4 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: JongHyuk Choi <jhchoi.choi@samsung.com>, YeJin Cho <cho.yejin@samsung.com>,
7 * Seungbae Shin <seungbae.shin@samsung.com>, YoungHwan An <younghwan_.an@samsung.com>
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
24 #include "mm_player_utils.h"
25 #include "mm_player_streaming.h"
30 gint byte_in_rate; // byte
31 gint byte_out_rate; // byte
32 gdouble time_rate; // second
33 guint buffer_criteria; // byte
34 }streaming_bitrate_info_t;
37 gint64 position; // ns
38 gint64 duration; // ns
39 guint64 content_size; // bytes
40 }streaming_content_info_t;
43 guint buffering_bytes; // bytes
44 gdouble buffering_time; // second
47 }streaming_buffer_info_t;
49 static void streaming_check_buffer_percent(gdouble in_low, gdouble in_high, gdouble *out_low, gdouble *out_high);
50 static void streaming_set_buffer_percent(mm_player_streaming_t* streamer, BufferType type, gdouble low_percent, gdouble high_percent_byte, gdouble high_percent_time);
51 static void streaming_set_queue2_queue_type (mm_player_streaming_t* streamer, gboolean use_file, gchar * file_path, guint64 content_size);
52 static void streaming_set_buffer_size(mm_player_streaming_t* streamer, BufferType type, guint buffering_bytes, gdouble buffering_time);
53 static void streaming_update_buffering_status(mm_player_streaming_t* streamer, GstMessage *buffering_msg, gint64 position);
54 static void streaming_get_current_bitrate_info( mm_player_streaming_t* streamer,
55 GstMessage *buffering_msg,
56 streaming_content_info_t content_info,
57 streaming_bitrate_info_t* bitrate_info);
59 streaming_handle_fixed_buffering_mode( mm_player_streaming_t* streamer,
61 gdouble fixed_buffering_time,
62 streaming_buffer_info_t* buffer_info);
64 streaming_handle_adaptive_buffering_mode( mm_player_streaming_t* streamer,
65 streaming_content_info_t content_info,
66 streaming_bitrate_info_t bitrate_info,
67 streaming_buffer_info_t* buffer_info,
68 gint expected_play_time);
70 streaming_update_buffer_setting ( mm_player_streaming_t* streamer,
71 GstMessage *buffering_msg,
76 mm_player_streaming_t *
77 __mm_player_streaming_create (void)
79 mm_player_streaming_t *streamer = NULL;
83 streamer = (mm_player_streaming_t *) malloc (sizeof (mm_player_streaming_t));
86 debug_error ("fail to create streaming player handle..\n");
90 memset(streamer, 0, sizeof(mm_player_streaming_t));
98 streaming_buffer_initialize (streaming_buffer_t* buffer_handle, gboolean buffer_init)
101 buffer_handle->buffer = NULL;
103 buffer_handle->buffering_bytes = DEFAULT_BUFFER_SIZE_BYTES;
104 buffer_handle->buffering_time = DEFAULT_BUFFERING_TIME;
105 buffer_handle->buffer_low_percent = DEFAULT_BUFFER_LOW_PERCENT;
106 buffer_handle->buffer_high_percent = DEFAULT_BUFFER_HIGH_PERCENT;
107 buffer_handle->is_live = FALSE;
111 void __mm_player_streaming_initialize (mm_player_streaming_t* streamer)
115 streamer->streaming_buffer_type = BUFFER_TYPE_DEFAULT; // multi-queue
117 streaming_buffer_initialize(&(streamer->buffer_handle[BUFFER_TYPE_MUXED]), TRUE);
118 streaming_buffer_initialize(&(streamer->buffer_handle[BUFFER_TYPE_DEMUXED]), TRUE);
120 streamer->buffering_req.mode = MM_PLAYER_BUFFERING_MODE_ADAPTIVE;
121 streamer->buffering_req.is_pre_buffering = FALSE;
122 streamer->buffering_req.initial_second = 0;
123 streamer->buffering_req.runtime_second = 0;
125 streamer->default_val.buffering_monitor = FALSE;
126 streamer->default_val.buffering_time = DEFAULT_BUFFERING_TIME;
128 streamer->buffer_avg_bitrate = 0;
129 streamer->buffer_max_bitrate = 0;
130 streamer->need_update = FALSE;
131 streamer->need_sync = FALSE;
133 streamer->is_buffering = FALSE;
134 streamer->is_buffering_done = FALSE;
135 streamer->is_adaptive_streaming = FALSE;
136 streamer->buffering_percent = -1;
142 void __mm_player_streaming_deinitialize (mm_player_streaming_t* streamer)
145 return_if_fail(streamer);
147 streamer->streaming_buffer_type = BUFFER_TYPE_DEFAULT; // multi-queue
149 streaming_buffer_initialize(&(streamer->buffer_handle[BUFFER_TYPE_MUXED]), FALSE);
150 streaming_buffer_initialize(&(streamer->buffer_handle[BUFFER_TYPE_DEMUXED]), FALSE);
152 streamer->buffering_req.mode = MM_PLAYER_BUFFERING_MODE_ADAPTIVE;
153 streamer->buffering_req.is_pre_buffering = FALSE;
154 streamer->buffering_req.initial_second = 0;
155 streamer->buffering_req.runtime_second = 0;
157 streamer->default_val.buffering_monitor = FALSE;
158 streamer->default_val.buffering_time = DEFAULT_BUFFERING_TIME;
160 streamer->buffer_avg_bitrate = 0;
161 streamer->buffer_max_bitrate = 0;
162 streamer->need_update = FALSE;
163 streamer->need_sync = FALSE;
165 streamer->is_buffering = FALSE;
166 streamer->is_buffering_done = FALSE;
167 streamer->is_adaptive_streaming = FALSE;
169 streamer->buffering_percent = -1;
175 void __mm_player_streaming_destroy (mm_player_streaming_t* streamer)
190 void __mm_player_streaming_set_content_bitrate(mm_player_streaming_t* streamer, guint max_bitrate, guint avg_bitrate)
194 return_if_fail(streamer);
196 /* Note : Update buffering criterion bytes
197 * 1. maximum bitrate is considered first.
