainbin);
+
+       /* payload type is recognizable. increase num_dynamic and wait for sinkbin creation.
+        * num_dynamic_pad will decreased after creating a sinkbin.
+        */
+       player->num_dynamic_pad++;
+       LOGD("stream count inc : %d", player->num_dynamic_pad);
+
+       caps = gst_pad_query_caps(pad, NULL);
+       MMPLAYER_CHECK_NULL(caps);
+
+       str = gst_caps_get_structure (caps, 0);
+       name = gst_structure_get_string(str, "media");
+       if (!name) {
+               LOGE("cannot get mimetype from structure.");
+               goto ERROR;
+       }
+
+       if (strstr(name, "video")) {
+               gint stype = 0;
+               mm_attrs_get_int_by_name(player->attrs, "display_surface_type", &stype);
+
+               if ((stype == MM_DISPLAY_SURFACE_NULL) && (!player->set_mode.media_packet_video_stream)) {
+                       if (player->v_stream_caps) {
+                               gst_caps_unref(player->v_stream_caps);
+                               player->v_stream_caps = NULL;
+                       }
+
+                       new_element = gst_element_factory_make("fakesink", NULL);
+                       player->num_dynamic_pad--;
+                       goto NEW_ELEMENT;
+               }
+       }
+
+       if (!__mmplayer_gst_create_decoder(player, pad, caps)) {
+               LOGE("failed to autoplug for caps");
+               goto ERROR;
+       }
+
+       gst_caps_unref(caps);
+       caps = NULL;
+
+NEW_ELEMENT:
+
+       /* excute new_element if created*/
+       if (new_element) {
+               LOGD("adding new element to pipeline");
+
+               /* set state to READY before add to bin */
+               MMPLAYER_ELEMENT_SET_STATE(new_element, GST_STATE_READY);
+
+               /* add new element to the pipeline */
+               if (FALSE == gst_bin_add(GST_BIN(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst), new_element)) {
+                       LOGE("failed to add autoplug element to bin");
+                       goto ERROR;
+               }
+
+               /* get pad from element */
+               sinkpad = gst_element_get_static_pad(GST_ELEMENT(new_element), "sink");
+               if (!sinkpad) {
+                       LOGE("failed to get sinkpad from autoplug element");
+                       goto ERROR;
+               }
+
+               /* link it */
+               if (GST_PAD_LINK_OK != gst_pad_link(pad, sinkpad)) {
+                       LOGE("failed to link autoplug element");
+                       goto ERROR;
+               }
+
+               gst_object_unref(sinkpad);
+               sinkpad = NULL;
+
+               /* run. setting PLAYING here since streamming source is live source */
+               MMPLAYER_ELEMENT_SET_STATE(new_element, GST_STATE_PLAYING);
+       }
+
+       if (caps)
+               gst_caps_unref(caps);
+
+       MMPLAYER_FLEAVE();
+
+       return;
+
+STATE_CHANGE_FAILED:
+ERROR:
+       /* FIXIT : take care if new_element has already added to pipeline */
+       if (new_element)
+               gst_object_unref(GST_OBJECT(new_element));
+
+       if (sinkpad)
+               gst_object_unref(GST_OBJECT(sinkpad));
+
+       if (caps)
+               gst_caps_unref(caps);
+
+       /* FIXIT : how to inform this error to MSL ????? */
+       /* FIXIT : I think we'd better to use g_idle_add() to destroy pipeline and
+        * then post an error to application
+        */
+}
+
+static void
+__mmplayer_gst_rtp_no_more_pads(GstElement *element,  gpointer data)
+{
+       mm_player_t *player = (mm_player_t *)data;
+
+       MMPLAYER_FENTER();
+
+       /* NOTE : we can remove fakesink here if there's no rtp_dynamic_pad. because whenever
+        * we connect autoplugging element to the pad which is just added to rtspsrc, we increase
+        * num_dynamic_pad. and this is no-more-pad situation which means no more pad will be added.
+        * So we can say this. if num_dynamic_pad is zero, it must be one of followings
+
+        * [1] audio and video will be dumped with filesink.
+        * [2] autoplugging is done by just using pad caps.
+        * [3] typefinding has happend in audio but audiosink is created already before no-more-pad signal
+        * and the video will be dumped via filesink.
+        */
+       if (player->num_dynamic_pad == 0) {
+               LOGD("it seems pad caps is directely used for autoplugging. removing fakesink now");
+
+               if (!__mmplayer_gst_remove_fakesink(player,
+                       &player->pipeline->mainbin[MMPLAYER_M_SRC_FAKESINK]))
+                       /* NOTE : __mmplayer_pipeline_complete() can be called several time. because
+                        * signaling mechanism(pad-added, no-more-pad, new-decoded-pad) from various
+                        * source element are not same. To overcome this situation, this function will called
+                        * several places and several times. Therefore, this is not an error case.
+                        */
+                       return;
+       }
+
+       /* create dot before error-return. for debugging */
+       MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-no-more-pad");
+
+       player->no_more_pad = TRUE;
+
+       MMPLAYER_FLEAVE();
+}
+
+static GstElement *
+__mmplayer_gst_make_rtsp_src(mm_player_t *player)
+{
+       GstElement *element = NULL;
+       gchar *user_agent = NULL;
+       MMHandleType attrs = 0;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player, NULL);
+
+       /* get profile attribute */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (!attrs) {
+               LOGE("failed to get content attribute");
+               return NULL;
+       }
+
+       element = gst_element_factory_make("rtspsrc", "rtsp source");
+       if (!element) {
+               LOGE("failed to create rtspsrc element");
+               return NULL;
+       }
+
+       /* get attribute */
+       mm_attrs_get_string_by_name(attrs, "streaming_user_agent", &user_agent);
+
+       SECURE_LOGD("user_agent : %s", user_agent);
+
+       /* setting property to streaming source */
+       g_object_set(G_OBJECT(element), "location", player->profile.uri, NULL);
+       if (user_agent)
+               g_object_set(G_OBJECT(element), "user-agent", user_agent, NULL);
+
+       __mmplayer_add_signal_connection(player, G_OBJECT(element), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "pad-added",
+                                                                       G_CALLBACK(__mmplayer_gst_rtp_dynamic_pad), (gpointer)player);
+       __mmplayer_add_signal_connection(player, G_OBJECT(element), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "no-more-pads",
+                                                                       G_CALLBACK(__mmplayer_gst_rtp_no_more_pads), (gpointer)player);
+
+       MMPLAYER_FLEAVE();
+       return element;
+}
+
+static GstElement *
+__mmplayer_gst_make_http_src(mm_player_t *player)
+{
+       GstElement *element = NULL;
+       MMHandleType attrs = 0;
+       gchar *user_agent, *cookies, **cookie_list;
+       gint http_timeout = DEFAULT_HTTP_TIMEOUT;
+       user_agent = cookies = NULL;
+       cookie_list = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player, NULL);
+
+       /* get profile attribute */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (!attrs) {
+               LOGE("failed to get content attribute");
+               return NULL;
+       }
+
+       LOGD("using http streamming source [%s]", player->ini.httpsrc_element);
+
+       element = gst_element_factory_make(player->ini.httpsrc_element, "http_streaming_source");
+       if (!element) {
+               LOGE("failed to create http streaming source element[%s]", player->ini.httpsrc_element);
+               return NULL;
+       }
+
+       /* get attribute */
+       mm_attrs_get_string_by_name(attrs, "streaming_cookie", &cookies);
+       mm_attrs_get_string_by_name(attrs, "streaming_user_agent", &user_agent);
+
+       if (player->ini.http_timeout != DEFAULT_HTTP_TIMEOUT)
+               http_timeout = player->ini.http_timeout;
+
+       /* get attribute */
+       SECURE_LOGD("location : %s", player->profile.uri);
+       SECURE_LOGD("cookies : %s", cookies);
+       SECURE_LOGD("user_agent :  %s", user_agent);
+       LOGD("timeout : %d", http_timeout);
+
+       /* setting property to streaming source */
+       g_object_set(G_OBJECT(element), "location", player->profile.uri,
+                               "timeout", http_timeout, "blocksize", (unsigned long)(64 * 1024), NULL);
