formats/ffmpeg/mm_file_format_ffmpeg.c

   1 /*
   2  * libmm-fileinfo
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Haejeong Kim <backto.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 #include <string.h>
  23 #include <stdlib.h>
  24
  25 #include <libavformat/avformat.h>
  26 #include <libavcodec/avcodec.h>
  27 #ifdef __MMFILE_FFMPEG_V085__
  28 #include <libswscale/swscale.h>
  29 #endif
  30 #include <mm_error.h>
  31 #include <mm_types.h>
  32 #include "mm_debug.h"
  33 #include "mm_file_formats.h"
  34 #include "mm_file_utils.h"
  35 #include "mm_file_format_ffmpeg.h"
  36
  37 #include "mm_file_format_ffmpeg_mem.h"
  38 #include <sys/time.h>
  39
  40 #define _SHORT_MEDIA_LIMIT              2000    /* under X seconds duration*/
  41
  42 extern int      img_convert (AVPicture *dst, int dst_pix_fmt, const AVPicture *src, int src_pix_fmt,int src_width, int src_height);
  43
  44 /* internal functions */
  45 static int _is_good_pgm (unsigned char *buf, int wrap, int xsize, int ysize);
  46 #ifdef MMFILE_FORMAT_DEBUG_DUMP
  47 static void _save_pgm (unsigned char *buf, int wrap, int xsize, int ysize, char *filename);
  48 #endif
  49 #ifdef __MMFILE_TEST_MODE__
  50 static void _dump_av_packet (AVPacket *pkt);
  51 #endif
  52
  53 static int      _get_video_fps (int frame_cnt, int duration, AVRational r_frame_rate, int is_roundup);
  54 static int      _get_first_good_video_frame (AVFormatContext *pFormatCtx, AVCodecContext *pCodecCtx, int videoStream, AVFrame **pFrame);
  55
  56 static int      ConvertVideoCodecEnum (int AVVideoCodecID);
  57 static int      ConvertAudioCodecEnum (int AVAudioCodecID);
  58
  59 /* plugin manadatory API */
  60 int mmfile_format_read_stream_ffmpg (MMFileFormatContext * formatContext);
  61 int mmfile_format_read_frame_ffmpg  (MMFileFormatContext *formatContext, unsigned int timestamp, MMFileFormatFrame *frame);
  62 int mmfile_format_read_tag_ffmpg    (MMFileFormatContext *formatContext);
  63 int mmfile_format_close_ffmpg       (MMFileFormatContext *formatContext);
  64 static int getMimeType(int formatId, char *mimeType);
  65
  66
  67
  68 EXPORT_API
  69 int mmfile_format_open_ffmpg (MMFileFormatContext *formatContext)
  70 {
  71         AVFormatContext     *pFormatCtx = NULL;
  72         AVInputFormat       *grab_iformat = NULL;
  73         int ret = 0;
  74         int i;
  75         char ffmpegFormatName[MMFILE_FILE_FMT_MAX_LEN] = {0,};
  76         char mimeType[MMFILE_MIMETYPE_MAX_LEN] = {0,};
  77
  78         formatContext->ReadStream   = mmfile_format_read_stream_ffmpg;
  79         formatContext->ReadFrame    = mmfile_format_read_frame_ffmpg;
  80         formatContext->ReadTag      = mmfile_format_read_tag_ffmpg;
  81         formatContext->Close        = mmfile_format_close_ffmpg;
  82
  83 #ifdef __MMFILE_TEST_MODE__
  84         debug_msg ("ffmpeg version: %d\n", avformat_version ());
  85         /**
  86          * FFMPEG DEBUG LEVEL
  87          *  AV_LOG_QUIET -1
  88          *  AV_LOG_FATAL 0
  89          *  AV_LOG_ERROR 0
  90          *  AV_LOG_WARNING 1
  91          *  AV_LOG_INFO 1
  92          *  AV_LOG_VERBOSE 1
  93          *  AV_LOG_DEBUG 2
  94      */
  95         av_log_set_level (AV_LOG_DEBUG);
  96 #else
  97         av_log_set_level (AV_LOG_QUIET);
  98 #endif
  99
 100         av_register_all();
 101
 102         if (formatContext->filesrc->type  == MM_FILE_SRC_TYPE_MEMORY) {
 103
 104 #ifdef __MMFILE_FFMPEG_V085__
 105                 ffurl_register_protocol(&MMFileMEMProtocol, sizeof (URLProtocol));
 106 #else
 107                 register_protocol (&MMFileMEMProtocol);
 108 #endif
 109                 if(getMimeType(formatContext->filesrc->memory.format,mimeType)< 0) {
 110                         debug_error ("error: Error in MIME Type finding\n");
 111                         return MMFILE_FORMAT_FAIL;
 112                 }
 113
 114                 memset (ffmpegFormatName, 0x00, MMFILE_FILE_FMT_MAX_LEN);
 115
 116                 ret = mmfile_util_get_ffmpeg_format (mimeType,ffmpegFormatName);
 117
 118                 if (MMFILE_UTIL_SUCCESS != ret) {
 119                         debug_error ("error: mmfile_util_get_ffmpeg_format\n");
 120                         return MMFILE_FORMAT_FAIL;
 121                 }
 122
 123                 grab_iformat = av_find_input_format (ffmpegFormatName);
 124
 125                 if (NULL == grab_iformat) {
 126                         debug_error ("error: cannot find format\n");
 127                         goto exception;
 128                 }
 129
 130 #ifdef __MMFILE_FFMPEG_V085__
 131                 ret = avformat_open_input (&pFormatCtx, formatContext->uriFileName, grab_iformat, NULL);
 132 #else
 133                 ret = av_open_input_file (&pFormatCtx, formatContext->uriFileName, grab_iformat, 0, NULL);
 134 #endif
 135                 if (ret < 0) {
 136                         debug_error("error: cannot open %s %d\n", formatContext->uriFileName, ret);
 137                         goto exception;
 138                 }
 139                 formatContext->privateFormatData = pFormatCtx;
 140         }
 141
 142         if (formatContext->filesrc->type  == MM_FILE_SRC_TYPE_FILE) {
 143
 144                 if (formatContext->isdrm == MM_FILE_DRM_OMA) {
 145                         debug_error ("error: drm content\n");
 146                         goto exception;
 147                 } else {
 148 HANDLING_DRM_DIVX:
 149 #ifdef __MMFILE_FFMPEG_V085__
 150                         ret = avformat_open_input(&pFormatCtx, formatContext->filesrc->file.path, NULL, NULL);
 151 #else
 152                         ret = av_open_input_file(&pFormatCtx, formatContext->filesrc->file.path, NULL, 0, NULL);
 153 #endif
 154                         if (ret < 0) {
 155                                 debug_error("error: cannot open %s %d\n", formatContext->filesrc->file.path, ret);
 156                                 goto exception;
 157                         }
 158                         formatContext->privateFormatData = pFormatCtx;
 159                 }
 160         }
 161
 162         if (!pFormatCtx || !(pFormatCtx->nb_streams > 0)) {
 163                 debug_warning ("failed to find av stream. maybe corrupted data.\n");
 164                 goto exception;
 165         }
 166
 167         #ifdef __MMFILE_TEST_MODE__
 168         debug_msg ("number of stream: %d\n", pFormatCtx->nb_streams);
 169         #endif
 170
 171         formatContext->videoTotalTrackNum = 0;
 172         formatContext->audioTotalTrackNum = 0;
 173
 174         for(i = 0; i < pFormatCtx->nb_streams; i++) {
 175 #ifdef __MMFILE_FFMPEG_V085__
