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Nigel Dallard a écrit :
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<pre wrap="">Emmanuel BUU wrote :
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<pre wrap="">- the ability to have multi-way video conferences
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<pre wrap="">This is tricky. We use app_conference here but its only for
"switched" video conferences where people can see only one
video and select it with DTMFs. If you need video mixing in
H.264, you need to be aware that it is very demanding in
terms of CPU. Sergio has a videomixer but working in H.263 not
H.264.
We are testing the MCU from Orange Labs that has this and for
the moment, the results in H.264 are disapointing. There is a
great deal of tuning to be done before any solution would work
smoothly. Sergio mentionned (and I agree with him) that any
serious and scalable solution for H.264 video conferencing
should be based on dedicated hardware.
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I'm not looking for anything very sophisticated. Each participant only
needs to see video from one source at any one time, but that source
should ideally either be selected by the moderator of the conference, or
automatically depending on who is talking.
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Have a look at app_conference, this fits your need.<br>
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<pre wrap="">
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<pre wrap="">- the ability for callers to be connected to a menu-driven "video
on demand" system, with at least basic pause/play/fast-forward/
rewind control of the video playback
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<pre wrap="">That could be done with some coding.
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Hmm. This is not looking so good. Neither myself nor anyone else working
on this project has anything more than very basic programming skills.
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Yes but Sergio, authot of app_mp4 has some coding skills ... If there
is a budget for your project. You might ask him to improve app_mp4.<br>
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cite="mid:8185F3BF4B8F2A438367B1C3AE9FA25E06ACD2@adisrv01.ADI.local"
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<pre wrap="">
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<pre wrap="">The client devices use H.264 video encoding and G.711/Speex audio
coding.
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<pre wrap="">Which devices?
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A varient of <a class="moz-txt-link-freetext" href="http://www.redembedded.com/design/products/vptv400/">http://www.redembedded.com/design/products/vptv400/</a>
Cheers,
Nigel
---------------------------------------------
Nigel Dallard
Principal Technologist
Advanced Digital Institute
The Waterfront
Old Mill Lane
Saltaire
BD17 7EZ
United Kingdom
+44 (0) 1274 535 220 (office)
+44 (0) 7940 321 173 (mobile)
<a class="moz-txt-link-freetext" href="http://www.adi-uk.com">http://www.adi-uk.com</a>
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