- From: Dominique Hazael-Massieux <dom@w3.org>
- Date: Wed, 15 Apr 2015 10:43:10 +0200
- To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>, Harald Alvestrand <harald@alvestrand.no>
- CC: public-media-capture@w3.org
On 13/04/2015 22:44, Silvia Pfeiffer wrote: > > Video filters are being written using the canvas api these days. You > capture frames into the canvas and then can do whatever you like with > the pixels. This can also be done with live video. Is that not > sufficient? What is the use case? As far as I know, using canvas for video manipulation is OK when the said manipulation is achievable on the CPU, but a lot of manipulation can only be reasonably achieved with the help of the GPU. As graphic cards bring a lot of hardware-baked video manipulation features, a Web API that would enable to use these on video streams would be useful. WebCL is a contender in this space, but I don't think it has gained much traction so far: https://www.khronos.org/webcl/ Dom
Received on Wednesday, 15 April 2015 08:43:27 UTC