 176                 if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 177                         #ifdef __MMFILE_TEST_MODE__
 178                         debug_msg ("FFMPEG video codec id: 0x%08X\n", pFormatCtx->streams[i]->codec->codec_id);
 179                         #endif
 180                         formatContext->videoTotalTrackNum += 1;
 181                 }
 182                 if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
 183                         #ifdef __MMFILE_TEST_MODE__
 184                         debug_msg ("FFMPEG audio codec id: 0x%08X\n", pFormatCtx->streams[i]->codec->codec_id);
 185                         #endif
 186                         formatContext->audioTotalTrackNum += 1;
 187                 }
 188 #else
 189                 if (pFormatCtx->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO) {
 190                         #ifdef __MMFILE_TEST_MODE__
 191                         debug_msg ("FFMPEG video codec id: 0x%08X\n", pFormatCtx->streams[i]->codec->codec_id);
 192                         #endif
 193                         formatContext->videoTotalTrackNum += 1;
 194                 }
 195                 if (pFormatCtx->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO) {
 196                         #ifdef __MMFILE_TEST_MODE__
 197                         debug_msg ("FFMPEG audio codec id: 0x%08X\n", pFormatCtx->streams[i]->codec->codec_id);
 198                         #endif
 199                         formatContext->audioTotalTrackNum += 1;
 200                 }
 201 #endif
 202         }
 203
 204         #ifdef __MMFILE_TEST_MODE__
 205         debug_msg ("format: %s (%s)\n", pFormatCtx->iformat->name, pFormatCtx->iformat->long_name);
 206         #ifdef __MMFILE_FFMPEG_V085__
 207         av_dump_format (pFormatCtx, 0, formatContext->filesrc->file.path, 0);
 208         #else
 209         dump_format (pFormatCtx, 0, formatContext->filesrc->file.path, 0);
 210         #endif
 211         #endif
 212
 213         return MMFILE_FORMAT_SUCCESS;
 214
 215 exception: /* fail to get content information */
 216
 217         mmfile_format_close_ffmpg (formatContext);
 218         formatContext->privateFormatData = NULL;
 219
 220         return MMFILE_FORMAT_FAIL;
 221 }
 222
 223
 224 EXPORT_API
 225 int mmfile_format_read_stream_ffmpg (MMFileFormatContext * formatContext)
 226 {
 227         AVFormatContext     *pFormatCtx = NULL;
 228         AVCodecContext      *pAudioCodecCtx = NULL;
 229         AVCodecContext      *pVideoCodecCtx = NULL;
 230
 231         MMFileFormatStream  *videoStream = NULL;
 232         MMFileFormatStream  *audioStream = NULL;
 233         int ret = 0;
 234
 235         if (NULL == formatContext || NULL == formatContext->privateFormatData) {
 236                 debug_error ("invalid param\n");
 237                 return MMFILE_FORMAT_FAIL;
 238         }
 239
 240         pFormatCtx = formatContext->privateFormatData;
 241
 242         /**
 243          *@important if data is corrupted, occur segment fault by av_find_stream_info().
 244          *                      - fixed 2009-06-25.
 245          */
 246 #ifdef __MMFILE_FFMPEG_V100__
 247         ret = avformat_find_stream_info (pFormatCtx, NULL);
 248 #else
 249         ret = av_find_stream_info (pFormatCtx);
 250 #endif
 251         if ( ret < 0 ) {
 252                 debug_warning ("failed to find stream info. errcode = %d\n", ret);
 253                 goto exception;
 254         }
 255
 256         #ifdef __MMFILE_TEST_MODE__
 257         debug_msg ("FFMPEG: dur %lld, start %lld\n", pFormatCtx->duration, pFormatCtx->start_time);
 258         #endif
 259
 260         /**
 261          *@note asf has long duration bug. and Some content's start time is wrong(negative number).
 262          */
 263         if(pFormatCtx->start_time < 0) {
 264                 debug_warning ("Wrong Start time = %lld\n", pFormatCtx->start_time);
 265                 formatContext->duration = (long long)(pFormatCtx->duration) * 1000 / AV_TIME_BASE;
 266         }
 267         else {
 268                 formatContext->duration = (long long)(pFormatCtx->duration + pFormatCtx->start_time) * 1000 / AV_TIME_BASE;
 269         }
 270
 271         formatContext->videoStreamId = -1;
 272         formatContext->audioStreamId = -1;
 273         formatContext->nbStreams = 0;
 274
 275         int i = 0;
 276         for ( i = 0; i < pFormatCtx->nb_streams; i++ ) {
 277 #ifdef __MMFILE_FFMPEG_V085__
 278                 if ( pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 279 #else
 280                 if ( pFormatCtx->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO) {
 281 #endif
 282                         if (formatContext->videoStreamId == -1) {
 283                                 videoStream = mmfile_malloc (sizeof(MMFileFormatStream));
 284                                 if (NULL == videoStream) {
 285                                         debug_error ("mmfile_malloc error\n");
 286                                         goto exception;
 287                                 }
 288
 289                                 videoStream->streamType = MMFILE_VIDEO_STREAM;
 290                                 formatContext->streams[MMFILE_VIDEO_STREAM] = videoStream;
 291                                 formatContext->nbStreams += 1;
 292                                 formatContext->videoStreamId = i;
 293
 294                                 pVideoCodecCtx = pFormatCtx->streams[i]->codec;
 295                                 if (pVideoCodecCtx) {
 296                                         videoStream->codecId            = ConvertVideoCodecEnum (pVideoCodecCtx->codec_id);
 297                                         if (videoStream->codecId == MM_VIDEO_CODEC_NONE) {
 298                                                 debug_error("Proper codec is not found in [%d] stream", i);
 299                                                 formatContext->videoStreamId = -1;
 300                                                 mmfile_free(videoStream);
 301                                                 formatContext->streams[MMFILE_VIDEO_STREAM] = NULL;
 302                                                 videoStream = NULL;
 303                                                 continue;
 304                                         }
 305
 306                                         /**
 307                                          * Get FPS
 308                                          * 1. try to get average fps of video stream.
 309                                          * 2. if (1) failed, try to get fps of media container.
