[FFmpeg-trac] #6276(avcodec:new): h264_vaapi & nvenc do not preserve aspect ratio changes

FFmpeg trac at avcodec.org
Sun Nov 17 17:01:06 EET 2019


#6276: h264_vaapi & nvenc do not preserve aspect ratio changes
-------------------------------------+-------------------------------------
             Reporter:  Tom_B        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  vaapi nvenc  |               Blocked By:
  aspect                             |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by tvsht):

 another one

 sample:
 https://send.firefox.com/download/59da97f53074be4e/#wCPgaoWYuGNypLxrW7-NzA
 output:
 https://send.firefox.com/download/456bfea4d1f3ef2e/#ev4es56EYiGStN7SnvQgUA

 changes from x1036 to x1040 and introduces green line at the bottom
 forcing size via vaapi_scale doesn't work and introduces additional glitch
 in the beginning

 -hwaccel_output_format vaapi \
 -c:v hevc_vaapi -qp 26   \
 -c:a copy -c:s copy -f matroska

 Posting here since it was marked as duplicate of this
 [https://trac.ffmpeg.org/ticket/8376 #8376]

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Ticket URL: <https://trac.ffmpeg.org/ticket/6276#comment:14>
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