+
+       /* parsing cookies */
+       if ((cookie_list = util_get_cookie_list((const char *)cookies))) {
+               g_object_set(G_OBJECT(element), "cookies", cookie_list, NULL);
+               g_strfreev(cookie_list);
+       }
+
+       if (user_agent)
+               g_object_set(G_OBJECT(element), "user-agent", user_agent, NULL);
+
+       if (MMPLAYER_URL_HAS_DASH_SUFFIX(player))
+               LOGW("[DASH] this is still experimental feature");
+
+       MMPLAYER_FLEAVE();
+       return element;
+}
+
+static GstElement *
+__mmplayer_gst_make_file_src(mm_player_t *player)
+{
+       GstElement *element = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player, NULL);
+
+       LOGD("using filesrc for 'file://' handler");
+       if (!util_get_storage_info(player->profile.uri, &player->storage_info[MMPLAYER_PATH_VOD])) {
+               LOGE("failed to get storage info");
+               return NULL;
+       }
+
+       element = gst_element_factory_make("filesrc", "source");
+       if (!element) {
+               LOGE("failed to create filesrc");
+               return NULL;
+       }
+
+       g_object_set(G_OBJECT(element), "location", (player->profile.uri) + 7, NULL); /* uri+7 -> remove "file:// */
+
+       MMPLAYER_FLEAVE();
+       return element;
+}
+
+static gboolean
+__mmplayer_gst_msg_push(GstBus *bus, GstMessage *msg, gpointer data)
+{
+       mm_player_t *player = (mm_player_t *)data;
+
+       g_return_val_if_fail(player, FALSE);
+       g_return_val_if_fail(msg && GST_IS_MESSAGE(msg), FALSE);
+
+       gst_message_ref(msg);
+
+       g_mutex_lock(&player->bus_msg_q_lock);
+       g_queue_push_tail(player->bus_msg_q, msg);
+       g_mutex_unlock(&player->bus_msg_q_lock);
+
+       MMPLAYER_BUS_MSG_THREAD_LOCK(player);
+       MMPLAYER_BUS_MSG_THREAD_SIGNAL(player);
+       MMPLAYER_BUS_MSG_THREAD_UNLOCK(player);
+       return TRUE;
+}
+
+static gpointer __mmplayer_gst_bus_msg_thread(gpointer data)
+{
+       mm_player_t *player = (mm_player_t *)(data);
+       GstMessage *msg = NULL;
+       GstBus *bus = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player &&
+                                               player->pipeline &&
+                                               player->pipeline->mainbin &&
+                                               player->pipeline->mainbin[MMPLAYER_M_PIPE].gst,
+                                               NULL);
+
+       bus = gst_pipeline_get_bus(GST_PIPELINE(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst));
+       if (!bus) {
+               LOGE("cannot get BUS from the pipeline");
+               return NULL;
+       }
+
+       MMPLAYER_BUS_MSG_THREAD_LOCK(player);
+
+       LOGD("[handle: %p] gst bus msg thread will be started.", player);
+       while (!player->bus_msg_thread_exit) {
+               g_mutex_lock(&player->bus_msg_q_lock);
+               msg = g_queue_pop_head(player->bus_msg_q);
+               g_mutex_unlock(&player->bus_msg_q_lock);
+               if (msg == NULL) {
+                       MMPLAYER_BUS_MSG_THREAD_WAIT(player);
+                       continue;
+               }
+               MMPLAYER_BUS_MSG_THREAD_UNLOCK(player);
+               /* handle the gst msg */
+               __mmplayer_gst_bus_msg_callback(msg, player);
+               MMPLAYER_BUS_MSG_THREAD_LOCK(player);
+               gst_message_unref(msg);
+       }
+
+       MMPLAYER_BUS_MSG_THREAD_UNLOCK(player);
+       gst_object_unref(GST_OBJECT(bus));
+
+       MMPLAYER_FLEAVE();
+       return NULL;
+}
+
+static int
+__mmplayer_gst_check_duration(mm_player_t *player, gint64 position)
+{
+       gint64 dur_nsec = 0;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline, MM_ERROR_PLAYER_NOT_INITIALIZED);
+
+       if (MMPLAYER_IS_MS_BUFF_SRC(player))
+               return MM_ERROR_NONE;
+
+       /* NOTE : duration cannot be zero except live streaming.
+        *              Since some element could have some timing problemn with quering duration, try again.
+        */
+       if (player->duration == 0) {
+               if (!gst_element_query_duration(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_FORMAT_TIME, &dur_nsec)) {
+                       /* For RTSP Streaming , duration is not returned in READY state. So seek to the previous position does not work properly.
+                        * Added a patch to postpone the actual seek when state changes to PLAY. Sending a fake SEEK_COMPLETED event to finish the current request. */
+                       if ((MMPLAYER_IS_RTSP_STREAMING(player)) &&
+                               (__mmplayer_get_stream_service_type(player) == STREAMING_SERVICE_VOD)) {
+                               player->pending_seek.is_pending = true;
+                               player->pending_seek.pos = position;
+                               player->seek_state = MMPLAYER_SEEK_NONE;
+                               MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
+                               return MM_ERROR_PLAYER_NO_OP;
+                       } else {
+                               player->seek_state = MMPLAYER_SEEK_NONE;
+                               return MM_ERROR_PLAYER_SEEK;
+                       }
+               }
+               player->duration = dur_nsec;
+       }
+
+       if (player->duration > 0 && player->duration < position) {
+               LOGE("invalid pos %"G_GINT64_FORMAT", dur: %"G_GINT64_FORMAT, position, player->duration);
+               return MM_ERROR_INVALID_ARGUMENT;
+       }
+
+       MMPLAYER_FLEAVE();
+       return MM_ERROR_NONE;
+}
+
+static gboolean
+__mmplayer_gst_check_seekable(mm_player_t *player)
+{
+       GstQuery *query = NULL;
+       gboolean seekable = FALSE;
+
+       if (MMPLAYER_IS_MS_BUFF_SRC(player)) {
+               return TRUE;
+       }
+
+       query = gst_query_new_seeking(GST_FORMAT_TIME);
+       if (gst_element_query(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, query)) {
+               gst_query_parse_seeking(query, NULL, &seekable, NULL, NULL);
+               gst_query_unref(query);
+
+               if (!seekable) {
+                       LOGW("non-seekable content");
+                       player->seek_state = MMPLAYER_SEEK_NONE;
+                       return FALSE;
+               }
+       } else {
+               LOGW("failed to get seeking query");
+               gst_query_unref(query); /* keep seeking operation */
+       }
+
+       return TRUE;
+}
+
+int
+__mmplayer_gst_set_state(mm_player_t *player, GstElement *element,  GstState state, gboolean async, gint timeout)
+{
+       GstState element_state = GST_STATE_VOID_PENDING;
+       GstState element_pending_state = GST_STATE_VOID_PENDING;
+       GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
+
+       MMPLAYER_FENTER();
+
+       MMPLAYER_RETURN_VAL_IF_FAIL(player, MM_ERROR_PLAYER_NOT_INITIALIZED);
+       MMPLAYER_RETURN_VAL_IF_FAIL(element, MM_ERROR_INVALID_ARGUMENT);
+
+       LOGD("setting [%s] element state to : %s", GST_ELEMENT_NAME(element), gst_element_state_get_name(state));
+
+       /* set state */
+       ret = gst_element_set_state(element, state);
+       if (ret == GST_STATE_CHANGE_FAILURE) {
+               LOGE("failed to set [%s] state", GST_ELEMENT_NAME(element));
+
+               /* dump state of all element */
+               __mmplayer_dump_pipeline_state(player);
+
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       /* return here so state transition to be done in async mode */
+       if (async) {
+               LOGD("async state transition. not waiting for state complete.");
+               return MM_ERROR_NONE;
+       }
+
+       /* wait for state transition */
+       ret = gst_element_get_state(element, &element_state, &element_pending_state, timeout * GST_SECOND);
+       if (ret == GST_STATE_CHANGE_FAILURE || (state != element_state)) {
+               LOGE("failed to change [%s] element state to [%s] within %d sec",
+                       GST_ELEMENT_NAME(element),
+                       gst_element_state_get_name(state), timeout);
+
+               LOGE(" [%s] state : %s   pending : %s",
+                       GST_ELEMENT_NAME(element),
+                       gst_element_state_get_name(element_state),
+                       gst_element_state_get_name(element_pending_state));
+
+               /* dump state of all element */
+               __mmplayer_dump_pipeline_state(player);
+
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       LOGD("[%s] element state has changed", GST_ELEMENT_NAME(element));
 