 310                                          */
 311                                         videoStream->framePerSec        = _get_video_fps (pFormatCtx->streams[i]->nb_frames,
 312                                                                                                                                         pFormatCtx->streams[i]->duration,
 313                                                                                                                                         pFormatCtx->streams[i]->time_base,
 314                                                                                                                                         1);
 315
 316                                         if (videoStream->framePerSec == 0)
 317                                                 videoStream->framePerSec = av_q2d (pFormatCtx->streams[i]->r_frame_rate);
 318
 319                                         videoStream->width                      = pVideoCodecCtx->width;
 320                                         videoStream->height                     = pVideoCodecCtx->height;
 321                                         videoStream->bitRate            = pVideoCodecCtx->bit_rate;
 322                                 }
 323                         }
 324                 }
 325 #ifdef __MMFILE_FFMPEG_V085__
 326                 else if ( pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO ) {
 327 #else
 328                 else if ( pFormatCtx->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO ) {
 329 #endif
 330                         if (formatContext->audioStreamId == -1) {
 331                                 audioStream = mmfile_malloc (sizeof(MMFileFormatStream));
 332                                 if (NULL == audioStream) {
 333                                         debug_error ("mmfile_malloc error\n");
 334                                         goto exception;
 335                                 }
 336
 337                                 audioStream->streamType = MMFILE_AUDIO_STREAM;
 338                                 formatContext->streams[MMFILE_AUDIO_STREAM] = audioStream;
 339                                 formatContext->nbStreams += 1;
 340                                 formatContext->audioStreamId = i;
 341
 342                                 pAudioCodecCtx = pFormatCtx->streams[i]->codec;
 343                                 if (pAudioCodecCtx) {
 344                                         audioStream->codecId            = ConvertAudioCodecEnum (pAudioCodecCtx->codec_id);
 345                                         audioStream->bitRate            = pAudioCodecCtx->bit_rate;
 346                                         audioStream->nbChannel          = pAudioCodecCtx->channels;
 347                                         audioStream->samplePerSec       = pAudioCodecCtx->sample_rate;
 348                                 }
 349                         }
 350                 }
 351         }
 352
 353         if ( formatContext->nbStreams == 0 ) {
 354                 debug_error("error: there is no audio and video track\n");
 355                 goto exception;
 356         }
 357
 358         #ifdef __MMFILE_TEST_MODE__
 359         mmfile_format_print_contents (formatContext);
 360         #endif
 361
 362         return MMFILE_FORMAT_SUCCESS;
 363
 364 exception:
 365         if (videoStream) {
 366                 mmfile_free (videoStream);
 367                 formatContext->streams[MMFILE_VIDEO_STREAM] = NULL;
 368         }
 369
 370         if (audioStream) {
 371                 mmfile_free (audioStream);
 372                 formatContext->streams[MMFILE_AUDIO_STREAM] = NULL;
 373         }
 374
 375         if (pFormatCtx) {
 376 #ifdef __MMFILE_FFMPEG_V100__
 377                 avformat_close_input (&pFormatCtx);
 378 #else
 379                 av_close_input_file (pFormatCtx);
 380 #endif
 381                 formatContext->privateFormatData = NULL;
 382         }
 383
 384         formatContext->audioTotalTrackNum = 0;
 385         formatContext->videoTotalTrackNum = 0;
 386         formatContext->nbStreams = 0;
 387
 388         return MMFILE_FORMAT_FAIL;
 389 }
 390
 391 #define DATA_LENGTH 4
 392 #define POS_OF_MIME_LEN DATA_LENGTH
 393 #define CONVERT_TO_INT(dest, src) {dest = 0; dest |= (0 |src[0] << 24) | (0 | src[1] << 16) | (0 | src[2] << 8) | (0 | src[3]);}
 394
 395 EXPORT_API
 396 int mmfile_format_read_tag_ffmpg (MMFileFormatContext *formatContext)
 397 {
 398         AVFormatContext     *pFormatCtx = NULL;
 399
 400         if (NULL == formatContext || NULL == formatContext->privateFormatData) {
 401                 debug_error ("invalid param\n");
 402                 return MMFILE_FORMAT_FAIL;
 403         }
 404
 405         pFormatCtx = formatContext->privateFormatData;
 406
 407         if (formatContext->formatType == MM_FILE_FORMAT_3GP ||formatContext->formatType == MM_FILE_FORMAT_MP4) {
 408                 MMFileUtilGetMetaDataFromMP4 (formatContext);
 409         }
 410
 411 #ifdef __MMFILE_FFMPEG_V085__
 412 /*metadata extracted by ffmpeg*/
 413         int idx = 0;
 414
 415         if(pFormatCtx != NULL) {
 416                 for(idx = 0; idx < pFormatCtx->nb_streams + 1; idx++) {
 417                         AVDictionary *metainfo = NULL;
 418                         AVStream *st = NULL;
 419
 420                         if(idx < pFormatCtx->nb_streams) {      //Check metadata of normal stream like audio, video, video cover art(cover art saved in new stream). refer to mov_read_covr() in ffmpeg.
 421                                 st = pFormatCtx->streams[idx];
 422                                         if(st != NULL)
 423                                                 metainfo = st->metadata;
 424                         } else {        //Check metadata of Content
 425                                 if(pFormatCtx->metadata != NULL) {
 426                                         metainfo = pFormatCtx->metadata;
 427                                 } else {
 428                                         continue;
 429                                 }
 430                         }
 431
 432                         /*refer to mov_read_covr() in ffmpeg.*/
 433                         if(st != NULL) {
 434                                 AVPacket pkt = st->attached_pic;
 435                                 int codec_id = st->codec->codec_id;
 436
 437                                 if((pkt.data != NULL) && (pkt.size > 0)) {
 438                                         /*Set mime type*/
 439                                         if (formatContext->artworkMime) mmfile_free (formatContext->artworkMime);
 440
 441                                         if(codec_id == AV_CODEC_ID_MJPEG)
 442                                                 formatContext->artworkMime = mmfile_strdup("image/jpeg");
 443                                         else if(codec_id == AV_CODEC_ID_PNG)
 444                                                 formatContext->artworkMime = mmfile_strdup("image/png");
 445                                         else if(codec_id == AV_CODEC_ID_BMP)
 446                                                 formatContext->artworkMime = mmfile_strdup("image/bmp");
 447                                         else
 448                                                 debug_error ("Unknown cover type: 0x%x\n", codec_id);
 449
 450                                         /*Copy artwork*/
 451                                         if (formatContext->artwork)     mmfile_free (formatContext->artwork);
 452
 453                                         formatContext->artworkSize = pkt.size;
 454                                         formatContext->artwork = mmfile_malloc (pkt.size);
 455                                         memcpy (formatContext->artwork, pkt.data, pkt.size);
 456                                 }
 457                         }
 458
 459                         if(metainfo != NULL) {
 460                                 AVDictionaryEntry *tag = NULL;
 461                                 while((tag=av_dict_get(metainfo, "", tag, AV_DICT_IGNORE_SUFFIX))) {
 462                                         if(tag->key != NULL) {
 463                                                 if(!strcasecmp(tag->key, "title")) {
 464                                                         if (formatContext->title)       free (formatContext->title);
 465                                                         formatContext->title = mmfile_strdup (tag->value);
 466                                                 } else if(!strcasecmp(tag->key, "artist")) {
 467                                                         if (formatContext->artist)      free (formatContext->artist);
 468                                                         formatContext->artist = mmfile_strdup (tag->value);
 469                                                 } else if(!strcasecmp(tag->key, "composer")) {
 470                                                         if (formatContext->composer)    free (formatContext->composer);
 471                                                         formatContext->composer = mmfile_strdup (tag->value);
 472                                                 } else if(!strcasecmp(tag->key, "album")) {
 473                                                         if (formatContext->album)       free (formatContext->album);
 474                                                         formatContext->album = mmfile_strdup (tag->value);
 475                                                 } else if(!strcasecmp(tag->key, "copyright")) {
 476                                                         if (formatContext->copyright)   free (formatContext->copyright);
 477                                                         formatContext->copyright = mmfile_strdup (tag->value);
 478                                                 } else if(!strcasecmp(tag->key, "comment")) {
