[FFmpeg-trac] #4168(undetermined:new): defect : mpeg2 interlaced yuv420 chroma incorrectly decoded

[FFmpeg]

#4168: defect : mpeg2 interlaced yuv420 chroma incorrectly decoded
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             Reporter:  clam         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by cehoyos):

 Replying to [comment:19 clam]:
 > For MPEG2, DV and H264 it's a different matter since they use 4:2:0
 chroma coding and they must indicate in the stream (or the file's header)
 that the content is interlaced or not.

 As said, where I live, mpeg2video and h264 (1080) DVB streams are always
 flagged as interlaced, no matter if they are progressive or not. It was
 stated repeatedly on the user mailing that the same can be true for DVD
 streams, so I don't see how this flag can be used.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4168#comment:20>
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