server/plugin/wav/mm_sound_plugin_codec_wave.c

   1 /*
   2  * libmm-sound
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Seungbae Shin <seungbae.shin@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 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include <semaphore.h>
  27 #include <unistd.h>
  28
  29 #include <mm_error.h>
  30 #include <mm_debug.h>
  31 #include <pthread.h>
  32 #include <mm_sound_pa_client.h>
  33
  34 #include "../../include/mm_sound.h"
  35 #include "../../include/mm_ipc.h"
  36 #include "../../include/mm_sound_thread_pool.h"
  37 #include "../../include/mm_sound_plugin_codec.h"
  38 #include "../../../include/mm_sound_private.h"
  39
  40
  41 #define SAMPLE_COUNT    128
  42 #define WAV_FILE_SAMPLE_PLAY_DURATION           350                     /*Unit: ms*/
  43 enum {
  44         WAVE_CODE_UNKNOWN                               = 0,
  45         WAVE_CODE_PCM                                   = 1,
  46         WAVE_CODE_ADPCM                         = 2,
  47         WAVE_CODE_G711                                  = 3,
  48         WAVE_CODE_IMA_ADPCM                             = 17,
  49         WAVE_CODE_G723_ADPCM                    = 20,
  50         WAVE_CODE_GSM                                   = 49,
  51         WAVE_CODE_G721_ADPCM                    = 64,
  52         WAVE_CODE_MPEG                                  = 80,
  53 };
  54
  55 #define MAKE_FOURCC(a, b, c, d)         ((a) | (b) << 8) | ((c) << 16 | ((d) << 24))
  56 #define RIFF_CHUNK_ID                           ((unsigned long) MAKE_FOURCC('R', 'I', 'F', 'F'))
  57 #define RIFF_CHUNK_TYPE                         ((unsigned long) MAKE_FOURCC('W', 'A', 'V', 'E'))
  58 #define FMT_CHUNK_ID                            ((unsigned long) MAKE_FOURCC('f', 'm', 't', ' '))
  59 #define DATA_CHUNK_ID                           ((unsigned long) MAKE_FOURCC('d', 'a', 't', 'a'))
  60
  61 #define CODEC_WAVE_LOCK(LOCK) do { pthread_mutex_lock(LOCK); } while (0)
  62 #define CODEC_WAVE_UNLOCK(LOCK) do { pthread_mutex_unlock(LOCK); } while (0)
  63
  64 enum {
  65    STATE_NONE = 0,
  66    STATE_READY,
  67    STATE_BEGIN,
  68    STATE_PLAY,
  69    STATE_STOP,
  70 };
  71
  72 typedef struct
  73 {
  74         char *ptr_current;
  75         int size;
  76         int transper_size;
  77         int handle;
  78         int period;
  79         int tone;
  80         int keytone;
  81         int repeat_count;
  82         int (*stop_cb)(int);
  83         int cb_param;
  84         int state;
  85         pthread_mutex_t mutex;
  86         pthread_mutex_t *codec_wave_mutex;
  87         int mode;
  88         int volume_config;
  89         int channels;
  90         int samplerate;
  91         int format;
  92         int handle_route;
  93         int priority;
  94         MMSourceType *source;
  95         char buffer[48000 / 1000 * SAMPLE_COUNT * 2 *2];//segmentation fault when above 22.05KHz stereo
  96         int gain, out, in, option;
  97 } wave_info_t;
  98
  99 static void _runing(void *param);
 100
 101 static int (*g_thread_pool_func)(void*, void (*)(void*)) = NULL;
 102
 103 int MMSoundPlugCodecWaveSetThreadPool(int (*func)(void*, void (*)(void*)))
 104 {
 105     debug_enter("(func : %p)\n", func);
 106     g_thread_pool_func = func;
 107     debug_leave("\n");
 108     return MM_ERROR_NONE;
 109 }
 110
 111 int* MMSoundPlugCodecWaveGetSupportTypes(void)
 112 {
 113     debug_enter("\n");
 114     static int suported[2] = {MM_SOUND_SUPPORTED_CODEC_WAVE, 0};
 115     debug_leave("\n");
 116     return suported;
 117 }
 118
 119 int MMSoundPlugCodecWaveParse(MMSourceType *source, mmsound_codec_info_t *info)
 120 {
 121         struct __riff_chunk
 122         {
 123                 long chunkid;
 124                 long chunksize;
 125                 long rifftype;
 126         };
 127
 128         struct __wave_chunk
 129         {
