- return 0;
- failed:
- av_free(pkt_data);
- return -1;
-}
-
-static int
-matroska_add_stream (MatroskaDemuxContext *matroska)
-{
- int res = 0;
- uint32_t id;
- MatroskaTrack *track;
-
- /* start with the master */
- if ((res = ebml_read_master(matroska, &id)) < 0)
- return res;
-
- av_log(matroska->ctx, AV_LOG_DEBUG, "parsing track, adding stream..,\n");
-
- /* Allocate a generic track. */
- track = av_mallocz(MAX_TRACK_SIZE);
- track->time_scale = 1.0;
- strcpy(track->language, "eng");
-
- /* try reading the trackentry headers */
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- /* track number (unique stream ID) */
- case MATROSKA_ID_TRACKNUMBER: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- track->num = num;
- break;
- }
-
- /* track UID (unique identifier) */
- case MATROSKA_ID_TRACKUID: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- track->uid = num;
- break;
- }
-
- /* track type (video, audio, combined, subtitle, etc.) */
- case MATROSKA_ID_TRACKTYPE: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- if (track->type && track->type != num) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "More than one tracktype in an entry - skip\n");
- break;
- }
- track->type = num;
-
- switch (track->type) {
- case MATROSKA_TRACK_TYPE_VIDEO:
- case MATROSKA_TRACK_TYPE_AUDIO:
- case MATROSKA_TRACK_TYPE_SUBTITLE:
- break;
- case MATROSKA_TRACK_TYPE_COMPLEX:
- case MATROSKA_TRACK_TYPE_LOGO:
- case MATROSKA_TRACK_TYPE_CONTROL:
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown or unsupported track type 0x%x\n",
- track->type);
- track->type = MATROSKA_TRACK_TYPE_NONE;
- break;
- }
- break;
- }
-
- /* tracktype specific stuff for video */
- case MATROSKA_ID_TRACKVIDEO: {
- MatroskaVideoTrack *videotrack;
- if (!track->type)
- track->type = MATROSKA_TRACK_TYPE_VIDEO;
- if (track->type != MATROSKA_TRACK_TYPE_VIDEO) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "video data in non-video track - ignoring\n");
- res = AVERROR_INVALIDDATA;
- break;
- } else if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
- videotrack = (MatroskaVideoTrack *)track;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- /* fixme, this should be one-up, but I get it here */
- case MATROSKA_ID_TRACKDEFAULTDURATION: {
- uint64_t num;
- if ((res = ebml_read_uint (matroska, &id,
- &num)) < 0)
- break;
- track->default_duration = num;
- break;
- }
-
- /* video framerate */
- case MATROSKA_ID_VIDEOFRAMERATE: {
- double num;
- if ((res = ebml_read_float(matroska, &id,
- &num)) < 0)
- break;
- if (!track->default_duration)
- track->default_duration = 1000000000/num;
- break;
- }
-
- /* width of the size to display the video at */
- case MATROSKA_ID_VIDEODISPLAYWIDTH: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- videotrack->display_width = num;
- break;
- }
-
- /* height of the size to display the video at */
- case MATROSKA_ID_VIDEODISPLAYHEIGHT: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- videotrack->display_height = num;
- break;
- }
-
- /* width of the video in the file */
- case MATROSKA_ID_VIDEOPIXELWIDTH: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- videotrack->pixel_width = num;
- break;
- }
-
- /* height of the video in the file */
- case MATROSKA_ID_VIDEOPIXELHEIGHT: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- videotrack->pixel_height = num;
- break;
- }
-
- /* whether the video is interlaced */
- case MATROSKA_ID_VIDEOFLAGINTERLACED: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- break;
- }
-
- /* colorspace (only matters for raw video)
- * fourcc */
- case MATROSKA_ID_VIDEOCOLORSPACE: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- videotrack->fourcc = num;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown video track header entry "
- "0x%x - ignoring\n", id);
- /* pass-through */
-
- case MATROSKA_ID_VIDEOSTEREOMODE:
- case MATROSKA_ID_VIDEOASPECTRATIO:
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
- break;
- }
-
- /* tracktype specific stuff for audio */
- case MATROSKA_ID_TRACKAUDIO: {
- MatroskaAudioTrack *audiotrack;
- if (!track->type)
- track->type = MATROSKA_TRACK_TYPE_AUDIO;
- if (track->type != MATROSKA_TRACK_TYPE_AUDIO) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "audio data in non-audio track - ignoring\n");
- res = AVERROR_INVALIDDATA;
- break;
- } else if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
- audiotrack = (MatroskaAudioTrack *)track;
