[Bug 109538] VAAPI HEVC encoding is unstable and produces garbled output

[Bug 109538] VAAPI HEVC encoding is unstable and produces garbled output

[bugzilla-daemon]

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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.

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[Bug 109538] VAAPI HEVC encoding is unstable and produces garbled output

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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

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[Bug 109538] VAAPI HEVC encoding is unstable and produces garbled output

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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.

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[Bug 109538] VAAPI HEVC encoding is unstable and produces garbled output

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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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