 130                 long chunkid;
 131                 long chunksize;
 132                 unsigned short compression;
 133                 unsigned short channels;
 134                 unsigned long samplerate;
 135                 unsigned long avgbytepersec;
 136                 unsigned short blockkalign;
 137                 unsigned short bitspersample;
 138         };
 139
 140         struct __data_chunk
 141         {
 142                 long chunkid;
 143                 long chunkSize;
 144         };
 145
 146         struct __riff_chunk *priff = NULL;
 147         struct __wave_chunk *pwav = NULL;
 148         struct __data_chunk *pdata = NULL;
 149 //      struct __fmt_chunk *pfmt = NULL;
 150
 151         int datalen = -1;
 152         char *data = NULL;
 153         unsigned int tSize;
 154
 155         debug_enter("\n");
 156
 157         data = MMSourceGetPtr(source);
 158         debug_msg("[CODEC WAV] source ptr :[%p]\n", data);
 159
 160         datalen = MMSourceGetCurSize(source);
 161         debug_msg("[CODEC WAV] source size :[0x%08X]\n", datalen);
 162
 163         priff = (struct __riff_chunk *) data;
 164
 165         /* Must be checked, Just for wav or not */
 166         if (priff->chunkid != RIFF_CHUNK_ID ||priff->rifftype != RIFF_CHUNK_TYPE)
 167                 return MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE;
 168
 169         if(priff->chunksize != datalen -8)
 170                 priff->chunksize = (datalen-8);
 171
 172         if (priff->chunkid != RIFF_CHUNK_ID ||priff->chunksize != datalen -8 ||priff->rifftype != RIFF_CHUNK_TYPE) {
 173                 debug_msg("[CODEC WAV] This contents is not RIFF file\n");
 174                 debug_msg("[CODEC WAV] cunkid : %ld, chunksize : %ld, rifftype : 0x%lx\n", priff->chunkid, priff->chunksize, priff->rifftype);
 175                 //debug_msg("[CODEC WAV] cunkid : %ld, chunksize : %d, rifftype : 0x%lx\n", RIFF_CHUNK_ID, datalen-8, RIFF_CHUNK_TYPE);
 176                 return MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE;
 177         }
 178
 179         debug_msg("[CODEC WAV] cunkid : %ld, chunksize : %ld, rifftype : 0x%lx\n", priff->chunkid, priff->chunksize, priff->rifftype);
 180         //debug_msg("[CODEC WAV] cunkid : %ld, chunksize : %d, rifftype : 0x%lx\n", RIFF_CHUNK_ID, datalen-8, RIFF_CHUNK_TYPE);
 181
 182         tSize = sizeof(struct __riff_chunk);
 183         pdata = (struct __data_chunk*)(data+tSize);
 184
 185         while (pdata->chunkid != FMT_CHUNK_ID && tSize < datalen) {
 186                 tSize += (pdata->chunkSize+8);
 187
 188                 if (tSize >= datalen) {
 189                         debug_warning("[CODEC WAV] Parsing finished : unable to find the Wave Format chunk\n");
 190                         return MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE;
 191                 } else {
 192                         pdata = (struct __data_chunk*)(data+tSize);
 193                 }
 194         }
 195         pwav = (struct __wave_chunk*)(data+tSize);
 196
 197         if (pwav->chunkid != FMT_CHUNK_ID ||
 198             pwav->compression != WAVE_CODE_PCM ||       /* Only supported PCM */
 199             pwav->avgbytepersec != pwav->samplerate * pwav->blockkalign ||
 200             pwav->blockkalign != (pwav->bitspersample >> 3)*pwav->channels) {
 201                 debug_msg("[CODEC WAV] This contents is not supported wave file\n");
 202                 debug_msg("[CODEC WAV] chunkid : 0x%lx, comp : 0x%x, av byte/sec : %lu, blockalign : %d\n", pwav->chunkid, pwav->compression, pwav->avgbytepersec, pwav->blockkalign);
 203                 return MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE;
 204         }
 205
 206         /* Only One data chunk support */
 207
 208         tSize += (pwav->chunksize+8);
 209         pdata = (struct __data_chunk *)(data+tSize);
 210
