[FFmpeg-trac] #1801(undetermined:new): muxing.c example code fails for most formats
FFmpeg
trac at avcodec.org
Wed Oct 10 13:31:55 CEST 2012
#1801: muxing.c example code fails for most formats
-------------------------------------+-------------------------------------
Reporter: AztecC | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: muxing.c | Blocked By:
pts dts | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: The muxing.c example in doc/examples only seems to
work for a few formats like .avi. Some formats seem to work like .flv, but
it produces way too many frames. Anything involving H264 generates a
pts(0) < dts(0) error. The fix is fairly simple. Add:
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q( pkt.pts, c->time_base, st->time_base );
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q( pkt.dts, c->time_base, st->time_base );
after the call to avcodec_encode_video2 inside the test for 'got_output'.
It can also be added after the call to avcodec_encode_audio2 as well for
completeness.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1801>
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