https://bugs.freedesktop.org/show_bug.cgi?id=109538
Bug ID: 109538 Summary: VAAPI HEVC encoding is unstable and produces garbled output Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: tempel.julian@gmail.com
Do
ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i 1080p_h.264_60fps.mp4 -c:v hevc_vaapi -qp 22 -tier high -c:a copy output.mp4
Several times and browse the web with Firefox while doing so. Sooner or later (rather sooner) the encoding will either hang or the driver crashes completely and I need to perform a hard reset. The encoding settings don't seem to matter as long -c:v hevc_vaapi is used. -c:v h264_vaapi seems to be totally stable.
The encoding result of -c:v hevc_vaapi also shows a garbled line at the bottom of the video, while -c:v h264_vaapi looks fine.
This is with a RX 580 mesa-git 19.1.0_devel.107212.ab940b0d972 linux 4.20.6 & drm-next-5.1-wip f9028b9278422fdf186f1b88662e28ed24e13df8 libva 2.4 ffmpeg-git b429c86d84cfc964c84bc68ec56799802de2b25a
There seems to be a difference between linux 4.20.6 & drm-next-5.1-wip though. I couldn't make the stable kernel crash entirely, instead just the encoding process started to hang.
https://bugs.freedesktop.org/show_bug.cgi?id=109538
--- Comment #1 from gregory shu gregor@outlook.com --- I'm doing it the other way around hevc_vaapi 10 bit to h264_vaapi and have similar results, garbled green output
ffmpeg -threads 4 \ -init_hw_device vaapi=amd:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device amd -filter_hw_device amd \ -i nexp.mkv' \ -vf "scale_vaapi=format=nv12" \ -c:v h264_vaapi -profile:v 578 \ -c:a copy -c:s copy \ -f mpegts -y plop.mkv
libva info: VA-API version 1.6.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib64/va/drivers/radeonsi_drv_video.so libva info: Found init function __vaDriverInit_1_6 libva info: va_openDriver() returns 0 vainfo: VA-API version: 1.6 (libva 2.6.0.pre1) vainfo: Driver version: Mesa Gallium driver 19.2.0-devel for AMD RAVEN (DRM 3.32.0, 5.2.0-gentoo, LLVM 8.0.0) vainfo: Supported profile and entrypoints VAProfileMPEG2Simple : VAEntrypointVLD VAProfileMPEG2Main : VAEntrypointVLD VAProfileVC1Simple : VAEntrypointVLD VAProfileVC1Main : VAEntrypointVLD VAProfileVC1Advanced : VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice VAProfileH264Main : VAEntrypointVLD VAProfileH264Main : VAEntrypointEncSlice VAProfileH264High : VAEntrypointVLD VAProfileH264High : VAEntrypointEncSlice VAProfileHEVCMain : VAEntrypointVLD VAProfileHEVCMain : VAEntrypointEncSlice VAProfileHEVCMain10 : VAEntrypointVLD VAProfileJPEGBaseline : VAEntrypointVLD VAProfileVP9Profile0 : VAEntrypointVLD VAProfileVP9Profile2 : VAEntrypointVLD VAProfileNone
https://bugs.freedesktop.org/show_bug.cgi?id=109538
--- Comment #2 from tempel.julian@gmail.com --- Doesn't crash anymore, but there is still a garbled line at the bottom of video frames.
https://bugs.freedesktop.org/show_bug.cgi?id=109538
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED
--- Comment #3 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/689.
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