 211         while (pdata->chunkid != DATA_CHUNK_ID && tSize < datalen) {
 212                 tSize += (pdata->chunkSize+8);
 213                 if (tSize >= datalen) {
 214                         debug_warning("[CODEC WAV] Parsing finished : unable to find the data chunk\n");
 215                         return MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE;
 216                 } else {
 217                         pdata = (struct __data_chunk*)(data+tSize);
 218                 }
 219         }
 220
 221         info->codec = MM_SOUND_SUPPORTED_CODEC_WAVE;
 222         info->channels = pwav->channels;
 223         info->format = pwav->bitspersample;
 224         info->samplerate = pwav->samplerate;
 225         info->doffset = (tSize+8);
 226         info->size = pdata->chunkSize;
 227         info->duration = ((info->size)*1000)/pwav->avgbytepersec;
 228         debug_msg("info->size:%d info->duration: %d\n", info->size, info->duration);
 229
 230         debug_leave("\n");
 231         return MM_ERROR_NONE;
 232 }
 233
 234
 235
 236 int MMSoundPlugCodecWaveCreate(mmsound_codec_param_t *param, mmsound_codec_info_t *info, MMHandleType *handle)
 237 {
 238         wave_info_t* p = NULL;
 239         MMSourceType *source;
 240         static int keytone_period = 0;
 241
 242 #ifdef DEBUG_DETAIL
 243         debug_enter("\n");
 244 #endif
 245         debug_msg("period[%d] type[%s] ch[%d] format[%d] rate[%d] doffset[%d] priority[%d] repeat[%d] volume[%d] callback[%p] keytone[%08x] route[%d]\n",
 246                         keytone_period, (info->codec == MM_SOUND_SUPPORTED_CODEC_WAVE) ? "Wave" : "Unknown",
 247                         info->channels, info->format, info->samplerate, info->doffset, param->priority, param->repeat_count,
 248                         param->volume, param->stop_cb, param->keytone, param->handle_route);
 249
 250         source = param->source;
 251
 252         if (g_thread_pool_func == NULL) {
 253                 debug_error("[CODEC WAV] Need thread pool!\n");
 254                 return MM_ERROR_SOUND_INTERNAL;
 255         }
 256
 257         p = (wave_info_t *) malloc(sizeof(wave_info_t));
 258
 259         if (p == NULL) {
 260                 debug_error("[CODEC WAV] memory allocation failed\n");
 261                 return MM_ERROR_OUT_OF_MEMORY;
 262         }
 263
 264         memset(p, 0, sizeof(wave_info_t));
 265         p->handle = 0;
 266
 267         p->ptr_current = MMSourceGetPtr(source) + info->doffset;
 268
 269         p->size = info->size;
 270         p->transper_size = info->samplerate / 1000 * SAMPLE_COUNT * (info->format >> 3) * info->channels;
 271
 272         p->tone = param->tone;
 273         p->repeat_count = param ->repeat_count;
 274         p->stop_cb = param->stop_cb;
 275         p->cb_param = param->param;
 276         p->source = source;
 277         p->codec_wave_mutex = param->codec_wave_mutex;
 278         //      pthread_mutex_init(&p->mutex, NULL);
 279
 280         debug_msg("[CODEC WAV] transper_size : %d\n", p->transper_size);
 281         debug_msg("[CODEC WAV] size : %d\n", p->size);
 282
 283         if(info->duration < WAV_FILE_SAMPLE_PLAY_DURATION) {
 284                 p->mode = HANDLE_MODE_OUTPUT_LOW_LATENCY;
 285         } else {
 286                 p->mode = HANDLE_MODE_OUTPUT;
 287         }
 288
 289         p->priority = param->priority;
 290         p->volume_config = param->volume_config;
 291         p->channels = info->channels;
 292         p->samplerate = info->samplerate;
 293
 294         if(param->handle_route == MM_SOUND_HANDLE_ROUTE_USING_CURRENT) /* normal, solo */
 295                 p->handle_route = HANDLE_ROUTE_POLICY_OUT_AUTO;
 296         else /* loud solo */
 297                 p->handle_route = HANDLE_ROUTE_POLICY_OUT_HANDSET;
 298
 299         switch(info->format)
 300         {
 301         case 8:
 302                 p->format =  PA_SAMPLE_U8;
