Bug 110850

Summary: Vlc fails to decode video using vaapi
Product: Mesa Reporter: Akarshan Biswas <akarshanbiswas>
Component: Drivers/Gallium/radeonsiAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact: Default DRI bug account <dri-devel>
Severity: normal    
Priority: medium    
Version: 19.1   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Akarshan Biswas 2019-06-07 07:05:18 UTC 
Tested Mesa version: 19.1.0 rc4, 19.0.5

Operating System: Fedora 30 with kernel 5.1.6

VLC version: 3.0.7 Vetinari (revision 3.0.6-223-g5fc4822ace)

GPU's tested: Both on Radeon RX550 and AMD APU a9-9410(stoney series)

Testing on both Xorg and Wayland


This bug is present since long time, selecting either vaapi video decoder or vaapi video decoder via drm in vlc--> toos --> preferences--> Input/Codecs --> hardware accelerated decoding fails and vlc switches to either vdpau or software decoding.
(vdpau driver can't decode some hevc videos, vdpau is not supported on wayland)

Steps to reproduce:

1) After selecting vaapi video decoder in vlc, run vlc on a terminal with the -v flag (for verbose)
2) play any media
3) Check the terminal ( Meanwhile vlc will try to switch to vdpau)



Actual results:
vlc's vaapi decoder fails with:
```
libva info: VA-API version 1.4.1
libva info: va_getDriverName() returns 0
libva info: User requested driver 'radeonsi'
libva info: Trying to open /usr/lib64/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_4
libva info: va_openDriver() returns 0
[00007f4c78001f60] glconv_vaapi_x11 gl error: vaDeriveImage: operation failed
[00007f4c7c062b30] main video output error: video output creation failed
[00007f4c88056060] main decoder error: failed to create video output
```

Expected result:
Vlc should play vaapi as it does in Intel GPUs.



I have a vlc bug ticket which says that the driver is buggy here: https://trac.videolan.org/vlc/ticket/21194
Comment 1 C. Leu 2019-09-03 13:25:30 UTC 
(In reply to Akarshan Biswas from comment #0)

I can confirm a similar issue. In my case, the problem occurs on older Radeon hardware (HD 3650) which uses the r600 driver. The result is the same, no hardware acceleration is possible through the integrated unified video decoder (UVD). CPU has around 100% load.

It seems that the VA-API is broken, at least for certain systems.

Mesa version: 19.0.8

OS: Kubuntu 18.04.3 LTS with kernel 5.0.0-27

Kaffeine: 2.0.18

Error message:

libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/r600_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
[00007fabb0002bd0] glconv_vaapi_x11 gl error: vaDeriveImage: invalid VAImageFormat
[00007fabbc1cbe10] main video output error: video output creation failed
[00007fabe8031800] main decoder error: failed to create video output
Comment 2 GitLab Migration User 2019-09-25 18:50:11 UTC 
-- GitLab Migration Automatic Message --

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