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https://gitee.com/openharmony/third_party_ffmpeg
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matroskadec: move context settings to matroska_read_header()
Originally committed as revision 14570 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs
parent
d88d806bd1
commit
9c25bafacb
@ -1156,13 +1156,6 @@ matroska_parse_info (MatroskaDemuxContext *matroska)
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{
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int res = ebml_parse(matroska, matroska_info, matroska, MATROSKA_ID_INFO, 0);
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if (matroska->duration)
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matroska->ctx->duration = matroska->duration * matroska->time_scale
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* 1000 / AV_TIME_BASE;
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if (matroska->title)
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strncpy(matroska->ctx->title, matroska->title,
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sizeof(matroska->ctx->title)-1);
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return res;
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}
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@ -1246,77 +1239,10 @@ matroska_decode_buffer(uint8_t** buf, int* buf_size, MatroskaTrack *track)
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static int
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matroska_parse_tracks (MatroskaDemuxContext *matroska)
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{
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MatroskaTrack *tracks;
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int i, res;
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res = ebml_parse(matroska, matroska_tracks, matroska, MATROSKA_ID_TRACKS, 0);
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tracks = matroska->tracks.elem;
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for (i=0; i<matroska->tracks.nb_elem; i++) {
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MatroskaTrack *track = &tracks[i];
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EbmlList *encodings_list = &tracks->encodings;
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MatroskaTrackEncoding *encodings = encodings_list->elem;
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if (track->type != MATROSKA_TRACK_TYPE_VIDEO &&
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track->type != MATROSKA_TRACK_TYPE_AUDIO &&
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track->type != MATROSKA_TRACK_TYPE_SUBTITLE) {
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av_log(matroska->ctx, AV_LOG_INFO,
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"Unknown or unsupported track type %"PRIu64"\n",
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track->type);
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continue;
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}
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if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
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if (!track->default_duration)
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track->default_duration = 1000000000/track->video.frame_rate;
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if (!track->video.display_width)
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track->video.display_width = track->video.pixel_width;
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if (!track->video.display_height)
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track->video.display_height = track->video.pixel_height;
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} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
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if (!track->audio.out_samplerate)
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track->audio.out_samplerate = track->audio.samplerate;
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}
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if (encodings_list->nb_elem > 1) {
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Multiple combined encodings no supported");
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} else if (encodings_list->nb_elem == 1) {
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if (encodings[0].type ||
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(encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
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#ifdef CONFIG_ZLIB
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
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#endif
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#ifdef CONFIG_BZLIB
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_BZLIB &&
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#endif
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO)) {
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encodings[0].scope = 0;
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Unsupported encoding type");
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} else if (track->codec_priv.size && encodings[0].scope&2) {
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uint8_t *codec_priv = track->codec_priv.data;
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int offset = matroska_decode_buffer(&track->codec_priv.data,
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&track->codec_priv.size,
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track);
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if (offset < 0) {
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track->codec_priv.data = NULL;
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track->codec_priv.size = 0;
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Failed to decode codec private data\n");
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} else if (offset > 0) {
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track->codec_priv.data = av_malloc(track->codec_priv.size + offset);
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memcpy(track->codec_priv.data,
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encodings[0].compression.settings.data, offset);
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memcpy(track->codec_priv.data+offset, codec_priv,
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track->codec_priv.size);
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track->codec_priv.size += offset;
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}
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if (codec_priv != track->codec_priv.data)
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av_free(codec_priv);
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}
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}
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}
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return res;
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}
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@ -1425,40 +1351,10 @@ static int
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matroska_parse_attachments(AVFormatContext *s)
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{
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MatroskaDemuxContext *matroska = s->priv_data;
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EbmlList *attachements_list = &matroska->attachments;
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MatroskaAttachement *attachements;