- audiotrack->channels = 1;
- audiotrack->samplerate = 8000;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- /* samplerate */
- case MATROSKA_ID_AUDIOSAMPLINGFREQ: {
- double num;
- if ((res = ebml_read_float(matroska, &id,
- &num)) < 0)
- break;
- audiotrack->internal_samplerate =
- audiotrack->samplerate = num;
- break;
- }
-
- case MATROSKA_ID_AUDIOOUTSAMPLINGFREQ: {
- double num;
- if ((res = ebml_read_float(matroska, &id,
- &num)) < 0)
- break;
- audiotrack->samplerate = num;
- break;
- }
-
- /* bitdepth */
- case MATROSKA_ID_AUDIOBITDEPTH: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- audiotrack->bitdepth = num;
- break;
- }
-
- /* channels */
- case MATROSKA_ID_AUDIOCHANNELS: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id,
- &num)) < 0)
- break;
- audiotrack->channels = num;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown audio track header entry "
- "0x%x - ignoring\n", id);
- /* pass-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
- break;
- }
-
- /* codec identifier */
- case MATROSKA_ID_CODECID: {
- char *text;
- if ((res = ebml_read_ascii(matroska, &id, &text)) < 0)
- break;
- track->codec_id = text;
- break;
- }
-
- /* codec private data */
- case MATROSKA_ID_CODECPRIVATE: {
- uint8_t *data;
- int size;
- if ((res = ebml_read_binary(matroska, &id, &data, &size) < 0))
- break;
- track->codec_priv = data;
- track->codec_priv_size = size;
- break;
- }
-
- /* name of this track */
- case MATROSKA_ID_TRACKNAME: {
- char *text;
- if ((res = ebml_read_utf8(matroska, &id, &text)) < 0)
- break;
- track->name = text;
- break;
- }
-
- /* language (matters for audio/subtitles, mostly) */
- case MATROSKA_ID_TRACKLANGUAGE: {
- char *text, *end;
- if ((res = ebml_read_utf8(matroska, &id, &text)) < 0)
- break;
- if ((end = strchr(text, '-')))
- *end = '\0';
- if (strlen(text) == 3)
- strcpy(track->language, text);
- av_free(text);
- break;
- }
-
- /* whether this is actually used */
- case MATROSKA_ID_TRACKFLAGENABLED: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- break;
- }
-
- /* whether it's the default for this track type */
- case MATROSKA_ID_TRACKFLAGDEFAULT: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- track->flag_default = num;
- break;
- }
-
- /* lacing (like MPEG, where blocks don't end/start on frame
- * boundaries) */
- case MATROSKA_ID_TRACKFLAGLACING: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- break;
- }
-
- /* default length (in time) of one data block in this track */
- case MATROSKA_ID_TRACKDEFAULTDURATION: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- track->default_duration = num;
- break;
- }
-
- case MATROSKA_ID_TRACKCONTENTENCODINGS: {
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_TRACKCONTENTENCODING: {
- int encoding_scope = 1;
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_ENCODINGSCOPE: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- encoding_scope = num;
- break;
- }
-
- case MATROSKA_ID_ENCODINGTYPE: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- if (num)
- av_log(matroska->ctx, AV_LOG_ERROR,
- "Unsupported encoding type");
- break;
- }
-
- case MATROSKA_ID_ENCODINGCOMPRESSION: {
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up > 0) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_ENCODINGCOMPALGO: {
- uint64_t num;
- if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
- break;
- if (num != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
-#ifdef CONFIG_ZLIB
- num != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
-#endif
-#ifdef CONFIG_BZLIB
- num != MATROSKA_TRACK_ENCODING_COMP_BZLIB &&
-#endif
- num != MATROSKA_TRACK_ENCODING_COMP_LZO)
- av_log(matroska->ctx, AV_LOG_ERROR,
- "Unsupported compression algo\n");
- track->encoding_algo = num;
- break;
- }
-
- case MATROSKA_ID_ENCODINGCOMPSETTINGS: {
- uint8_t *data;
- int size;
- if ((res = ebml_read_binary(matroska, &id, &data, &size) < 0))
- break;
- track->encoding_settings = data;
- track->encoding_settings_len = size;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown compression header entry "
- "0x%x - ignoring\n", id);
- /* pass-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown content encoding header entry "
- "0x%x - ignoring\n", id);
- /* pass-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- track->encoding_scope = encoding_scope;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown content encodings header entry "
