src/include/mm_streamrecorder_internal.h

   1 /*
   2  * libmm-streamrecorder
   3  *
   4  * Copyright (c) 2000 - 2013 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Hyuntae Kim <ht1211.kim@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22 #ifndef __MM_STREAMRECORDER_INTERNAL_H__
  23 #define __MM_STREAMRECORDER_INTERNAL_H__
  24
  25 /*=======================================================================================
  26 | INCLUDE FILES                                                                         |
  27 ========================================================================================*/
  28 #include <malloc.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <pthread.h>
  32 #include <semaphore.h>
  33
  34 #include <mm_types.h>
  35 #include <mm_attrs.h>
  36 #include <mm_attrs_private.h>
  37 #include <mm_message.h>
  38
  39 #include "mm_streamrecorder.h"
  40 #include <gst/gst.h>
  41
  42 /* streamrecorder sub module */
  43 #include "mm_streamrecorder_util.h"
  44 #include "mm_streamrecorder_video.h"
  45 #include "mm_streamrecorder_audio.h"
  46 #include "mm_streamrecorder_fileinfo.h"
  47 #include "mm_streamrecorder_gstcommon.h"
  48 #include "mm_streamrecorder_ini.h"
  49 #include "mm_streamrecorder_buffer_manager.h"
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 /*=======================================================================================
  56 | MACRO DEFINITIONS                                                                     |
  57 ========================================================================================*/
  58
  59 #ifndef ARRAY_SIZE
  60 /**
  61  *      Macro for getting array size
  62  */
  63 #define ARRAY_SIZE(a) (sizeof((a)) / sizeof((a)[0]))
  64 #endif
  65
  66 #define _MMSTREAMRECORDER_STATE_SET_COUNT               3       /* checking interval */
  67 #define _MMSTREAMRECORDER_STATE_CHECK_INTERVAL  1000    //5000      /* checking interval */
  68
  69 /**
  70  *      Functions related with LOCK and WAIT
  71  */
  72 #define _MMSTREAMRECORDER_CAST_MTSAFE(handle)                           (((mmf_streamrecorder_t*)handle)->mtsafe)
  73 #define _MMSTREAMRECORDER_LOCK_FUNC(mutex)                              pthread_mutex_lock(&mutex)
  74 #define _MMSTREAMRECORDER_TRYLOCK_FUNC(mutex)                   (!pthread_mutex_trylock(&mutex))
  75 #define _MMSTREAMRECORDER_UNLOCK_FUNC(mutex)                            pthread_mutex_unlock(&mutex)
  76
  77 #define _MMSTREAMRECORDER_GET_LOCK(handle)                                      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).lock)
  78 #define _MMSTREAMRECORDER_LOCK(handle)                                          _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  79 #define _MMSTREAMRECORDER_TRYLOCK(handle)                                       _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  80 #define _MMSTREAMRECORDER_UNLOCK(handle)                                        _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  81
  82 #define _MMSTREAMRECORDER_GET_COND(handle)                                      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).cond)
  83 #define _MMSTREAMRECORDER_WAIT(handle)                                          pthread_cond_wait(&_MMSTREAMRECORDER_GET_COND(handle), _MMSTREAMRECORDER_GET_LOCK(handle))
  84 #define _MMSTREAMRECORDER_TIMED_WAIT(handle, timeout)           pthread_cond_timedwait(&_MMSTREAMRECORDER_GET_COND(handle), _MMSTREAMRECORDER_GET_LOCK(handle),&timeout)
  85
  86 /* for command */
  87 #define _MMSTREAMRECORDER_GET_CMD_LOCK(handle)                                  (_MMSTREAMRECORDER_CAST_MTSAFE(handle).cmd_lock)
  88 #define _MMSTREAMRECORDER_LOCK_CMD(handle)                                              _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  89 #define _MMSTREAMRECORDER_TRYLOCK_CMD(handle)                                   _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  90 #define _MMSTREAMRECORDER_UNLOCK_CMD(handle)                                            _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  91
