[FFmpeg-trac] #1349(ffmpeg:reopened): itsoffset doesn't work for second input file (audio)

[FFmpeg]

#1349: itsoffset doesn't work for second input file (audio)
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             Reporter:  bombo       |                    Owner:
                 Type:  defect      |                   Status:  reopened
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:  itsoffset   |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Oddthinking):

 I believe I have encountered this same problem with ffmpeg version
 N-82225-gb4e9252.

     ffmpeg -y -itsoffset 28.84 -i soundtrack.wav -framerate 30 -i %d.png
 -r 30 -vcodec mpeg4 generated.mp4

 The generated file has a soundtrack that starts immediately, when I expect
 it to be delayed.

 If I change the final extension:

     ffmpeg -y -itsoffset 28.84 -i soundtrack.wav -framerate 30 -i %d.png
 -r 30 -vcodec mpeg4 generated.mkv

 the soundtrack is now delayed by 28 and a bit seconds.

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Ticket URL: <https://trac.ffmpeg.org/ticket/1349#comment:9>
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