[FFmpeg-trac] #7502(undetermined:new): VAAPI encoding on Coffee Lake skipping/missing frames

FFmpeg trac at avcodec.org
Fri Nov 9 20:55:52 EET 2018

#7502: VAAPI encoding on Coffee Lake skipping/missing frames
             Reporter:  dseeker      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  vaapi        |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0

Comment (by dseeker):

 This fraction problem seems to extend beyond the vaapi encoder. The same
 content outputs incorrectly with image extraction (png or jpg). it's
 necessary to manually add scaling with the appropriate AR to adjust,
 otherwise the output scaling is incorrect.

 I couldn't test the new branches, but was able to fix all the problems
 with manually overriding the AR truncating to 6 digits

Ticket URL: <https://trac.ffmpeg.org/ticket/7502#comment:5>
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