[FFmpeg-trac] #542(undetermined:new): Missing audio when encoding to mpeg-ts with "-threads 0"
FFmpeg
trac at avcodec.org
Fri Oct 14 20:28:20 CEST 2011
#542: Missing audio when encoding to mpeg-ts with "-threads 0"
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Reporter: terran | Owner: michael
Type: defect | Status: new
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by terran):
The problem is that when I use libavformat to open the file, it doesn't
find the audio stream:
Output #0, mpegts, to 's':
Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 1920x1080,
q=2-31, 90k tbn, 30 tbc
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 0 channels
[mpegts @ 0x18cf3ee0] sample rate not set
Per your other question, mpeg4 does not work with -threads 0:
{{{
[mpeg4 @ 0x36ea180] automatic thread number detection not supported by
codec, patch welcome
}}}
I've provided a lot of other information, including isolating the
changelist where this broke. Is any of this useful? It looks like it's
triggered by the changes in sending qmin, qmax and sc_threshold. I disable
scenecut detection with '-sc_threshold 0' which may also be related.
If you there is a private fpt host I could use to upload the file I would
provide it so you can reproduce.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/542#comment:27>
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