198 * 2. average bitrage * 3 is next.
199 * 3. if there are no updated bitrate, use default buffering limit.
201 if (max_bitrate > 0 && streamer->buffer_max_bitrate != max_bitrate)
203 debug_log("set maximum bitrate(%dbps).\n", max_bitrate);
204 streamer->buffer_max_bitrate = max_bitrate;
205 if (streamer->buffering_req.is_pre_buffering == FALSE)
207 streamer->need_update = TRUE;
211 debug_log("pre-buffering...\n");
213 if (IS_MUXED_BUFFERING_MODE(streamer))
214 streaming_update_buffer_setting(streamer, NULL, 0, 0, 0);
218 if (avg_bitrate > 0 && streamer->buffer_avg_bitrate != avg_bitrate)
220 debug_log("set averate bitrate(%dbps).\n", avg_bitrate);
221 streamer->buffer_avg_bitrate = avg_bitrate;
223 if (streamer->buffering_req.is_pre_buffering == FALSE)
225 streamer->need_update = TRUE;
229 debug_log("pre-buffering...\n");
231 if (IS_MUXED_BUFFERING_MODE(streamer))
232 streaming_update_buffer_setting(streamer, NULL, 0, 0, 0);
241 streaming_check_buffer_percent(gdouble in_low, gdouble in_high, gdouble *out_low, gdouble *out_high)
243 gdouble buffer_low_percent = DEFAULT_BUFFER_LOW_PERCENT;
244 gdouble buffer_high_percent = DEFAULT_BUFFER_HIGH_PERCENT;
248 return_if_fail(out_low && out_high);
250 if (in_low <= MIN_BUFFER_PERCENT || in_low >= MAX_BUFFER_PERCENT)
252 debug_warning("buffer low percent is out of range. use defaut value.");
256 buffer_low_percent = in_low;
259 if (in_high <= MIN_BUFFER_PERCENT || in_high >= MAX_BUFFER_PERCENT)
261 debug_warning("buffer high percent is out of range. use defaut value.");
265 buffer_high_percent = in_high;
268 if (buffer_high_percent <= buffer_low_percent)
269 buffer_high_percent = buffer_low_percent + 1.0;
271 debug_log("set buffer percent to %2.3f ~ %2.3f.", buffer_low_percent, buffer_high_percent);
273 *out_low = buffer_low_percent;
274 *out_high = buffer_high_percent;
278 streaming_set_buffer_percent( mm_player_streaming_t* streamer,
281 gdouble high_percent_byte,
282 gdouble high_percent_time)
284 gdouble confirmed_low = DEFAULT_BUFFER_LOW_PERCENT;
285 gdouble confirmed_high = DEFAULT_BUFFER_HIGH_PERCENT;
286 gdouble high_percent = 0.0;
288 streaming_buffer_t* buffer_handle = NULL;
289 gchar* factory_name = NULL;
292 return_if_fail(streamer);
293 return_if_fail(type < BUFFER_TYPE_MAX);
295 buffer_handle = &(streamer->buffer_handle[type]);
296 if (!(buffer_handle && buffer_handle->buffer))
298 debug_error("buffer_handle->buffer is NULL!");
302 factory_name = GST_OBJECT_NAME(gst_element_get_factory(buffer_handle->buffer));
306 debug_error("Fail to get factory name!");
310 if (type == BUFFER_TYPE_MUXED)
311 high_percent = high_percent_byte;
313 high_percent = MAX(high_percent_time, high_percent_byte);
315 streaming_check_buffer_percent(low_percent, high_percent, &confirmed_low, &confirmed_high);
317 /* if use-buffering is disabled, this settings do not have any meaning. */
318 debug_log("target buffer elem : %s (%2.3f ~ %2.3f)",
319 GST_ELEMENT_NAME(buffer_handle->buffer), confirmed_low, confirmed_high);
321 if ((confirmed_low == DEFAULT_BUFFER_LOW_PERCENT) ||
322 (buffer_handle->buffer_low_percent != confirmed_low))
324 g_object_set (G_OBJECT(buffer_handle->buffer), "low-percent", (gint)confirmed_low, NULL);
327 if ((confirmed_high == DEFAULT_BUFFER_HIGH_PERCENT) ||
328 (buffer_handle->buffer_high_percent != confirmed_high))
330 g_object_set (G_OBJECT(buffer_handle->buffer), "high-percent", (gint)confirmed_high, NULL);