  92 /* for state change */
  93 #define _MMSTREAMRECORDER_GET_STATE_LOCK(handle)                                        (_MMSTREAMRECORDER_CAST_MTSAFE(handle).state_lock)
  94 #define _MMSTREAMRECORDER_LOCK_STATE(handle)                                            _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  95 #define _MMSTREAMRECORDER_TRYLOCK_STATE(handle)                                 _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  96 #define _MMSTREAMRECORDER_UNLOCK_STATE(handle)                                          _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  97
  98 /* for gstreamer state change */
  99 #define _MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle)                                    (_MMSTREAMRECORDER_CAST_MTSAFE(handle).gst_state_lock)
 100 #define _MMSTREAMRECORDER_LOCK_GST_STATE(handle)                                                _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 101 #define _MMSTREAMRECORDER_TRYLOCK_GST_STATE(handle)                                     _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 102 #define _MMSTREAMRECORDER_UNLOCK_GST_STATE(handle)                                              _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 103
 104 /* for setting/calling callback */
 105 #define _MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle)      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).message_cb_lock)
 106 #define _MMSTREAMRECORDER_LOCK_MESSAGE_CALLBACK(handle)          _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 107 #define _MMSTREAMRECORDER_TRYLOCK_MESSAGE_CALLBACK(handle)       _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 108 #define _MMSTREAMRECORDER_UNLOCK_MESSAGE_CALLBACK(handle)        _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 109
 110 /**
 111  * Caster of main handle (streamrecorder)
 112  */
 113 #define MMF_STREAMRECORDER(h) (mmf_streamrecorder_t *)(h)
 114
 115 /**
 116  * Caster of subcontext
 117  */
 118 #define MMF_STREAMRECORDER_SUBCONTEXT(h) (((mmf_streamrecorder_t *)(h))->sub_context)
 119
 120 /* LOCAL CONSTANT DEFINITIONS */
 121
 122 /*=======================================================================================
 123 | ENUM DEFINITIONS                                                                      |
 124 ========================================================================================*/
 125
 126 /**
 127  * streamrecorder Pipeline's Element name.
 128  * @note index of element.
 129  */
 130 typedef enum {
 131         _MMSTREAMRECORDER_ENCODE_NONE = (-1),
 132
 133         /* Main Pipeline Element */
 134         _MMSTREAMRECORDER_ENCODE_MAIN_PIPE = 0x00,
 135
 136         /* Pipeline element of Audio input */
 137         _MMSTREAMRECORDER_AUDIOSRC_BIN,
 138         _MMSTREAMRECORDER_AUDIOSRC_SRC, /* appsrc */
 139         _MMSTREAMRECORDER_AUDIOSRC_FILT,
 140
 141         /* Pipeline element of Encodebin */
 142         _MMSTREAMRECORDER_ENCSINK_BIN,
 143         _MMSTREAMRECORDER_ENCSINK_SRC,  /* video appsrc */
 144         _MMSTREAMRECORDER_ENCSINK_FILT,
 145         _MMSTREAMRECORDER_ENCSINK_ENCBIN,
 146         _MMSTREAMRECORDER_ENCSINK_AQUE,
 147         _MMSTREAMRECORDER_ENCSINK_CONV,
 148         _MMSTREAMRECORDER_ENCSINK_AENC,
 149         _MMSTREAMRECORDER_ENCSINK_AENC_QUE,
 150         _MMSTREAMRECORDER_ENCSINK_VQUE,
 151         _MMSTREAMRECORDER_ENCSINK_VCONV,
 152         _MMSTREAMRECORDER_ENCSINK_VENC,
 153         _MMSTREAMRECORDER_ENCSINK_VENC_QUE,
 154         _MMSTREAMRECORDER_ENCSINK_PARSER,
 155         _MMSTREAMRECORDER_ENCSINK_ITOG,
 156         _MMSTREAMRECORDER_ENCSINK_ICROP,
 157         _MMSTREAMRECORDER_ENCSINK_ISCALE,
 158         _MMSTREAMRECORDER_ENCSINK_IFILT,
 159         _MMSTREAMRECORDER_ENCSINK_IQUE,
 160         _MMSTREAMRECORDER_ENCSINK_IENC,
 161         _MMSTREAMRECORDER_ENCSINK_MUX,
 162         _MMSTREAMRECORDER_ENCSINK_SINK,
 163
 164         _MMSTREAMRECORDER_ENCODE_PIPELINE_ELEMENT_NUM,
 165 } _MMSTREAMRECORDER_ENCODE_PIPELINE_ELELMENT;
 166
 167 /**
 168  * Command type for streamrecorder.
