[Libva] Status of libva and mplayer/ffmpeg?

[Gwenole Beauchesne]

Hi,

2011/10/27 Karthik Kailash <karthik at freestreammedia.com>:

> - Did you have to apply any patches to ffmpeg checked out from Git?  Which
> branch/tag of ffmpeg did you use?

Unless you want to sync both mplayer & ffmpeg git trees, I recommend
you fetch out the ffmpeg subdirectory from the ffmpeg.git around the
same date as the latest commit in mplayer. For ffmpeg.git use
something >= 2011/10/06. For libav.git, use something >= 2011/10/11 or
so.

> - Were you able to get the decoding/encoding acceleration working from
> ffmpeg command line?

This does not exist yet. More generally, there is no HW
decoding/encoding acceleration in ffmpeg command line tool aside from
Crystal HD (for decoding only).

> - Which codec does ffmpeg use?  When I run "ffmpeg -codecs", I only see h264
> and h264_vdpau.  Do you see a codec that corresponds to h264 with vaapi?

"ffmpeg -codecs" should not even list h264_vdpau since it won't work
in the tool either. However, the fact that you don't even see
h264_vaapi indicates that you probably have not built FFmpeg with
VA-API support (--enable-vaapi + making sure libva headers are
available and usable). i.e. please check config.log & config.mak.

Regards,
Gwenole.

> On Thu, Oct 6, 2011 at 10:26 AM, Erik Slagter <erik at slagter.name> wrote:
>>
>> *** UPDATE ***
>>
>> It seems to work now!
>>
>> The -va option was really there, that whas just my stupidity.
>>
>> I added "--enable-xrender" to the config flags.
>>
>> Also I added "-vf-clr" to the options, which avoided the filters
>> deinterlace and screenshot from being used, apparantly using filters breaks
>> using vaapi (I could understand that...)
>>
>> CPU usage is 55% without vaapi and 6-9% using vaapi.
>>
>> Stubborn as I am, I will still try again to make the patched mplayer to be
>> in sync with the svn version...
>> _______________________________________________
>> Libva mailing list
>> Libva at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/libva
>
>
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