-       return reply;
+       MMPLAYER_FLEAVE();
+
+       return MM_ERROR_NONE;
 }
 
-int __mmplayer_gst_start(mm_player_t* player)
+int
+__mmplayer_gst_start(mm_player_t *player)
 {
        int ret = MM_ERROR_NONE;
        gboolean async = FALSE;
@@ -2223,9 +3002,10 @@ int __mmplayer_gst_start(mm_player_t* player)
 
        MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline, MM_ERROR_PLAYER_NOT_INITIALIZED);
 
-       /* NOTE : if SetPosition was called before Start. do it now */
-       /* streaming doesn't support it. so it should be always sync */
-       /* !!create one more api to check if there is pending seek rather than checking variables */
+       /* NOTE : if SetPosition was called before Start. do it now
+        * streaming doesn't support it. so it should be always sync
+        * !!create one more api to check if there is pending seek rather than checking variables
+        */
        if (player->pending_seek.is_pending && !MMPLAYER_IS_STREAMING(player)) {
                MMPLAYER_TARGET_STATE(player) = MM_PLAYER_STATE_PAUSED;
                ret = __mmplayer_gst_pause(player, FALSE);
@@ -2246,14 +3026,13 @@ int __mmplayer_gst_start(mm_player_t* player)
        /* set pipeline state to PLAYING  */
        ret = __mmplayer_gst_set_state(player,
                player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_STATE_PLAYING, async, MMPLAYER_STATE_CHANGE_TIMEOUT(player));
-
-       if (ret == MM_ERROR_NONE) {
-               MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
-       } else {
+       if (ret != MM_ERROR_NONE) {
                LOGE("failed to set state to PLAYING");
                return ret;
        }
 
+       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
+
        /* generating debug info before returning error */
        MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-start");
 
@@ -2262,7 +3041,8 @@ int __mmplayer_gst_start(mm_player_t* player)
        return ret;
 }
 
-int __mmplayer_gst_stop(mm_player_t* player)
+int
+__mmplayer_gst_stop(mm_player_t *player)
 {
        GstStateChangeReturn change_ret = GST_STATE_CHANGE_SUCCESS;
        MMHandleType attrs = 0;
@@ -2281,7 +3061,7 @@ int __mmplayer_gst_stop(mm_player_t* player)
 
        attrs = MMPLAYER_GET_ATTRS(player);
        if (!attrs) {
-               LOGE("cannot get content attribute\n");
+               LOGE("cannot get content attribute");
                return MM_ERROR_PLAYER_INTERNAL;
        }
 
@@ -2292,22 +3072,21 @@ int __mmplayer_gst_stop(mm_player_t* player)
                (player->streaming_type == STREAMING_SERVICE_VOD && player->videodec_linked))
                rewind = TRUE;
 
-       if (player->es_player_push_mode || MMPLAYER_IS_HTTP_PD(player)) {
+       if (player->es_player_push_mode)
                /* disable the async state transition because there could be no data in the pipeline */
-               __mmplayer_gst_handle_async(player, FALSE, MMPLAYER_SINK_ALL);
-       }
+               __mmplayer_gst_set_async(player, FALSE, MMPLAYER_SINK_ALL);
 
        /* set gst state */
        ret = __mmplayer_gst_set_state(player, player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_STATE_PAUSED, FALSE, timeout);
 
-       if (player->es_player_push_mode || MMPLAYER_IS_HTTP_PD(player)) {
+       if (player->es_player_push_mode) {
                /* enable the async state transition as default operation */
-               __mmplayer_gst_handle_async(player, TRUE, MMPLAYER_SINK_ALL);
+               __mmplayer_gst_set_async(player, TRUE, MMPLAYER_SINK_ALL);
        }
 
        /* return if set_state has failed */
        if (ret != MM_ERROR_NONE) {
-               LOGE("failed to set state.\n");
+               LOGE("failed to set state.");
                return ret;
        }
 
@@ -2316,7 +3095,7 @@ int __mmplayer_gst_stop(mm_player_t* player)
                if (!__mmplayer_gst_seek(player, player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, player->playback_rate,
                                GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH, GST_SEEK_TYPE_SET, 0,
                                GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE)) {
-                       LOGW("failed to rewind\n");
+                       LOGW("failed to rewind");
                        ret = MM_ERROR_PLAYER_SEEK;
                }
        }
@@ -2332,7 +3111,7 @@ int __mmplayer_gst_stop(mm_player_t* player)
        if (change_ret == GST_STATE_CHANGE_SUCCESS || change_ret == GST_STATE_CHANGE_NO_PREROLL) {
                MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_READY);
        } else {
-               LOGE("fail to stop player.\n");
+               LOGE("fail to stop player.");
                ret = MM_ERROR_PLAYER_INTERNAL;
                __mmplayer_dump_pipeline_state(player);
        }
@@ -2345,7 +3124,8 @@ int __mmplayer_gst_stop(mm_player_t* player)
        return ret;
 }
 
-int __mmplayer_gst_pause(mm_player_t* player, gboolean async)
+int
+__mmplayer_gst_pause(mm_player_t *player, gboolean async)
 {
        int ret = MM_ERROR_NONE;
 
@@ -2362,80 +3142,80 @@ int __mmplayer_gst_pause(mm_player_t* player, gboolean async)
        ret = __mmplayer_gst_set_state(player,
                player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_STATE_PAUSED, async, MMPLAYER_STATE_CHANGE_TIMEOUT(player));
 
-       if (FALSE == async) {
-               if (ret != MM_ERROR_NONE) {
-                       GstMessage *msg = NULL;
-                       GTimer *timer = NULL;
-                       gdouble MAX_TIMEOUT_SEC = 3;
+       if (async)
+               goto EXIT;
 
-                       LOGE("failed to set state to PAUSED");
+       if (ret != MM_ERROR_NONE) {
+               GstMessage *msg = NULL;
+               GTimer *timer = NULL;
+               gdouble MAX_TIMEOUT_SEC = 3;
 
-                       if (!player->bus_watcher) {
-                               LOGE("there is no bus msg thread. pipeline is shutting down.");
-                               return ret;
-                       }
+               LOGE("failed to set state to PAUSED");
 
-                       if (player->msg_posted) {
-                               LOGE("error msg is already posted.");
-                               return ret;
-                       }
+               if (!player->bus_watcher) {
+                       LOGE("there is no bus msg thread. pipeline is shutting down.");
+                       return ret;
+               }
 
-                       timer = g_timer_new();
-                       g_timer_start(timer);
+               if (player->msg_posted) {
+                       LOGE("error msg is already posted.");
+                       return ret;
+               }
 
-                       GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst));
+               timer = g_timer_new();
+               g_timer_start(timer);
 
-                       do {
-                               msg = gst_bus_timed_pop(bus, 100 * GST_MSECOND);
-                               if (msg) {
-                                       if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_ERROR) {
-                                               GError *error = NULL;
+               GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst));
 
-                                               /* parse error code */
-                                               gst_message_parse_error(msg, &error, NULL);
+               do {
+                       msg = gst_bus_timed_pop(bus, 100 * GST_MSECOND);
+                       if (msg) {
+                               if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_ERROR) {
+                                       GError *error = NULL;
 
-                                               if (gst_structure_has_name(gst_message_get_structure(msg), "streaming_error")) {
-                                                       /* Note : the streaming error from the streaming source is handled
-                                                        *   using __mmplayer_handle_streaming_error.
-                                                        */
-                                                       __mmplayer_handle_streaming_error(player, msg);
+                                       /* parse error code */
+                                       gst_message_parse_error(msg, &error, NULL);
 
-                                               } else if (error) {
-                                                       LOGE("paring error posted from bus, domain : %s, code : %d", g_quark_to_string(error->domain), error->code);
+                                       if (gst_structure_has_name(gst_message_get_structure(msg), "streaming_error")) {
+                                               /* Note : the streaming error from the streaming source is handled
+                                                       *   using __mmplayer_handle_streaming_error.
+                                                       */
+                                               __mmplayer_handle_streaming_error(player, msg);
 
-                                                       if (error->domain == GST_STREAM_ERROR)
-                                                               ret = __mmplayer_gst_handle_stream_error(player, error, msg);
-                                                       else if (error->domain == GST_RESOURCE_ERROR)
-                                                               ret = __mmplayer_gst_handle_resource_error(player, error->code, NULL);
-                                                       else if (error->domain == GST_LIBRARY_ERROR)
-                                                               ret = __mmplayer_gst_handle_library_error(player, error->code);
-                                                       else if (error->domain == GST_CORE_ERROR)
-                                                               ret = __mmplayer_gst_handle_core_error(player, error->code);
+                                       } else if (error) {
+                                               LOGE("paring error posted from bus, domain : %s, code : %d", g_quark_to_string(error->domain), error->code);
 
