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reorder pts into dts support

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Originally committed as revision 8431 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-03-17 14:27:01 +00:00
parent e8952fa571
commit d9e1efb7f8
1 changed files with 17 additions and 2 deletions
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19
libavformat/utils.c
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@ -578,7 +578,7 @@ static int64_t lsb2full(int64_t lsb, int64_t last_ts, int lsb_bits){
static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
AVCodecParserContext *pc, AVPacket *pkt)
{
int num, den, presentation_delayed, delay;
int num, den, presentation_delayed, delay, i;
/* handle wrapping */
if(st->cur_dts != AV_NOPTS_VALUE){
if(pkt->pts != AV_NOPTS_VALUE)
@ -615,6 +615,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
// av_log(NULL, AV_LOG_DEBUG, "IN delayed:%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64" st:%d pc:%p\n", presentation_delayed, pkt->pts, pkt->dts, st->cur_dts, pkt->stream_index, pc);
/* interpolate PTS and DTS if they are not present */
if(delay <=1){
if (presentation_delayed) {
/* DTS = decompression time stamp */
/* PTS = presentation time stamp */
@ -650,7 +651,21 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
pkt->dts = pkt->pts;
st->cur_dts = pkt->pts + pkt->duration;
}
// av_log(NULL, AV_LOG_DEBUG, "OUTdelayed:%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64"\n", presentation_delayed, pkt->pts, pkt->dts, st->cur_dts);
}
if(pkt->pts != AV_NOPTS_VALUE){
st->pts_buffer[0]= pkt->pts;
for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
st->pts_buffer[i]= (i-delay-1) * pkt->duration;
for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
if(pkt->dts == AV_NOPTS_VALUE)
pkt->dts= st->pts_buffer[0];
if(pkt->dts > st->cur_dts)
st->cur_dts = pkt->dts;
}
// av_log(NULL, AV_LOG_ERROR, "OUTdelayed:%d/%d pts:%"PRId64", dts:%"PRId64" cur_dts:%"PRId64"\n", presentation_delayed, delay, pkt->pts, pkt->dts, st->cur_dts);
/* update flags */
if (pc) {