[linux-audio-dev] How to delay video?

[Nick Bailey]

Just at thought, but the best place to insert the delay would surely be 
the MPEG data stream. Unfortunately, I don't know of any DVD players 
which have MPEG out on the back, presumably because of the Movie maffia 
being afraid you can take stills of their beautiful art and make it into 
a lowly mouse mat or something. Since MPEG is ?about 2Mb/sec (just 
guessing), it should be quite easy to buffer a few seconds of it.

Incidentally, RGB would be better than the S-Video: the chrominance in 
S-Video is still band-limited and QAM, but separate from the luminance 
(hence the S) so that they don't interfere with eachother.

I will poke around some studio catalogues and email you personally if I 
find anything. It will give me something to do until Debian sid is less 
utterly broken :(( (can't even get ALSA working on it at the moment!)



Sreelal Chandrasenan wrote:

>hardware solution Prime Image video delay (both analog/digital) 
>www.primeimageinc.com
>-----Original Message-----
>From: Anders Torger [mailto:torger at ludd.luth.se]
>Sent: Thursday, March 06, 2003 9:33 AM
>To: linux-audio-dev at music.columbia.edu
>Subject: [linux-audio-dev] How to delay video?
>
>
>
>Not so much related to sound perhaps, but a bit. I'm trying to find a 
>solution to delay a video signal.
>
>The idea is to be able to synchronise video with advanced surround sound 
>processing which runs in my convolution engine (BruteFIR) and has 100 - 
>400 ms I/O-delay (depending on configuration).
>
>Any suggestion of hardware or software solution or both is ok, apart 
>from using a very very long cable, I have already thought of that one 
>:-). Since this concerns high-end reproduction on the sound part, it 
>would be good if the resulting video quality is good too.
>
>The source would be a DVD-player (stand alone product) of some sort. 
>S-video output or RGB or whatever the best is...
>
>/Anders Torger
>  
>

-- 
Dr Nick Bailey                              n.j.bailey at elec.gla.ac.uk
Centre for Music Technology                 http://cmt.gla.ac.uk/
Dept of Electronics and Electrical Eng      http://www.elec.gla.ac.uk/
The University of Glasgow                   http://www.gla.ac.uk

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