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_message.h>
  37
  38 #include "mm_streamrecorder.h"
  39 #include <gst/gst.h>
  40
  41 /* streamrecorder sub module */
  42 #include "mm_streamrecorder_util.h"
  43 #include "mm_streamrecorder_video.h"
  44 #include "mm_streamrecorder_audio.h"
  45 #include "mm_streamrecorder_fileinfo.h"
  46 #include "mm_streamrecorder_gstcommon.h"
  47 #include "mm_streamrecorder_ini.h"
  48 #include "mm_streamrecorder_buffer_manager.h"
  49
  50 #ifdef __cplusplus
  51 extern "C" {
  52 #endif
  53
  54 /*=======================================================================================
  55 | MACRO DEFINITIONS                                                                     |
  56 ========================================================================================*/
  57
  58 #ifndef ARRAY_SIZE
  59 /**
  60  *      Macro for getting array size
  61  */
  62 #define ARRAY_SIZE(a) (sizeof((a)) / sizeof((a)[0]))
  63 #endif
  64
  65 #define _MMSTREAMRECORDER_STATE_SET_COUNT               3       /* checking interval */
  66 #define _MMSTREAMRECORDER_STATE_CHECK_INTERVAL  1000    //5000      /* checking interval */
  67
  68 /**
  69  *      Functions related with LOCK and WAIT
  70  */
  71 #define _MMSTREAMRECORDER_CAST_MTSAFE(handle)                           (((mmf_streamrecorder_t*)handle)->mtsafe)
  72 #define _MMSTREAMRECORDER_LOCK_FUNC(mutex)                              pthread_mutex_lock(&mutex)
  73 #define _MMSTREAMRECORDER_TRYLOCK_FUNC(mutex)                   (!pthread_mutex_trylock(&mutex))
  74 #define _MMSTREAMRECORDER_UNLOCK_FUNC(mutex)                            pthread_mutex_unlock(&mutex)
  75
  76 #define _MMSTREAMRECORDER_GET_LOCK(handle)                                      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).lock)
  77 #define _MMSTREAMRECORDER_LOCK(handle)                                          _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  78 #define _MMSTREAMRECORDER_TRYLOCK(handle)                                       _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  79 #define _MMSTREAMRECORDER_UNLOCK(handle)                                        _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_LOCK(handle))
  80
  81 #define _MMSTREAMRECORDER_GET_COND(handle)                                      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).cond)
  82 #define _MMSTREAMRECORDER_WAIT(handle)                                          pthread_cond_wait(&_MMSTREAMRECORDER_GET_COND(handle), _MMSTREAMRECORDER_GET_LOCK(handle))
  83 #define _MMSTREAMRECORDER_TIMED_WAIT(handle, timeout)           pthread_cond_timedwait(&_MMSTREAMRECORDER_GET_COND(handle), _MMSTREAMRECORDER_GET_LOCK(handle), &timeout)
  84
  85 /* for command */
  86 #define _MMSTREAMRECORDER_GET_CMD_LOCK(handle)                                  (_MMSTREAMRECORDER_CAST_MTSAFE(handle).cmd_lock)
  87 #define _MMSTREAMRECORDER_LOCK_CMD(handle)                                              _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  88 #define _MMSTREAMRECORDER_TRYLOCK_CMD(handle)                                   _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  89 #define _MMSTREAMRECORDER_UNLOCK_CMD(handle)                                            _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_CMD_LOCK(handle))
  90
  91 /* for state change */
  92 #define _MMSTREAMRECORDER_GET_STATE_LOCK(handle)                                        (_MMSTREAMRECORDER_CAST_MTSAFE(handle).state_lock)
  93 #define _MMSTREAMRECORDER_LOCK_STATE(handle)                                            _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  94 #define _MMSTREAMRECORDER_TRYLOCK_STATE(handle)                                 _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  95 #define _MMSTREAMRECORDER_UNLOCK_STATE(handle)                                          _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_STATE_LOCK(handle))
  96
  97 /* for gstreamer state change */