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int i, j, res;
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res = ebml_parse(matroska, matroska_attachments, matroska, MATROSKA_ID_ATTACHMENTS, 0);
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attachements = attachements_list->elem;
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for (j=0; j<attachements_list->nb_elem; j++) {
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if (!(attachements[j].filename && attachements[j].mime &&
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attachements[j].bin.data && attachements[j].bin.size > 0)) {
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av_log(matroska->ctx, AV_LOG_ERROR, "incomplete attachment\n");
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} else {
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AVStream *st = av_new_stream(s, matroska->num_streams++);
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if (st == NULL)
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break;
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st->filename = av_strdup(attachements[j].filename);
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st->codec->codec_id = CODEC_ID_NONE;
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st->codec->codec_type = CODEC_TYPE_ATTACHMENT;
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st->codec->extradata = av_malloc(attachements[j].bin.size);
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if(st->codec->extradata == NULL)
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break;
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st->codec->extradata_size = attachements[j].bin.size;
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memcpy(st->codec->extradata, attachements[j].bin.data, attachements[j].bin.size);
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for (i=0; ff_mkv_mime_tags[i].id != CODEC_ID_NONE; i++) {
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if (!strncmp(ff_mkv_mime_tags[i].str, attachements[j].mime,
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strlen(ff_mkv_mime_tags[i].str))) {
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st->codec->codec_id = ff_mkv_mime_tags[i].id;
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break;
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}
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}
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}
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}
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return res;
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}
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@ -1466,19 +1362,10 @@ static int
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matroska_parse_chapters(AVFormatContext *s)
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{
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MatroskaDemuxContext *matroska = s->priv_data;
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EbmlList *chapters_list = &matroska->chapters;
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MatroskaChapter *chapters;
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int i, res;
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res = ebml_parse(matroska, matroska_chapters, matroska, MATROSKA_ID_CHAPTERS, 0);
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chapters = chapters_list->elem;
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for (i=0; i<chapters_list->nb_elem; i++)
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if (chapters[i].start != AV_NOPTS_VALUE && chapters[i].uid)
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ff_new_chapter(s, chapters[i].uid, (AVRational){1, 1000000000},
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chapters[i].start, chapters[i].end,
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chapters[i].title);
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return res;
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}
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@ -1512,6 +1399,10 @@ matroska_read_header (AVFormatContext *s,
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AVFormatParameters *ap)
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{
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MatroskaDemuxContext *matroska = s->priv_data;
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EbmlList *attachements_list = &matroska->attachments;
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MatroskaAttachement *attachements;
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EbmlList *chapters_list = &matroska->chapters;
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MatroskaChapter *chapters;
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MatroskaTrack *tracks;
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EbmlList *index_list;
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MatroskaIndex *index;
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@ -1643,18 +1534,85 @@ matroska_read_header (AVFormatContext *s,
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if (ebml_peek_id(matroska, NULL) != MATROSKA_ID_CLUSTER)
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return -1;
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if (matroska->duration)
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matroska->ctx->duration = matroska->duration * matroska->time_scale
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* 1000 / AV_TIME_BASE;
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if (matroska->title)
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strncpy(matroska->ctx->title, matroska->title,
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sizeof(matroska->ctx->title)-1);
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tracks = matroska->tracks.elem;
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for (i=0; i < matroska->tracks.nb_elem; i++) {
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MatroskaTrack *track = &tracks[i];
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enum CodecID codec_id = CODEC_ID_NONE;
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EbmlList *encodings_list = &tracks->encodings;
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MatroskaTrackEncoding *encodings = encodings_list->elem;
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uint8_t *extradata = NULL;
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int extradata_size = 0;
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int extradata_offset = 0;
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/* Apply some sanity checks. */
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if (track->type != MATROSKA_TRACK_TYPE_VIDEO &&
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track->type != MATROSKA_TRACK_TYPE_AUDIO &&
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track->type != MATROSKA_TRACK_TYPE_SUBTITLE) {
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av_log(matroska->ctx, AV_LOG_INFO,
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"Unknown or unsupported track type %"PRIu64"\n",
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track->type);
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continue;
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}
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if (track->codec_id == NULL)
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continue;
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if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
