[MPlayer-dev-eng] dvdnav second installment, help needed

[Ivan Kalvatchev]

--- Arpi <arpi at thot.banki.hu> wrote:
> Hi,
> 
> > As you can see in stream.c dvd menus support something called still pictures. 
> > This is used commonly in menus to provide a still background. A still picture 
> > is basically preceeded by an mpeg ps stream which contains a video packet 
> > with the picture incoded as intra (I assume ;). This is where I need help, 
> > when the demuxer get's a still picture it currently freaks out since it's 
> > preceeded only by audio. The demuxer kills mplayer telling me there are too 
> > many audio packets in the buffer. I understand why this happens but I've been 
> > unable to make a clean implementation to solve this.
> 
> clean...
> 
> do you know a clean way to detect still pictures? i mean, there is info
> about them in IFO file, or PS/ES header etc ?
> xine guys are working on this issue for months, with no full success yet.
> from their mailing it seems to no clean way, just some heuristics. but i
> don't like to introduce such thing ni mplayer. they play with PTS and DTS
> differences,. but it's too messy, and sometimes break non-dvd content.
> 
> second prob: most mplayer libvo drivers use double buffering.
> so decoded still pic in decoder buffer won't be displayed until next picture
> is decoded... it can be solved only with big mess, or ... libvo2.
> 
> > So could someone help me out and have a look at the demuxer to allow it to 
> > receive only audio (and only video since this is also allowed by the 
> audio only not supported by mplayer core.
> maybe, a possible ugly mess is repeating video frame...
> 
> 
> A'rpi / Astral & ESP-team
What's going on,there does thay came from? Could you add more details?

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