333 buffer_handle->buffer_low_percent = confirmed_low;
334 buffer_handle->buffer_high_percent = confirmed_high;
341 streaming_set_queue2_queue_type (mm_player_streaming_t* streamer, gboolean use_file, gchar * file_path, guint64 content_size)
343 streaming_buffer_t* buffer_handle = NULL;
344 guint64 storage_available_size = 0L; //bytes
345 guint64 file_buffer_size = 0L; //bytes
346 gchar file_buffer_name[MM_MAX_URL_LEN] = {0};
347 struct statfs buf = {0};
348 gchar* factory_name = NULL;
351 return_if_fail(streamer);
352 return_if_fail(streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer);
354 buffer_handle = &(streamer->buffer_handle[BUFFER_TYPE_MUXED]);
356 if (!(buffer_handle && buffer_handle->buffer))
358 debug_error("buffer_handle->buffer is NULL!");
362 factory_name = GST_OBJECT_NAME(gst_element_get_factory(buffer_handle->buffer));
366 debug_error("Fail to get factory name!");
370 debug_log("target buffer elem : %s", GST_ELEMENT_NAME(buffer_handle->buffer));
372 if (!g_strrstr(factory_name, "queue2"))
374 debug_log("only queue2 can use file buffer. not decodebin2 or multiQ\n");
378 if ((!use_file) || (!g_strrstr(factory_name, "queue2")))
380 debug_log("use memory for buffering. streaming is played on push-based. \n"
381 "buffering position would not be updated.\n"
382 "buffered data would be flushed after played.\n"
383 "seeking and getting duration could be failed due to file format.");
387 debug_log("[Queue2] use file for buffering. streaming is played on pull-based. \n");
389 if (!file_path || strlen(file_path) <= 0)
390 file_path = g_strdup(DEFAULT_FILE_BUFFER_PATH);
392 g_snprintf(file_buffer_name, MM_MAX_URL_LEN, "%s/XXXXXX", file_path);
393 secure_debug_log("[Queue2] the buffering file name is %s.\n", file_buffer_name);
395 if (statfs((const char *)file_path, &buf) < 0)
397 debug_warning ("[Queue2] fail to get availabe storage capacity. just use file buffer.\n");
398 file_buffer_size = 0L;
402 storage_available_size = (guint64)buf.f_bavail * (guint64)buf.f_bsize; //bytes
404 debug_log ("[Queue2] the number of available blocks : %"G_GUINT64_FORMAT
405 ", the block size is %"G_GUINT64_FORMAT".\n",
406 (guint64)buf.f_bavail, (guint64)buf.f_bsize);
408 debug_log ("[Queue2] calculated availabe storage size is %"
409 G_GUINT64_FORMAT" Bytes.\n", storage_available_size);
411 if (content_size <= 0 || content_size >= storage_available_size)
412 file_buffer_size = storage_available_size;
414 file_buffer_size = 0L;
417 if (file_buffer_size>0)
418 debug_log("[Queue2] use file ring buffer for buffering.");
420 g_object_set (G_OBJECT(buffer_handle->buffer), "temp-template", file_buffer_name, NULL);
421 g_object_set (G_OBJECT(buffer_handle->buffer), "file-buffer-max-size", file_buffer_size, NULL);
428 streaming_set_buffer_size(mm_player_streaming_t* streamer, BufferType type, guint buffering_bytes, gdouble buffering_time)
430 streaming_buffer_t* buffer_handle = NULL;
434 return_if_fail(streamer);
435 return_if_fail(buffering_bytes > 0);
436 return_if_fail(type < BUFFER_TYPE_MAX);
438 buffer_handle = &(streamer->buffer_handle[type]);
440 if (buffer_handle && buffer_handle->buffer)
442 if (g_strrstr(GST_ELEMENT_NAME(buffer_handle->buffer), "multiqueue"))
444 if (buffering_time <= 0)
445 buffering_time = GET_CURRENT_BUFFERING_TIME(buffer_handle);
447 g_object_set (G_OBJECT(buffer_handle->buffer),
448 "max-size-bytes", GET_MAX_BUFFER_BYTES(streamer), /* mq size is fixed, control it with high/low percent value*/