 479                                                         if (formatContext->comment)     free (formatContext->comment);
 480                                                         formatContext->comment = mmfile_strdup (tag->value);
 481                                                 } else if(!strcasecmp(tag->key, "description")) {
 482                                                         if (formatContext->description) free (formatContext->description);
 483                                                         formatContext->description = mmfile_strdup (tag->value);
 484                                                 } else if(!strcasecmp(tag->key, "genre")) {
 485                                                         if (formatContext->genre)       free (formatContext->genre);
 486                                                         formatContext->genre = mmfile_strdup (tag->value);
 487                                                 } else if(!strcasecmp(tag->key, "date")) {
 488                                                         if (formatContext->year)        free (formatContext->year);
 489                                                         formatContext->year = mmfile_strdup (tag->value);
 490                                                 } else if((!strcasecmp(tag->key, "track")) || (!strcasecmp(tag->key, "tracknumber"))) {
 491                                                         if (formatContext->tagTrackNum) free (formatContext->tagTrackNum);
 492                                                         formatContext->tagTrackNum = mmfile_strdup (tag->value);
 493                                                 } else if(!strcasecmp(tag->key, "lyrics")) {
 494                                                         if (formatContext->unsyncLyrics)        free (formatContext->unsyncLyrics);
 495                                                         formatContext->unsyncLyrics= mmfile_strdup (tag->value);
 496                                                 } else if(!strcasecmp(tag->key, "rotate")) {    //can be "90", "180", "270"
 497                                                         if (formatContext->rotate)      free (formatContext->rotate);
 498                                                         formatContext->rotate= mmfile_strdup (tag->value);
 499                                                 } else if(!strcasecmp(tag->key, "metadata_block_picture")) {
 500                                                         gsize len = 0;
 501                                                         guchar *meta_data = NULL;
 502
 503                                                         meta_data = g_base64_decode(tag->value, &len);
 504                                                         if (meta_data != NULL) {
 505                                                                 /* in METADATA_BLOCK_PICTURE,
 506                                                                 the length of mime type and  the length of description are flexible,
 507                                                                 so, we have to get the length of their for getting correct postion of picture data. */
 508                                                                 int mime_len = 0;
 509                                                                 int description_len = 0;
 510                                                                 int data_len = 0;
 511                                                                 int current_pos = 0;
 512                                                                 unsigned char current_data[DATA_LENGTH] = {0};
 513
 514                                                                 /* get length of mime_type */
 515                                                                 memcpy(current_data, meta_data + POS_OF_MIME_LEN, DATA_LENGTH);
 516                                                                 CONVERT_TO_INT(mime_len, current_data);
 517
 518                                                                 /* get length of description */
 519                                                                 current_pos =  mime_len + (DATA_LENGTH * 2); /*current position is length of description */
 520                                                                 memcpy(current_data, meta_data + current_pos, DATA_LENGTH);
 521                                                                 CONVERT_TO_INT(description_len, current_data);
 522
 523                                                                 /* get length of picture data */
 524                                                                 current_pos = mime_len  + description_len + (DATA_LENGTH * 7); /*current position is length of picture data */
 525                                                                 memcpy(current_data, meta_data + current_pos, DATA_LENGTH);
 526                                                                 CONVERT_TO_INT(data_len, current_data);
 527
 528                                                                 /* set the size of art work */
 529                                                                 formatContext->artworkSize = data_len;
 530
 531                                                                 /* set mime type */
 532                                                                 current_pos = POS_OF_MIME_LEN + DATA_LENGTH; /*current position is mime type */
 533                                                                 if (formatContext->artworkMime) mmfile_free (formatContext->artworkMime);
 534                                                                 formatContext->artworkMime = strndup((const char*)meta_data + current_pos, mime_len);
 535
 536                                                                 /* set art work data */
 537                                                                 current_pos = mime_len  + description_len + (DATA_LENGTH * 8); /*current position is picture data */
 538                                                                 if (formatContext->artwork) mmfile_free (formatContext->artwork);
 539                                                                 formatContext->artwork = mmfile_malloc (data_len);
 540                                                                 memcpy(formatContext->artwork, meta_data + current_pos, data_len);
 541
 542                                                                 g_free(meta_data);
 543                                                         }
 544                                                 } else {
 545                                                         debug_log("Not support metadata. [%s:%s]", tag->key, tag->value);
 546                                                 }
 547                                         }
 548                                 }
 549                         }
 550 #ifdef  __MMFILE_TEST_MODE__
 551                         mmfile_format_print_tags (formatContext);
 552 #endif
 553                 }
 554         }
 555 #else
 556         if (pFormatCtx->title[0])               {
 557                 if (formatContext->title)
 558                         free (formatContext->title);
 559                 formatContext->title = mmfile_strdup (pFormatCtx->title);
 560         }
 561         if (pFormatCtx->author[0]){
 562                 if (formatContext->author)
 563                         free (formatContext->author);
 564                 formatContext->author = mmfile_strdup (pFormatCtx->author);
 565         }
 566         if (pFormatCtx->copyright[0])   {
 567                 if (formatContext->copyright)
 568                         free (formatContext->copyright);
 569                 formatContext->copyright = mmfile_strdup (pFormatCtx->copyright);
 570         }
 571         if (pFormatCtx->comment[0])             {
 572                 if (formatContext->comment)
 573                         free (formatContext->comment);
 574                 formatContext->comment = mmfile_strdup (pFormatCtx->comment);
 575         }
 576         if (pFormatCtx->album[0])               {
 577                 if (formatContext->album)
 578                         free (formatContext->album);
 579                 formatContext->album = mmfile_strdup (pFormatCtx->album);
 580         }
 581         if (pFormatCtx->genre[0])               {
 582                 if (formatContext->genre)
 583                         free (formatContext->genre);
 584                 formatContext->genre = mmfile_strdup (pFormatCtx->genre);
 585         }
 586
 587         if (pFormatCtx->year) {
 588                 char year[10] = {0,};
 589                 snprintf (year, 10, "%d", pFormatCtx->year);
 590                 year[9] = '\0';
 591                 if (formatContext->year)
 592                         free (formatContext->year);
 593                 formatContext->year = mmfile_strdup (year);
 594         }
 595
 596         if (pFormatCtx->track) {
 597                 char tracknum[10] = {0,};
 598                 snprintf (tracknum, 10, "%d", pFormatCtx->track);
 599                 tracknum[9] = '\0';
 600                 if (formatContext->tagTrackNum)
 601                         free (formatContext->tagTrackNum);
 602                 formatContext->tagTrackNum = mmfile_strdup (tracknum);
 603         }
 604 #endif
 605
 606         return MMFILE_FORMAT_SUCCESS;
 607 }
 608
 609
 610 EXPORT_API
 611 int mmfile_format_read_frame_ffmpg  (MMFileFormatContext *formatContext, unsigned int timestamp, MMFileFormatFrame *frame)
 612 {
 613         AVFormatContext *pFormatCtx = NULL;
 614         AVCodecContext  *pVideoCodecCtx = NULL;
 615         AVCodec                 *pVideoCodec = NULL;
 616         AVFrame                 *pFrame = NULL;
 617         AVFrame                 *pFrameRGB = NULL;
 618
 619         int width;
 620         int height;