 169  */
 170
 171 typedef enum {
 172         _MM_STREAMRECORDER_CMD_CREATE,
 173         _MM_STREAMRECORDER_CMD_DESTROY,
 174         _MM_STREAMRECORDER_CMD_REALIZE,
 175         _MM_STREAMRECORDER_CMD_UNREALIZE,
 176         _MM_STREAMRECORDER_CMD_START,
 177         _MM_STREAMRECORDER_CMD_STOP,
 178         _MM_STREAMRECORDER_CMD_RECORD,
 179         _MM_STREAMRECORDER_CMD_PAUSE,
 180         _MM_STREAMRECORDER_CMD_COMMIT,
 181         _MM_STREAMRECORDER_CMD_CANCEL,
 182         _MM_STREAMRECORDER_CMD_QUIT,
 183 } _MMstreamrecorderCommandType;
 184
 185 /**
 186  * System state change cause
 187  */
 188 typedef enum {
 189         _MMSTREAMRECORDER_STATE_CHANGE_NORMAL = 0,
 190 } _MMstreamrecorderStateChange;
 191
 192
 193 /*=======================================================================================
 194 | STRUCTURE DEFINITIONS                                                                 |
 195 ========================================================================================*/
 196
 197 /**
 198  * MMstreamrecorder information for Multi-Thread Safe
 199  */
 200 typedef struct {
 201         pthread_mutex_t lock;           /**< Mutex (for general use) */
 202         pthread_cond_t cond;            /**< Condition (for general use) */
 203         pthread_mutex_t cmd_lock;       /**< Mutex (for command) */
 204         pthread_mutex_t state_lock;     /**< Mutex (for state change) */
 205         pthread_mutex_t gst_state_lock; /**< Mutex (for state change) */
 206         pthread_mutex_t message_cb_lock;/**< Mutex (for message callback) */
 207 } _MMStreamRecorderMTSafe;
 208
 209 /**
 210  * MMstreamrecorder information for command loop
 211  */
 212
 213 /**
 214  * MMstreamrecorder Sub Context
 215  */
 216 typedef struct {
 217         bool isMaxsizePausing;                          /**< Because of size limit, pipeline is paused. */
 218         bool isMaxtimePausing;                          /**< Because of time limit, pipeline is paused. */
 219         int encode_element_num;                         /**< count of encode element */
 220         GstClockTime pipeline_time;                     /**< current time of Gstreamer Pipeline */
 221         GstClockTime pause_time;                        /**< amount of time while pipeline is in PAUSE state.*/
 222         gboolean error_occurs;                          /**< flag for error */
 223         int error_code;                                         /**< error code for internal gstreamer error */
 224         gboolean ferror_send;                           /**< file write/seek error **/
 225         guint ferror_count;                                     /**< file write/seek error count **/
 226         gboolean bget_eos;                                      /**< Whether getting EOS */
 227         gboolean video_enable;                          /**< whether video is disabled or not when record */
 228         gboolean audio_enable;                          /**< whether audio is disabled or not when record */
 229
 230         /* INI information */
 231         unsigned int fourcc;                            /**< Get fourcc value */
 232         _MMStreamRecorderVideoInfo *info_video;  /**< extra information for video recording */
 233         _MMStreamRecorderAudioInfo *info_audio;  /**< extra information for audio recording */
 234         _MMStreamRecorderFileInfo *info_file;  /**< extra information for audio recording */
 235         _MMStreamRecorderGstElement *encode_element;
 236                                                                                          /**< array of encode element */
 237
 238 //  type_element *VideosinkElement;         /**< configure data of videosink element */
 239 } _MMStreamRecorderSubContext;
 240
 241 /**
 242   * _MMstreamrecorderContext
 243   */
 244 typedef struct mmf_streamrecorder {
 245         /* information */
 246         //  int type;               /**< mmstreamrecorder_mode_type */
 247         int state;              /**< state of streamrecorder */
