[FFmpeg-trac] #1966(avcodec:new): first field missing playing dvd with commit 8824a9ed

[FFmpeg]

#1966: first field missing playing dvd with commit 8824a9ed
---------------------------------+--------------------------------------
             Reporter:  dylex    |                     Type:  defect
               Status:  new      |                 Priority:  minor
            Component:  avcodec  |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 Playing certain DVDs (MPEG2  720x480  (aspect 3)  29.970 fps  8800.0 kbps,
 under mplayer) after ffmpeg commit 8824a9ed "mpeg12: clean current picture
 ptr." results in many error messages:
 [mpeg2video @ 0xf404a0]first field missing
 and blank video.  (Audio continues to work fine.)

 Reverting this commit fixes the problem and video plays perfectly with the
 following messages:
 [mpeg2video @ 0xf404a0]allocate dummy last picture for field based first
 keyframe
 [mpeg2video @ 0xf404a0]ac-tex damaged at 7 6

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1966>
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