449 "max-size-time", ((guint)ceil(buffering_time) * GST_SECOND),
450 "max-size-buffers", 0, NULL); /* disable */
452 buffer_handle->buffering_time = buffering_time;
453 buffer_handle->buffering_bytes = GET_MAX_BUFFER_BYTES(streamer);
455 debug_log("max-size-time : %f", buffering_time);
459 if (buffer_handle->is_live)
461 g_object_set (G_OBJECT(buffer_handle->buffer),
462 "max-size-bytes", buffering_bytes,
463 "max-size-time", (guint64)(buffering_time*GST_SECOND),
464 "max-size-buffers", 0,
465 "use-rate-estimate", TRUE, NULL);
469 g_object_set (G_OBJECT(buffer_handle->buffer),
470 "max-size-bytes", buffering_bytes,
471 "max-size-time", (guint64)0,
472 "max-size-buffers", 0,
473 "use-rate-estimate", FALSE, NULL);
476 buffer_handle->buffering_bytes = buffering_bytes;
477 buffer_handle->buffering_time = buffering_time;
479 debug_log("max-size-bytes : %d", buffering_bytes);
487 void __mm_player_streaming_set_queue2( mm_player_streaming_t* streamer,
489 gboolean use_buffering,
490 guint buffering_bytes,
491 gdouble buffering_time,
493 gdouble high_percent,
496 guint64 content_size)
499 return_if_fail(streamer);
503 debug_log("USE-BUFFERING : %s", (use_buffering)?"OOO":"XXX");
505 streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer = buffer;
509 streamer->streaming_buffer_type = BUFFER_TYPE_MUXED;
511 if (content_size > 0)
513 if (streamer->buffering_req.initial_second > 0)
514 streamer->buffering_req.is_pre_buffering = TRUE;
516 streamer->buffering_req.initial_second = (gint)ceil(buffering_time);
520 debug_log("live streaming without mq");
522 streamer->buffer_handle[BUFFER_TYPE_MUXED].is_live = TRUE;
523 streamer->buffering_req.initial_second = buffering_time = DEFAULT_BUFFERING_TIME;
527 g_object_set ( G_OBJECT (streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer), "use-buffering", use_buffering, NULL );
530 streaming_set_buffer_size (streamer, BUFFER_TYPE_MUXED, buffering_bytes, buffering_time);
531 streaming_set_buffer_percent (streamer, BUFFER_TYPE_MUXED, low_percent, high_percent, 0);
532 streaming_set_queue2_queue_type (streamer, use_file, file_path, content_size);
538 void __mm_player_streaming_sync_property(mm_player_streaming_t* streamer, GstElement* decodebin)
540 streaming_buffer_t* buffer_handle = NULL;
544 return_if_fail ( streamer && decodebin );
546 buffer_handle = &(streamer->buffer_handle[BUFFER_TYPE_DEMUXED]);
548 if ((streamer->need_sync) && (streamer->streaming_buffer_type == BUFFER_TYPE_DEMUXED))
550 g_object_set (G_OBJECT(decodebin),
551 "max-size-bytes", buffer_handle->buffering_bytes,
552 "max-size-time", (guint64)(ceil(buffer_handle->buffering_time) * GST_SECOND),
553 "low-percent", (gint)buffer_handle->buffer_low_percent,
554 "high-percent", (gint)buffer_handle->buffer_high_percent, NULL);
558 streamer->need_sync = FALSE;
561 void __mm_player_streaming_set_multiqueue( mm_player_streaming_t* streamer,
563 gboolean use_buffering,
564 gdouble buffering_time,
566 gdouble high_percent)
568 streaming_buffer_t* buffer_handle = NULL;
569 gdouble pre_buffering_time = 0.0;
572 return_if_fail(streamer);
574 buffer_handle = &(streamer->buffer_handle[BUFFER_TYPE_DEMUXED]);
575 pre_buffering_time = (gdouble)streamer->buffering_req.initial_second;
579 buffer_handle->buffer = buffer;
583 streamer->streaming_buffer_type = BUFFER_TYPE_DEMUXED;
585 // during prebuffering by requirement, buffer setting should not be changed.
