[FFmpeg-trac] #11494(avcodec:new): Encoding to ffv1 produces broken bitstream for specific sample with specific settings

[FFmpeg]

#11494: Encoding to ffv1 produces broken bitstream for specific sample with
specific settings
-------------------------------------+-------------------------------------
             Reporter:  Damian       |                     Type:  defect
  Höster                             |
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:
                                     |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 **How to reproduce:**
 Download br2049-00006.mkv from here: https://mega.nz/file/UCw1AQ7D
 #-oQ_Hcob_VByBC-KSqvJ2xuV7GZkvkCJ-XOrU00zQeg
 Reencode like this:
 ffmpeg -i br2049-00006.mkv -vcodec ffv1 -pass 1 -coder 1 -context 1
 -slices 24 -f null /dev/null && ffmpeg -i br2049-00006.mkv -vcodec ffv1
 -pass 2 -coder 1 -context 1 -slices 24 broken-ffv1.mkv
 Then try to decode.
 I get errors like these:
 {{{
 [ffv1 @ 0x57b2744be500] CRC mismatch F9B52803!
 }}}
 {{{
 [vist#0:0/ffv1 @ 0x57b2744dec00] [dec:ffv1 @ 0x57b2744e0f40] Error while
 opening decoder: Invalid data found when processing input
 }}}

 ffmpeg version N-118655-g696ea1c223
 on Arch Linux
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11494>
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