[FFmpeg-trac] #4533(avcodec:new): Broken MPEG-2 GOP after 1010b36d8672d891e77aa713e07ff749e8b0797f

[FFmpeg]

#4533: Broken MPEG-2 GOP after 1010b36d8672d891e77aa713e07ff749e8b0797f
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             Reporter:  kierank  |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  unspecified
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
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 Only reproducible via API so no ffmpeg log etc.

 https://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavcodec/mpeg12dec.c;h=efbd53e529fb0ec2c1dde19371a6caa587dd0cb4;hb=HEAD#l1318

 ff_set_sar needs to be called AFTER ff_set_dimensions
 Otherwise av_image_check_sar uses an invalid width/height

 (Thanks to Meuuh for report)

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Ticket URL: <https://trac.ffmpeg.org/ticket/4533>
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