  98 #define _MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle)                                    (_MMSTREAMRECORDER_CAST_MTSAFE(handle).gst_state_lock)
  99 #define _MMSTREAMRECORDER_LOCK_GST_STATE(handle)                                                _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 100 #define _MMSTREAMRECORDER_TRYLOCK_GST_STATE(handle)                                     _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 101 #define _MMSTREAMRECORDER_UNLOCK_GST_STATE(handle)                                              _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_GST_STATE_LOCK(handle))
 102
 103 /* for setting/calling callback */
 104 #define _MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle)      (_MMSTREAMRECORDER_CAST_MTSAFE(handle).message_cb_lock)
 105 #define _MMSTREAMRECORDER_LOCK_MESSAGE_CALLBACK(handle)          _MMSTREAMRECORDER_LOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 106 #define _MMSTREAMRECORDER_TRYLOCK_MESSAGE_CALLBACK(handle)       _MMSTREAMRECORDER_TRYLOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 107 #define _MMSTREAMRECORDER_UNLOCK_MESSAGE_CALLBACK(handle)        _MMSTREAMRECORDER_UNLOCK_FUNC(_MMSTREAMRECORDER_GET_MESSAGE_CALLBACK_LOCK(handle))
 108
 109 /**
 110  * Caster of main handle (streamrecorder)
 111  */
 112 #define MMF_STREAMRECORDER(h) (mmf_streamrecorder_t *)(h)
 113
 114 /**
 115  * Caster of subcontext
 116  */
 117 #define MMF_STREAMRECORDER_SUBCONTEXT(h) (((mmf_streamrecorder_t *)(h))->sub_context)
 118
 119 /* LOCAL CONSTANT DEFINITIONS */
 120
 121 /*=======================================================================================
 122 | ENUM DEFINITIONS                                                                      |
 123 ========================================================================================*/
 124
 125 /**
 126  * streamrecorder Pipeline's Element name.
 127  * @note index of element.
 128  */
 129 typedef enum {
 130         _MMSTREAMRECORDER_ENCODE_NONE = (-1),
 131
 132         /* Main Pipeline Element */
 133         _MMSTREAMRECORDER_ENCODE_MAIN_PIPE = 0x00,
 134
 135         /* Pipeline element of Audio input */
 136         _MMSTREAMRECORDER_AUDIOSRC_BIN,
 137         _MMSTREAMRECORDER_AUDIOSRC_SRC, /* appsrc */
 138         _MMSTREAMRECORDER_AUDIOSRC_FILT,
 139         _MMSTREAMRECORDER_AUDIOSRC_CONV,
 140         _MMSTREAMRECORDER_AUDIOSRC_ENC,
 141         _MMSTREAMRECORDER_AUDIOSRC_QUE,
 142
 143         /* Pipeline element of Encodebin */
 144         _MMSTREAMRECORDER_ENCSINK_BIN,
 145         _MMSTREAMRECORDER_ENCSINK_SRC,  /* video appsrc */
 146         _MMSTREAMRECORDER_ENCSINK_FILT,
 147         _MMSTREAMRECORDER_ENCSINK_ENCBIN,
 148         _MMSTREAMRECORDER_ENCSINK_AQUE,
 149         _MMSTREAMRECORDER_ENCSINK_CONV,
 150         _MMSTREAMRECORDER_ENCSINK_AENC,
 151         _MMSTREAMRECORDER_ENCSINK_AENC_QUE,
 152         _MMSTREAMRECORDER_ENCSINK_VQUE,
 153         _MMSTREAMRECORDER_ENCSINK_VCONV,
 154         _MMSTREAMRECORDER_ENCSINK_VENC,
 155         _MMSTREAMRECORDER_ENCSINK_VENC_QUE,
 156         _MMSTREAMRECORDER_ENCSINK_PARSER,
 157         _MMSTREAMRECORDER_ENCSINK_ITOG,
 158         _MMSTREAMRECORDER_ENCSINK_ICROP,
 159         _MMSTREAMRECORDER_ENCSINK_ISCALE,
 160         _MMSTREAMRECORDER_ENCSINK_IFILT,
 161         _MMSTREAMRECORDER_ENCSINK_IQUE,
 162         _MMSTREAMRECORDER_ENCSINK_IENC,
 163         _MMSTREAMRECORDER_ENCSINK_MUX,
 164         _MMSTREAMRECORDER_ENCSINK_SINK,
 165
 166         _MMSTREAMRECORDER_ENCODE_PIPELINE_ELEMENT_NUM,
 167 } _MMSTREAMRECORDER_ENCODE_PIPELINE_ELELMENT;
 168
 169 typedef enum {
 170         /* Pipeline element of Audio input */
 171         _MMSTREAMRECORDER_AUDIO_SRC = 0x01,
 172         _MMSTREAMRECORDER_AUDIO_CONV,
 173         _MMSTREAMRECORDER_AUDIO_ENC,
 174         _MMSTREAMRECORDER_AUDIO_QUE,
 175
 176         /* Pipeline element of Video input */
 177         _MMSTREAMRECORDER_VIDEO_SRC,
 178         _MMSTREAMRECORDER_VIDEO_CAPS,
 179         _MMSTREAMRECORDER_VIDEO_CONV,
 180         _MMSTREAMRECORDER_VIDEO_ENC,