586 if (pre_buffering_time > 0)
587 streamer->buffering_req.is_pre_buffering = TRUE;
590 g_object_set ( G_OBJECT (buffer_handle->buffer), "use-buffering", use_buffering, NULL );
593 debug_log ("pre_buffering: %2.2f, during playing: %2.2f\n", pre_buffering_time, buffering_time);
595 if (pre_buffering_time <= 0.0)
597 pre_buffering_time = GET_DEFAULT_PLAYING_TIME(streamer);
598 streamer->buffering_req.initial_second = (gint)ceil(buffering_time);
601 high_percent = (pre_buffering_time * 100) / GET_MAX_BUFFER_TIME(streamer);
602 debug_log ("high_percent %2.3f %%\n", high_percent);
604 streaming_set_buffer_size (streamer, BUFFER_TYPE_DEMUXED, GET_MAX_BUFFER_BYTES(streamer), GET_MAX_BUFFER_TIME(streamer));
605 streaming_set_buffer_percent (streamer, BUFFER_TYPE_DEMUXED, low_percent, 0, high_percent);
607 streamer->need_sync = TRUE;
614 streaming_get_current_bitrate_info( mm_player_streaming_t* streamer,
615 GstMessage *buffering_msg,
616 streaming_content_info_t content_info,
617 streaming_bitrate_info_t* bitrate_info)
620 GstQuery *query = NULL;
621 GstBufferingMode mode = GST_BUFFERING_STREAM;
624 gint64 buffering_left = -1;
626 guint buffer_criteria = 0;
627 guint estimated_content_bitrate = 0;
629 gdouble buffer_buffering_time = DEFAULT_BUFFERING_TIME;
633 return_if_fail(streamer);
634 return_if_fail(bitrate_info);
636 if ((buffering_msg == NULL) ||
637 ((streamer->buffer_handle[BUFFER_TYPE_DEMUXED].buffer != NULL) &&
638 (streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer != NULL) &&
639 (buffering_msg->src == (GstObject *)streamer->buffer_handle[BUFFER_TYPE_DEMUXED].buffer)))
641 query = gst_query_new_buffering (GST_FORMAT_PERCENT);
643 if (gst_element_query ((streamer->buffer_handle[BUFFER_TYPE_MUXED].buffer), query))
645 gst_query_parse_buffering_stats (query, &mode, &in_rate, &out_rate, &buffering_left);
648 gst_query_unref (query);
652 gst_message_parse_buffering_stats (buffering_msg, &mode, &in_rate, &out_rate, &buffering_left);
655 debug_log ("Streaming Info : in %d, out %d, left %lld\n", in_rate, out_rate, buffering_left);
657 if ((content_info.content_size > 0) && (content_info.duration > 0) && ((content_info.duration/GST_SECOND) > 0))
658 estimated_content_bitrate = GET_BIT_FROM_BYTE((guint)(content_info.content_size / (content_info.duration/GST_SECOND)));
660 if (streamer->buffer_max_bitrate > 0)
662 streamer->buffer_max_bitrate = MAX(streamer->buffer_max_bitrate, streamer->buffer_avg_bitrate);
663 streamer->buffer_max_bitrate = MAX(streamer->buffer_max_bitrate, estimated_content_bitrate);
665 buffer_criteria = GET_BYTE_FROM_BIT(streamer->buffer_max_bitrate);
667 if (streamer->buffer_avg_bitrate > estimated_content_bitrate)
668 out_rate = GET_BYTE_FROM_BIT(streamer->buffer_avg_bitrate);
669 else if (estimated_content_bitrate != 0)
670 out_rate = GET_BYTE_FROM_BIT(estimated_content_bitrate);
672 out_rate = GET_BYTE_FROM_BIT(streamer->buffer_max_bitrate/3);
674 debug_log ("(max)content_max_byte_rate %d, byte_out_rate %d\n", buffer_criteria, out_rate);
676 else if (streamer->buffer_avg_bitrate > 0)
678 buffer_criteria = GET_BYTE_FROM_BIT(streamer->buffer_avg_bitrate * 3);
679 out_rate = GET_BYTE_FROM_BIT(MAX(streamer->buffer_avg_bitrate,estimated_content_bitrate));
681 debug_log ("(avg)content_max_byte_rate %d, byte_out_rate %d\n", buffer_criteria, out_rate);
685 debug_warning ("There is no content bitrate information\n");
688 if ((in_rate > 0) && (out_rate > 0))
689 buffer_buffering_time = (gdouble)out_rate / (gdouble)in_rate;
690 else if ((in_rate <= 0) && (out_rate > 0))
691 buffer_buffering_time = MAX_BUFFERING_TIME;
693 buffer_buffering_time = DEFAULT_BUFFERING_TIME;
695 (*bitrate_info).byte_in_rate = in_rate;
696 (*bitrate_info).byte_out_rate = out_rate;
697 (*bitrate_info).time_rate = buffer_buffering_time;
698 (*bitrate_info).buffer_criteria = buffer_criteria;
702 streaming_handle_fixed_buffering_mode( mm_player_streaming_t* streamer,
704 gdouble fixed_buffering_time,
705 streaming_buffer_info_t* buffer_info)
707 streaming_buffer_t* buffer_handle = NULL;
709 guint buffering_bytes = 0;
710 gdouble buffering_time = 0.0;
711 gdouble per_byte = 0.0;