 621         int numBytes = 0;
 622         int ret = 0;
 623
 624         if (NULL == formatContext ||
 625                 NULL == frame ||
 626                 NULL == formatContext->privateFormatData ||
 627                 formatContext->videoTotalTrackNum <= 0) {
 628
 629                 debug_error ("invalid param\n");
 630                 return MMFILE_FORMAT_FAIL;
 631         }
 632
 633         pFormatCtx = formatContext->privateFormatData;
 634
 635         if (formatContext->videoStreamId != -1) {
 636                 pVideoCodecCtx = pFormatCtx->streams[formatContext->videoStreamId]->codec;
 637                 if (NULL == pVideoCodecCtx) {
 638                         debug_error ("invalid param\n");
 639                         return MMFILE_FORMAT_FAIL;
 640                 }
 641
 642                 pVideoCodec = avcodec_find_decoder (pVideoCodecCtx->codec_id);
 643                 if ( NULL == pVideoCodec ) {
 644                         debug_error ("error: avcodec_find_decoder failed\n");
 645                         return MMFILE_FORMAT_FAIL;
 646                 }
 647
 648                 #ifdef __MMFILE_TEST_MODE__
 649                 debug_msg ("flag: 0x%08X\n", pVideoCodec->capabilities);
 650                 // debug_msg ("  DRAW_HORIZ_BAND : %d\n", pVideoCodec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND ? 1 : 0);
 651                 // debug_msg ("  DR1             : %d\n", pVideoCodec->capabilities & CODEC_CAP_DR1 ? 1 : 0);
 652                 // debug_msg ("  PARSE_ONLY      : %d\n", pVideoCodec->capabilities & CODEC_CAP_PARSE_ONLY ? 1 : 0);
 653                 // debug_msg ("  TRUNCATED       : %d\n", pVideoCodec->capabilities & CODEC_CAP_TRUNCATED ? 1 : 0);
 654                 // debug_msg ("  HWACCEL         : %d\n", pVideoCodec->capabilities & CODEC_CAP_HWACCEL ? 1 : 0);
 655                 // debug_msg ("  DELAY           : %d\n", pVideoCodec->capabilities & CODEC_CAP_DELAY ? 1 : 0);
 656                 // debug_msg ("  SMALL_LAST_FRAME: %d\n", pVideoCodec->capabilities & CODEC_CAP_SMALL_LAST_FRAME ? 1 : 0);
 657                 // debug_msg ("  HWACCEL_VDPAU   : %d\n", pVideoCodec->capabilities & CODEC_CAP_HWACCEL_VDPAU ? 1 : 0);
 658                 #endif
 659
 660                 if (pVideoCodec->capabilities & CODEC_CAP_TRUNCATED) {
 661                         pVideoCodecCtx->flags |= CODEC_FLAG_TRUNCATED;
 662                 }
 663
 664                 /*set workaround bug flag*/
 665                 pVideoCodecCtx->workaround_bugs = FF_BUG_AUTODETECT;
 666 #ifdef __MMFILE_FFMPEG_V100__
 667                 ret = avcodec_open2 (pVideoCodecCtx, pVideoCodec, NULL);
 668 #else
 669                 ret = avcodec_open (pVideoCodecCtx, pVideoCodec);
 670 #endif
 671                 if (ret < 0) {
 672                         debug_error ("error: avcodec_open fail.\n");
 673                         return MMFILE_FORMAT_FAIL;
 674                 }
 675
 676                 pFrameRGB = avcodec_alloc_frame ();
 677
 678                 if (!pFrameRGB) {
 679                         debug_error ("error: pFrame or pFrameRGB is NULL\n");
 680                         ret = MMFILE_FORMAT_FAIL;
 681                         goto exception;
 682                 }
 683
 684                 /* search & decode */
 685                 // seek_ts = formatContext->duration > _SHORT_MEDIA_LIMIT ? seek_ts : 0;        /*if short media, seek first key frame*/
 686                 ret = _get_first_good_video_frame (pFormatCtx, pVideoCodecCtx, formatContext->videoStreamId, &pFrame);
 687                 if ( ret != MMFILE_FORMAT_SUCCESS ) {
 688                         debug_error ("error: get key frame\n");
 689                         ret = MMFILE_FORMAT_FAIL;
 690                         goto exception;
 691                 }
 692
 693                 #ifdef __MMFILE_TEST_MODE__
 694                 debug_msg ("Video default resolution = [%dx%d]\n", pVideoCodecCtx->coded_width, pVideoCodecCtx->coded_height);
 695                 debug_msg ("Video coded resolution = [%dx%d]\n", pVideoCodecCtx->width, pVideoCodecCtx->height);
 696                 #endif
 697
 698                 /*sometimes, ffmpeg's width/height is wrong*/
 699                 #if 0   /*coded_width/height sometimes wrong. so use width/height*/
 700                 width = pVideoCodecCtx->coded_width == 0 ? pVideoCodecCtx->width : pVideoCodecCtx->coded_width;
 701                 height = pVideoCodecCtx->coded_height == 0 ? pVideoCodecCtx->height : pVideoCodecCtx->coded_height;
 702                 #endif
 703                 if((pVideoCodecCtx->width == 0) || (pVideoCodecCtx->height == 0)) {
 704                         width = pVideoCodecCtx->coded_width;
 705                         height = pVideoCodecCtx->coded_height;
 706                 } else {
 707                         width = pVideoCodecCtx->width;
 708                         height = pVideoCodecCtx->height;
 709                 }
 710
 711                 numBytes = avpicture_get_size(PIX_FMT_RGB24, width, height);
 712                 if (numBytes < 0) {
 713                         debug_error ("error: avpicture_get_size. [%d x %d]\n", width, height);
 714                         ret = MMFILE_FORMAT_FAIL;
 715                         goto exception;
 716                 }
 717
 718                 frame->frameData = mmfile_malloc (numBytes);
 719                 if (NULL == frame->frameData) {
 720                         debug_error ("error: avpicture_get_size. [%d]\n", numBytes);
 721                         ret = MMFILE_FORMAT_FAIL;
 722                         goto exception;
 723                 }
 724
 725                 ret = avpicture_fill ((AVPicture *)pFrameRGB, frame->frameData, PIX_FMT_RGB24, width, height);
 726                 if (ret < 0) {
 727                         debug_error ("error: avpicture_fill fail. errcode = 0x%08X\n", ret);
 728                         ret = MMFILE_FORMAT_FAIL;
 729                         goto exception;
 730                 }
 731
 732 #ifdef __MMFILE_FFMPEG_V085__
 733                 struct SwsContext *img_convert_ctx = NULL;
 734
 735                 img_convert_ctx = sws_getContext (width, height, pVideoCodecCtx->pix_fmt,
 736                                           width, height, PIX_FMT_RGB24, SWS_BICUBIC, NULL, NULL, NULL);
 737
 738                 if (NULL == img_convert_ctx) {
 739                         debug_error ("failed to get img convet ctx\n");
 740                         ret = MMFILE_FORMAT_FAIL;
 741                         goto exception;
 742                 }
 743
 744                 ret = sws_scale (img_convert_ctx, (const uint8_t* const*)pFrame->data, pFrame->linesize,
 745                      0, height, pFrameRGB->data, pFrameRGB->linesize);
 746                 if ( ret < 0 ) {
 747                         debug_error ("failed to convet image\n");
 748                         ret = MMFILE_FORMAT_FAIL;
 749                         sws_freeContext(img_convert_ctx);
 750                         img_convert_ctx = NULL;
 751                         goto exception;
 752                 }
 753
 754                 sws_freeContext(img_convert_ctx);
 755                 img_convert_ctx = NULL;
 756 #else
 757                 ret = img_convert ((AVPicture *)pFrameRGB, PIX_FMT_RGB24, (AVPicture*)pFrame, pVideoCodecCtx->pix_fmt, width, height);
 758                 if ( ret < 0 ) {
 759                         debug_error ("failed to convet image\n");
 760                         ret = MMFILE_FORMAT_FAIL;
 761                         goto exception;
 762                 }
 763 #endif
 764                 frame->frameSize = numBytes;
 765                 frame->frameWidth = width;
 766                 frame->frameHeight = height;
 767                 frame->configLenth = 0;
 768                 frame->bCompressed = 0; /* false */
 769
 770                 if (pFrame)                     av_free (pFrame);
 771                 if (pFrameRGB)          av_free (pFrameRGB);
 772
 773                 avcodec_close(pVideoCodecCtx);
 774
 775                 return MMFILE_FORMAT_SUCCESS;
 776         }
 777
 778
 779 exception:
 780         if (pVideoCodecCtx)             avcodec_close (pVideoCodecCtx);
 781         if (frame->frameData)   { mmfile_free (frame->frameData); frame->frameData = NULL; }
 782         if (pFrame)                             av_free (pFrame);
 783         if (pFrameRGB)                  av_free (pFrameRGB);
 784         return ret;
 785 }
 786
 787
 788 EXPORT_API
 789 int mmfile_format_close_ffmpg(MMFileFormatContext *formatContext)
 790 {
 791         if (formatContext) {
 792                 AVFormatContext *pFormatCtx = formatContext->privateFormatData;
 793
 794                 if (pFormatCtx) {
 795 #ifdef __MMFILE_FFMPEG_V100__
 796                         avformat_close_input(&pFormatCtx);
 797 #else
 798                         av_close_input_file (pFormatCtx);
 799 #endif
 800                         formatContext->privateFormatData = NULL;
 801                 }
 802         }
 803
 804         return MMFILE_FORMAT_SUCCESS;
 805 }
 806
 807 /**
 808  * return average of difference
 809  */
 810 static unsigned int _diff_memory (const void *s1, const void *s2, unsigned int n)
 811 {
 812         char *s = (char *)s1;
 813         char *d = (char *)s2;
 814         int i;
 815         int ret;
 816         int tmp;
 817
 818         for (i = 0, ret = 0; i < n; i++) {
 819                 if (*s++ != *d++) {
 820                         tmp = (*s - *d);
 821                         ret += (tmp < 0 ? -tmp : tmp);
 822                 }
 823         }
 824         ret /= n;
 825         return ret;
 826 }
 827
 828 int64_t gettime(void)
 829 {
 830         struct timeval tv;
 831         gettimeofday(&tv,NULL);
 832         return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
 833 }
 834
 835
 836 #define IS_GOOD_OLD_METHOD
 837 #ifdef IS_GOOD_OLD_METHOD
 838 /**
 839  * compare with center line.
