AW: BSD video capture emulation question

Alexander Leidinger Alexander at Leidinger.net
Mon Jul 14 05:07:35 PDT 2003


On Mon, 14 Jul 2003 08:23:55 +0200
"Cornelius, Peter" <peter.cornelius at comsoft.de> wrote:

> > Some of the newer Windows apps lets you do similar things with audio
> > and video stream processing.  I haven't used it, but there is an app
> > that lets you plum things together.  So say you have a VOB (mpeg-2)
> > video stream, and that will export the MPEG-2 video data, and the
> > subtitls and the audio.  Then you can pass the audio (AC3) data to
> > either your sound card (assuming digital out) or to a software AC3
> > decoder, and you can do similar things with video.
> 
> In particular, video and audio running out of sync seems to be a royal
> pita under Windoze. I have not had the time yet to 'really' fiddle
> with my dv cam and do much cutting but I can recall my dad complaining
> very much so about various shortcomings of xp windoze. Which I could
> neither locate nor fix at that time.
> 
> But I'll try to stop picking on systems I don't understand; all I want
> to say is that not all that shines is made of gold, and so is windows.
> With protocols, you may build a large pipe of 'converters' since the
> protocols are designed to sort it out by themselves. I'm not sure
> whether that's true for a/v data (*). 

I think the synchronization should be part of the application (e.g.
gstreamer or NMM), but the API to the device should offer device
specific synchronization primitives... if the device has some.

Bye,
Alexander.

-- 
                   It's not a bug, it's tradition!

http://www.Leidinger.net                       Alexander @ Leidinger.net
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