 248         //  int target_state;       /**< Target state that want to set. This is a flag that
 249         //                             * stands for async state changing. If this value differ from state,
 250         //                             * it means state is changing now asychronously. */
 251
 252         /* handles */
 253         MMHandleType attributes;                           /**< Attribute handle */
 254         _MMStreamRecorderSubContext *sub_context;       /**< sub context */
 255         GList *buffer_probes;                              /**< a list of buffer probe handle */
 256         GList *event_probes;                               /**< a list of event probe handle */
 257         GList *data_probes;                                        /**< a list of data probe handle */
 258         GList *signals;                                            /**< a list of signal handle */
 259         GList *msg_data;                                           /**< a list of msg data */
 260         guint pipeline_cb_event_id;                        /**< Event source ID of pipeline message callback */
 261         guint encode_pipeline_cb_event_id;         /**< Event source ID of encode pipeline message callback */
 262
 263         /* callback handlers */
 264         MMMessageCallback msg_cb;                                                               /**< message callback */
 265         void *msg_cb_param;                                                                             /**< message callback parameter */
 266         int (*command) (MMHandleType, int);                                             /**< streamrecorder's command */
 267
 268         /* etc */
 269         _MMStreamRecorderMTSafe mtsafe;                                                          /**< Thread safe */
 270         mm_streamrecorder_ini_t ini;
 271
 272         int reserved[4];                        /**< reserved */
 273 } mmf_streamrecorder_t;
 274
 275 /*=======================================================================================
 276 | EXTERN GLOBAL VARIABLE                                                                |
 277 ========================================================================================*/
 278
 279 /*=======================================================================================
 280 | GLOBAL FUNCTION PROTOTYPES                                                            |
 281 ========================================================================================*/
 282 /**
 283  *      This function creates streamrecorder for capturing still image and recording.
 284  *
 285  *      @param[out]     handle          Specifies the streamrecorder  handle
 286  *      @param[in]      info            Preset information of streamrecorder
 287  *      @return         This function returns zero on success, or negative value with error code.
 288  *      @remarks        When this function calls successfully, streamrecorder  handle will be filled with a @n
 289  *                      valid value and the state of  the streamrecorder  will become MM_streamrecorder_STATE_NULL.@n
 290  *                      Note that  it's not ready to working streamrecorder. @n
 291  *                      You should call mmstreamrecorder_realize before starting streamrecorder.
 292  *      @see            _mmstreamrecorder_create
 293  */
 294 int _mmstreamrecorder_create(MMHandleType *handle);
 295
 296 /**
 297 *  This function gets the current state of streamreccorder.
 298 *  mm_streamrecorderr is working on the base of its state. An user should check the state of mm_streamrecorder before calling its functions.
 299 *  If the handle is avaiable, user can retrieve the value.
 300 *
 301 *  @param[in]  streamrecorder   A handle of streamrecorder.
 302 *  @param[out] state       On return, it contains current state of streamrecorder.
 303 *  @return     This function returns zero(MM_ERROR_NONE) on success, or negative value with error code.
 304 *          Please refer 'mm_error.h' to know the exact meaning of the error.
