Quoting Mike Pieper ([EMAIL PROTECTED]):
> Hi,
> 
> this patch (v4l_lockright.patch) has to be applied on my last patch 
> (v4lgrab.patch). It solves problems due to locking the destination surface of 
> the PlayTo function.
> All locking/unlocking is done in an extra function now. The unlocking at 
> various places in the code is avoided. The back _and_ the front buffer is 
> locked.

In grabbing mode the surface should only be locked while writing the data
into the back buffer (front buffer should not be locked). Otherwise a flip
on the surface would hang until the video is stopped.

In DMA mode the surface should not be locked but only have the lock
counter increased.

-- 
Best regards,
  Denis Oliver Kropp

.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/                 |
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