[Libva] How to do Deinterlacing ?

[Sambhav]

If you are decoding field separate stream then alternating between TOP_FIELD
and BOTTON_FIELD needs to be done.
But if you have two separate fields and merge them to form one frame and
encode it , it becomes field interleaved. FRAME_PICTURE is given as the flag
display.
In the later case when you decode it you can see combing artifacts. I want
to do a deinterlacing of this decoded picture


---------- Forwarded message ----------
From: Ivor Hewitt <ivor at ivor.org>
Date: Thu, Nov 26, 2009 at 6:57 PM
Subject: Re: [Libva] How to do Deinterlacing ?
To: Sambhav <isambhav at gmail.com>
Cc: libva at lists.freedesktop.org


sorry if this is completely and utterly wrong, since I'm not an expert at
vaapi....
but if you're decoding a field interleaved stream shouldn't you be
alternating between TOP_FIELD and BOTTOM field in the flags for PutSurface?

Regards,
Ivor.

Sambhav wrote:

> Hi All,
>  I am decoding a field interleaved and encoded bitstream. When displaying
> this decoded Surface I can see combing artifacts in the picture.
> Is it possible to do deinterlacing on a FRAME PICTURE? If yes how to do it?
>  VA header file va_x11.h says
> " It basically performs a de-interlacing (if needed), color space
> conversion and scaling to the destination rectangle"
> When does deinterlacing happen ?
>  Also can anyone explain how to do Field display using vaPutSurface API.?
>  Regards,
> Sambhav
> ------------------------------------------------------------------------
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