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View Full Version : Video Scalability over heterogeneous networks


Klappstuhl
23rd November 2006, 13:21
Hi Folks,

I'm new to Video-Editing and De-/Encoding, so I have to ask you some questions.
According to a project at the university we have to adapt a video-stream to different bandwiths. This means, we do have any kind of video data (not defined yet) and, let's say 3, different networks, for example W-LAN, Bluetooth and GPRS. Our Decoder has to adapt the resolution, quality and frame rate of the video data.

First we have chosen x264, but then we found out that there is no real scalability-funtion in that codec.

Can anyone help us getting started with this? What codec is the one to use?

CruNcher
23rd November 2006, 16:02
Welcome to Doom9,
This is better for your purposes http://www.chiariglione.org/mpeg/technologies/mp04-svc/
also Mpeg-21 SVC

Klappstuhl
23rd November 2006, 17:50
Thank you for answering, but we've already written with one of the SVC-Group. This meets our demands very well but it will not be done before Summer 07 :(

Klappstuhl
24th November 2006, 14:10
Well, let's change the question:
Has anyone of you already worked with videos supporting different qualities, having a base layer and then adding enhancement layers?