 181         _MMSTREAMRECORDER_VIDEO_QUE,
 182
 183         /* Pipeline element of Common */
 184         _MMSTREAMRECORDER_MUX,
 185         _MMSTREAMRECORDER_SINK,
 186
 187         _MMSTREAMRECORDER_ELELMENT_NUM,
 188 } _MMSTREAMRECORDER_ELELMENT;
 189
 190 /**
 191  * Command type for streamrecorder.
 192  */
 193
 194 typedef enum {
 195         _MM_STREAMRECORDER_CMD_CREATE,
 196         _MM_STREAMRECORDER_CMD_DESTROY,
 197         _MM_STREAMRECORDER_CMD_REALIZE,
 198         _MM_STREAMRECORDER_CMD_UNREALIZE,
 199         _MM_STREAMRECORDER_CMD_START,
 200         _MM_STREAMRECORDER_CMD_STOP,
 201         _MM_STREAMRECORDER_CMD_RECORD,
 202         _MM_STREAMRECORDER_CMD_PAUSE,
 203         _MM_STREAMRECORDER_CMD_COMMIT,
 204         _MM_STREAMRECORDER_CMD_CANCEL,
 205         _MM_STREAMRECORDER_CMD_QUIT,
 206 } _MMstreamrecorderCommandType;
 207
 208 /**
 209  * System state change cause
 210  */
 211 typedef enum {
 212         _MMSTREAMRECORDER_STATE_CHANGE_NORMAL = 0,
 213 } _MMstreamrecorderStateChange;
 214
 215
 216 /*=======================================================================================
 217 | STRUCTURE DEFINITIONS                                                                 |
 218 ========================================================================================*/
 219
 220 /**
 221  * MMstreamrecorder information for Multi-Thread Safe
 222  */
 223 typedef struct {
 224         pthread_mutex_t lock;           /**< Mutex (for general use) */
 225         pthread_cond_t cond;            /**< Condition (for general use) */
 226         pthread_mutex_t cmd_lock;       /**< Mutex (for command) */
 227         pthread_mutex_t state_lock;     /**< Mutex (for state change) */
 228         pthread_mutex_t gst_state_lock; /**< Mutex (for state change) */
 229         pthread_mutex_t message_cb_lock;/**< Mutex (for message callback) */
 230 } _MMStreamRecorderMTSafe;
 231
 232 /**
 233  * MMstreamrecorder information for command loop
 234  */
 235
 236 /**
 237  * MMstreamrecorder Sub Context
 238  */
 239 typedef struct {
 240         bool isMaxsizePausing;                          /**< Because of size limit, pipeline is paused. */
 241         bool isMaxtimePausing;                          /**< Because of time limit, pipeline is paused. */
 242         int encode_element_num;                         /**< count of encode element */
 243         GstClockTime pipeline_time;                     /**< current time of Gstreamer Pipeline */
 244         GstClockTime pause_time;                        /**< amount of time while pipeline is in PAUSE state.*/
 245         gboolean error_occurs;                          /**< flag for error */
 246         int error_code;                                         /**< error code for internal gstreamer error */
 247         gboolean ferror_send;                           /**< file write/seek error **/
 248         guint ferror_count;                                     /**< file write/seek error count **/
 249         gboolean bget_eos;                                      /**< Whether getting EOS */
 250         gboolean video_enable;                          /**< whether video is disabled or not when record */
 251         gboolean audio_enable;                          /**< whether audio is disabled or not when record */
 252
 253         /* INI information */
 254         unsigned int fourcc;                            /**< Get fourcc value */
 255         _MMStreamRecorderVideoInfo *info_video;  /**< extra information for video recording */
 256         _MMStreamRecorderAudioInfo *info_audio;  /**< extra information for audio recording */
 257         _MMStreamRecorderFileInfo *info_file;  /**< extra information for audio recording */
 258         _MMStreamRecorderGstElement *encode_element;
 259                                                                                          /**< array of encode element */
 260
 261 //  type_element *VideosinkElement;         /**< configure data of videosink element */
 262 } _MMStreamRecorderSubContext;
 263
 264 /**
