[mythtv] TV-out, interlacing & XvMC

Isaac Richards ijr at po.cwru.edu
Wed Sep 29 15:54:01 EDT 2004


On Wednesday 29 September 2004 03:00 pm, Robert Clark wrote:
>   I have a PAL recording from DVB (720x576, 50Hz interlaced, 16:9) which
> I'm playing back via the new Unichrome XvMC VLD driver to my TV. I have
> everything set up to avoid deinterlacing but something in MythTV appears
> to be breaking interlacing.
>
>   I can play back the same nuv file through MPlayer with the Unichrome
> patch and interlacing is definitely working. For example: if I pause
> playback during fast motion the paused image flickers noticeably.
> Pausing MythTV during fast motion gives a static image with no
> flickering. I thought this might be some cleverness with MythTV
> deinterlacing paused images so I tried a "killall -STOP mythfrontend" as
> well with the same result.
>
>   I've tried the obvious thing and changed videoout_xvmc.cpp to always
> pass XVMC_FRAME_PICTURE to XvMCPutSurface but it doesn't seem to make a
> difference.

If you're forcing that, then there's no deinterlacing going on.

Isaac


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