[MPlayer-users] video does not scale to fullscreen with -vo xv

[Reimar Döffinger]

On Sun, Mar 06, 2016 at 12:59:56PM +0100, Tamas Papp wrote:
> On Sun, Mar 06 2016, Reimar Döffinger wrote:
> 
> >> 		  Failed to open VDPAU backend libvdpau_va_gl.so: cannot open shared object file: No such file or directory
> >
> > Note that installing that could be worth a try to see if at least VDPAU
> > works. It is not the cause of your issues, just a potentially
> > nice work-around.
> 
> Thanks -- indeed it works fine after installing the library.
> 
> > It can't be seen from the log, but probably the non-functional
> > scaling is a bug (or missing feature) of that driver, too.
> > (I would consider it a bug, as there's no sane reason to implement
> > and advertise XVideo at all if it can't even do scaling)
> > Note: xvinfo (a small tool to list information about the
> > XVideo implementation) might give some useful information, too.
> 
> Here is the output:
> 
> X-Video Extension version 2.2
> screen #0
>   Adaptor #0: "Intel(R) Video Sprite"
>     number of ports: 1
>     port base: 75
>     operations supported: PutImage 
>     supported visuals:
>       depth 24, visualID 0x20
>     number of attributes: 2
>       "XV_COLORKEY" (range 0 to 16777215)
>               client settable attribute
>               client gettable attribute (current value is 66046)
>       "XV_ALWAYS_ON_TOP" (range 0 to 1)
>               client settable attribute
>               client gettable attribute (current value is 0)
>     maximum XvImage size: 8192 x 8192
>     Number of image formats: 3
>       id: 0x32595559 (YUY2)
>         guid: 59555932-0000-0010-8000-00aa00389b71
>         bits per pixel: 16
>         number of planes: 1
>         type: YUV (packed)
>       id: 0x59565955 (UYVY)
>         guid: 55595659-0000-0010-8000-00aa00389b71
>         bits per pixel: 16
>         number of planes: 1
>         type: YUV (packed)
>       id: 0x18424752
>         guid: 50415353-5448-524f-5547-485247423234
>         bits per pixel: 32
>         number of planes: 1
>         type: RGB (packed)
>         depth: 24
>         red, green, blue masks: 0xff0000, 0xff00, 0xff

That looks looks extremely barren.
No YV12 support, no selection of colourspace
conversion (BT.709 or not), no vsync control,
no contrast, brightness, saturation, hue controls,
unusually low maximum resolution (though that
might be normal for integrated graphics).
Looks fairly broken to me, though maybe they
just don't care about XVideo anymore.