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

FFmpeg trac at avcodec.org
Mon Dec 8 22:39:32 CET 2014


#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 kierank):

 It can't be fixed in swscale directly because swscale has no concept of
 interlaced video - as you say it assumes chroma is associated with the
 nearest line. vf_scale is a wrapper that basically calls swscale twice for
 interlaced video, one call per field - this is the simplest fix by far.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4168#comment:7>
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