[FFmpeg-trac] #542(undetermined:new): Missing audio when encoding to mpeg-ts with "-threads 0"

[FFmpeg]

#542: Missing audio when encoding to mpeg-ts with "-threads 0"
-------------------------------------+-------------------------------------
             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):

 > ffmpeg -i rehearsal.mp4 -threads 4 -vcodec libx264 -b:v 7000000 -strict
 experimental -acodec aac out.ts works fine?

 It does work at the moment, as does the previous command with -threads 4,
 but changing to -threads 0 causes the failure again. The behavior is non-
 deterministic when -threads 4, but will always fail with -threads 0
 apparently.

 In other words, this fails too:

 {{{
 ffmpeg -i rehearsal.mp4 -threads 0 -vcodec libx264 -b:v 7000000 -strict
 experimental -acodec aac out.ts
 }}}

 But this does not:

 {{{
 ffmpeg -i rehearsal.mp4 -threads 4 -vcodec libx264 -b:v 7000000 -strict
 experimental -acodec aac out.ts
 }}}

 Also, I'm using 'git bisect' to narrow down the changelist that introduced
 the problem. So far, I can say that it happened between sept 5 and sept
 10. I'll provide more details on that when I narrow further.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/542#comment:16>
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