[MPlayer-dev-eng] [PATCH] dvdnav

[Rich Felker]

On Mon, Feb 06, 2006 at 02:27:08AM -0500, The Wanderer wrote:
> Rich Felker wrote:
> 
> >On Mon, Feb 06, 2006 at 04:09:53AM +0100, Diego Biurrun wrote:
> >
> >>On Sun, Feb 05, 2006 at 09:41:42PM -0500, Rich Felker wrote:
> 
> >>>Are you using -fixed-vo? In any case it sounds like this is the
> >>>problem: reinitializing the vo again and again. We need to do
> >>>something so the config request gets blocked if the new mode is
> >>>the same as the old one.
> >>
> >>No, I don't use -fixed-vo.
> >
> >Try it and see if the problem goes away. BTW -fixed-vo is recommended
> >to always be used unless you're using a broken old vo driver that
> >crashes with it.
> 
> To always be used with everything, or just with streams which are
> supposed to be multiple segments of the same thing? (Also, where is this
> recommended? I don't see any such note in the docs, and in fact
> -fixed-vo is described as beta code in the man page.)

Always with everything. It prevents annoying things like flicker
between multiple files, window being destroyed and recreated, etc.

> I have groups of files - music videos and the like - which I like to
> play back in semi-random order, and if I use -fixed-vo then very
> frequently when going from one file to another I will either see only
> part of the image (if the new file had a larger resolution), or see a
> bright blue background around the video (if the new file had a smaller
> resolution). Nothing I've done has been able to track down where the
> blue is coming from, and I've mostly just decided that it's an inherent
> side effect of using a "fixed" (i.e. invariant) video-out method;
> -fixed-vo does not appear to be compatible with playing multiple
> consecutive files with different resolutions.

It's supposed to be. If it's not then this is a bug, and hopefully the
co maintainer will fix it if you report it. :)

> (For the record, in case anyone cares enough for it to matter, the
> relevant line from my config file is 'vo=xv,sdl,'. I believe I've
> received the impression that xv is the recommended video-out method...)

Yes, when mga/vidix isn't available xv is recommended. xv may in some
rare cases be even faster if dma is available.

Rich