-                                                       g_error_free(error);
-                                               }
-                                               player->msg_posted = TRUE;
+                                               if (error->domain == GST_STREAM_ERROR)
+                                                       ret = __mmplayer_gst_handle_stream_error(player, error, msg);
+                                               else if (error->domain == GST_RESOURCE_ERROR)
+                                                       ret = __mmplayer_gst_handle_resource_error(player, error->code, NULL);
+                                               else if (error->domain == GST_LIBRARY_ERROR)
+                                                       ret = __mmplayer_gst_handle_library_error(player, error->code);
+                                               else if (error->domain == GST_CORE_ERROR)
+                                                       ret = __mmplayer_gst_handle_core_error(player, error->code);
+
+                                               g_error_free(error);
                                        }
-                                       gst_message_unref(msg);
+                                       player->msg_posted = TRUE;
                                }
-                       } while (!player->msg_posted && (g_timer_elapsed(timer, NULL) < MAX_TIMEOUT_SEC));
-                       /* clean */
-                       gst_object_unref(bus);
-                       g_timer_stop(timer);
-                       g_timer_destroy(timer);
-
-                       return ret;
+                               gst_message_unref(msg);
+                       }
+               } while (!player->msg_posted && (g_timer_elapsed(timer, NULL) < MAX_TIMEOUT_SEC));
+               /* clean */
+               gst_object_unref(bus);
+               g_timer_stop(timer);
+               g_timer_destroy(timer);
 
-               } else if ((!MMPLAYER_IS_RTSP_STREAMING(player)) && (!player->video_stream_cb) &&
-                                  (!player->pipeline->videobin) && (!player->pipeline->audiobin)) {
+               return ret;
+       }
 
-                       return MM_ERROR_PLAYER_CODEC_NOT_FOUND;
+       if ((!MMPLAYER_IS_RTSP_STREAMING(player)) && (!player->video_stream_cb) &&
+               (!player->pipeline->videobin) && (!player->pipeline->audiobin))
+               return MM_ERROR_PLAYER_CODEC_NOT_FOUND;
 
-               } else {
-                       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PAUSED);
-               }
-       }
+       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PAUSED);
 
+EXIT:
        /* generate dot file before returning error */
        MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-pause");
 
@@ -2444,7 +3224,8 @@ int __mmplayer_gst_pause(mm_player_t* player, gboolean async)
        return ret;
 }
 
-int __mmplayer_gst_resume(mm_player_t* player, gboolean async)
+int
+__mmplayer_gst_resume(mm_player_t *player, gboolean async)
 {
        int ret = MM_ERROR_NONE;
        gint timeout = 0;
@@ -2469,11 +3250,11 @@ int __mmplayer_gst_resume(mm_player_t* player, gboolean async)
        if (ret != MM_ERROR_NONE) {
                LOGE("failed to set state to PLAYING");
                goto EXIT;
-       } else {
-               if (async == FALSE)
-                       MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
        }
 
+       if (!async)
+               MMPLAYER_SET_STATE(player, MM_PLAYER_STATE_PLAYING);
+
 EXIT:
        /* generate dot file */
        MMPLAYER_GENERATE_DOT_IF_ENABLED(player, "pipeline-status-resume");
@@ -2485,9 +3266,9 @@ EXIT:
 
 /* sending event to one of sinkelements */
 gboolean
-__mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
+__mmplayer_gst_send_event_to_sink(mm_player_t *player, GstEvent *event)
 {
-       GstEvent * event2 = NULL;
+       GstEvent *event2 = NULL;
        GList *sinks = NULL;
        gboolean res = FALSE;
        MMPLAYER_FENTER();
@@ -2516,14 +3297,14 @@ __mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
                        gst_event_ref(event);
 
                        if ((res = gst_element_send_event(sink, event))) {
-                               LOGD("sending event[%s] to sink element [%s] success!\n",
+                               LOGD("sending event[%s] to sink element [%s] success!",
                                        GST_EVENT_TYPE_NAME(event), GST_ELEMENT_NAME(sink));
 
                                /* rtsp case, asyn_done is not called after seek during pause state */
                                if (MMPLAYER_IS_RTSP_STREAMING(player)) {
                                        if (GST_EVENT_TYPE(event) == GST_EVENT_SEEK) {
                                                if (MMPLAYER_TARGET_STATE(player) == MM_PLAYER_STATE_PAUSED) {
-                                                       LOGD("RTSP seek completed, after pause state..\n");
+                                                       LOGD("RTSP seek completed, after pause state..");
                                                        player->seek_state = MMPLAYER_SEEK_NONE;
                                                        MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
                                                }
@@ -2539,7 +3320,7 @@ __mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
                                }
                        }
 
-                       LOGD("sending event[%s] to sink element [%s] failed. try with next one.\n",
+                       LOGD("sending event[%s] to sink element [%s] failed. try with next one.",
                                GST_EVENT_TYPE_NAME(event), GST_ELEMENT_NAME(sink));
                }
 
@@ -2549,7 +3330,7 @@ __mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
        /* Note : Textbin is not linked to the video or audio bin.
         * It needs to send the event to the text sink seperatelly.
         */
-        if (player->play_subtitle && player->pipeline) {
+       if (player->play_subtitle && player->pipeline) {
                GstElement *text_sink = GST_ELEMENT_CAST(player->pipeline->textbin[MMPLAYER_T_FAKE_SINK].gst);
 
                if (GST_IS_ELEMENT(text_sink)) {
@@ -2557,15 +3338,15 @@ __mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
                        gst_event_ref(event2);
 
                        if ((res = gst_element_send_event(text_sink, event2)))
-                               LOGD("sending event[%s] to subtitle sink element [%s] success!\n",
-                                       GST_EVENT_TYPE_NAME(event2), GST_ELEMENT_NAME(text_sink));
+                               LOGD("sending event[%s] to subtitle sink element [%s] success!",
+                                               GST_EVENT_TYPE_NAME(event2), GST_ELEMENT_NAME(text_sink));
                        else
-                               LOGE("sending event[%s] to subtitle sink element [%s] failed!\n",
-                                       GST_EVENT_TYPE_NAME(event2), GST_ELEMENT_NAME(text_sink));
+                               LOGE("sending event[%s] to subtitle sink element [%s] failed!",
+                                               GST_EVENT_TYPE_NAME(event2), GST_ELEMENT_NAME(text_sink));
 
                        gst_event_unref(event2);
                }
-        }
+       }
 
        gst_event_unref(event);
 
@@ -2575,11 +3356,11 @@ __mmplayer_gst_send_event_to_sink(mm_player_t* player, GstEvent* event)
 }
 
 gboolean
-__mmplayer_gst_seek(mm_player_t* player, GstElement * element, gdouble rate,
+__mmplayer_gst_seek(mm_player_t *player, GstElement *element, gdouble rate,
                        GstFormat format, GstSeekFlags flags, GstSeekType cur_type,
                        gint64 cur, GstSeekType stop_type, gint64 stop)
 {
-       GstEventevent = NULL;
+       GstEvent *event = NULL;
        gboolean result = FALSE;
 
        MMPLAYER_FENTER();
@@ -2600,11 +3381,10 @@ __mmplayer_gst_seek(mm_player_t* player, GstElement * element, gdouble rate,
 }
 
 int
-__mmplayer_gst_set_position(mm_player_t* player, int format, gint64 position, gboolean internal_called)
+__mmplayer_gst_set_position(mm_player_t *player, gint64 position, gboolean internal_called)
 {
-       gint64 dur_nsec = 0;
+       int ret = MM_ERROR_NONE;
        gint64 pos_nsec = 0;
-       gboolean ret = TRUE;
        gboolean accurated = FALSE;
        GstSeekFlags seek_flags = GST_SEEK_FLAG_FLUSH;
 
@@ -2612,177 +3392,81 @@ __mmplayer_gst_set_position(mm_player_t* player, int format, gint64 position, gb
        MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline, MM_ERROR_PLAYER_NOT_INITIALIZED);
        MMPLAYER_RETURN_VAL_IF_FAIL(!MMPLAYER_IS_LIVE_STREAMING(player), MM_ERROR_PLAYER_NO_OP);
 
