[FFmpeg-trac] #4163(undetermined:new): Encodes ncompatible videos from similar picture and audio files

[FFmpeg]

#4163: Encodes ncompatible videos from similar picture and audio files
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             Reporter:  paheikki     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by paheikki):

 As these are run from a script, with the prototype being exactly like
 above and there being a lot of files, it will take some time to collect
 that kinds of logs. I will do that. Also, removing the subtitles and
 retesting will take some time, because of the rendering of a new set takes
 about three hours.

 Anyway, according to Romain, "the only difference is the presence of the
 aspect_ratio_info_present_flag flag in the SPS" so this is the basic
 question why it sometimes is and sometimes isn't in the output file...

 I will try the options -vcodec mpeg4 -qscale 2 you proposed.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4163#comment:2>
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