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Re: [MPlayer-dev-eng] mplayer 1.4.0 release




Hi!

On 2019-04-09 22:55 +0200, Erik Auerswald wrote:
> On Tue, Apr 09, 2019 at 01:03:20AM +0200, Alexander Strasser wrote:
> > On 2019-04-06 23:28 +0200, Erik Auerswald wrote:
[...]
> > >
> > > More data points:
> > >
> > > - Fullscreen black borders work with current SVN without an external
> > >   monitor connected (Ubuntu 18.04).
> > >
> > > - Maximising the video image results in wrong image content instead
> > >   of black bars with current SVN (all tested systems and
> > >   configurations).
> >
> > It's a regression since r33522 (May 2011)
> >
> > I suspect a debugging modification sneaked in. If I make the
> > following change, borders look fine again:
> >
> > --- a/libvo/vo_xv.c
> > +++ b/libvo/vo_xv.c
> > @@ -139,7 +139,7 @@ static void deallocate_xvimage(int foo);
> >  static void resize(void)
> >  {
> >      calc_src_dst_rects(image_width, image_height, &src_rect, &dst_rect, NULL, NULL);
> > -//    vo_x11_clearwindow_part(mDisplay, vo_window, dst_rect.width, dst_rect.height, vo_fs);
> > +    vo_x11_clearwindow_part(mDisplay, vo_window, dst_rect.width, dst_rect.height, vo_fs);
> >      vo_xv_draw_colorkey(dst_rect.left, dst_rect.top, dst_rect.width, dst_rect.height);
> >  }
>
> I have just tested this,

  Thanks for testing!


> it does improve the situation, but it is not
> yet completely correct.

  What do you mean by "not yet completely correct"?


> The problem occurs only when the window aspect does not match the movie
> aspect (otherwise no black bars would be needed).
>
> The problem seems to primarily occur when the MPlayer window aspect
> changes. For example, one video with the same vertical resolution as my
> screen (1080 on the build-in laptop screen of the Ubuntu 18.04 machine)
> will show wrong image content on the sides in window mode. I think
> MPlayer will try to open a window with vertical size 1080, which is
> prevented by Gnome. The result is a window of the original horizontal
> size, but reduced vertical size, needing black bars on the right and
> left sides. Those are not drawn. Using -vo gl or -vo gl2 works fine,
> i.e. the needed black borders are drawn.
>
> MPlayer prints:
>
>     Movie-Aspect is 1.34:1 - prescaling to correct movie aspect.
>     VO: [xv] 1444x1080 => 1444x1080 Planar YV12
>
> The window geometry is:
>
>     xwininfo: Window id: 0x2e00001 "MPlayer"
>     [...]
>     -geometry 1444x1023+103-0
>
> This happens easily while resizing for example on Ubuntu 14.04 with
> Unity, which allows arbitrary window aspects when manually resizing. It
> happens on both Ubuntu 14.04 with Unity and Ubuntu 18.04 with Gnome when
> maximizing a window, because the top bar and the panel on the side of
> the desktop result in window aspect ratio changes in regard to fullscreen
> or initial window aspect ratios.
>
> Another info point: the commented out call to vo_x11_clearwindow_part()
> in libvo/vo_xv.c is present in the Ubuntu 18.04 version of MPlayer 1.3.0,
> but that version does not exhibit said problems. (I have checked the
> .orig.tar.xz and the patches applied during the build process, but have
> not build the package from its sources.) This seems to be something else.

  Seems like a (partially) different problem then. Unfortunately I
can't invest more time into this. So if no one else finds out before,
it will not be fixed in the release.


  Alexander
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