[FFmpeg-trac] #11158(ffmpeg:new): hevc_cuvid does not correctly decode h265 video

FFmpeg trac at avcodec.org
Wed Aug 28 03:43:24 EEST 2024


#11158: hevc_cuvid does not correctly decode h265 video
---------------------------------+--------------------------------------
             Reporter:  yuhongl  |                     Type:  defect
               Status:  new      |                 Priority:  critical
            Component:  ffmpeg   |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 Summary of the bug: hevc_cuvid does not correctly decode h265 video, but
 hevc correctly decode h265 video.
 How to reproduce:
 {{{
 % ffmpeg -loglevel warning -hwaccel cuda -hwaccel_device 0  -vcodec
 hevc_cuvid -i h265.mp4 output_cuvid.mp4

 % ffmpeg -loglevel warning -hwaccel cuda -hwaccel_device 0  -vcodec hevc
 -i h265.mp4 output_hevc.mp4
 ffmpeg version: master branch, hash tag:
 d89930f8666c563a96f1dc1835b450522b4cd6da
 built on:
   Ubuntu 20.04.6 LTS
   ./configure --enable-cuda --enable-cuvid --enable-nvdec --enable-nvenc
 --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include
 --extra-ldflags=-L/usr/local/cuda/lib64 --disable-x86asm
 }}}

 The file output_cuvid.mp4 is wrong, output_hevc.mp4 is correct.

 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11158>
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