[Libva] rescale frame. HD4600 Haswell.

[Nikita Orlov]

thanks, we will try, if I will have more questions, I will ask you.

26.11.2014, 21:02, "Peter Frühberger" <peter.fruehberger at gmail.com>:
> Hi,
>
> here is a more advanced example of doing deinterlacing with VPP, you
> can change the filter operation of course to do scaling:
> https://github.com/xbmc/xbmc/blob/master/xbmc/cores/dvdplayer/DVDCodecs/Video/VAAPI.cpp#L2702
>
> Usage of VPP is always the same, no matter of the actual operation.
>
> Best Regards
> Peter
>
> 2014-11-26 18:53 GMT+01:00 Nikita Orlov <nikitos1550 at yandex.ru>:
>>  Hi!
>>
>>  Could you point me to some exmaples of scaling before encoding?
>>  Can`t find any docs about it around web :-(
>>
>>  Thanks in advance!
>>
>>  26.11.2014, 16:52, "Steven Toth" <stoth at kernellabs.com>:
>>>  \> But, what do you mean about pre and post processing?
>>>>   Pre and post what operation? Pre video encoding and past video encoding?
>>>>
>>>>   If we are talking about encoding, I can`t imagine any post processing, because result
>>>>   of encoding is bitstream.
>>>>
>>>>   Could you explain it for me a bit more. Please.
>>>  The hardware has a Video Processing Pipeline, that can apply various
>>>  effects and transforms prior to encoding. Once of those mechanisms (as
>>>  Nikita pointed out) is a video scaler.
>>>
>>>  So, yes, you can scale the video prior to encoding. I've used it for
>>>  scaling down, although I don't think I've ever tried to scale up.
>>>
>>>  --
>>>  Steven Toth - Kernel Labs
>>>  http://www.kernellabs.com
>>  --
>>  Nikita Orlov
>>  Skype: nik_stet
>>  QQ: 2717846083
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>
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-- 
Nikita Orlov
Skype: nik_stet
QQ: 2717846083