 305 *  @see        MMStreamRecorderStateType
 306 *  @pre        None
 307 *  @post       None
 308 *  @remarks    None
 309 */
 310
 311 MMStreamRecorderStateType _mmstreamrecorder_get_state(MMHandleType handle);
 312
 313 /**
 314  *      This function destroys instance of streamrecorder.
 315  *
 316  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 317  *      @return         This function returns zero on success, or negative value with error code.
 318  *      @see            _mmstreamrecorder_create
 319  */
 320 int _mmstreamrecorder_destroy(MMHandleType handle);
 321
 322 /**
 323  *      This function allocates memory for streamrecorder.
 324  *
 325  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 326  *      @return         This function returns zero on success, or negative value with error code.
 327  *      @remarks        This function can  be called successfully when current state is MM_streamrecorder_STATE_NULL @n
 328  *                      and  the state of the streamrecorder  will become MM_streamrecorder_STATE_READY. @n
 329  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 330  *      @see            _mmstreamrecorder_unrealize
 331  *      @pre            MM_streamrecorder_STATE_NULL
 332  *      @post           MM_streamrecorder_STATE_READY
 333  */
 334 int _mmstreamrecorder_realize(MMHandleType hstreamrecorder);
 335
 336 /**
 337  *      This function free allocated memory for streamrecorder.
 338  *
 339  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 340  *      @return         This function returns zero on success, or negative value with error code.
 341  *      @remarks        This function release all resources which are allocated for the streamrecorder engine.@n
 342  *                      This function can  be called successfully when current state is MM_streamrecorder_STATE_READY and  @n
 343  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_NULL. @n
 344  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 345  *      @see            _mmstreamrecorder_realize
 346  *      @pre            MM_streamrecorder_STATE_READY
 347  *      @post           MM_streamrecorder_STATE_NULL
 348  */
 349 int _mmstreamrecorder_unrealize(MMHandleType hstreamrecorder);
 350
 351 /**
 352  *      This function is to start previewing.
 353  *
 354  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 355  *      @return         This function returns zero on success, or negative value with error code.
 356  *      @remarks        This function can  be called successfully when current state is MM_streamrecorder_STATE_READY and  @n
 357  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 358  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 359  *      @see            _mmstreamrecorder_stop
 360  */
 361 int _mmstreamrecorder_record(MMHandleType hstreamrecorder);
 362
 363 int _mmstreamrecorder_push_stream_buffer(MMHandleType handle, MMStreamRecorderStreamType streamtype, unsigned long timestamp, void *buffer, int size);
 364
 365 /**
 366  *      This function is to pause video and audio recording
 367  *
 368  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 369  *      @return         This function returns zero on success, or negative value with error code.
 370  *      @remarks        This function can  be called successfully when current state is MM_streamrecorder_STATE_RECORDING and  @n
 371  *                      the  state of the streamrecorder  will become MM_streamrecorder_STATE_PAUSED.@n
 372  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.@n
 373  *      @see            _mmstreamrecorder_record
 374  */
 375 int _mmstreamrecorder_pause(MMHandleType hstreamrecorder);
 376
 377 /**
 378  *      This function is to stop video and audio  recording and  save results.
 379  *
 380  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 381  *      @return         This function returns zero on success, or negative value with error code.
 382  *      @remarks        This function can  be called successfully when current state is @n
 383  *                      MM_streamrecorder_STATE_PAUSED or MM_streamrecorder_STATE_RECORDING and  @n
 384  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 385  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION
 386  *      @see            _mmstreamrecorder_cancel
 387  */
 388 int _mmstreamrecorder_commit(MMHandleType hstreamrecorder);
 389
 390 /**
 391  *      This function is to stop video and audio recording and do not save results.
 392  *
 393  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 394  *      @return         This function returns zero on success, or negative value with error code.