 265   * _MMstreamrecorderContext
 266   */
 267 typedef struct mmf_streamrecorder {
 268         /* information */
 269         //  int type;               /**< mmstreamrecorder_mode_type */
 270         int state;              /**< state of streamrecorder */
 271         //  int target_state;       /**< Target state that want to set. This is a flag that
 272         //                             * stands for async state changing. If this value differ from state,
 273         //                             * it means state is changing now asychronously. */
 274
 275         /* handles */
 276         MMHandleType attributes;                           /**< Attribute handle */
 277         _MMStreamRecorderSubContext *sub_context;       /**< sub context */
 278         GList *buffer_probes;                              /**< a list of buffer probe handle */
 279         GList *event_probes;                               /**< a list of event probe handle */
 280         GList *data_probes;                                        /**< a list of data probe handle */
 281         GList *signals;                                            /**< a list of signal handle */
 282         GList *msg_data;                                           /**< a list of msg data */
 283         guint pipeline_cb_event_id;                        /**< Event source ID of pipeline message callback */
 284         guint encode_pipeline_cb_event_id;         /**< Event source ID of encode pipeline message callback */
 285
 286         /* callback handlers */
 287         MMMessageCallback msg_cb;                                                               /**< message callback */
 288         void *msg_cb_param;                                                                             /**< message callback parameter */
 289         int (*command) (MMHandleType, int);                                             /**< streamrecorder's command */
 290
 291         /* etc */
 292         _MMStreamRecorderMTSafe mtsafe;                                                          /**< Thread safe */
 293         mm_streamrecorder_ini_t ini;
 294
 295         int reserved[4];                        /**< reserved */
 296 } mmf_streamrecorder_t;
 297
 298 /*=======================================================================================
 299 | EXTERN GLOBAL VARIABLE                                                                |
 300 ========================================================================================*/
 301
 302 /*=======================================================================================
 303 | GLOBAL FUNCTION PROTOTYPES                                                            |
 304 ========================================================================================*/
 305 /**
 306  *      This function creates streamrecorder for capturing still image and recording.
 307  *
 308  *      @param[out]     handle          Specifies the streamrecorder  handle
 309  *      @param[in]      info            Preset information of streamrecorder
 310  *      @return         This function returns zero on success, or negative value with error code.
 311  *      @remarks        When this function calls successfully, streamrecorder  handle will be filled with a @n
 312  *                      valid value and the state of  the streamrecorder  will become MM_streamrecorder_STATE_NULL.@n
 313  *                      Note that  it's not ready to working streamrecorder. @n
 314  *                      You should call mmstreamrecorder_realize before starting streamrecorder.
 315  *      @see            _mmstreamrecorder_create
 316  */
 317 int _mmstreamrecorder_create(MMHandleType *handle);
 318
 319 /**
 320 *  This function gets the current state of streamreccorder.
 321 *  mm_streamrecorderr is working on the base of its state. An user should check the state of mm_streamrecorder before calling its functions.
 322 *  If the handle is avaiable, user can retrieve the value.
 323 *
 324 *  @param[in]  streamrecorder   A handle of streamrecorder.