 303                 break;
 304         case 16:
 305                 p->format =  PA_SAMPLE_S16LE;
 306                 break;
 307         default:
 308                 p->format =  PA_SAMPLE_S16LE;
 309                 break;
 310         }
 311
 312         debug_msg("[CODEC WAV] PARAM mode : [%d]\n", p->mode);
 313         debug_msg("[CODEC WAV] PARAM channels : [%d]\n", p->channels);
 314         debug_msg("[CODEC WAV] PARAM samplerate : [%d]\n", p->samplerate);
 315         debug_msg("[CODEC WAV] PARAM format : [%d]\n", p->format);
 316         debug_msg("[CODEC WAV] PARAM volume type : [%x]\n", p->volume_config);
 317
 318         p->state = STATE_READY;
 319
 320         g_thread_pool_func(p, _runing);
 321         debug_msg("[CODEC WAV] Thread pool start\n");
 322         *handle = (MMHandleType)p;
 323
 324 #ifdef DEBUG_DETAIL
 325         debug_leave("\n");
 326 #endif
 327
 328         return MM_ERROR_NONE;
 329 }
 330
 331
 332 int MMSoundPlugCodecWavePlay(MMHandleType handle)
 333 {
 334         wave_info_t *p = (wave_info_t *) handle;
 335
 336         debug_enter("(handle %x)\n", handle);
 337
 338         if (p->size <= 0) {
 339                 debug_error("[CODEC WAV] end of file\n");
 340                 return MM_ERROR_END_OF_FILE;
 341         }
 342         debug_msg("[CODEC WAV] send start signal\n");
 343         p->state = STATE_BEGIN;
 344
 345         debug_leave("\n");
 346
 347         return MM_ERROR_NONE;
 348 }
 349
 350 static void _runing(void *param)
 351 {
 352         wave_info_t *p = (wave_info_t*) param;
 353         int nread = 0;
 354         char *org_cur = NULL;
 355         int org_size = 0;
 356         char *dummy = NULL;
 357         int ret;
 358         unsigned int volume_value = 0;
 359         int size;
 360
 361         pa_sample_spec ss;
 362          mm_sound_handle_route_info route_info;
 363
 364         mm_sound_device_in device_in_before = MM_SOUND_DEVICE_IN_NONE;
 365         mm_sound_device_in device_in_after = MM_SOUND_DEVICE_IN_NONE;
 366         mm_sound_device_out device_out_before = MM_SOUND_DEVICE_OUT_NONE;
 367         mm_sound_device_out device_out_after = MM_SOUND_DEVICE_OUT_NONE;
 368
 369         if (p == NULL) {
 370                 debug_error("[CODEC WAV] param is null\n");
 371                 return;
 372         }
 373
 374         debug_enter("[CODEC WAV] (Slot ID %d)\n", p->cb_param);
 375         CODEC_WAVE_LOCK(p->codec_wave_mutex);
 376
 377         /*
 378          * set path here
 379          */
 380         switch(p->handle_route)
 381         {
 382                 case MM_SOUND_HANDLE_ROUTE_SPEAKER:
 383                 case MM_SOUND_HANDLE_ROUTE_SPEAKER_NO_RESTORE:
 384                         debug_msg("[CODEC WAV] Save backup path\n");
 385                         __mm_sound_lock();
 386
 387                         /* get route info from pulseaudio */
 388                         /* MMSoundMgrPulseGetActiveDevice(&p->in, &p->out); */
 389                         mm_sound_get_audio_path(&device_in_before, &device_out_before);
 390                         /* if current out is not speaker, then force set path to speaker */
 391                         if (device_out_before != MM_SOUND_DEVICE_OUT_SPEAKER) {
 392                                 debug_msg("[CODEC WAV] current out is not SPEAKER, set path to SPEAKER now!!!\n");
 393                                 mm_sound_pa_corkall(1);
 394                                 mm_sound_set_sound_path_for_active_device(MM_SOUND_DEVICE_OUT_SPEAKER, MM_SOUND_DEVICE_IN_NONE);
 395                         }
 396
 397                         /* set route info */
 398                         route_info.device_in = MM_SOUND_DEVICE_IN_NONE;
 399                         route_info.device_out = MM_SOUND_DEVICE_OUT_SPEAKER;
 400                         route_info.policy = HANDLE_ROUTE_POLICY_OUT_HANDSET;
