[Theora-dev] yuv2rgb

[Alen Ladavac]

Here are some usefull references:

a) checkout http://www.fourcc.org/yuv.php
b) search for "Video Rendering with 8-Bit YUV Formats" on
http://msdn.microsoft.com/library

To help you filter the information you are interested in, the format that
theora uses internally is officially called YV12.

That's regarding the color format. I hope you understand the image layout
tricks with negative strides etc.

HTH,
Alen

----- Original Message -----
From: "lluis" <lluis at artefacte.org>
To: <theora-dev at xiph.org>
Sent: Thursday, December 09, 2004 00:30
Subject: [Theora-dev] yuv2rgb


>
> hi all,
>
> i'm trying to code a tool to get some images from a ogg/theora file ....
>
> so basically i need to get a frame and convert to rgb ... and here is my
> question (sorry, i'm newbe here) ...
>
> how to convert a yuv_buffer to a rgb matrix ?
>
> i tryied diferent ways but my mistakes are bassically cause i don't
>  understant how yuv_buffer structure works ...
>
> anybody can help? thanks a lot.
>
> ll-.
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