-       if (MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PLAYING
-               && MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PAUSED)
+       if ((MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PLAYING)
+               && (MMPLAYER_CURRENT_STATE(player) != MM_PLAYER_STATE_PAUSED))
                goto PENDING;
 
-       if (!MMPLAYER_IS_MS_BUFF_SRC(player)) {
-               /* check duration */
-               /* NOTE : duration cannot be zero except live streaming.
-                *              Since some element could have some timing problemn with quering duration, try again.
-                */
-               if (player->duration == 0) {
-                       if (!gst_element_query_duration(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_FORMAT_TIME, &dur_nsec)) {
-                               /* For RTSP Streaming , duration is not returned in READY state. So seek to the previous position does not work properly.
-                                * Added a patch to postpone the actual seek when state changes to PLAY. Sending a fake SEEK_COMPLETED event to finish the current request. */
-                               if ((MMPLAYER_IS_RTSP_STREAMING(player)) && (__mmplayer_get_stream_service_type(player) == STREAMING_SERVICE_VOD)) {
-                                       player->pending_seek.is_pending = TRUE;
-                                       player->pending_seek.format = format;
-                                       player->pending_seek.pos = position;
-                                       player->seek_state = MMPLAYER_SEEK_NONE;
-                                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
-                                       return MM_ERROR_NONE;
-                               } else {
-                                       goto SEEK_ERROR;
-                               }
-                       }
-                       player->duration = dur_nsec;
-               }
+       ret = __mmplayer_gst_check_duration(player, position);
+       if (ret != MM_ERROR_NONE) {
+               LOGE("failed to check duration 0x%X", ret);
+               return (ret == MM_ERROR_PLAYER_NO_OP) ? MM_ERROR_NONE : ret;
        }
-       LOGD("playback rate: %f\n", player->playback_rate);
-
-       mm_attrs_get_int_by_name(player->attrs, "accurate_seek", &accurated);
-       if (accurated)
-               seek_flags |= GST_SEEK_FLAG_ACCURATE;
-       else
-               seek_flags |= GST_SEEK_FLAG_KEY_UNIT;
-
-       /* do seek */
-       switch (format) {
-       case MM_PLAYER_POS_FORMAT_TIME:
-       {
-               if (!MMPLAYER_IS_MS_BUFF_SRC(player)) {
-                       GstQuery *query = NULL;
-                       gboolean seekable = FALSE;
 
-                       /* check position is valid or not */
-                       if (position > player->duration)
-                               goto INVALID_ARGS;
-
-                       query = gst_query_new_seeking(GST_FORMAT_TIME);
-                       if (gst_element_query(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, query)) {
-                               gst_query_parse_seeking(query, NULL, &seekable, NULL, NULL);
-                               gst_query_unref(query);
-
-                               if (!seekable) {
-                                       LOGW("non-seekable content");
-                                       player->seek_state = MMPLAYER_SEEK_NONE;
-                                       return MM_ERROR_PLAYER_NO_OP;
-                               }
-                       } else {
-                               LOGW("failed to get seeking query");
-                               gst_query_unref(query); /* keep seeking operation */
-                       }
-
-                       LOGD("seeking to(%"G_GINT64_FORMAT") nsec, duration is %"G_GINT64_FORMAT" nsec\n", position, player->duration);
-
-                       /* For rtspsrc stack , npt-start value coming from server is used for finding the current position.
-                          But when a rtsp clip (especially from Youtube Desktop View) is paused and kept for sometime,npt-start is still increasing.
-                          This causes problem is position calculation during normal pause resume scenarios also.
-                          Currently during seek , we are sending the current position to rtspsrc module for position saving for later use. */
-                       if ((MMPLAYER_IS_RTSP_STREAMING(player)) &&
-                               (__mmplayer_get_stream_service_type(player) == STREAMING_SERVICE_VOD)) {
-                               if (!gst_element_query_position(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_FORMAT_TIME, &pos_nsec))
-                                       LOGW("getting current position failed in seek\n");
-
-                               player->last_position = pos_nsec;
-                               g_object_set(player->pipeline->mainbin[MMPLAYER_M_SRC].gst, "resume-position", player->last_position, NULL);
-                       }
-
-                       if (player->seek_state != MMPLAYER_SEEK_NONE) {
-                               LOGD("not completed seek");
-                               return MM_ERROR_PLAYER_DOING_SEEK;
-                       }
-               }
-
-               if (!internal_called)
-                       player->seek_state = MMPLAYER_SEEK_IN_PROGRESS;
-
-               if ((MMPLAYER_IS_HTTP_STREAMING(player)) && (!player->videodec_linked)) {
-                       gint64 cur_time = 0;
-
-                       /* get current position */
-                       gst_element_query_position(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_FORMAT_TIME, &cur_time);
-
-                       /* flush */
-                       GstEvent *event = gst_event_new_seek(1.0,
-                                                       GST_FORMAT_TIME,
-                                                       (GstSeekFlags)GST_SEEK_FLAG_FLUSH,
-                                                       GST_SEEK_TYPE_SET, cur_time,
-                                                       GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
-                       if (event)
-                               __mmplayer_gst_send_event_to_sink(player, event);
-
-                       if (!MMPLAYER_IS_RTSP_STREAMING(player))
-                               __mmplayer_gst_pause(player, FALSE);
-               }
+       if (!__mmplayer_gst_check_seekable(player))
+               return MM_ERROR_PLAYER_NO_OP;
 
-               pos_nsec = position;
+       LOGD("seeking to(%"G_GINT64_FORMAT") nsec, rate: %f, dur: %"G_GINT64_FORMAT" nsec",
+                               position, player->playback_rate, player->duration);
 
-               /* rtsp streaming case, there is no sink after READY TO PAUSE state(no preroll state change).
-                       that's why set position through property. */
-               if ((MMPLAYER_IS_RTSP_STREAMING(player)) &&
-                       (MMPLAYER_CURRENT_STATE(player) == MM_PLAYER_STATE_PAUSED) &&
-                       (MMPLAYER_PREV_STATE(player) == MM_PLAYER_STATE_READY) &&
-                       (!player->videodec_linked) && (!player->audiodec_linked)) {
+       /* For rtspsrc stack , npt-start value coming from server is used for finding the current position.
+          But when a rtsp clip (especially from Youtube Desktop View) is paused and kept for sometime,npt-start is still increasing.
+          This causes problem is position calculation during normal pause resume scenarios also.
+          Currently during seek , we are sending the current position to rtspsrc module for position saving for later use. */
+       if ((MMPLAYER_IS_RTSP_STREAMING(player)) &&
+               (__mmplayer_get_stream_service_type(player) == STREAMING_SERVICE_VOD)) {
+               if (!gst_element_query_position(player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, GST_FORMAT_TIME, &pos_nsec))
+                       LOGW("getting current position failed in seek");
 
-                       g_object_set(player->pipeline->mainbin[MMPLAYER_M_SRC].gst, "pending-start-position", pos_nsec, NULL);
-                       LOGD("[%s] set position =%"GST_TIME_FORMAT,
-                                       GST_ELEMENT_NAME(player->pipeline->mainbin[MMPLAYER_M_SRC].gst), GST_TIME_ARGS(pos_nsec));
-                       player->seek_state = MMPLAYER_SEEK_NONE;
-                       MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
-               } else {
-                       ret = __mmplayer_gst_seek(player, player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, player->playback_rate,
-                                                       GST_FORMAT_TIME, seek_flags,
-                                                       GST_SEEK_TYPE_SET, pos_nsec, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
-               }
+               player->last_position = pos_nsec;
+               g_object_set(player->pipeline->mainbin[MMPLAYER_M_SRC].gst, "resume-position", player->last_position, NULL);
+       }
 
-               if (!ret) {
-                       LOGE("failed to set position.");
-                       goto SEEK_ERROR;
-               }
+       if (player->seek_state != MMPLAYER_SEEK_NONE) {
+               LOGD("not completed seek");
+               return MM_ERROR_PLAYER_DOING_SEEK;
        }
-       break;
 
-       case MM_PLAYER_POS_FORMAT_PERCENT:
-       {
-               LOGD("seeking to %"G_GINT64_FORMAT"%%", position);
+       if (!internal_called)
+               player->seek_state = MMPLAYER_SEEK_IN_PROGRESS;
 