 840  */
 841 static int _is_good_pgm (unsigned char *buf, int wrap, int xsize, int ysize)
 842 {
 843 #define _MM_CHUNK_NUM                   8                                               /*FIXME*/
 844 #define _MM_CHUNK_LIMIT                 (_MM_CHUNK_NUM / 2)
 845 #define _MM_CHUNK_DIFF_LIMIT    (_MM_CHUNK_LIMIT * 2 + 1)       /*FIXME*/
 846
 847         int i;
 848         int step;
 849         int point;
 850         unsigned char *cnt;             /*center line of image*/
 851         int is_different;
 852         unsigned int sum_diff;
 853         int cnt_offset;
 854
 855         /*set center line*/
 856         step = ysize / _MM_CHUNK_NUM;
 857         cnt_offset = (ysize / 2);
 858         cnt = buf + cnt_offset * wrap;
 859
 860         #ifdef __MMFILE_TEST_MODE__
 861         debug_msg ("checking frame. %p, %d, %d, %d\n", buf, wrap, xsize, ysize);
 862         #endif
 863
 864         /*if too small, always ok return.*/
 865         if (ysize < _MM_CHUNK_NUM)
 866                 return 1;
 867
 868         for (point = 0, sum_diff = 0, i = step; i < ysize; i += step) {
 869                 if (i != cnt_offset) {
 870
 871                         /*binary compare*/
 872                         is_different = _diff_memory (cnt, buf + i * wrap, xsize);
 873                         point += (is_different == 0 ? 0 : 1);
 874                         sum_diff += is_different;
 875
 876                         #ifdef __MMFILE_TEST_MODE__
 877                         debug_msg ("check %04d line. %s [%d]\n", i, (is_different == 0 ? "same" : "different"), is_different);
 878                         #endif
 879
 880                         if (point >= _MM_CHUNK_LIMIT) {
 881                                 if (sum_diff > _MM_CHUNK_DIFF_LIMIT) {
 882                                         #ifdef __MMFILE_TEST_MODE__
 883                                         debug_msg ("Good :-)\n");
 884                                         #endif
 885                                         return 1;
 886                                 } else {
 887                                         #ifdef __MMFILE_TEST_MODE__
 888                                         debug_msg ("Bad :-(\n");
 889                                         #endif
 890                                         return 0;
 891                                 }
 892                         }
 893                 }
 894
 895         }
 896         return 0;
 897 }
 898 #else // IS_GOOD_OLD_METHOD
 899 /* ToDo : for enhancement */
 900 #endif // IS_GOOD_OLD_METHOD
 901
 902
 903
 904 static int
 905 _get_video_fps (int frame_cnt, int duration, AVRational r_frame_rate, int is_roundup)
 906 {
 907         double fps, round;
 908
 909         #ifdef __MMFILE_TEST_MODE__
 910         debug_msg ("frame count: %d, dur: %d, num: %d, den: %d\n", frame_cnt, duration, r_frame_rate.num, r_frame_rate.den)
 911         #endif
 912
 913         if (duration <= 0 || r_frame_rate.num <= 0 || r_frame_rate.den <= 0)
 914                 return 0;
 915
 916         round = (is_roundup != 0 ? 0.50f : 0.00f);
 917
 918         fps = (double)frame_cnt / ((double)(duration * r_frame_rate.num) / r_frame_rate.den) + round;
 919
 920         return (int)fps;
 921 }
 922
 923 #ifdef MMFILE_FORMAT_DEBUG_DUMP
 924 static void _save_pgm (unsigned char *buf,int wrap, int xsize,int ysize,char *filename)
 925 {
 926         FILE *f;
 927         int i;
 928
 929         f = fopen(filename,"w");
 930         if (f) {
 931                 fprintf (f,"P5\n%d %d\n%d\n",xsize,ysize,255);
 932                 for (i = 0; i < ysize; i++)
 933                         fwrite (buf + i * wrap, 1, xsize, f);
 934                 fclose (f);
 935         }
 936 }
 937 #endif
 938
 939 #ifdef __MMFILE_TEST_MODE__
 940 static void _dump_av_packet (AVPacket *pkt)
 941 {
 942         debug_msg ("--------- AV Packet -----------\n");
 943         debug_msg (" pts: %lld\n", pkt->pts);
 944         debug_msg (" dts: %lld\n", pkt->dts);
 945         debug_msg (" data: %p\n", pkt->data);
 946         debug_msg (" size: %d\n", pkt->size);
 947         debug_msg (" stream_index: %d\n", pkt->stream_index);
 948 #ifdef __MMFILE_FFMPEG_V085__
 949         debug_msg (" flags: 0x%08X, %s\n", pkt->flags, (pkt->flags & AV_PKT_FLAG_KEY) ? "Keyframe" : "_");
 950 #else
 951         debug_msg (" flags: 0x%08X, %s\n", pkt->flags, (pkt->flags & PKT_FLAG_KEY) ? "Keyframe" : "_");
 952 #endif
 953         debug_msg (" duration: %d\n", pkt->duration);
 954         debug_msg (" destruct: %p\n", pkt->destruct);
 955         debug_msg (" priv: %p\n", pkt->priv);
 956         debug_msg (" pos: %lld\n", pkt->pos);
 957         debug_msg (" convergence_duration: %lld\n", pkt->convergence_duration);
 958         debug_msg ("-------------------------------\n");
 959 }
 960 #endif
 961
 962 static int _get_first_good_video_frame (AVFormatContext *pFormatCtx, AVCodecContext *pCodecCtx, int videoStream, AVFrame **pFrame)
 963 {
 964         // AVStream *st = NULL;
 965         AVPacket pkt;
 966
 967         AVFrame *frame = NULL;
 968         AVFrame *tmp_frame = NULL;
 969         AVFrame *first_frame = NULL;
 970
 971         // long long timestamp;
 972         int stream_id = videoStream;
 973         int ret;
 974         int found = 0;
 975         int i,v, len, got_picture;
 976         int retry = 0;
 977         int key_detected;
 978 #ifdef MMFILE_FORMAT_DEBUG_DUMP
 979         char pgm_name[256] = {0,};
 980 #endif
 981
 982 #define _RETRY_SEARCH_LIMIT             150
 983 #define _KEY_SEARCH_LIMIT               (_RETRY_SEARCH_LIMIT*2)         /*2 = 1 read. some frame need to read one more*/
 984 #define _FRAME_SEARCH_LIMIT             1000
 985
 986         first_frame = avcodec_alloc_frame ();
 987         tmp_frame = avcodec_alloc_frame ();
 988
 989         if (!first_frame || !tmp_frame) {
 990                 debug_error ("failed to alloc frame.\n");
 991                 if (first_frame) av_free (first_frame);
 992                 if (tmp_frame) av_free (tmp_frame);
 993                 return MMFILE_FORMAT_FAIL;
 994         }
 995
 996         #ifdef __MMFILE_TEST_MODE__
 997         debug_msg ("frame: 1. %p, 2. %p\n", first_frame, tmp_frame);
 998         #endif
 999
1000 #ifdef __MMFILE_FFMPEG_V085__
1001         pCodecCtx->skip_frame = AVDISCARD_BIDIR;
1002 #else
1003         pCodecCtx->hurry_up = 1;
1004 #endif
1005
1006         for(i = 0, v = 0, key_detected = 0, frame = first_frame; i < _KEY_SEARCH_LIMIT && v < _FRAME_SEARCH_LIMIT;) {
1007                 av_init_packet (&pkt);
1008                 got_picture = 0;
1009
1010                 ret = av_read_frame (pFormatCtx, &pkt);
1011                 if (ret < 0) {
1012                         debug_error ("read failed. (maybe EOF or broken)\n");
1013                         break;
1014                 } else {
1015                         if (pkt.stream_index == stream_id) {
1016                                 v++;
1017 #ifdef __MMFILE_FFMPEG_V085__
1018                                 if ((pkt.flags & AV_PKT_FLAG_KEY ) || (key_detected == 1))
1019 #else
1020                                 if ((pkt.flags & PKT_FLAG_KEY ) || (key_detected == 1))
1021 #endif
1022                                 {
1023                                         #ifdef __MMFILE_TEST_MODE__
1024                                         debug_msg ("video frame: %d, %d, %d\n", retry, i, v);
1025                                         _dump_av_packet (&pkt);
1026                                         #endif
1027
1028                                         i++;
1029                                         key_detected = 0;
1030 #ifdef __MMFILE_FFMPEG_V085__
1031                                         len = avcodec_decode_video2 (pCodecCtx, frame, &got_picture, &pkt);
1032 #else
1033                                         len = avcodec_decode_video (pCodecCtx, frame, &got_picture, pkt.data, pkt.size);
1034 #endif
