[mythtv] XvMC - where'd it go?

[Brian Foddy]

On Monday 19 December 2005 06:18 am, Jesse Crews wrote:
> Quoting Brian Foddy <bfoddy at visi.com>:
> > On Sunday 18 December 2005 09:25 pm, Jesse Crews wrote:
> >> Quoting Brian Foddy <bfoddy at visi.com>:
> >> > On Sunday 18 December 2005 08:15 pm, you wrote:
> >> >> Quoting Brian Foddy <bfoddy at visi.com>:
> >> >> > Using a snapshot from today,
> >> >> > ./configure --arch=pentium3 --enable-proc-opt
> >> >> > --disable-joystick-menu --enable-dvb
> >> >> > --dvb-path=/usr/src/linux/include --enable-xvmc
> >> >> >
> >> >> > # Video Output Support
> >> >> > x11 support      yes
> >> >> > xrandr support   yes
> >> >> > xv support       yes
> >> >> > XvMC support     yes
> >> >> > XvMC VLD support yes
> >> >> > XvMC pro support no
> >> >> > XvMC libs        -lviaXvMC
> >> >> > OpenGL vsync     no
> >> >> > DirectFB         no
> >> >> >
> >> >> > # Misc Features
> >> >> > DVD playback     no
> >> >> > Frontend         yes
> >> >> > Backend          yes
> >> >> >
> >> >> >
> >> >> > The frontend was previously running .18.1, with XvMC enabled so
> >> >> > its in the database.  However its not playing with XvMC, and I
> >> >> > can't find any option in the setup to re-enable it.  No other
> >> >> > changes to the frontend machine.
> >> >>
> >> >> Did you look in setup/tv settings/playback? Preferred MPEG2 decoder
> >> >> should be Standard XvMC. This is svn rev 82something (too lazy to
> >> >> login and cal svn to find out what exactly).
> >> >
> >> > I was looking there, but found its a new control type I missed. 
> >> > However it still doesn't help.  I set either Standard XvMC or VIA XvMC
> >> > won't play using XvMC, there is an error message on the frontend
> >> > console: 2005-12-18 21:10:25.929 VideoOutputXv Error: Unable to create
> >> > XvMC Context, status(11): BadAlloc
> >>
> >> XVMC sources say there are not enough resources. Sounds like you have
> >> the incorrect driver loaded. The caller didn't get a pointer to the
> >> XvMC context :(.
> >> I'd start at the driver.
> >>
> >> > 2005-12-18 21:10:25.929 VideoOutputXv Error: Could not open XvMC
> >> > port...
> >>
> >> XvMC port does not exist because your video driver doesn't support it?
> >> Any linking errors with -lviaXvMC? Are you lding the correct driver for
> >> X?
> >>
> >>
> >> Does your X display log show XVideo-MotionCompensation extension is
> >> loaded?
> >>
> >>
> >> what's xdpyinfo say?
> >>
> >>
> >> Hope that gets you on track.
> >
> > I've got 2 machines that both had XvMC working on 0.18.1, and neither now
> > work.  Both Xorg logs include:
>
> See below; you need libxvmc for success. Make sure you configure mythtv
> to link against the right library archive (and drop any non-xorg, eg
> via xvmc stuff).
>
> > (II) Loading extension SHAPE
> > (II) Loading extension MIT-SUNDRY-NONSTANDARD
> > (II) Loading extension BIG-REQUESTS
> > (II) Loading extension SYNC
> > (II) Loading extension MIT-SCREEN-SAVER
> > (II) Loading extension XC-MISC
> > (II) Loading extension XFree86-VidModeExtension
> > (II) Loading extension XFree86-Misc
> > (II) Loading extension XFree86-DGA
> > (II) Loading extension DPMS
> > (II) Loading extension TOG-CUP
> > (II) Loading extension Extended-Visual-Information
> > (II) Loading extension XVideo
> > (II) Loading extension XVideo-MotionCompensation
> > (II) Loading extension X-Resource
> > (II) LoadModule: "glx"
> > (II) Loading /usr/X11R6/lib/modules/extensions/libglx.so
> >
> > and
> > xdpinfo shows
> > number of extensions:    31
> >    BIG-REQUESTS
> >    DAMAGE
> >    DOUBLE-BUFFER
> >    DPMS
> >    Extended-Visual-Information
> >    GLX
> >    LBX
> >    MIT-SCREEN-SAVER
> >    MIT-SHM
> >    MIT-SUNDRY-NONSTANDARD
> >    NV-CONTROL
> >    NV-GLX
> >    RANDR
> >    RENDER
> >    SECURITY
> >    SHAPE
> >    SYNC
> >    TOG-CUP
> >    X-Resource
> >    XC-APPGROUP
> >    XC-MISC
> >    XFIXES
> >    XFree86-Bigfont
> >    XFree86-DGA
> >    XFree86-Misc
> >    XFree86-VidModeExtension
> >    XInputExtension
> >    XKEYBOARD
> >    XTEST
> >    XVideo
> >    XVideo-MotionCompensation
> >
> > Both machines running Nvidia 7667 drivers, a 5900 and 5600 cards.
>
> ahh...
> I should have asked if you actually had a via chipset in there. Link
> against libXvMC, not viaXvMC. The via lib must have a different API
> that is incompatible with libXvMC 1.0 spec. Use Standard XVMC to
> playback.
> You'll need gentoo media-libs/libXvMC or debian xvmc-devel
>
> You can get the source from the xorg website (http://xorg.freedesktop.org).
>
>
> Jesse
>

Jesse, your losing me.  There are two XvMC 'like' options in configure, 
 --enable-xvmc            enable XvMC      (Linux/BSD MPEG accel.)
  --enable-xvmc-pro        enable XvMC for the unichrome pro 

I get that there are 2 XvMC libraries, and it appears that I'm linking in
BOTH, as a ldd mythfrontend shows
ldd mythfrontend |grep -i vmc
        libviaXvMC.so.1 => /usr/X11R6/lib/libviaXvMC.so.1 (0xb6e0d000)
        libXvMC.so.1 => /usr/X11R6/lib/libXvMC.so.1 (0xb6e09000)

My configure command simply had --enable-xvmc, no other
fancy stuff.  So where did I go wrong here?  It sounds like 
configure is missing some options to allow this fine of detail...

Brian