[Mesa-dev] [Bug 110673] amdgpu hevc encoding problems: segment fault and contents of garbage

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110673

--- Comment #2 from zhoulei <mfk530 at gmail.com> ---
(In reply to Boyuan Zhang from comment #1)
> Hi Zhoulei,
> 
> Thanks for pointing out these 2 issues.
> 
> I reproduced issue#1, and have a fix submitted for code review:
> https://lists.freedesktop.org/archives/mesa-dev/2019-May/219392.html
> 
> Please give a try.
> 
> And I will investigate issue#2.

Hi Boyuan,

I have tried the patch in my R5 2400G(ArchLinux, mesa-19.0.4).

Segment fault is gone, but new issue is found.

reproduce: 

No more segment fault when using ffmpeg to produce hevc stream.

ffmpeg -vaapi_device /dev/dri/renderD128 -i input.avi -vf
'format=nv12,hwupload' -c:v hevc_vaapi -bf 0 -g 7 output.mp4

But Some error messages is shown when decoding the encoded stream.

$ mpv output.mp4 
Playing: output.mp4
 (+) Video --vid=1 (*) (hevc 1920x1080 23.976fps)
 (+) Audio --aid=1 (*) (aac 2ch 48000Hz)
Using hardware decoding (vaapi).
AO: [pulse] 48000Hz stereo 2ch float
VO: [vaapi] 1920x1088 vaapi[nv12]
AV: 00:00:00 / 00:00:04 (4%) A-V:  0.006 DS: 2.857/0
[ffmpeg/video] hevc: Could not find ref with POC 7
AV: 00:00:00 / 00:00:04 (11%) A-V:  0.004 DS: 2.643/0
[ffmpeg/video] hevc: Could not find ref with POC 14
AV: 00:00:00 / 00:00:04 (12%) A-V:  0.004 DS: 2.667/0
[ffmpeg/video] hevc: Could not find ref with POC -1
AV: 00:00:00 / 00:00:04 (17%) A-V:  0.004 DS: 2.619/0
[ffmpeg/video] hevc: Could not find ref with POC 5
AV: 00:00:01 / 00:00:04 (24%) A-V:  0.005 DS: 2.571/0
[ffmpeg/video] hevc: Could not find ref with POC 12
AV: 00:00:01 / 00:00:04 (26%) A-V:  0.005 DS: 2.581/0
[ffmpeg/video] hevc: Could not find ref with POC -1
AV: 00:00:01 / 00:00:04 (30%) A-V:  0.005 DS: 2.571/0
[ffmpeg/video] hevc: Could not find ref with POC 3
AV: 00:00:01 / 00:00:04 (37%) A-V:  0.006 DS: 2.548/0
[ffmpeg/video] hevc: Could not find ref with POC 10
AV: 00:00:01 / 00:00:04 (41%) A-V:  0.006 DS: 2.532/0
[ffmpeg/video] hevc: Could not find ref with POC -1
AV: 00:00:01 / 00:00:04 (43%) A-V:  0.006 DS: 2.531/0
[ffmpeg/video] hevc: Could not find ref with POC 1
AV: 00:00:02 / 00:00:04 (50%) A-V:  0.005 DS: 2.536/0
[ffmpeg/video] hevc: Could not find ref with POC 8
AV: 00:00:02 / 00:00:04 (56%) A-V:  0.005 DS: 2.524/0
[ffmpeg/video] hevc: Duplicate POC in a sequence: 0.
[ffmpeg/video] hevc: Error parsing NAL unit #1.
Error while decoding frame!
AV: 00:00:02 / 00:00:04 (62%) A-V:  0.005 DS: 2.565/0
[ffmpeg/video] hevc: Could not find ref with POC 6
AV: 00:00:03 / 00:00:04 (69%) A-V:  0.005 DS: 2.566/0
[ffmpeg/video] hevc: Could not find ref with POC 13
AV: 00:00:03 / 00:00:04 (71%) A-V:  0.004 DS: 2.564/0
[ffmpeg/video] hevc: Could not find ref with POC -1
AV: 00:00:03 / 00:00:04 (75%) A-V:  0.004 DS: 2.554/0
[ffmpeg/video] hevc: Could not find ref with POC 4
AV: 00:00:03 / 00:00:04 (82%) A-V:  0.004 DS: 2.556/0
[ffmpeg/video] hevc: Could not find ref with POC 11
AV: 00:00:03 / 00:00:04 (86%) A-V:  0.004 DS: 2.553/0
[ffmpeg/video] hevc: Could not find ref with POC -1
AV: 00:00:04 / 00:00:04 (88%) A-V:  0.003 DS: 2.546/0
[ffmpeg/video] hevc: Could not find ref with POC 2
AV: 00:00:04 / 00:00:04 (93%) A-V:  0.000 DS: 2.545/0

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