[FFmpeg-trac] #10377(undetermined:new): Intel QSV is broken in FFmpeg 6.0

FFmpeg trac at avcodec.org
Sat May 20 14:26:12 EEST 2023


#10377: Intel QSV is broken in FFmpeg 6.0
-------------------------------------+-------------------------------------
             Reporter:               |                     Type:  defect
  MineCommander                      |
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  6.0
  undetermined                       |
             Keywords:  qsv          |               Blocked By:
  h264_qsv                           |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Any QSV encoder/decoder cannot be used in FFmpeg 6.0, which is available
 in FFmpeg 5.1.2. I have tried reinstall driver, reset BIOS, switch video
 output GPU, etc., but the issue eventually seems to be on FFmpeg itself.
 Evidences exist that, for an instance, Shotcut, a video editor using
 FFmpeg as rendering core, is no longer able to export video using QSV
 hardware acceleration after updating to FFmpeg 6.0, while OBS still wokrs
 fine using QuickSync encoder.

 How to reproduce:

 Anything using h264_qsv as vcodec will fail with "Error creating a MFX
 session: -9." Example:
 {{{
 ffmpeg -i input.mkv -vcodec h264_qsv output.mp4
 }}}
 This command works fine on FFmpeg 5.1.2, however. Full log is uploaded
 onto pastebin: https://pastebin.com/28xRwkvr

 System Info:
 - OS: Windows 10 Pro 22H2 19045.2965
 - CPU: Intel Core i3-4170
 - GPUs: Nvidia GT 1030 (Primary, monitor connected), Intel HD Graphics
 4400 (Secondary, only for video processing), both are enabled and well-
 drived
 - Intel Driver Version: 20.19.15.5171
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10377>
FFmpeg <https://ffmpeg.org>
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