questions about vnc and audio and video
tfseak "at" futurmaster.com
Thu May 27 14:28:01 2004
As for most computing softwares or computer evolution, sound isn't the most significant part, except for games, of course. And VNC was created in the aim of remote maintenance and remote working, but certainly not remote multimedia pleasure!
But of course if you think audio is very important to you, you're welcome to contribute your code :-) But you have to think about how you're going to handle audio stream. If you're just passing CD quality audio stream, you could do a little calculation the minimum transfer rate you need:
44000Hz x 2 x 16bits = 1.3 Mbps
and don't forget to do this in sustain mode.
Of course, you could resample the sound or even compress it in mp3, but be aware of patent if you use mp3.
OTOH, the so-called video problem in VNC is that some software (codec) bypasses Windows API to write to video ram to get maximum speed. In this case, the video zone would be displayed as blank in VNC client. If you don't have this problem, so much the better for you. I think you could try to play a mpeg or divx file to see the problem if you really want to realise it.
> -----Message d'origine-----
> De : Me ...... [mailto:aneeda98 "at" hotmail.com]
> Envoyi : mardi 25 mai 2004 19:21
> @ : vnc-list "at" realvnc.com
> Objet : questions about vnc and audio and video
> Hi there....i have a couple of questions: firstly, what technical reasons
> are behind VNC not supporting audio (sound)?...and the second is does VNC
> support video?....because while im testing vnc on two windows machines and i
> played video on the server in a webcam and on the viewer i could see the
> video clearly so what are the problems VNC face with Video?....thaaaaaanks
> for any1s help.