[Libva] AMD Llano status?

Gwenole Beauchesne gb.devel at gmail.com
Tue Oct 11 21:23:30 PDT 2011


Hi,

2011/10/12  <db at cucumalac.hu>:

>> Please test libva from current git master. There is a fix to fglrx
>> driver detection.
>
> The fix fixes the segfaults, however, the output of vainfo is suspect:
>
> libva: libva version 0.32.0
> Xlib:  extension "XFree86-DRI" missing on display ":0.0".
> libva: va_getDriverName() returns 0
> libva: Trying to open /usr/lib/dri/fglrx_drv_video.so
> libva: va_openDriver() returns 0
> lt-vainfo: VA API version: 0.32
> lt-vainfo: Driver version: Splitted-Desktop Systems XvBA backend for VA-API
> - 0.8.0
> lt-vainfo: Supported profile and entrypoints
>      VAProfileH264High               : VAEntrypointVLD
>      VAProfileVC1Advanced            : VAEntrypointVLD
>
> I don't see any entries for MPEG2 and the mpeg2vldemo test fails:
> main:vaQueryConfigEntrypoints (199) failed,exit

This is not suspect, this is plain normal. Public XvBA API only
supports H.264 & VC-1 VLD at this time. There is also some form of
MPEG-2 at the iDCT stage but no decoder will support it either. If you
want to use the MPEG-2 MC & iDCT decoding facilities on AMD platforms,
use XvMC instead (this is also provided by the XvBA library).

Summary: MPEG-2 VLD, MPEG-4:2 & H.264 MVC decoding are not exposed
through the current XvBA API (0.74). That's 0.75+ material.

Regards,
Gwenole.


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