1035                                         if (len < 0) {
1036                                                 debug_warning ("Error while decoding frame %dth\n", i);
1037                                         } else if (got_picture) {
1038                                                 if (frame->key_frame) {
1039                                                         #ifdef __MMFILE_TEST_MODE__
1040                                                         debug_msg ("key frame!\n");
1041                                                         #endif
1042                                                         #ifdef MMFILE_FORMAT_DEBUG_DUMP
1043                                                         sprintf (pgm_name, "./key_%d_%d_%d.pgm", retry, i, v);
1044                                                         _save_pgm (frame->data[0], frame->linesize[0], pCodecCtx->width, pCodecCtx->height, pgm_name);
1045                                                         #endif
1046
1047                                                         found++;
1048
1049                                                         #ifdef __MMFILE_TEST_MODE__
1050                                                         int64_t ti;
1051                                                         ti = gettime();
1052                                                         #endif
1053                                                         ret = _is_good_pgm (frame->data[0], frame->linesize[0], pCodecCtx->width, pCodecCtx->height);
1054                                                         #ifdef __MMFILE_TEST_MODE__
1055                                                         ti = gettime() - ti;
1056                                                         debug_msg ("Elapsed time = %lld\n", ti);
1057                                                         #endif
1058                                                         if (ret != 0) {
1059                                                                 #ifdef __MMFILE_TEST_MODE__
1060                                                                 debug_msg ("is good frame.\n");
1061                                                                 #endif
1062                                                                 break;
1063                                                         } else {
1064                                                                 /*reset video frame count & retry searching*/
1065                                                                 debug_warning ("not good fame. retry scanning.\n");
1066                                                                 i = 0;
1067                                                                 v = 0;
1068                                                                 retry++;
1069                                                         }
1070
1071                                                         /*set buffer frame*/
1072                                                         frame = tmp_frame;
1073
1074                                                         /*limit of retry.*/
1075                                                         if (retry > _RETRY_SEARCH_LIMIT)        break;
1076
1077                                                 } else {
1078                                                         #ifdef __MMFILE_TEST_MODE__
1079                                                         debug_msg ("skip (not key frame).\n");
1080                                                         #endif
1081                                                         #ifdef MMFILE_FORMAT_DEBUG_DUMP
1082                                                         sprintf (pgm_name, "./not_key_%d_%d_%d.pgm", retry, i, v);
1083                                                         _save_pgm (frame->data[0], frame->linesize[0], pCodecCtx->width, pCodecCtx->height, pgm_name);
1084                                                         #endif
1085                                                 }
1086                                         } else {
1087                                                 #ifdef __MMFILE_TEST_MODE__
1088                                                 debug_msg ("decode not completed.\n");
1089                                                 #endif
1090                                                 key_detected = 1;
1091                                         }
1092                                 }
1093                         }
1094                 }
1095                 av_free_packet (&pkt);
1096         }
1097
1098         /*free pkt after loop breaking*/
1099         if (pkt.data) av_free_packet (&pkt);
1100
1101         #ifdef __MMFILE_TEST_MODE__
1102         debug_msg ("found: %d, retry: %d\n", found, retry);
1103         #endif
1104
1105         /*set decode frame to output*/
1106         if (found > 0) {
1107                 ret = MMFILE_FORMAT_SUCCESS;
1108                 if (retry == 0 || found == retry) {
1109                         *pFrame = first_frame;
1110                         if (tmp_frame) av_free (tmp_frame);
1111                 } else {
1112                         *pFrame = tmp_frame;
1113                         if (first_frame) av_free (first_frame);
1114                 }
1115         } else {
1116                 ret = MMFILE_FORMAT_FAIL;
1117                 if (first_frame) av_free (first_frame);
1118                 if (tmp_frame) av_free (tmp_frame);
1119         }
1120
1121         #ifdef __MMFILE_TEST_MODE__
1122         debug_msg ("out frame: %p\n", *pFrame);
1123         #endif
1124
1125 #ifdef __MMFILE_FFMPEG_V085__
1126         pCodecCtx->skip_frame = AVDISCARD_NONE;
1127 #else
1128         pCodecCtx->hurry_up = 0;
1129 #endif
1130
1131         return ret;
1132 }
1133
1134 static int ConvertVideoCodecEnum (int AVVideoCodecID)
1135 {
1136         int ret_codecid = 0;
1137
1138         switch (AVVideoCodecID)
1139         {
1140                 case AV_CODEC_ID_NONE:
1141                         ret_codecid = MM_VIDEO_CODEC_NONE;
1142                         break;
1143                 case AV_CODEC_ID_MPEG1VIDEO:
1144                         ret_codecid = MM_VIDEO_CODEC_MPEG1;
1145                         break;
1146                 case AV_CODEC_ID_MPEG2VIDEO:  ///< preferred ID for MPEG-1/2 video decoding
1147                         ret_codecid = MM_VIDEO_CODEC_MPEG2;
1148                         break;
1149                 case AV_CODEC_ID_MPEG2VIDEO_XVMC:
1150                         ret_codecid = MM_VIDEO_CODEC_MPEG2;
1151                         break;
1152                 case AV_CODEC_ID_H261:
1153                         ret_codecid = MM_VIDEO_CODEC_H261;
1154                         break;
1155                 case AV_CODEC_ID_H263:
1156                         ret_codecid = MM_VIDEO_CODEC_H263;
1157                         break;
1158                 case AV_CODEC_ID_MPEG4:
1159                         ret_codecid = MM_VIDEO_CODEC_MPEG4;
1160                         break;
1161                 case AV_CODEC_ID_MSMPEG4V1:
1162                         ret_codecid = MM_VIDEO_CODEC_MPEG4;
1163                         break;
1164                 case AV_CODEC_ID_MSMPEG4V2:
1165                         ret_codecid = MM_VIDEO_CODEC_MPEG4;
1166                         break;
1167                 case AV_CODEC_ID_MSMPEG4V3:
1168                         ret_codecid = MM_VIDEO_CODEC_MPEG4;
1169                         break;
1170                 case AV_CODEC_ID_WMV1:
1171                         ret_codecid = MM_VIDEO_CODEC_WMV;
1172                         break;
1173                 case AV_CODEC_ID_WMV2:
1174                         ret_codecid = MM_VIDEO_CODEC_WMV;
1175                         break;
1176                 case AV_CODEC_ID_H263P:
1177                         ret_codecid = MM_VIDEO_CODEC_H263;
1178                         break;