- "0x%x - ignoring\n", id);
- /* pass-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
- break;
- }
-
- case MATROSKA_ID_TRACKTIMECODESCALE: {
- double num;
- if ((res = ebml_read_float(matroska, &id, &num)) < 0)
- break;
- track->time_scale = num;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown track header entry 0x%x - ignoring\n", id);
- /* pass-through */
-
- case EBML_ID_VOID:
- /* we ignore these because they're nothing useful. */
- case MATROSKA_ID_TRACKFLAGFORCED:
- case MATROSKA_ID_CODECNAME:
- case MATROSKA_ID_CODECDECODEALL:
- case MATROSKA_ID_CODECINFOURL:
- case MATROSKA_ID_CODECDOWNLOADURL:
- case MATROSKA_ID_TRACKMINCACHE:
- case MATROSKA_ID_TRACKMAXCACHE:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- if (track->codec_priv_size && track->encoding_scope & 2) {
- uint8_t *orig_priv = track->codec_priv;
- int offset = matroska_decode_buffer(&track->codec_priv,
- &track->codec_priv_size, track);
- if (offset > 0) {
- track->codec_priv = av_malloc(track->codec_priv_size + offset);
- memcpy(track->codec_priv, track->encoding_settings, offset);
- memcpy(track->codec_priv+offset, orig_priv, track->codec_priv_size);
- track->codec_priv_size += offset;
- av_free(orig_priv);
- } else if (!offset) {
- av_free(orig_priv);
- } else
- av_log(matroska->ctx, AV_LOG_ERROR,
- "Failed to decode codec private data\n");
- }
-
- if (track->type && matroska->num_tracks < ARRAY_SIZE(matroska->tracks)) {
- matroska->tracks[matroska->num_tracks++] = track;
- } else {
- av_free(track);
- }
- return res;
-}
-
-static int
-matroska_parse_tracks (MatroskaDemuxContext *matroska)
-{
- int res = 0;
- uint32_t id;
-
- av_log(matroska->ctx, AV_LOG_DEBUG, "parsing tracks...\n");
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- /* one track within the "all-tracks" header */
- case MATROSKA_ID_TRACKENTRY:
- res = matroska_add_stream(matroska);
- break;
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown entry 0x%x in track header\n", id);
- /* fall-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- return res;
-}
-
-static int
-matroska_parse_index (MatroskaDemuxContext *matroska)
-{
- return ebml_parse(matroska, matroska_index, matroska, MATROSKA_ID_CUES, 0);
-}
-
-static int
-matroska_parse_metadata (MatroskaDemuxContext *matroska)
-{
- return ebml_parse(matroska, matroska_tags, matroska, MATROSKA_ID_TAGS, 0);
-}
-
-static int
-matroska_parse_seekhead (MatroskaDemuxContext *matroska)
-{
- int res = 0;
- uint32_t id;
-
- av_log(matroska->ctx, AV_LOG_DEBUG, "parsing seekhead...\n");
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_SEEKENTRY: {
- uint32_t seek_id = 0, peek_id_cache = 0;
- uint64_t seek_pos = (uint64_t) -1, t;
- int dummy_level = 0;
-
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_SEEKID:
- res = ebml_read_uint(matroska, &id, &t);
- seek_id = t;
- break;
-
- case MATROSKA_ID_SEEKPOSITION:
- res = ebml_read_uint(matroska, &id, &seek_pos);
- break;
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown seekhead ID 0x%x\n", id);
- /* fall-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- if (!seek_id || seek_pos == (uint64_t) -1) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "Incomplete seekhead entry (0x%x/%"PRIu64")\n",
- seek_id, seek_pos);
- break;
- }
-
- switch (seek_id) {
- case MATROSKA_ID_CUES:
- case MATROSKA_ID_TAGS: {
- uint32_t level_up = matroska->level_up;
- offset_t before_pos;
- uint64_t length;
- MatroskaLevel level;
-
- /* remember the peeked ID and the current position */
- peek_id_cache = matroska->peek_id;
- before_pos = url_ftell(matroska->ctx->pb);
-
- /* seek */
- if ((res = ebml_read_seek(matroska, seek_pos +
- matroska->segment_start)) < 0)
- goto finish;
-
- /* we don't want to lose our seekhead level, so we add
- * a dummy. This is a crude hack. */
- if (matroska->num_levels == EBML_MAX_DEPTH) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "Max EBML element depth (%d) reached, "
- "cannot parse further.\n", EBML_MAX_DEPTH);
- return AVERROR_UNKNOWN;
- }
-
- level.start = 0;
- level.length = (uint64_t)-1;
- matroska->levels[matroska->num_levels] = level;
- matroska->num_levels++;
- dummy_level = 1;
-
- /* check ID */
- if (!(id = ebml_peek_id (matroska,
- &matroska->level_up)))
- goto finish;
- if (id != seek_id) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "We looked for ID=0x%x but got "
- "ID=0x%x (pos=%"PRIu64")",
- seek_id, id, seek_pos +