 325 *  @param[out] state       On return, it contains current state of streamrecorder.
 326 *  @return     This function returns zero(MM_ERROR_NONE) on success, or negative value with error code.
 327 *          Please refer 'mm_error.h' to know the exact meaning of the error.
 328 *  @see        MMStreamRecorderStateType
 329 *  @pre        None
 330 *  @post       None
 331 *  @remarks    None
 332 */
 333
 334 MMStreamRecorderStateType _mmstreamrecorder_get_state(MMHandleType handle);
 335
 336 /**
 337  *      This function destroys instance of 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  *      @see            _mmstreamrecorder_create
 342  */
 343 int _mmstreamrecorder_destroy(MMHandleType handle);
 344
 345 /**
 346  *      This function allocates memory for streamrecorder.
 347  *
 348  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 349  *      @return         This function returns zero on success, or negative value with error code.
 350  *      @remarks        This function can  be called successfully when current state is MM_streamrecorder_STATE_NULL @n
 351  *                      and  the state of the streamrecorder  will become MM_streamrecorder_STATE_READY. @n
 352  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 353  *      @see            _mmstreamrecorder_unrealize
 354  *      @pre            MM_streamrecorder_STATE_NULL
 355  *      @post           MM_streamrecorder_STATE_READY
 356  */
 357 int _mmstreamrecorder_realize(MMHandleType hstreamrecorder);
 358
 359 /**
 360  *      This function free allocated memory for streamrecorder.
 361  *
 362  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 363  *      @return         This function returns zero on success, or negative value with error code.
 364  *      @remarks        This function release all resources which are allocated for the streamrecorder engine.@n
 365  *                      This function can  be called successfully when current state is MM_streamrecorder_STATE_READY and  @n
 366  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_NULL. @n
 367  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 368  *      @see            _mmstreamrecorder_realize
 369  *      @pre            MM_streamrecorder_STATE_READY
 370  *      @post           MM_streamrecorder_STATE_NULL
 371  */
 372 int _mmstreamrecorder_unrealize(MMHandleType hstreamrecorder);
 373
 374 /**
 375  *      This function is to start previewing.
 376  *
 377  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 378  *      @return         This function returns zero on success, or negative value with error code.
 379  *      @remarks        This function can  be called successfully when current state is MM_streamrecorder_STATE_READY and  @n
 380  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 381  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 382  *      @see            _mmstreamrecorder_stop
 383  */
 384 int _mmstreamrecorder_record(MMHandleType hstreamrecorder);
 385
 386 int _mmstreamrecorder_push_video_packet(MMHandleType handle, media_packet_h packet, unsigned long long timestamp, void *buffer);
 387
 388 int _mmstreamrecorder_push_stream_buffer(MMHandleType handle, MMStreamRecorderStreamType streamtype, unsigned long long timestamp, void *buffer, int size);
 389
 390 /**
 391  *      This function is to pause video and audio recording
 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 MM_streamrecorder_STATE_RECORDING and  @n
 396  *                      the  state of the streamrecorder  will become MM_streamrecorder_STATE_PAUSED.@n
 397  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.@n
 398  *      @see            _mmstreamrecorder_record
 399  */
 400 int _mmstreamrecorder_pause(MMHandleType hstreamrecorder);
 401
 402 /**
 403  *      This function is to stop video and audio  recording and  save results.
 404  *
 405  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 406  *      @return         This function returns zero on success, or negative value with error code.
 407  *      @remarks        This function can  be called successfully when current state is @n
 408  *                      MM_streamrecorder_STATE_PAUSED or MM_streamrecorder_STATE_RECORDING and  @n
 409  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 410  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION
 411  *      @see            _mmstreamrecorder_cancel
 412  */
 413 int _mmstreamrecorder_commit(MMHandleType hstreamrecorder);
 414
 415 /**
 416  *      This function is to stop video and audio recording and do not save results.
 417  *
 418  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 419  *      @return         This function returns zero on success, or negative value with error code.
