[FFmpeg-trac] #6358(ffmpeg:open): ffmpeg requires constant output dimensions

[FFmpeg]

#6358: ffmpeg requires constant output dimensions
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             Reporter:  01sas        |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  ffmpeg
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by 01sas):

 First of all thanks for your responses, guys.

 Second: I can confirm that filter chains works fine in this case according
 to results which I can see.

 Third: sorry for misunderstanding I was not talking about setting SAR into
 saved image, square pixels is just fine. I just want the output image
 stream to reflect possible change in aspect ratio and image to be stored
 with correct resolution. For command and test video fragment which I
 attached to ticket I expect that first two images will be with resolution
 720x405 and the rest should be with resolution 720x540.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6358#comment:4>
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