-               if (player->seek_state != MMPLAYER_SEEK_NONE) {
-                       LOGD("not completed seek");
-                       return MM_ERROR_PLAYER_DOING_SEEK;
-               }
+       /* rtsp streaming case, there is no sink after READY TO PAUSE state(no preroll state change).
+               that's why set position through property. */
+       if ((MMPLAYER_IS_RTSP_STREAMING(player)) &&
+               (MMPLAYER_CURRENT_STATE(player) == MM_PLAYER_STATE_PAUSED) &&
+               (MMPLAYER_PREV_STATE(player) == MM_PLAYER_STATE_READY) &&
+               (!player->videodec_linked) && (!player->audiodec_linked)) {
+
+               LOGD("[%s] set position =%"GST_TIME_FORMAT,
+                               GST_ELEMENT_NAME(player->pipeline->mainbin[MMPLAYER_M_SRC].gst), GST_TIME_ARGS(position));
 
-               if (!internal_called)
-                       player->seek_state = MMPLAYER_SEEK_IN_PROGRESS;
+               g_object_set(player->pipeline->mainbin[MMPLAYER_M_SRC].gst, "pending-start-position", position, NULL);
+               player->seek_state = MMPLAYER_SEEK_NONE;
+               MMPLAYER_POST_MSG(player, MM_MESSAGE_SEEK_COMPLETED, NULL);
+       } else {
+               mm_attrs_get_int_by_name(player->attrs, "accurate_seek", &accurated);
+               if (accurated)
+                       seek_flags |= GST_SEEK_FLAG_ACCURATE;
+               else
+                       seek_flags |= GST_SEEK_FLAG_KEY_UNIT;
 
-               /* FIXIT : why don't we use 'GST_FORMAT_PERCENT' */
-               pos_nsec = (gint64)((position * player->duration) / 100);
-               ret = __mmplayer_gst_seek(player, player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, player->playback_rate,
+               if (!__mmplayer_gst_seek(player, player->pipeline->mainbin[MMPLAYER_M_PIPE].gst, player->playback_rate,
                                                GST_FORMAT_TIME, seek_flags,
-                                               GST_SEEK_TYPE_SET, pos_nsec, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
-               if (!ret) {
-                       LOGE("failed to set position. pos[%"G_GINT64_FORMAT"] dur[%"G_GINT64_FORMAT"] ", pos_nsec, player->duration);
+                                               GST_SEEK_TYPE_SET, position, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE)) {
+                       LOGE("failed to set position");
                        goto SEEK_ERROR;
                }
        }
-       break;
-
-       default:
-               goto INVALID_ARGS;
-       }
 
        /* NOTE : store last seeking point to overcome some bad operation
-         *     (returning zero when getting current position) of some elements
-         */
-       player->last_position = pos_nsec;
+        *     (returning zero when getting current position) of some elements
+        */
+       player->last_position = position;
 
        /* MSL should guarante playback rate when seek is selected during trick play of fast forward. */
        if (player->playback_rate > 1.0)
                _mmplayer_set_playspeed((MMHandleType)player, player->playback_rate, FALSE);
 
-       if ((!internal_called) &&
-           (player->streamer) && (player->streamer->buffering_state & MM_PLAYER_BUFFERING_IN_PROGRESS)) {
+       if ((player->streamer) && (player->streamer->buffering_state & MM_PLAYER_BUFFERING_IN_PROGRESS)) {
                LOGD("buffering should be reset after seeking");
                player->streamer->buffering_state = MM_PLAYER_BUFFERING_ABORT;
                player->streamer->buffering_percent = 100; /* after seeking, new per can be non-zero. */
@@ -2792,28 +3476,23 @@ __mmplayer_gst_set_position(mm_player_t* player, int format, gint64 position, gb
        return MM_ERROR_NONE;
 
 PENDING:
-       player->pending_seek.is_pending = TRUE;
-       player->pending_seek.format = format;
+       player->pending_seek.is_pending = true;
        player->pending_seek.pos = position;
 
-       LOGW("player current-state : %s, pending-state : %s, just preserve pending position(%"G_GINT64_FORMAT").\n",
+       LOGW("player current-state : %s, pending-state : %s, just preserve pending position(%"G_GINT64_FORMAT")",
                MMPLAYER_STATE_GET_NAME(MMPLAYER_CURRENT_STATE(player)),
                MMPLAYER_STATE_GET_NAME(MMPLAYER_PENDING_STATE(player)),
                player->pending_seek.pos);
 
        return MM_ERROR_NONE;
 
-INVALID_ARGS:
-       LOGE("invalid arguments, position: %"G_GINT64_FORMAT" dur : %"G_GINT64_FORMAT" format : %d \n", position, player->duration, format);
-       return MM_ERROR_INVALID_ARGUMENT;
-
 SEEK_ERROR:
        player->seek_state = MMPLAYER_SEEK_NONE;
        return MM_ERROR_PLAYER_SEEK;
 }
 
 int
-__mmplayer_gst_get_position(mm_player_t* player, int format, gint64* position)
+__mmplayer_gst_get_position(mm_player_t *player, gint64 *position)
 {
 #define TRICKPLAY_OFFSET GST_MSECOND
 
@@ -2858,30 +3537,13 @@ __mmplayer_gst_get_position(mm_player_t* player, int format, gint64* position)
                player->last_position = pos_nsec;
        }
 
-       switch (format) {
-       case MM_PLAYER_POS_FORMAT_TIME:
-               *position = pos_nsec;
-               break;
-
-       case MM_PLAYER_POS_FORMAT_PERCENT:
-       {
-               if (player->duration <= 0) {
-                       LOGD("duration is [%"G_GINT64_FORMAT"], so returning position 0\n", player->duration);
-                       *position = 0;
-               } else {
-                       LOGD("position is [%"G_GINT64_FORMAT"] nsec , duration is [%"G_GINT64_FORMAT"] nsec", pos_nsec, player->duration);
-                       *position = (gint64)(pos_nsec * 100 / player->duration);
-               }
-               break;
-       }
-       default:
-               return MM_ERROR_PLAYER_INTERNAL;
-       }
+       *position = pos_nsec;
 
        return MM_ERROR_NONE;
 }
 
-int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned long* start_pos, unsigned long* stop_pos)
+int
+__mmplayer_gst_get_buffer_position(mm_player_t *player, int *start_pos, int *end_pos)
 {
 #define STREAMING_IS_FINISHED  0
 #define BUFFERING_MAX_PER      100
@@ -2889,7 +3551,7 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
 #define CHECK_PERCENT_VALUE(a, min, max)(((a) > (min)) ? (((a) < (max)) ? (a) : (max)) : (min))
 
        MMPlayerGstElement *mainbin = NULL;
-       gint start_per = DEFAULT_PER_VALUE, stop_per = DEFAULT_PER_VALUE;
+       gint start_per = DEFAULT_PER_VALUE, end_per = DEFAULT_PER_VALUE;
        gint64 buffered_total = 0;
        gint64 position = 0;
        gint buffered_sec = -1;
@@ -2902,29 +3564,24 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
                                                player->pipeline->mainbin,
                                                MM_ERROR_PLAYER_NOT_INITIALIZED);
 
-       MMPLAYER_RETURN_VAL_IF_FAIL(start_pos && stop_pos, MM_ERROR_INVALID_ARGUMENT);
+       MMPLAYER_RETURN_VAL_IF_FAIL(start_pos && end_pos, MM_ERROR_INVALID_ARGUMENT);
 
        *start_pos = 0;
-       *stop_pos = 0;
+       *end_pos = 0;
 
        if (!MMPLAYER_IS_HTTP_STREAMING(player)) {
                /* and rtsp is not ready yet. */
-               LOGW("it's only used for http streaming case.\n");
+               LOGW("it's only used for http streaming case");
                return MM_ERROR_PLAYER_NO_OP;
        }
 
-       if (format != MM_PLAYER_POS_FORMAT_PERCENT) {
-               LOGW("Time format is not supported yet.\n");
-               return MM_ERROR_INVALID_ARGUMENT;
-       }
-
        if (content_size_time <= 0 || content_size_bytes <= 0) {
-               LOGW("there is no content size.");
+               LOGW("there is no content size");
                return MM_ERROR_NONE;
        }
 
-       if (__mmplayer_gst_get_position(player, MM_PLAYER_POS_FORMAT_TIME, &position) != MM_ERROR_NONE) {
-               LOGW("fail to get current position.");
+       if (__mmplayer_gst_get_position(player, &position) != MM_ERROR_NONE) {
+               LOGW("fail to get current position");
                return MM_ERROR_NONE;
        }
 
