Bug 112133

Summary: AMD Radeon 5700 / Navi: VAAPI encoding generates garbled output
Product: DRI Reporter: KLingel <temp201602>
Component: DRM/AMDgpuAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: not set    
Version: DRI git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:

Description KLingel 2019-10-25 10:37:58 UTC
Using ffmpeg to encode video to h264/hevc with constant or variable bitrate results in completely garbled output video on navi/radeon 5700 gpu.

ffmpeg command used:
ffmpeg -init_hw_device vaapi=foo:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device foo \
-i <input file> -filter_hw_device foo -vf 'format=nv12|vaapi,hwupload' -c:v hevc_vaapi -b:v 5000k -maxrate 5000k -f matroska <output file>
-This issue also applies to h264 encoding (replace "hevc_vaapi" with "h264_vaapi" above).

HW used:
AMD Radeon 5700 XT

SW used:
mesa-git 1:19.3.0_devel.116641.f11ea226664
libva-utils 2.5.0
ffmpeg 1:4.2.1

This issue sounds a bit like BUG 109538, however #109538 speaks of "garbled line at the bottom" where I get completely garbled output, not just at the bottom.

In additon, ffmpeg stalls/crashes sometimes as described in #109538 with:
[drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring vcn_enc0 timeout, signaled seq=150025, emitted seq=150027
[drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process ffmpeg pid 228611 thread ffmpeg:cs0 pid 228612
Comment 1 Martin Peres 2019-11-19 09:58:53 UTC
-- 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/943.

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