2009-02-24 10:00:18     Is there a way to submit YUV directly from Mplayer to ADV7393 framebuffer?

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2009-02-24 10:00:18     Is there a way to submit YUV directly from Mplayer to ADV7393 framebuffer?

jan petersen (BOUVET ISLAND)

Message: 69816   

 

Hello, i'm using a BF537 with a ADV7393, i need to play a full screen video in PAL(720x576) without a lose of speed.

 

At moment the video is running but it's not fast enough.

 

There is a setting to change the framebuffer of the 7393 from PAL(RGB) to PAL(YCBCR) does someone know if there is a way to give the mplayer YUV data directly to the YCBCR framebuffer? When i change the framebuffer setting to YCBCR, mplayer continues his YUV--->RGB and i just get a ugly color...

 

greetings jan.

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2009-02-24 16:40:15     Re: Is there a way to submit YUV directly from Mplayer to ADV7393 framebuffer?

Robin Getz (UNITED STATES)

Message: 69842   

 

Jan:

 

/dev/fb in Linux is RGB. To make it YCrCb - would require re-writing the application that writes to the frame buffer. (in your case mplayer).

 

You might be able to write a v4l driver - and use something like:

 

lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2001-November/002595.html

 

to make it work.

 

-Robin

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2009-02-25 02:45:42     Re: Is there a way to submit YUV directly from Mplayer to ADV7393 framebuffer?

jan petersen (BOUVET ISLAND)

Message: 69858   

 

Yes, thats where i stopped yesterday evening, to tell the mplayer not to scale and directly output yuv 

 

Maybe the urlyou posted can help me doing that.

 

 

 

thanks jan

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