@@ -2932,7 +3589,7 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
                GST_TIME_AS_MSECONDS(position), (guint)GST_TIME_AS_SECONDS(content_size_time), content_size_bytes);
 
        mainbin = player->pipeline->mainbin;
-       start_per = (gint)(floor(100 *(gdouble)position / (gdouble)content_size_time));
+       start_per = (gint)(floor(100 * (gdouble)position / (gdouble)content_size_time));
 
        if (mainbin[MMPLAYER_M_MUXED_S_BUFFER].gst) {
                GstQuery *query = NULL;
@@ -2955,7 +3612,7 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
                        if (gst_element_query_position(mainbin[MMPLAYER_M_SRC].gst,
                                GST_FORMAT_BYTES, &buffered_total)) {
                                LOGD("buffered_total %"G_GINT64_FORMAT, buffered_total);
-                               stop_per = 100 * buffered_total / content_size_bytes;
+                               end_per = 100 * buffered_total / content_size_bytes;
                        }
                } else {
                        /* GST_BUFFERING_TIMESHIFT or GST_BUFFERING_DOWNLOAD */
@@ -2973,16 +3630,17 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
 
                                        buffered_total += (stop_byte - start_byte);
                                }
-                       } else
-                               stop_per = BUFFERING_MAX_PER;
+                       } else {
+                               end_per = BUFFERING_MAX_PER;
+                       }
                }
                gst_query_unref(query);
        }
 
-       if (stop_per == DEFAULT_PER_VALUE) {
+       if (end_per == DEFAULT_PER_VALUE) {
                guint dur_sec = (guint)(content_size_time/GST_SECOND);
                if (dur_sec > 0) {
-                       guint avg_byterate = (guint)(content_size_bytes/dur_sec);
+                       guint avg_byterate = (guint)(content_size_bytes / dur_sec);
 
                        /* buffered size info from multiqueue */
                        if (mainbin[MMPLAYER_M_DEMUXED_S_BUFFER].gst) {
@@ -2994,23 +3652,317 @@ int __mmplayer_gst_get_buffer_position(mm_player_t* player, int format, unsigned
                        }
 
                        if (avg_byterate > 0)
-                               buffered_sec = (gint)(ceil((gdouble)buffered_total/(gdouble)avg_byterate));
+                               buffered_sec = (gint)(ceil((gdouble)buffered_total / (gdouble)avg_byterate));
                        else if (player->total_maximum_bitrate > 0)
-                               buffered_sec = (gint)(ceil((gdouble)GET_BIT_FROM_BYTE(buffered_total)/(gdouble)player->total_maximum_bitrate));
+                               buffered_sec = (gint)(ceil((gdouble)GET_BIT_FROM_BYTE(buffered_total) / (gdouble)player->total_maximum_bitrate));
                        else if (player->total_bitrate > 0)
-                               buffered_sec = (gint)(ceil((gdouble)GET_BIT_FROM_BYTE(buffered_total)/(gdouble)player->total_bitrate));
+                               buffered_sec = (gint)(ceil((gdouble)GET_BIT_FROM_BYTE(buffered_total) / (gdouble)player->total_bitrate));
 
                        if (buffered_sec >= 0)
-                               stop_per = start_per +(gint)(ceil)(100*(gdouble)buffered_sec/(gdouble)dur_sec);
+                               end_per = start_per + (gint)(ceil)(100 * (gdouble)buffered_sec / (gdouble)dur_sec);
                }
        }
 
        *start_pos = CHECK_PERCENT_VALUE(start_per, 0, 100);
-       *stop_pos = CHECK_PERCENT_VALUE(stop_per, *start_pos, 100);
+       *end_pos = CHECK_PERCENT_VALUE(end_per, *start_pos, 100);
+
+       LOGD("buffered info: %"G_GINT64_FORMAT" bytes, %d sec, per %d~%d",
+               buffered_total, buffered_sec, *start_pos, *end_pos);
+
+       return MM_ERROR_NONE;
+}
+
+GstElement *
+__mmplayer_gst_create_source(mm_player_t *player)
+{
+       GstElement *element = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline &&
+                               player->pipeline->mainbin, NULL);
+
+       /* setup source for gapless play */
+       switch (player->profile.uri_type) {
+       /* file source */
+       case MM_PLAYER_URI_TYPE_FILE:
+               element = __mmplayer_gst_make_file_src(player);
+               break;
+       case MM_PLAYER_URI_TYPE_URL_HTTP:
+               element = __mmplayer_gst_make_http_src(player);
+               break;
+       default:
+               LOGE("not support uri type %d", player->profile.uri_type);
+               break;
+       }
+
+       if (!element) {
+               LOGE("failed to create source element");
+               return NULL;
+       }
+
+       MMPLAYER_FLEAVE();
+       return element;
+}
+
+int
+__mmplayer_gst_build_es_pipeline(mm_player_t *player)
+{
+       MMHandleType attrs = 0;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline &&
+                               player->pipeline->mainbin, MM_ERROR_PLAYER_NOT_INITIALIZED);
+
+       /* get profile attribute */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (!attrs) {
+               LOGE("failed to get content attribute");
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       SECURE_LOGD("uri : %s", player->profile.uri);
+
+       mm_attrs_set_int_by_name(attrs, "profile_prepare_async", TRUE);
+       if (mm_attrs_commit_all(attrs)) /* return -1 if error */
+               LOGE("failed to commit");
+
+       if (player->v_stream_caps && !__mmplayer_gst_create_es_path(player, MM_PLAYER_STREAM_TYPE_VIDEO, player->v_stream_caps))
+               return MM_ERROR_PLAYER_INTERNAL;
+
+       if (player->a_stream_caps && !__mmplayer_gst_create_es_path(player, MM_PLAYER_STREAM_TYPE_AUDIO, player->a_stream_caps))
+               return MM_ERROR_PLAYER_INTERNAL;
+
+       if (player->s_stream_caps && !__mmplayer_gst_create_es_path(player, MM_PLAYER_STREAM_TYPE_TEXT, player->s_stream_caps))
+               return MM_ERROR_PLAYER_INTERNAL;
+
+       MMPLAYER_FLEAVE();
+       return MM_ERROR_NONE;
+}
+
+int
+__mmplayer_gst_build_pipeline(mm_player_t *player)
+{
+       MMPlayerGstElement *mainbin = NULL;
+       GstElement *src_elem = NULL;
+       GstElement *autoplug_elem = NULL;
+       GList *element_bucket = NULL;
+       MMHandleType attrs = 0;
+       enum MainElementID autoplug_elem_id = MMPLAYER_M_NUM;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline &&
+                               player->pipeline->mainbin, MM_ERROR_PLAYER_NOT_INITIALIZED);
+
+       /* get profile attribute */
+       attrs = MMPLAYER_GET_ATTRS(player);
+       if (!attrs) {
+               LOGE("failed to get content attribute");
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       LOGD("uri type %d", player->profile.uri_type);
+
+       /* create source element */
+       switch (player->profile.uri_type) {
+       case MM_PLAYER_URI_TYPE_URL_RTSP:
+               src_elem = __mmplayer_gst_make_rtsp_src(player);
+               break;
+       case MM_PLAYER_URI_TYPE_URL_HTTP:
+               src_elem = __mmplayer_gst_make_http_src(player);
+               break;
+       case MM_PLAYER_URI_TYPE_FILE:
+               src_elem = __mmplayer_gst_make_file_src(player);
+               break;
+       case MM_PLAYER_URI_TYPE_SS:
+               {
+                       gint http_timeout = DEFAULT_HTTP_TIMEOUT;
+                       src_elem = gst_element_factory_make("souphttpsrc", "http streaming source");
+                       if (!src_elem) {
+                               LOGE("failed to create http streaming source element[%s]", player->ini.httpsrc_element);
+                               break;
+                       }
+
+                       if (player->ini.http_timeout != DEFAULT_HTTP_TIMEOUT) {
+                               LOGD("get timeout from ini");
+                               http_timeout = player->ini.http_timeout;
+                       }
+
+                       /* setting property to streaming source */
+                       g_object_set(G_OBJECT(src_elem), "location", player->profile.uri, "timeout", http_timeout, NULL);
+               }
+               break;
+       case MM_PLAYER_URI_TYPE_MEM:
+               {
+                       GstAppStreamType stream_type = GST_APP_STREAM_TYPE_RANDOM_ACCESS;
+
+                       src_elem = gst_element_factory_make("appsrc", "mem-source");
+                       if (!src_elem) {
+                               LOGE("failed to create appsrc element");
+                               break;
+                       }
+
+                       g_object_set(src_elem, "stream-type", stream_type,
+                               "size", (gint64)player->profile.input_mem.len, "blocksize", 20480, NULL);
+
+                       __mmplayer_add_signal_connection(player, G_OBJECT(src_elem), MM_PLAYER_SIGNAL_TYPE_OTHERS, "seek-data",
+                                                                                       G_CALLBACK(__mmplayer_gst_appsrc_seek_data_mem), (gpointer)&player->profile.input_mem);
+                       __mmplayer_add_signal_connection(player, G_OBJECT(src_elem), MM_PLAYER_SIGNAL_TYPE_OTHERS, "need-data",
+                                                                                       G_CALLBACK(__mmplayer_gst_appsrc_feed_data_mem), (gpointer)&player->profile.input_mem);
+               }
+               break;
+       default:
+               LOGE("not support uri type");
+               break;
+       }
+
+       if (!src_elem) {
+               LOGE("failed to create source element");
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       mainbin = player->pipeline->mainbin;
+
+       /* take source element */
+       LOGD("source elem is created %s", GST_ELEMENT_NAME(src_elem));
+
+       mainbin[MMPLAYER_M_SRC].id = MMPLAYER_M_SRC;
+       mainbin[MMPLAYER_M_SRC].gst = src_elem;
+       element_bucket = g_list_append(element_bucket, &mainbin[MMPLAYER_M_SRC]);
+
+       /* create next element for auto-plugging */
+       if (MMPLAYER_IS_HTTP_STREAMING(player)) {
+               autoplug_elem_id = MMPLAYER_M_TYPEFIND;
+               autoplug_elem = gst_element_factory_make("typefind", "typefinder");
+               if (!autoplug_elem) {
+                       LOGE("failed to create typefind element");
+                       goto ERROR;
+               }
+
+               __mmplayer_add_signal_connection(player, G_OBJECT(autoplug_elem), MM_PLAYER_SIGNAL_TYPE_AUTOPLUG, "have-type",
+                                                                       G_CALLBACK(__mmplayer_typefind_have_type), (gpointer)player);
+       } else if (!MMPLAYER_IS_RTSP_STREAMING(player)) {
+               autoplug_elem_id = MMPLAYER_M_AUTOPLUG;
+               autoplug_elem = __mmplayer_gst_make_decodebin(player);
+               if (!autoplug_elem) {
+                       LOGE("failed to create decodebin");
+                       goto ERROR;
+               }
+
+               /* default size of mq in decodebin is 2M
+                * but it can cause blocking issue during seeking depends on content. */
+               g_object_set(G_OBJECT(autoplug_elem), "max-size-bytes", (5 * 1024 * 1024), NULL);
+       }
+
+       if (autoplug_elem) {
+               LOGD("autoplug elem is created %s", GST_ELEMENT_NAME(autoplug_elem));
+               mainbin[autoplug_elem_id].id = autoplug_elem_id;
+               mainbin[autoplug_elem_id].gst = autoplug_elem;
+
+               element_bucket = g_list_append(element_bucket, &mainbin[autoplug_elem_id]);
+       }
+
+       /* add elements to pipeline */
+       if (!__mmplayer_gst_element_add_bucket_to_bin(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), element_bucket)) {
+               LOGE("failed to add elements to pipeline");
+               goto ERROR;
+       }
+
+       /* linking elements in the bucket by added order. */
+       if (__mmplayer_gst_element_link_bucket(element_bucket) == -1) {
+               LOGE("failed to link some elements");
+               goto ERROR;
+       }
+
+       /* FIXME: need to check whether this is required or not. */
+       if (MMPLAYER_IS_HTTP_STREAMING(player) || MMPLAYER_IS_RTSP_STREAMING(player)) {
+               /* create fakesink element for keeping the pipeline state PAUSED. if needed */
+               mainbin[MMPLAYER_M_SRC_FAKESINK].id = MMPLAYER_M_SRC_FAKESINK;
+               mainbin[MMPLAYER_M_SRC_FAKESINK].gst = gst_element_factory_make("fakesink", "state-holder");
 
