[FFmpeg-trac] #11613(avformat:closed): ffv1_vulkan and level 4 does not work well

[FFmpeg]

#11613: ffv1_vulkan and level 4 does not work well
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             Reporter:  Andrew-R    |                    Owner:  (none)
                 Type:  defect      |                   Status:  closed
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:  fixed
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Andrew-R):

 It seems that ffv1_vulkan outputs

 {{{
 bash-5.1$ mediainfo  frame-ffv1-vulkan.avi
 General
 Complete name                            : frame-ffv1-vulkan.avi
 Format                                   : AVI
 Format/Info                              : Audio Video Interleave
 File size                                : 81.4 MiB
 Duration                                 : 40 s 0 ms
 Overall bit rate mode                    : Variable
 Overall bit rate                         : 17.1 Mb/s
 Frame rate                               : 25.000 FPS
 Writing application                      : Lavf62.0.102

 Video
 ID                                       : 0
 Format                                   : FFV1
 Format version                           : Version 4.3
 Codec ID                                 : FFV1
 Duration                                 : 40 s 0 ms
 Bit rate mode                            : Variable
 Bit rate                                 : 17.1 Mb/s
 Width                                    : 720 pixels
 Height                                   : 400 pixels
 Display aspect ratio                     : 16:9
 Frame rate                               : 25.000 FPS
 Compression mode                         : Lossless
 Bits/(Pixel*Frame)                       : 2.371
 Stream size                              : 81.4 MiB (100%)
 Conformance errors                       : 1
  HEADER                                  : Yes
   version                                : Yes
    LATERVERSION                          : LATERVERSION (conf, offset
 0xD4)

 }}}

 FFV1 v 4.3

 and software ffv1 encoder does

 {{{
 bash-5.1$ mediainfo  frame-ffv1.avi
 General
 Complete name                            : frame-ffv1.avi
 Format                                   : AVI
 Format/Info                              : Audio Video Interleave
 File size                                : 55.4 MiB
 Duration                                 : 40 s 0 ms
 Overall bit rate mode                    : Variable
 Overall bit rate                         : 11.6 Mb/s
 Frame rate                               : 25.000 FPS
 Writing application                      : Lavf62.0.102

 Video
 ID                                       : 0
 Format                                   : FFV1
 Format version                           : Version 3.4
 Format settings, Slice count             : 4 slices per frame
 Codec ID                                 : FFV1
 Duration                                 : 40 s 0 ms
 Bit rate mode                            : Variable
 Bit rate                                 : 11.6 Mb/s
 Width                                    : 720 pixels
 Height                                   : 400 pixels
 Display aspect ratio                     : 16:9
 Frame rate                               : 25.000 FPS
 Color space                              : YUV
 Chroma subsampling                       : 4:2:0
 Bit depth                                : 8 bits
 Scan type                                : Progressive
 Compression mode                         : Lossless
 Bits/(Pixel*Frame)                       : 1.612
 Stream size                              : 55.4 MiB (100%)
 coder_type                               : Golomb Rice
 ErrorDetectionType                       : Per slice
 }}}

 FFV1 version 3.4/Colomb

 So, without any option sw encoded ffv1 plays in earlier ffmpeg/mpv and hw
 encoded ffv1 only plays in new ffplay (and may be mpv linked to it)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11613#comment:7>
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