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

FFmpeg trac at avcodec.org
Mon Dec 8 17:50:45 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 clam):

 I just found a workaround completely by chance -_-

 The chroma upscale works fine if I call libswscale to activate the
 interlaced flag :

 d:\ffmpeg\bin\ffmpeg -f mpeg -i bug.vob -vf scale=interl=1 -c:v prores
 test.mov

 Looks like the interlacing information is lost somewhere between
 libavcodec and libswscale.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4168#comment:4>
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