-       LOGD("buffered info: %"G_GINT64_FORMAT" bytes, %d sec, per %lu~%lu\n",
-               buffered_total, buffered_sec, *start_pos, *stop_pos);
+               if (!mainbin[MMPLAYER_M_SRC_FAKESINK].gst) {
+                       LOGE("failed to create fakesink");
+                       goto ERROR;
+               }
+               GST_OBJECT_FLAG_UNSET(mainbin[MMPLAYER_M_SRC_FAKESINK].gst, GST_ELEMENT_FLAG_SINK);
+
+               /* take ownership of fakesink. we are reusing it */
+               gst_object_ref(mainbin[MMPLAYER_M_SRC_FAKESINK].gst);
+
+               if (!gst_bin_add(GST_BIN(mainbin[MMPLAYER_M_PIPE].gst), mainbin[MMPLAYER_M_SRC_FAKESINK].gst)) {
+                       LOGE("failed to add fakesink to bin");
+                       gst_object_unref(mainbin[MMPLAYER_M_SRC_FAKESINK].gst);
+                       goto ERROR;
+               }
+       }
+
+       g_list_free(element_bucket);
 
+       MMPLAYER_FLEAVE();
        return MM_ERROR_NONE;
+
+ERROR:
+       g_list_free(element_bucket);
+
+       if (mainbin[MMPLAYER_M_SRC].gst)
+               gst_object_unref(GST_OBJECT(mainbin[MMPLAYER_M_SRC].gst));
+
+       if (mainbin[autoplug_elem_id].gst)
+               gst_object_unref(GST_OBJECT(mainbin[autoplug_elem_id].gst));
+
+       if (mainbin[MMPLAYER_M_SRC_FAKESINK].gst)
+               gst_object_unref(GST_OBJECT(mainbin[MMPLAYER_M_SRC_FAKESINK].gst));
+
+       mainbin[MMPLAYER_M_SRC].gst = NULL;
+       mainbin[autoplug_elem_id].gst = NULL;
+       mainbin[MMPLAYER_M_SRC_FAKESINK].gst = NULL;
+
+       return MM_ERROR_PLAYER_INTERNAL;
 }
 
+int
+__mmplayer_gst_add_bus_watch(mm_player_t *player)
+{
+       GstBus  *bus = NULL;
+       MMPlayerGstElement *mainbin = NULL;
+
+       MMPLAYER_FENTER();
+       MMPLAYER_RETURN_VAL_IF_FAIL(player && player->pipeline &&
+                               player->pipeline->mainbin, MM_ERROR_PLAYER_NOT_INITIALIZED);
+
+       mainbin = player->pipeline->mainbin;
+
+       /* connect bus callback */
+       bus = gst_pipeline_get_bus(GST_PIPELINE(mainbin[MMPLAYER_M_PIPE].gst));
+       if (!bus) {
+               LOGE("cannot get bus from pipeline");
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       player->bus_watcher = gst_bus_add_watch(bus, (GstBusFunc)__mmplayer_gst_msg_push, player);
+       player->context.thread_default = g_main_context_get_thread_default();
+       if (player->context.thread_default == NULL) {
+               player->context.thread_default = g_main_context_default();
+               LOGD("thread-default context is the global default context");
+       }
+       LOGW("bus watcher thread context = %p, watcher : %d", player->context.thread_default, player->bus_watcher);
+
+       /* set sync handler to get tag synchronously */
+       gst_bus_set_sync_handler(bus, __mmplayer_gst_bus_sync_callback, player, NULL);
+       gst_object_unref(GST_OBJECT(bus));
+
+       /* create gst bus_msb_cb thread */
+       g_mutex_init(&player->bus_msg_thread_mutex);
+       g_cond_init(&player->bus_msg_thread_cond);
+       player->bus_msg_thread_exit = FALSE;
+       player->bus_msg_thread =
+               g_thread_try_new("gst_bus_msg_thread", __mmplayer_gst_bus_msg_thread, (gpointer)player, NULL);
+       if (!player->bus_msg_thread) {
+               LOGE("failed to create gst BUS msg thread");
+               g_mutex_clear(&player->bus_msg_thread_mutex);
+               g_cond_clear(&player->bus_msg_thread_cond);
+               return MM_ERROR_PLAYER_INTERNAL;
+       }
+
+       MMPLAYER_FLEAVE();
+       return MM_ERROR_NONE;
+}