[MPlayer-users] TV-in on the Radeon 7500 QW

[D Richard Felker III]

On Sun, Apr 27, 2003 at 12:18:16AM -0400, Jim Russell wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On or about Sat, Apr 26, 2003 at 02:04:42PM -0400, Brian T Neltner wrote:
> >  Capabilites: capture
> >  Device type: 1
> >  Supported sizes: 640x239 => 640x239
> >  Inputs: 1
> > ioctl get channel failed: Invalid argument
> > ioctl get mbuf failed: Invalid argument
> > Falling back on trying to parse playlist TV...
> > ============ Sorry, this file format is not recognized/supported
> > =============
> > === If this file is an AVI, ASF or MPEG stream, please contact the author!
> > ===
> 
> It looks to me like mplayer makes the same assumption that most software 
> that tries to add v4l support makes.  The assumption made is that all 
> v4l devices will support reading via 'mmap'.  The GATOS km does not, 
> it requires reading via an 'open' call.

IMO, if the driver doesn't support mmap, it's broken. Copying the
whole framebuffer to a userspace buffer with read() then copying it
again to display it is ridiculously slow.

Rich