[FFmpeg-trac] #1952(undetermined:new): FFMPEG not able to copy empty audio stream in wtv (was: FFMPEG not able to copy audio streams from WTV to TS)

FFmpeg trac at avcodec.org
Thu Nov 22 22:11:55 CET 2012

#1952: FFMPEG not able to copy empty audio stream in wtv
             Reporter:  ramitbhalla  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  wtv ac3      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
Changes (by cehoyos):

 * keywords:   => wtv ac3
 * version:  unspecified => git-master


 This is not necessarily a bug:
 FFmpeg cannot copy streams that are detected but not correctly identified
 (like stream 0:1 in this case). The question is therefore: Is it a bug
 that the stream is detected (is there actually no stream)? Or is there any
 software that correctly identifies (plays) the second audio stream?

 If there is a bug (in the wtv demuxer or the ac3 decoder) it is certainly
 not mpeg-ts related: You can reproduce the problem with the following
 command line:
 $ ffmpeg -i broken_remux.wtv -map 0:2 -acodec copy out.ac3

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1952#comment:1>
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