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libavformat/utils: Treat subtitle streams as noninterleaved when 20 seconds have passed without a packet 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
wg 2011-09-07 00:10:44 +02:00 committed by Michael Niedermayer
parent c0323b9c9b
commit 37ed5df5c5
1 changed files with 28 additions and 4 deletions
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32
libavformat/utils.c
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@ -3220,17 +3220,41 @@ static int ff_interleave_compare_dts(AVFormatContext *s, AVPacket *next, AVPacke
int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
AVPacketList *pktl;
int stream_count=0;
int stream_count=0, noninterleaved_count=0;
int64_t delta_dts_min = INT64_MAX;
int i;
if(pkt){
ff_interleave_add_packet(s, pkt, ff_interleave_compare_dts);
}
for(i=0; i < s->nb_streams; i++)
stream_count+= !!s->streams[i]->last_in_packet_buffer;
for(i=0; i < s->nb_streams; i++) {
if (s->streams[i]->last_in_packet_buffer) {
int64_t delta_dts =
av_rescale_q(s->streams[i]->last_in_packet_buffer->pkt.dts,
s->streams[i]->time_base,
AV_TIME_BASE_Q) -
av_rescale_q(s->packet_buffer->pkt.dts,
s->streams[s->packet_buffer->pkt.stream_index]->time_base,
AV_TIME_BASE_Q);
if (delta_dts < delta_dts_min)
delta_dts_min = delta_dts;
++stream_count;
} else {
if(s->streams[i]->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
++noninterleaved_count;
}
}
if(stream_count && (s->nb_streams == stream_count || flush)){
if (s->nb_streams == stream_count) {
flush = 1;
} else if (!flush &&
s->nb_streams == stream_count+noninterleaved_count &&
delta_dts_min > 20*AV_TIME_BASE) {
av_log(s, AV_LOG_DEBUG, "flushing with %d noninterleaved\n", noninterleaved_count);
flush = 1;
}
if(stream_count && flush){
pktl= s->packet_buffer;
*out= pktl->pkt;