#11296: Vulkan Video Encode h264 doesn't handle gop size > 1
-------------------------------------+-------------------------------------
Reporter: Russell | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: h264_vulkan | Blocked By:
vulkan intel nvidia |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: ffmpeg creates very corrupted video when encoding with
vulkan on both ANV (Intel) & Nvidia & AMD.
How to reproduce:
{{{
% ffmpeg -init_hw_device vulkan=vkdev:0 -filter_hw_device vkdev -f lavfi
-i testsrc -t 10 -filter:v "format=nv12,hwupload" -an -c:v h264_vulkan
out.mp4
ffmpeg version N-117737-g10c02deccb Copyright (c) 2000-2024 the FFmpeg
developers
built with gcc 14.2.1 (GCC) 20240910
}}}
If I add {{{-g 1}}} the output video is not corrupted. Tested with Mesa
git 0a81434adf44eaeeb246a57e2f00a00a01e0e67a & nvidia drivers 565.57.01.
For ANV, note that you need to set {{{ANV_VIDEO_ENCODE=1}}} in the
environment.
I don't personally have an AMD device to test on, but I had someone test
for me and it was also very corrupted.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11296>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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