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if (!track->default_duration)
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track->default_duration = 1000000000/track->video.frame_rate;
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if (!track->video.display_width)
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track->video.display_width = track->video.pixel_width;
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if (!track->video.display_height)
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track->video.display_height = track->video.pixel_height;
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} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
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if (!track->audio.out_samplerate)
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track->audio.out_samplerate = track->audio.samplerate;
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}
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if (encodings_list->nb_elem > 1) {
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Multiple combined encodings no supported");
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} else if (encodings_list->nb_elem == 1) {
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if (encodings[0].type ||
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(encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
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#ifdef CONFIG_ZLIB
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
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#endif
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#ifdef CONFIG_BZLIB
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_BZLIB &&
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#endif
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encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO)) {
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encodings[0].scope = 0;
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Unsupported encoding type");
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} else if (track->codec_priv.size && encodings[0].scope&2) {
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uint8_t *codec_priv = track->codec_priv.data;
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int offset = matroska_decode_buffer(&track->codec_priv.data,
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&track->codec_priv.size,
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track);
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if (offset < 0) {
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track->codec_priv.data = NULL;
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track->codec_priv.size = 0;
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av_log(matroska->ctx, AV_LOG_ERROR,
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"Failed to decode codec private data\n");
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} else if (offset > 0) {
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track->codec_priv.data = av_malloc(track->codec_priv.size + offset);
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memcpy(track->codec_priv.data,
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encodings[0].compression.settings.data, offset);
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memcpy(track->codec_priv.data+offset, codec_priv,
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track->codec_priv.size);
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track->codec_priv.size += offset;
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}
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if (codec_priv != track->codec_priv.data)
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av_free(codec_priv);
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}
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}
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for(j=0; ff_mkv_codec_tags[j].id != CODEC_ID_NONE; j++){
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if(!strncmp(ff_mkv_codec_tags[j].str, track->codec_id,
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strlen(ff_mkv_codec_tags[j].str))){
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@ -1825,6 +1783,41 @@ matroska_read_header (AVFormatContext *s,
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}
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res = 0;
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attachements = attachements_list->elem;
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for (j=0; j<attachements_list->nb_elem; j++) {
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if (!(attachements[j].filename && attachements[j].mime &&
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attachements[j].bin.data && attachements[j].bin.size > 0)) {
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av_log(matroska->ctx, AV_LOG_ERROR, "incomplete attachment\n");
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} else {
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AVStream *st = av_new_stream(s, matroska->num_streams++);
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if (st == NULL)
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break;
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st->filename = av_strdup(attachements[j].filename);
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st->codec->codec_id = CODEC_ID_NONE;
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st->codec->codec_type = CODEC_TYPE_ATTACHMENT;
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st->codec->extradata = av_malloc(attachements[j].bin.size);
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if(st->codec->extradata == NULL)
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break;
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st->codec->extradata_size = attachements[j].bin.size;
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memcpy(st->codec->extradata, attachements[j].bin.data, attachements[j].bin.size);
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for (i=0; ff_mkv_mime_tags[i].id != CODEC_ID_NONE; i++) {
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if (!strncmp(ff_mkv_mime_tags[i].str, attachements[j].mime,
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strlen(ff_mkv_mime_tags[i].str))) {
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st->codec->codec_id = ff_mkv_mime_tags[i].id;
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break;
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}
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}
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}
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}
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chapters = chapters_list->elem;
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for (i=0; i<chapters_list->nb_elem; i++)
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if (chapters[i].start != AV_NOPTS_VALUE && chapters[i].uid)
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ff_new_chapter(s, chapters[i].uid, (AVRational){1, 1000000000},
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chapters[i].start, chapters[i].end,
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chapters[i].title);
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index_list = &matroska->index;
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index = index_list->elem;
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for (i=0; i<index_list->nb_elem; i++) {
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