Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

mpegts: fix teletext pts of streams with standalone pcr pid

Browse Source 
Signed-off-by: Marton Balint <cus@passwd.hu>
pull/293/head
Marton Balint 11 years ago
parent d83a5b5218
commit d2f60547c2
1 changed files with 17 additions and 5 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 22
      libavformat/mpegts.c

22
libavformat/mpegts.c
Unescape View File

@ -1071,16 +1071,28 @@ skip:
while ((p = av_find_program_from_stream(pes->stream, p, pes->st->index))) {
if (p->pcr_pid != -1 && p->discard != AVDISCARD_ALL) {
MpegTSFilter *f = pes->ts->pids[p->pcr_pid];
if (f && f->type == MPEGTS_PES) {
PESContext *pcrpes = f->u.pes_filter.opaque;
if (f->last_pcr != -1 && pcrpes && pcrpes->st && pcrpes->st->discard != AVDISCARD_ALL) {
if (f) {
AVStream *st = NULL;
if (f->type == MPEGTS_PES) {
PESContext *pcrpes = f->u.pes_filter.opaque;
if (pcrpes)
st = pcrpes->st;
} else if (f->type == MPEGTS_PCR) {
int i;
for (i = 0; i < p->nb_stream_indexes; i++) {
AVStream *pst = pes->stream->streams[p->stream_index[i]];
if (pst->codec->codec_type == AVMEDIA_TYPE_VIDEO)
st = pst;
}
}
if (f->last_pcr != -1 && st && st->discard != AVDISCARD_ALL) {
// teletext packets do not always have correct timestamps,
// the standard says they should be handled after 40.6 ms at most,
// and the pcr error to this packet should be no more than 100 ms.
// TODO: we should interpolate the PCR, not just use the last one
int64_t pcr = f->last_pcr / 300;
pes->st->pts_wrap_reference = pcrpes->st->pts_wrap_reference;
pes->st->pts_wrap_behavior = pcrpes->st->pts_wrap_behavior;
pes->st->pts_wrap_reference = st->pts_wrap_reference;
pes->st->pts_wrap_behavior = st->pts_wrap_behavior;
if (pes->dts == AV_NOPTS_VALUE || pes->dts < pcr) {
pes->pts = pes->dts = pcr;
} else if (pes->dts > pcr + 3654 + 9000) {

Write Preview
Loading…
Cancel
Save