712 gdouble per_time = 0.0;
714 return_if_fail(streamer);
715 return_if_fail(buffer_info);
717 buffer_handle = &(streamer->buffer_handle[streamer->streaming_buffer_type]);
718 buffering_time = fixed_buffering_time;
720 debug_log ("buffering time: %2.2f sec, out rate: %d\n", buffering_time, byte_out_rate);
722 if ((buffering_time > 0) && (byte_out_rate > 0))
724 buffering_bytes = GET_NEW_BUFFERING_BYTE(byte_out_rate * buffering_time);
728 if (buffering_time <= 0)
729 buffering_time = GET_CURRENT_BUFFERING_TIME(buffer_handle);
731 debug_warning ("content bitrate is not updated yet.\n");
732 buffering_bytes = GET_CURRENT_BUFFERING_BYTE(buffer_handle);
735 GET_PERCENT(buffering_time, GET_CURRENT_BUFFERING_TIME(buffer_handle), buffer_handle->buffer_high_percent, per_time);
736 GET_PERCENT(buffering_bytes, GET_CURRENT_BUFFERING_BYTE(buffer_handle), buffer_handle->buffer_high_percent, per_byte);
738 debug_log ("bytes %d, time %f, per_byte %f, per_time %f\n",
739 buffering_bytes, buffering_time, per_byte, per_time);
741 (*buffer_info).buffering_bytes = buffering_bytes;
742 (*buffer_info).buffering_time = buffering_time;
743 (*buffer_info).percent_byte = per_byte;
744 (*buffer_info).percent_time = per_time;
748 streaming_handle_adaptive_buffering_mode( mm_player_streaming_t* streamer,
749 streaming_content_info_t content_info,
750 streaming_bitrate_info_t bitrate_info,
751 streaming_buffer_info_t* buffer_info,
752 gint expected_play_time)
754 streaming_buffer_t* buffer_handle = NULL;
756 gint buffering_bytes = 0;
757 gint adj_buffering_bytes = 0;
758 gdouble buffer_buffering_time = 0.0;
759 gdouble per_byte = 0.0;
760 gdouble per_time = 0.0;
761 gdouble portion = 0.0;
762 gdouble default_buffering_time = 0.0;
764 return_if_fail(streamer);
765 return_if_fail(buffer_info);
767 debug_log ("pos %lld, dur %lld, size %lld, in/out:%d/%d, buffer_criteria:%d, time_rate:%f, need:%d sec\n",
768 content_info.position, content_info.duration, content_info.content_size,
769 bitrate_info.byte_in_rate, bitrate_info.byte_out_rate,
770 bitrate_info.buffer_criteria, bitrate_info.time_rate, expected_play_time);
772 if (((expected_play_time == TO_THE_END) && (content_info.position <= 0)) ||
773 (content_info.duration <= 0) ||
774 (content_info.content_size <= 0))
776 debug_warning ("keep previous setting.\n");
780 if ((bitrate_info.byte_out_rate <= 0) || (bitrate_info.buffer_criteria == 0))
782 debug_warning ("keep previous setting.\n");
786 buffer_handle = &(streamer->buffer_handle[streamer->streaming_buffer_type]);
788 if (bitrate_info.byte_in_rate < bitrate_info.byte_out_rate)
790 if (expected_play_time != TO_THE_END)
791 portion = (double)(expected_play_time * GST_SECOND) / (double)content_info.duration;
793 portion = (1 - (double)content_info.position/(double)content_info.duration);
795 buffering_bytes = GET_NEW_BUFFERING_BYTE(((double)content_info.content_size * portion) \
796 * (1 - (double)bitrate_info.byte_in_rate/(double)bitrate_info.byte_out_rate));
800 /* buffering_bytes will be set as streamer->default_val.buffering_time *
801 * receiving rate is bigger than avg content bitrate
802 * so there is no reason to buffering. if the buffering msg is posted
803 * in-rate or contents bitrate has wrong value. */
804 debug_warning ("don't need to do buffering.\n");
807 if (buffering_bytes > 0)
808 buffer_buffering_time = (gdouble)buffering_bytes / (gdouble)bitrate_info.byte_out_rate;
810 if (content_info.position <= 0)
812 /* if the buffer is filled under 50%, MSL use the original default buffering time.
813 if not, MSL use just 2 sec as a default buffering time. (to reduce initial buffering time) */
814 default_buffering_time = streamer->default_val.buffering_time - (streamer->buffering_percent/50);
818 default_buffering_time = streamer->default_val.buffering_time;
821 if (buffer_buffering_time < default_buffering_time)
823 debug_log ("adjusted time: %2.2f -> %2.2f\n", buffer_buffering_time, default_buffering_time);
824 debug_log ("adjusted bytes : %d or %d or %d\n",
826 (gint)(bitrate_info.byte_out_rate * buffer_buffering_time),
827 (gint)(bitrate_info.buffer_criteria * buffer_buffering_time));