 420  *      @remarks        This function can  be called successfully when current state is @n
 421  *                      MM_streamrecorder_STATE_PAUSED or MM_streamrecorder_STATE_RECORDING and  @n
 422  *                      the state of the streamrecorder  will become MM_streamrecorder_STATE_PREPARE. @n
 423  *                      Otherwise, this function will return MM_ERROR_streamrecorder_INVALID_CONDITION.
 424  *      @see            _mmstreamrecorder_commit
 425  */
 426 int _mmstreamrecorder_cancel(MMHandleType hstreamrecorder);
 427
 428 /**
 429  *      This function is to set callback for receiving messages from streamrecorder.
 430  *
 431  *      @param[in]      hstreamrecorder Specifies the streamrecorder  handle
 432  *      @param[in]      callback        Specifies the function pointer of callback function
 433  *      @param[in]      user_data       Specifies the user poiner for passing to callback function
 434  *
 435  *      @return         This function returns zero on success, or negative value with error code.
 436  *      @remarks        typedef bool (*mm_message_callback) (int msg, mm_messageType *param, void *user_param);@n
 437  *              @n
 438  *              typedef union                           @n
 439  *              {                                                       @n
 440  *                      int code;                               @n
 441  *                      struct                                  @n
 442  *                      {                                               @n
 443  *                              int total;                      @n
 444  *                              int elapsed;            @n
 445  *                      } time;                                 @n
 446  *                      struct                                  @n
 447  *                      {                                               @n
 448  *                              int previous;           @n
 449  *                              int current;                    @n
 450  *                      } state;                                        @n
 451  *              } mm_message_type;      @n
 452  *                                                                      @n
 453  *              If a  message value for mm_message_callback is MM_MESSAGE_STATE_CHANGED, @n
 454  *              state value in mm_message_type  will be a mmstreamrecorder_state_type enum value;@n
 455  *              @n
 456  *              If  a message value for mm_message_callback is MM_MESSAGE_ERROR,  @n
 457  *              the code value in mm_message_type will be a mmplayer_error_type enum value;
 458  *
 459  *      @see            mm_message_type,  mmstreamrecorder_state_type,  mmstreamrecorder_error_type
 460  */
 461 int _mmstreamrecorder_set_message_callback(MMHandleType hstreamrecorder, MMMessageCallback callback, void *user_data);
 462
 463 /**
 464  * This function allocates structure of subsidiary attributes.
 465  *
 466  * @param[in]   type            Allocation type of streamrecorder context.
 467  * @return      This function returns structure pointer on success, NULL value on failure.
 468  * @remarks
 469  * @see         _mmstreamrecorder_dealloc_subcontext()
 470  *
 471  */
 472 int _mmstreamrecorder_alloc_subcontext(MMHandleType handle);
 473
 474 int _mmstreamrecorder_alloc_subcontext_videoinfo(MMHandleType handle);
 475
 476 int _mmstreamrecorder_alloc_subcontext_audioinfo(MMHandleType handle);
 477
 478 int _mmstreamrecorder_alloc_subcontext_fileinfo(MMHandleType handle);
 479
 480 /**
 481  * This function releases structure of subsidiary attributes.
 482  *
 483  * @param[in]   sc              Handle of streamrecorder subcontext.
 484  * @return      void
 485  * @remarks
 486  * @see         _mmstreamrecorder_alloc_subcontext()
 487  *
 488  */
 489 void _mmstreamrecorder_dealloc_subcontext(MMHandleType handle);
 490
 491 /**
 492  * This function sets command function according to the type.
 493  *
 494  * @param[in]   handle          Handle of streamrecorder context.
 495  * @param[in]   type            Allocation type of streamrecorder context.
 496  * @return      This function returns MM_ERROR_NONE on success, or other values with error code.
 497  * @remarks
 498  * @see         __mmstreamrecorder_video_command(), __mmstreamrecorder_audio_command(), __mmstreamrecorder_image_command()
 499  *
 500  */
 501 void _mmstreamrecorder_set_functions(MMHandleType handle);
 502
 503 void _mmstreamrecorder_unset_functions(MMHandleType handle);
 504
 505 #ifdef __cplusplus
 506 }
 507 #endif
 508 #endif                                                  /* __MM_streamrecorder_INTERNAL_H__ */