has anyone done any work with reading and writing video using cuda? it seems like it would be something that could be done efficiently with the GPU, but i couldn’t find anything when i looked.
thanks,
dave
If you mean performing DMA transfers directly from a video capture card to the GPU, this has been requested, but that’s about it. Currently you have to ping-pong frames from a capture card to the GPU through a buffer in system memory.
Or do you mean encoding/decoding video into compressed formats?
I am curious about DMA, but also about writing video. Currently, I am transferring arrays of pixel values to Matlab in order to write to avi. Are there any CUDA or other GPU libraries for video writing.
Commercial h.264 encoder:
[url=“http://www.elementaltechnologies.com/news.php?id=9”]http://www.elementaltechnologies.com/news.php?id=9[/url]
Open-source Dirac encoder:
[url=“http://www.cs.rug.nl/~wladimir/sc-cuda/”]http://www.cs.rug.nl/~wladimir/sc-cuda/[/url]
Dirac is some crazy Wavelet scheme by the British Broadcasting Corporation. One of the nice regulars of the forum did the CUDA implementation I think.