829 if (content_info.position > 0)
831 /* start monitoring the abmormal state */
832 streamer->default_val.buffering_monitor = TRUE;
835 buffer_buffering_time = default_buffering_time;
836 adj_buffering_bytes = GET_NEW_BUFFERING_BYTE(bitrate_info.byte_out_rate * (gint)ceil(buffer_buffering_time));
837 buffering_bytes = MAX(buffering_bytes, adj_buffering_bytes);
840 GET_PERCENT(buffering_bytes, GET_CURRENT_BUFFERING_BYTE(buffer_handle), buffer_handle->buffer_high_percent, per_byte);
841 GET_PERCENT(buffer_buffering_time, GET_CURRENT_BUFFERING_TIME(buffer_handle), buffer_handle->buffer_high_percent, per_time);
843 debug_log ("monitor %d, bytes %d, time %f, per_byte %f, per_time %f\n",
844 streamer->default_val.buffering_monitor,
845 buffering_bytes, buffer_buffering_time, per_byte, per_time);
847 (*buffer_info).buffering_bytes = buffering_bytes;
848 (*buffer_info).buffering_time = buffer_buffering_time;
849 (*buffer_info).percent_byte = per_byte;
850 (*buffer_info).percent_time = per_time;
855 streaming_update_buffer_setting ( mm_player_streaming_t* streamer,
856 GstMessage *buffering_msg, // can be null
857 guint64 content_size,
861 streaming_buffer_t* buffer_handle = NULL;
862 MMPlayerBufferingMode buffering_mode = MM_PLAYER_BUFFERING_MODE_ADAPTIVE;
864 streaming_buffer_info_t buffer_info;
865 streaming_content_info_t content_info;
866 streaming_bitrate_info_t bitrate_info;
868 gdouble low_percent = 0.0;
872 return_if_fail ( streamer );
874 memset(&buffer_info, 0x00, sizeof(streaming_buffer_info_t));
875 memset(&content_info, 0x00, sizeof(streaming_content_info_t));
876 memset(&bitrate_info, 0x00, sizeof(streaming_bitrate_info_t));
878 buffer_handle = &(streamer->buffer_handle[streamer->streaming_buffer_type]);
880 if (streamer->buffering_req.is_pre_buffering == TRUE)
881 buffering_mode = MM_PLAYER_BUFFERING_MODE_FIXED;
883 buffering_mode = streamer->buffering_req.mode;
885 buffer_info.buffering_bytes = buffer_handle->buffering_bytes;
886 buffer_info.buffering_time = buffer_handle->buffering_time;
887 buffer_info.percent_byte = buffer_handle->buffer_high_percent;
888 buffer_info.percent_time = buffer_handle->buffer_high_percent;
890 content_info.position = position;
891 content_info.duration = duration;
892 content_info.content_size = content_size;
894 streaming_get_current_bitrate_info(streamer, buffering_msg, content_info, &bitrate_info);
896 debug_log ("buffering mode %d, new info in_r:%d, out_r:%d, cb:%d, bt:%f\n",
897 buffering_mode, bitrate_info.byte_in_rate, bitrate_info.byte_out_rate,
898 bitrate_info.buffer_criteria, bitrate_info.time_rate);
900 /* calculate buffer low/high percent */
901 low_percent = DEFAULT_BUFFER_LOW_PERCENT;
903 /********************
905 ********************/
907 if (buffering_mode == MM_PLAYER_BUFFERING_MODE_FIXED)
909 gdouble buffering_time = 0.0;
911 if (streamer->buffering_req.is_pre_buffering == TRUE)
912 buffering_time = (gdouble)streamer->buffering_req.initial_second;
914 buffering_time = (gdouble)streamer->buffering_req.runtime_second;
916 streaming_handle_fixed_buffering_mode(streamer, bitrate_info.byte_out_rate, buffering_time, &buffer_info);
919 /***********************************
920 * (2) once mode for samsung link *
921 ***********************************/
922 else if (buffering_mode == MM_PLAYER_BUFFERING_MODE_SLINK)
924 streaming_handle_adaptive_buffering_mode(streamer, content_info, bitrate_info, &buffer_info, TO_THE_END);
927 /*********************************
928 * (3) adaptive mode (default) *
929 *********************************/
932 gint expected_play_time = DEFAULT_PLAYING_TIME;
934 if (streamer->buffering_req.runtime_second > 0)
936 expected_play_time = streamer->buffering_req.runtime_second;
938 else if ((position == 0) && (streamer->is_buffering))
940 expected_play_time = streamer->buffering_req.initial_second;
943 if (expected_play_time <= 0)
944 expected_play_time = DEFAULT_PLAYING_TIME;
946 streaming_handle_adaptive_buffering_mode(streamer, content_info, bitrate_info, &buffer_info, expected_play_time);
948 if (IS_MUXED_BUFFERING_MODE(streamer)) // even if new byte size is smaller than the previous one, time need to be updated.
