[FFmpeg-user] how to enable hardware acceleration in ffmpeg

[Yogesh Tyagi]

Hi,

I wanted to know whether VAAPI can return the decode data back to
application or the decoded data has to be displayed using VAAPI(by
vaPutSurface call).I am trying to plugin a hardware decoder(provided by a
separate media driver for a board) as a replacement of VAAPI into
FFmpeg.Will I have to display decoded data using X library or can I use
other display system to display this data.


Thanks and Regards,
Yogesh

On Sat, Mar 3, 2012 at 12:49 PM, Yogesh Tyagi <yogesh.bit2006 at gmail.com>wrote:

> Hi,
>
> Yes I  want to use vaapi to display media using hwaccel.Is there any
> option by which I can switch b/w software decoding and hwaccel at run time?
>
> Thanks and Regards,
> Yogesh
>
>
>
>
> On Fri, Mar 2, 2012 at 7:59 PM, Tom Evans <tevans.uk at googlemail.com>wrote:
>
>> On Fri, Mar 2, 2012 at 1:42 PM, Yogesh Tyagi <yogesh.bit2006 at gmail.com>
>> wrote:
>> > Hi,
>> >
>> > Is there any command line option in ffmpeg to enable hardware
>> acceleration
>> > for h264 decoding.I have configured and compiled ffmpeg with"
>> > --enable-vaapi --enable-hwaccel=h264_vaapi" options but ffmpeg is not
>> > invoking  decode_slice function of vaapi_h264.c.
>> >
>>
>> As I understand it, vdpau and vaapi are useful for decoding when you
>> want to display that decoded content. It's not a usable API, eg for
>> decoding video as a step for subsequently re-encoding it (if that
>> makes sense).
>>
>> IE, you can use vdpau/vaapi to display media using hwaccel, but you
>> can't use it to accelerate decoding whilst encoding.
>>
>> Cheers
>>
>> Tom
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>>
>
>
>
> --
> Thanks and Regards,
> Yogesh Tyagi
> Mobile No: 09911814030
>



-- 
Thanks and Regards,
Yogesh Tyagi
Mobile No: 09911814030