- matroska->segment_start);
- goto finish;
- }
-
- /* read master + parse */
- switch (id) {
- case MATROSKA_ID_CUES:
- if (!(res = matroska_parse_index(matroska)) ||
- url_feof(matroska->ctx->pb)) {
- matroska->index_parsed = 1;
- res = 0;
- }
- break;
- case MATROSKA_ID_TAGS:
- if (!(res = matroska_parse_metadata(matroska)) ||
- url_feof(matroska->ctx->pb)) {
- matroska->metadata_parsed = 1;
- res = 0;
- }
- break;
- }
-
- finish:
- /* remove dummy level */
- if (dummy_level)
- while (matroska->num_levels) {
- matroska->num_levels--;
- length =
- matroska->levels[matroska->num_levels].length;
- if (length == (uint64_t)-1)
- break;
- }
-
- /* seek back */
- if ((res = ebml_read_seek(matroska, before_pos)) < 0)
- return res;
- matroska->peek_id = peek_id_cache;
- matroska->level_up = level_up;
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Ignoring seekhead entry for ID=0x%x\n",
- seek_id);
- break;
- }
-
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown seekhead ID 0x%x\n", id);
- /* fall-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- return res;
-}
-
-static int
-matroska_parse_attachments(AVFormatContext *s)
-{
- MatroskaDemuxContext *matroska = s->priv_data;
- int res = 0;
- uint32_t id;
-
- av_log(matroska->ctx, AV_LOG_DEBUG, "parsing attachments...\n");
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_ATTACHEDFILE: {
- char* name = NULL;
- char* mime = NULL;
- uint8_t* data = NULL;
- int i, data_size = 0;
- AVStream *st;
-
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_FILENAME:
- res = ebml_read_utf8 (matroska, &id, &name);
- break;
-
- case MATROSKA_ID_FILEMIMETYPE:
- res = ebml_read_ascii (matroska, &id, &mime);
- break;
-
- case MATROSKA_ID_FILEDATA:
- res = ebml_read_binary(matroska, &id, &data, &data_size);
- break;
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown attachedfile ID 0x%x\n", id);
- case MATROSKA_ID_FILEUID:
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- if (!(name && mime && data && data_size > 0)) {
- av_log(matroska->ctx, AV_LOG_ERROR, "incomplete attachment\n");
- break;
- }
-
- st = av_new_stream(s, matroska->num_streams++);
- if (st == NULL)
- return AVERROR(ENOMEM);
- st->filename = av_strdup(name);
- st->codec->codec_id = CODEC_ID_NONE;
- st->codec->codec_type = CODEC_TYPE_ATTACHMENT;
- st->codec->extradata = av_malloc(data_size);
- if(st->codec->extradata == NULL)
- return AVERROR(ENOMEM);
- st->codec->extradata_size = data_size;
- memcpy(st->codec->extradata, data, data_size);
-
- for (i=0; ff_mkv_mime_tags[i].id != CODEC_ID_NONE; i++) {
- if (!strncmp(ff_mkv_mime_tags[i].str, mime,
- strlen(ff_mkv_mime_tags[i].str))) {
- st->codec->codec_id = ff_mkv_mime_tags[i].id;
- break;
- }
- }
-
- av_log(matroska->ctx, AV_LOG_DEBUG, "new attachment: %s, %s, size %d \n", name, mime, data_size);
- break;
- }
-
- default:
- av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown attachments ID 0x%x\n", id);
- /* fall-through */
-
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
-
- return res;
-}
-
-static int
-matroska_parse_chapters(AVFormatContext *s)
-{
- MatroskaDemuxContext *matroska = s->priv_data;
- int res = 0;
- uint32_t id;
-
- av_log(s, AV_LOG_DEBUG, "parsing chapters...\n");
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_EDITIONENTRY: {
- uint64_t end = AV_NOPTS_VALUE, start = AV_NOPTS_VALUE;
- int64_t uid= -1;
- char* title = NULL;
- /* if there is more than one chapter edition
- we take only the first one */
- if(s->chapters) {
- ebml_read_skip(matroska);
- break;
- }
-
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_CHAPTERATOM:
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_CHAPTERTIMEEND:
- res = ebml_read_uint(matroska, &id, &end);
- break;
-
- case MATROSKA_ID_CHAPTERTIMESTART:
- res = ebml_read_uint(matroska, &id, &start);
- break;
-
- case MATROSKA_ID_CHAPTERDISPLAY:
- if ((res = ebml_read_master(matroska, &id)) < 0)
- break;
-
- while (res == 0) {
- if (!(id = ebml_peek_id(matroska, &matroska->level_up))) {
- res = AVERROR(EIO);
- break;
- } else if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
-
- switch (id) {
- case MATROSKA_ID_CHAPSTRING:
- res = ebml_read_utf8(matroska, &id, &title);
- break;
-
- default:
- av_log(s, AV_LOG_INFO, "Ignoring unknown Chapter display ID 0x%x\n", id);
- case EBML_ID_VOID:
- res = ebml_read_skip(matroska);
- break;
- }
-
- if (matroska->level_up) {
- matroska->level_up--;
- break;
- }
- }
- break;