[FFmpeg-trac] #2227(undetermined:new): ffmpeg incorrectly identifying mjpeg as video stream instead of attachment

[FFmpeg]

#2227: ffmpeg incorrectly identifying mjpeg as video stream instead of attachment
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             Reporter:  ramitbhalla  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  wtv          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by dodgexander):

 So if ffmpeg won't mark the stream as something else, how can you
 differentiate between what is a video stream and what isn't?

 If you need to map streams independently dependent on the the source file,
 how do you know which one out of the streams is the jpeg and which is
 video? Its all well saying -map 0 doesn't intelligently know which streams
 to map and which not too, but since there is now no way to differentiate
 between the two types of streams, there should be a different function,
 other than having to find out which of the streams is a jpeg first.

 It would be interesting to know exactly what was trying to be achieved
 here, eg why it is better to be marked as a video stream rather than an
 attachment.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2227#comment:54>
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