[MPlayer-dev-eng] what happened to the blu-ray support

[Reimar Döffinger]

On Sat, Jul 03, 2010 at 02:17:50AM +0200, Alexander Roalter wrote:
> On 07/03/2010 01:51 AM, Reimar Döffinger wrote:
> > Ok, since your appreciation for that kind of thing is so high,
> > here is a "working" patch for PGS.
> > Now find someone to clean it up properly, after all I have done the
> > "useful feature" part.
> > (No, this is not even very, very remotely ok for SVN, as anyone trying
> > to use it will probably notice before the end of the movie, among
> > more "philosophical" things).
> > And yes, it also needs -demuxer lavf.
> 
> It actually works, I never saw blu-ray subtitles before, and they appear
> to have alpha blending and anti aliasing... at least the look a lot
> better than normal DVD subtitles.

DVDs have too, but they can only use 4 different colours (where colour
includes alpha) at the same time.
pgs can use up to 256.

> There is though some graphical debris at the right end of almost each
> subtitle line, but I cannot make out a clear pattern there.

Well, I have only one sample and couldn't see such a thing.
Does it happen for you with http://samples.mplayerhq.hu/sub/BluRay/sample-dts-not-valid-dca-frame.m2ts ?
If yes, you are using the internal FFmpeg?
If no, can you upload a sample?

> with lavf as demuxer, I get also uncompressed PCM sound, which is nice,
> and the default demuxer doesn't show, but mplayer breaks on seeking with
> lavf, if I do the seeking from start on. When I go somewhere into the
> movie,  seeking works, though (haven't investigated a lot in this
> matter) it doesn't seem to seek to keyframes. so it takes ~1sec for the
> image to clear.
> 
> so this is more about lavf as demuxer:
> 
> playing the bd from start and then seeking with arrow keys: I get:
> 
> VO: [xv] 1920x1080 => 1920x1080 Planar YV12
> A:  12.9 V:   0.0 A-V: 12.931 ct:  0.100   0/  0 ??% ??% ??,?% 0 0
> 
> Exiting... (End of file)
> 
> playing with -ss 0:0 I get the same
> playing with -ss 0:1, I can seek as I'm happy to...
> 
> Return value is in all cases 0, even gdb gives: "Program exited normally".

Hm, also not able to reproduce that with my sample.
But I fear MPEG-TS support is rather crappy, and lavf is possibly even worse
than the native one...