 395  *      @remarks        This function can  be called successfully when current state is @n
 396  *                      MM_streamrecorder_STATE_PAUSED or MM_streamrecorder_STATE_RECORDING and  @n
 397  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 398  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 399  *      @see            _mmstreamrecorder_commit
 400  */
 401 int _mmstreamrecorder_cancel(MMHandleType hstreamrecorder);
 402
 403 /**
 404  *      This function is to set callback for receiving messages from streamrecorder.
 405  *
 406  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 407  *      @param[in]      callback        Specifies the function pointer of callback function
 408  *      @param[in]      user_data       Specifies the user poiner for passing to callback function
 409  *
 410  *      @return         This function returns zero on success, or negative value with error code.
 411  *      @remarks        typedef bool (*mm_message_callback) (int msg, mm_messageType *param, void *user_param);@n
 412  *              @n
 413  *              typedef union                           @n
 414  *              {                                                       @n
 415  *                      int code;                               @n
 416  *                      struct                                  @n
 417  *                      {                                               @n
 418  *                              int total;                      @n
 419  *                              int elapsed;            @n
 420  *                      } time;                                 @n
 421  *                      struct                                  @n
 422  *                      {                                               @n
 423  *                              int previous;           @n
 424  *                              int current;                    @n
 425  *                      } state;                                        @n
 426  *              } mm_message_type;      @n
 427  *                                                                      @n
 428  *              If a  message value for mm_message_callback is MM_MESSAGE_STATE_CHANGED, @n
 429  *              state value in mm_message_type  will be a mmstreamrecorder_state_type enum value;@n
 430  *              @n
 431  *              If  a message value for mm_message_callback is MM_MESSAGE_ERROR,  @n
 432  *              the code value in mm_message_type will be a mmplayer_error_type enum value;
 433  *
 434  *      @see            mm_message_type,  mmstreamrecorder_state_type,  mmstreamrecorder_error_type
 435  */
 436 int _mmstreamrecorder_set_message_callback(MMHandleType hstreamrecorder, MMMessageCallback callback, void *user_data);
 437
 438 /**
 439  * This function allocates structure of subsidiary attributes.
 440  *
 441  * @param[in]   type            Allocation type of streamrecorder context.
 442  * @return      This function returns structure pointer on success, NULL value on failure.
 443  * @remarks
 444  * @see         _mmstreamrecorder_dealloc_subcontext()
 445  *
 446  */
 447 int _mmstreamrecorder_alloc_subcontext(MMHandleType handle);
 448
 449 int _mmstreamrecorder_alloc_subcontext_videoinfo(MMHandleType handle);
 450
 451 int _mmstreamrecorder_alloc_subcontext_audioinfo(MMHandleType handle);
 452
 453 int _mmstreamrecorder_alloc_subcontext_fileinfo(MMHandleType handle);
 454
 455 /**
 456  * This function releases structure of subsidiary attributes.
 457  *
 458  * @param[in]   sc              Handle of streamrecorder subcontext.
 459  * @return      void
 460  * @remarks
 461  * @see         _mmstreamrecorder_alloc_subcontext()
 462  *
 463  */
 464 void _mmstreamrecorder_dealloc_subcontext(MMHandleType handle);
 465
 466 /**
 467  * This function sets command function according to the type.
 468  *
 469  * @param[in]   handle          Handle of streamrecorder context.
 470  * @param[in]   type            Allocation type of streamrecorder context.
 471  * @return      This function returns MM_ERROR_NONE on success, or other values with error code.
 472  * @remarks
 473  * @see         __mmstreamrecorder_video_command(), __mmstreamrecorder_audio_command(), __mmstreamrecorder_image_command()
 474  *
 475  */
 476 void _mmstreamrecorder_set_functions(MMHandleType handle);
 477
 478 void _mmstreamrecorder_unset_functions(MMHandleType handle);
 479
 480 #ifdef __cplusplus
 481 }
 482 #endif
 483 #endif                                                  /* __MM_streamrecorder_INTERNAL_H__ */