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matroskadec: merge ASS events which share the same pts in the same AVPavket

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Originally committed as revision 15455 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2008-09-28 23:06:25 +00:00
parent 3df2be9fa7
commit d5e34dcb72
1 changed files with 18 additions and 0 deletions
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18
libavformat/matroskadec.c
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@ -205,6 +205,7 @@ typedef struct {
/* the packet queue */
AVPacket **packets;
int num_packets;
AVPacket *prev_pkt;
int done;
int has_cluster_id;
@ -964,6 +965,15 @@ static void matroska_fix_ass_packet(MatroskaDemuxContext *matroska,
}
}
static void matroska_merge_packets(AVPacket *out, AVPacket *in)
{
out->data = av_realloc(out->data, out->size+in->size);
memcpy(out->data+out->size, in->data, in->size);
out->size += in->size;
av_destruct_packet(in);
av_free(in);
}
static void matroska_convert_tags(AVFormatContext *s, EbmlList *list)
{
MatroskaTag *tags = list->elem;
@ -1629,7 +1639,14 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
if (st->codec->codec_id == CODEC_ID_SSA)
matroska_fix_ass_packet(matroska, pkt, duration);
if (matroska->prev_pkt &&
matroska->prev_pkt->pts == timecode &&
matroska->prev_pkt->stream_index == st->index)
matroska_merge_packets(matroska->prev_pkt, pkt);
else {
dynarray_add(&matroska->packets, &matroska->num_packets, pkt);
matroska->prev_pkt = pkt;
}
}
if (timecode != AV_NOPTS_VALUE)
@ -1649,6 +1666,7 @@ static int matroska_parse_cluster(MatroskaDemuxContext *matroska)
MatroskaBlock *blocks;
int i, res;
offset_t pos = url_ftell(matroska->ctx->pb);
matroska->prev_pkt = NULL;
if (matroska->has_cluster_id){
/* For the first cluster we parse, its ID was already read as
part of matroska_read_header(), so don't read it again */