 401                         /* MMSoundMgrPulseSetActiveDevice(route_info_device_in, route_info.device_out); */
 402                         break;
 403                 case MM_SOUND_HANDLE_ROUTE_USING_CURRENT:
 404                 default:
 405                         break;
 406         }
 407
 408         ss.rate = p->samplerate;
 409         ss.channels = p->channels;
 410         ss.format = p->format;
 411         p->period = pa_sample_size(&ss) * ((ss.rate * 25) / 1000);
 412         p->handle = mm_sound_pa_open(p->mode, &route_info, p->priority, p->volume_config, &ss, NULL, &size);
 413         if(!p->handle) {
 414                 debug_critical("[CODEC WAV] Can not open audio handle\n");
 415                 CODEC_WAVE_UNLOCK(p->codec_wave_mutex);
 416                 if (p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER || p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER_NO_RESTORE) {
 417                         __mm_sound_unlock();
 418                 }
 419                 return;
 420         }
 421
 422         if (p->handle == 0) {
 423                 debug_critical("[CODEC WAV] audio_handle is not created !! \n");
 424                 CODEC_WAVE_UNLOCK(p->codec_wave_mutex);
 425                 free(p);
 426                 p = NULL;
 427                 return;
 428         }
 429
 430         /* Set the thread schedule */
 431         org_cur = p->ptr_current;
 432         org_size = p->size;
 433
 434         dummy = malloc(p->period);
 435         if(!dummy) {
 436                 debug_error("[CODEC WAV] not enough memory");
 437                 CODEC_WAVE_UNLOCK(p->codec_wave_mutex);
 438                 if (p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER || p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER_NO_RESTORE) {
 439                         __mm_sound_unlock();
 440                 }
 441                 return;
 442         }
 443         memset(dummy, 0, p->period);
 444         p->transper_size = p->period;
 445         /* stop_size = org_size > p->period ? org_size : p->period; */
 446
 447         debug_msg("[CODEC WAV] Wait start signal\n");
 448
 449         while(p->state == STATE_READY) {
 450                 usleep(4);
 451         }
 452
 453         debug_msg("[CODEC WAV] Recv start signal\n");
 454         debug_msg("[CODEC WAV] repeat : %d\n", p->repeat_count);
 455         debug_msg("[CODEC WAV] transper_size : %d\n", p->transper_size);
 456
 457         if (p->state != STATE_STOP) {
 458                 debug_msg("[CODEC WAV] Play start\n");
 459                 p->state = STATE_PLAY;
 460         } else {
 461                 debug_warning ("[CODEC WAV] state is already STATE_STOP\n");
 462         }
 463
 464         while (((p->repeat_count == -1)?(1):(p->repeat_count--)) && p->state == STATE_PLAY) {
 465                 while (p->state == STATE_PLAY && p->size > 0) {
 466                         if (p->size >= p->transper_size) {
 467                                 nread = p->transper_size;
 468                                 memcpy(p->buffer, p->ptr_current, nread);
 469                                 mm_sound_pa_write(p->handle, p->buffer, nread);
 470                                 p->ptr_current += nread;
 471                                 p->size -= nread;
 472                                 debug_msg("[CODEC WAV] Playing, nRead_data : %d Size : %d \n", nread, p->size);
 473                         } else {
 474                                 /* Write remain size */
 475                                 nread = p->size;
 476                                 memcpy(p->buffer, p->ptr_current, nread);
 477                                 mm_sound_pa_write(p->handle, p->buffer, nread);
 478                                 mm_sound_pa_write(p->handle, dummy, (p->transper_size-nread));
 479                                 p->ptr_current += nread;
 480                                 p->size = 0;
