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

FFmpeg trac at avcodec.org
Fri Jun 6 21:16:03 EEST 2025


#11494: Encoding to ffv1 produces broken bitstream for specific sample with
specific settings
-------------------------------------+-------------------------------------
             Reporter:  Damian       |                    Owner:  (none)
  Höster                             |
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avformat
              Version:  unspecified  |               Resolution:  fixed
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by mkver):

 * component:  avcodec => avformat
 * resolution:   => fixed
 * status:  new => closed

Comment:

 Fixed in 92e310eb82e04713e55d248b65c22f0eb95afada.
 The encoded file is actually fine; a FFmpeg with the above commit can
 handle it.

 (When I wrote 92e310eb82e04713e55d248b65c22f0eb95afada, I thought that it
 could only break files encoded using slicecrc mode 2 which is currently
 experimental. Yet I was wrong: This bug made the decoder read the slicecrc
 mode as two for your file, although the encoder only used one.)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11494#comment:1>
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