[FFmpeg-trac] #424(undetermined:new): A/V desync on transport stream
FFmpeg
trac at avcodec.org
Thu Sep 8 15:10:30 CEST 2011
#424: A/V desync on transport stream
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by mjs973):
Hi Carl. The bitstream looks good to me. The transport stream DTS/PTS are
all good. The video has no B frames (I,P only), and uses PTS==DTS (which
is legal).
This appears to be the same bug I already fixed in trac #88. My own media
player, which includes the trac #88 patch, plays this stream fine. I hear
audio immediately at the start.
I don't have time to look at latest git today, but my guess is that
compute_pkt_fields() is corrupting the perfectly-good DTS/PTS timestamps
passed to it.
Mike
P.S. the audio volume is really, really low in this clip. Peaks are at
only 5% of full-scale.
--
Ticket URL: <http://avcodec.org/trac/ffmpeg/ticket/424#comment:3>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list