949 buffer_handle->buffering_time = buffer_info.buffering_time;
952 debug_log ("adj buffer(%d) %d->%d bytes/%2.2f->%2.2f sec\n",
953 streamer->streaming_buffer_type,
954 GET_CURRENT_BUFFERING_BYTE(buffer_handle), buffer_info.buffering_bytes,
955 GET_CURRENT_BUFFERING_TIME(buffer_handle), buffer_info.buffering_time);
957 /* queue2 : bytes, multiqueue : time */
958 if (((GET_CURRENT_BUFFERING_BYTE(buffer_handle) < buffer_info.buffering_bytes) && IS_MUXED_BUFFERING_MODE(streamer)) ||
959 ((GET_CURRENT_BUFFERING_TIME(buffer_handle) < buffer_info.buffering_time) && IS_DEMUXED_BUFFERING_MODE(streamer)))
961 if (duration > 0 && position > 0)
963 gdouble buffering_time_limit = (gdouble)(duration - position)/GST_SECOND;
965 if (buffer_info.buffering_time > buffering_time_limit)
966 buffer_info.buffering_time = buffering_time_limit;
969 streaming_set_buffer_size(streamer, streamer->streaming_buffer_type, buffer_info.buffering_bytes, buffer_info.buffering_time);
972 streaming_set_buffer_percent(streamer, streamer->streaming_buffer_type, low_percent, buffer_info.percent_byte, buffer_info.percent_time);
974 debug_log("buffer setting: size %d, time %f, per %f\n",
975 GET_CURRENT_BUFFERING_BYTE(buffer_handle),
976 GET_CURRENT_BUFFERING_TIME(buffer_handle),
977 buffer_handle->buffer_high_percent);
979 streamer->need_sync = TRUE;
983 streaming_adjust_min_threshold(mm_player_streaming_t* streamer, gint64 position)
985 #define DEFAULT_TIME_PAD 1 /* sec */
986 gint playing_time = 0;
990 return_if_fail(streamer);
992 playing_time = (gint)((position - streamer->default_val.prev_pos) / GST_SECOND);
994 debug_log ("buffering monitor = %s\n", (streamer->default_val.buffering_monitor)?"ON":"OFF");
995 debug_log ("playing_time ( %d sec) = %lld - %lld \n", playing_time, position, streamer->default_val.prev_pos);
996 debug_log ("default time : %2.3f, prev buffering t : %2.3f\n",
997 streamer->default_val.buffering_time, streamer->buffer_handle[streamer->streaming_buffer_type].buffering_time);
999 if ((streamer->default_val.buffering_monitor) && (playing_time <= (gint)streamer->default_val.buffering_time))
1002 time_gap = (gint)(streamer->default_val.buffering_time - DEFAULT_BUFFERING_TIME);
1004 time_gap = DEFAULT_TIME_PAD;
1006 streamer->default_val.buffering_time += time_gap*2;
1007 streamer->default_val.buffering_time = MIN(streamer->default_val.buffering_time, MAX_BUFFERING_TIME);
1011 streamer->default_val.buffering_time = DEFAULT_BUFFERING_TIME;
1014 debug_log ("new default min value %2.3f \n", streamer->default_val.buffering_time);
1016 streamer->default_val.buffering_monitor = FALSE;
1017 streamer->default_val.prev_pos = position;
1021 streaming_update_buffering_status(mm_player_streaming_t* streamer, GstMessage *buffering_msg, gint64 position)
1023 gint buffer_percent = 0;
1024 gboolean increased_per = TRUE;
1028 return_if_fail(streamer);
1029 return_if_fail(buffering_msg);
1031 /* update when buffering has started. */
1032 if ( !streamer->is_buffering )
1034 streamer->is_buffering = TRUE;
1035 streamer->is_buffering_done = FALSE;
1036 streamer->buffering_percent = -1;
1038 if (!streamer->buffering_req.is_pre_buffering)
1040 streamer->need_update = TRUE;
1041 streaming_adjust_min_threshold(streamer, position);
1045 /* update buffer percent */
1046 gst_message_parse_buffering (buffering_msg, &buffer_percent);
1048 if (streamer->buffering_percent < buffer_percent)
1050 debug_log ("[%s] buffering %d%%....\n",
1051 GST_OBJECT_NAME(GST_MESSAGE_SRC(buffering_msg)), buffer_percent);
1052 streamer->buffering_percent = buffer_percent;
1056 increased_per = FALSE;
1059 if ((streamer->buffering_percent == MAX_BUFFER_PERCENT) || (streamer->is_buffering_done == TRUE))
1061 streamer->is_buffering = FALSE;
1062 streamer->buffering_req.is_pre_buffering = FALSE;
1063 if (streamer->buffering_percent == MAX_BUFFER_PERCENT)
1064 streamer->is_buffering_done = FALSE;
1066 streamer->buffering_percent = MAX_BUFFER_PERCENT;
1070 /* need to update periodically in case of slink mode */
1071 if ((increased_per == TRUE) &&
1072 (buffer_percent%10 == 0) &&
1073 (streamer->buffering_req.mode == MM_PLAYER_BUFFERING_MODE_SLINK) &&
1074 (streamer->buffering_req.is_pre_buffering == FALSE))
1076 /* Update buffer setting to reflect data receiving rate for slink mode */
1077 streamer->need_update = TRUE;
1082 void __mm_player_streaming_buffering( mm_player_streaming_t* streamer,
1083 GstMessage *buffering_msg,
1084 guint64 content_size,
1090 return_if_fail ( streamer );
1091 return_if_fail ( buffering_msg );
1092 return_if_fail ( GST_IS_MESSAGE ( buffering_msg ) );
1093 return_if_fail ( (GST_MESSAGE_TYPE ( buffering_msg ) == GST_MESSAGE_BUFFERING) );
1097 if (position > (gint64)(streamer->buffering_req.initial_second * GST_SECOND))
1098 streamer->buffering_req.is_pre_buffering = FALSE;
1100 streaming_update_buffering_status(streamer, buffering_msg, position);
1102 if (!streamer->need_update)
1104 //debug_log ("don't need to update buffering stats during buffering.\n");
1108 streamer->need_update = FALSE;
1111 streaming_update_buffer_setting (streamer, buffering_msg, content_size, position, duration);