 481                         }
 482                 }
 483                 p->ptr_current = org_cur;
 484                 p->size = org_size;
 485         }
 486
 487         debug_msg("[CODEC WAV] End playing\n");
 488         p->state = STATE_STOP;
 489
 490         if (p->handle == 0) {
 491                 usleep(200000);
 492                 debug_warning("[CODEC WAV] audio already unrealize !!\n");
 493         } else {
 494                 /* usleep(75000); */
 495                 if(MM_ERROR_NONE != mm_sound_pa_drain(p->handle))
 496                         debug_error("mm_sound_pa_drain() failed\n");
 497
 498                 if(MM_ERROR_NONE != mm_sound_pa_close(p->handle)) {
 499                         debug_error("[CODEC WAV] Can not close audio handle\n");
 500                 } else {
 501                         p->handle = 0;
 502                 }
 503                 /*
 504                  * Restore path here
 505                  */
 506                 if (p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER) {
 507                         /* If current path is not same as before playing sound, restore the sound path */
 508                         if (device_out_before != MM_SOUND_DEVICE_OUT_SPEAKER) {
 509                                 mm_sound_set_sound_path_for_active_device(device_out_before, device_in_before);
 510                                 mm_sound_pa_corkall(0);
 511                         }
 512                 }
 513                 if (p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER || p->handle_route == MM_SOUND_HANDLE_ROUTE_SPEAKER_NO_RESTORE) {
 514                         __mm_sound_unlock();
 515                 }
 516         }
 517         CODEC_WAVE_UNLOCK(p->codec_wave_mutex);
 518
 519         p->handle = 0;
 520
 521         p->state = STATE_NONE;
 522
 523         free(dummy); dummy = NULL;
 524         if (p->stop_cb)
 525         {
 526                 debug_msg("[CODEC WAV] Play is finished, Now start callback\n");
 527                 p->stop_cb(p->cb_param);
 528         }
 529         debug_leave("\n");
 530 }
 531
 532
 533 int MMSoundPlugCodecWaveStop(MMHandleType handle)
 534 {
 535         wave_info_t *p = (wave_info_t*) handle;
 536
 537         if (!p) {
 538                 debug_error("The handle is null\n");
 539                 return MM_ERROR_SOUND_INTERNAL;
 540         }
 541         debug_msg("[CODEC WAV] Current state is state %d\n", p->state);
 542         debug_msg("[CODEC WAV] Handle 0x%08X stop requested\n", handle);
 543
 544         p->state = STATE_STOP;
 545
 546     return MM_ERROR_NONE;
 547 }
 548
 549 int MMSoundPlugCodecWaveDestroy(MMHandleType handle)
 550 {
 551         wave_info_t *p = (wave_info_t*) handle;
 552
 553         if (!p) {
 554                 debug_warning("Can not destroy handle :: handle is invalid");
 555                 return MM_ERROR_SOUND_INVALID_POINTER;
 556         }
 557
 558         if(p->source) {
 559                 mm_source_close(p->source);
 560                 free(p->source); p->source = NULL;
 561         }
 562
 563         free(p); p = NULL;
 564
 565         return MM_ERROR_NONE;
 566 }
 567
 568 EXPORT_API
 569 int MMSoundGetPluginType(void)
 570 {
 571     return MM_SOUND_PLUGIN_TYPE_CODEC;
 572 }
 573
 574 EXPORT_API
 575 int MMSoundPlugCodecGetInterface(mmsound_codec_interface_t *intf)
 576 {
 577     intf->GetSupportTypes   = MMSoundPlugCodecWaveGetSupportTypes;
 578     intf->Parse             = MMSoundPlugCodecWaveParse;
 579     intf->Create            = MMSoundPlugCodecWaveCreate;
 580     intf->Destroy           = MMSoundPlugCodecWaveDestroy;
 581     intf->Play              = MMSoundPlugCodecWavePlay;
 582     intf->Stop              = MMSoundPlugCodecWaveStop;
 583     intf->SetThreadPool     = MMSoundPlugCodecWaveSetThreadPool;
 584
 585     return MM_ERROR_NONE;
 586 }
 587
 588