On Sun, 3 Feb 2013 21:27:06 +0100 Sebastian Ramacher wrote: > On 2013-02-03 18:38:17, Francesco Poli wrote: > > I tried to test all the available options for the video output in > > gnome-mplayer (with mplayer) and found the following awkward results. > > > > > > Leaving the setting blank seems to automatically select xv, according > > to the verbose output: > > GMLIB-Message: VO: [xv] 400x304 => 400x304 Planar YV12 > > but screenshots do not work: > > GMLIB-Message: sending VFCTRL_SCREENSHOT! > > GMLIB-Message: failed (forgot -vf screenshot?) > > If the setting is blank, the default output is used. Since you have > manually set it to xv in your mplayer config, it's using xv here.
OK, but why did gnome-mplayer fail to pass the correct flags to enable screenshots in mplayer? By looking at the mplayer man page, I seem to understand that the correct flag is just: -vf screenshot Indeed, if I modify my ~/.mplayer/config so that $ cat ~/.mplayer/config [default] ao=jack,alsa volume=20 vo=xv vf=screenshot and I leave the video output option blank for gnome-mplayer, then the xv VO seems to be correctly selected and taking screenshots seems to work fine (apart from the annoying double-screenshot issue with mplayer2). > > > Explicitly selecting xv works: > > GMLIB-Message: VO: [xv] 400x304 => 400x304 Planar YV12 > > and screenshots may be taken: > > GMLIB-Message: sending VFCTRL_SCREENSHOT! > > GMLIB-Message: *** screenshot 'shot0001.png' *** > > So in this case gnome-mplayer launched mplayer with the correct flags to > take screenshots since it knew that xv is used. If the correct flags are just "-vf screenshot", then I cannot see why it has to know which video output is being used... > > > Selecting gl works: > > GMLIB-Message: VO: [gl] 400x304 => 400x304 Planar YV12 > > and screenshots may be taken: > > GMLIB-Message: sending VFCTRL_SCREENSHOT! > > GMLIB-Message: *** screenshot 'shot0002.png' *** > > [...] > > Selecting vdpau seems to lead to gl being used: > > GMLIB-Message: VO: [gl] 400x304 => 400x304 Planar YV12 > > That's expected if your hardware doesn't support vdpau or you're missing > the necessary libraries to actually use vdpau. > > > but screenshots do not work: > > GMLIB-Message: sending VFCTRL_SCREENSHOT! > > GMLIB-Message: failed (forgot -vf screenshot?) > > I guess this is one of the vos upstream mentioned, that don't support > screenshots. This does not seem to be the case: when I explicitly ask for gl, I am able to take screenshots (without the vf=screenshot setting in ~/.mplayer/config). > > > Selecting xvmc or vaapi fails to work (high CPU load, endless stream > > of error messages and no visible video...). > > If the issues are reproducable with mplayer alone, I'd report bugs > against those packages. Maybe you're just missing the proper hardware > support. [...] Maybe later, I am already accumulating too many bugs to investigate... :-| -- http://www.inventati.org/frx/frx-gpg-key-transition-2010.txt New GnuPG key, see the transition document! ..................................................... Francesco Poli . GnuPG key fpr == CA01 1147 9CD2 EFDF FB82 3925 3E1C 27E1 1F69 BFFE
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