1179                 case AV_CODEC_ID_H263I:
1180                         ret_codecid = MM_VIDEO_CODEC_H263;
1181                         break;
1182                 case AV_CODEC_ID_FLV1:
1183                         ret_codecid = MM_VIDEO_CODEC_FLV;
1184                         break;
1185                 case AV_CODEC_ID_H264:
1186                         ret_codecid = MM_VIDEO_CODEC_H264;
1187                         break;
1188                 case AV_CODEC_ID_INDEO2:
1189                 case AV_CODEC_ID_INDEO3:
1190                 case AV_CODEC_ID_INDEO4:
1191                 case AV_CODEC_ID_INDEO5:
1192                         ret_codecid = MM_VIDEO_CODEC_INDEO;
1193                         break;
1194                 case AV_CODEC_ID_THEORA:
1195                         ret_codecid = MM_VIDEO_CODEC_THEORA;
1196                         break;
1197                 case AV_CODEC_ID_CINEPAK:
1198                         ret_codecid = MM_VIDEO_CODEC_CINEPAK;
1199                         break;
1200 #ifndef __MMFILE_FFMPEG_V085__
1201                 case CODEC_ID_XVID:
1202                         ret_codecid = MM_VIDEO_CODEC_XVID;
1203                         break;
1204 #endif
1205                 case AV_CODEC_ID_VC1:
1206                         ret_codecid = MM_VIDEO_CODEC_VC1;
1207                         break;
1208                 case AV_CODEC_ID_WMV3:
1209                         ret_codecid = MM_VIDEO_CODEC_WMV;
1210                         break;
1211                 case AV_CODEC_ID_AVS:
1212                         ret_codecid = MM_VIDEO_CODEC_AVS;
1213                         break;
1214                 case AV_CODEC_ID_RL2:
1215                         ret_codecid = MM_VIDEO_CODEC_REAL;
1216                         break;
1217                 default:
1218                         ret_codecid = MM_VIDEO_CODEC_NONE;
1219                         break;
1220         }
1221
1222         return ret_codecid;
1223 }
1224
1225
1226 static int ConvertAudioCodecEnum (int AVAudioCodecID)
1227 {
1228         int ret_codecid = 0;
1229
1230         switch (AVAudioCodecID)
1231         {
1232                 case AV_CODEC_ID_AMR_NB:
1233                 case AV_CODEC_ID_AMR_WB:
1234                         ret_codecid = MM_AUDIO_CODEC_AMR;
1235                         break;
1236                 /* RealAudio codecs*/
1237                 case AV_CODEC_ID_RA_144:
1238                 case AV_CODEC_ID_RA_288:
1239                         ret_codecid = MM_AUDIO_CODEC_REAL;
1240                         break;
1241                 case AV_CODEC_ID_MP2:
1242                         ret_codecid = MM_AUDIO_CODEC_MP2;
1243                         break;
1244                 case AV_CODEC_ID_MP3:
1245                 case AV_CODEC_ID_MP3ADU:
1246                 case AV_CODEC_ID_MP3ON4:
1247                         ret_codecid = MM_AUDIO_CODEC_MP3;
1248                         break;
1249                 case AV_CODEC_ID_AAC:
1250                         ret_codecid = MM_AUDIO_CODEC_AAC;
1251                         break;
1252                 case AV_CODEC_ID_AC3:
1253                         ret_codecid = MM_AUDIO_CODEC_AC3;
1254                         break;
1255                 case AV_CODEC_ID_VORBIS:
1256                         ret_codecid = MM_AUDIO_CODEC_VORBIS;
1257                         break;
1258                 case AV_CODEC_ID_WMAV1:
1259                 case AV_CODEC_ID_WMAV2:
1260                 case AV_CODEC_ID_WMAVOICE:
1261                 case AV_CODEC_ID_WMAPRO:
1262                 case AV_CODEC_ID_WMALOSSLESS:
1263                         ret_codecid = MM_AUDIO_CODEC_WMA;
1264                         break;
1265                 case AV_CODEC_ID_FLAC:
1266                         ret_codecid = MM_AUDIO_CODEC_FLAC;
1267                         break;
1268                 case AV_CODEC_ID_ALAC:
1269                         ret_codecid = MM_AUDIO_CODEC_ALAC;
1270                         break;
1271                 case AV_CODEC_ID_WAVPACK:
1272                         ret_codecid = MM_AUDIO_CODEC_WAVE;
1273                         break;
1274                 case AV_CODEC_ID_ATRAC3:
1275                 case AV_CODEC_ID_ATRAC3P:
1276                 case AV_CODEC_ID_EAC3:
1277                         ret_codecid = MM_AUDIO_CODEC_AC3;
1278                         break;
1279                 default:
1280                         ret_codecid = MM_AUDIO_CODEC_NONE;
1281                         break;
1282         }
1283
1284         return ret_codecid;
1285 }
1286
1287
1288
1289 static int getMimeType(int formatId, char *mimeType)
1290 {
1291         int ret = 0;    /*default: success*/
1292
1293         switch(formatId) {
1294                 case MM_FILE_FORMAT_3GP:
1295                 case MM_FILE_FORMAT_MP4:
1296                         sprintf(mimeType,"video/3gpp");
1297                         break;
1298                 case MM_FILE_FORMAT_ASF:
1299                 case MM_FILE_FORMAT_WMA:
1300                 case MM_FILE_FORMAT_WMV:
1301                         sprintf(mimeType,"video/x-ms-asf");
1302                         break;
1303                 case  MM_FILE_FORMAT_AVI:
1304                         sprintf(mimeType,"video/avi");
1305                         break;
1306                 case MM_FILE_FORMAT_OGG:
1307                         sprintf(mimeType,"video/ogg");
1308                         break;
1309                 case MM_FILE_FORMAT_REAL:
1310                         sprintf(mimeType,"video/vnd.rn-realvideo");
1311                         break;
1312                 case MM_FILE_FORMAT_AMR:
1313                         sprintf(mimeType,"audio/AMR");
1314                         break;
1315                 case MM_FILE_FORMAT_AAC:
1316                         sprintf(mimeType,"audio/aac");
1317                         break;
1318                 case MM_FILE_FORMAT_MP3:
1319                         sprintf(mimeType,"audio/mp3");
1320                         break;
1321                 case MM_FILE_FORMAT_AIFF:
1322                 case MM_FILE_FORMAT_WAV:
1323                         sprintf(mimeType,"audio/wave");
1324                         break;
1325                 case MM_FILE_FORMAT_MID:
1326                         sprintf(mimeType,"audio/midi");
1327                         break;
1328                 case MM_FILE_FORMAT_MMF:
1329                         sprintf(mimeType,"audio/mmf");
1330                         break;
1331                 case MM_FILE_FORMAT_DIVX:
1332                         sprintf(mimeType,"video/divx");
1333                         break;
1334                 case MM_FILE_FORMAT_IMELODY:
1335                         sprintf(mimeType,"audio/iMelody");
1336                         break;
1337                 case MM_FILE_FORMAT_JPG:
1338                         sprintf(mimeType,"image/jpeg");
1339                         break;
1340                 case MM_FILE_FORMAT_AU:
1341                         sprintf(mimeType,"audio/basic");
1342                         break;
1343                 case MM_FILE_FORMAT_VOB:
1344                         sprintf(mimeType,"video/mpeg");
1345                         break;
1346                 case MM_FILE_FORMAT_FLV:
1347                         sprintf(mimeType,"video/x-flv");
1348                         break;
1349                 case MM_FILE_FORMAT_QT:
1350                         sprintf(mimeType,"video/quicktime");
1351                         break;
1352                 case MM_FILE_FORMAT_MATROSKA:
1353                         sprintf(mimeType,"video/x-matroska");
1354                         break;
1355                 case MM_FILE_FORMAT_FLAC:
1356                         sprintf(mimeType,"audio/x-flac");
1357                         break;
1358                 default:
1359                         ret = -1;
1360         }
1361
1362         debug_msg ("id: %d, mimetype: %s\n", formatId, mimeType);
1363
1364         return ret;
1365 }
1366
1367