2014-12-15 19:52 GMT+01:00 Nicolas Dufresne <[email protected]>: > > > Le 12/15/2014 01:23 PM, Steve Longerbeam a écrit : >> You would need to write a gstreamer plugin to make use of the >> mem2mem device for h/w CSC and scaling.
Thank you Steve, this is of a great help ! > There is an element already (v4l2transform), though it currently only > handle color conversion. I'd like to see scaling in that too instead of > having a separate element that only do scaling like: > > https://bugzilla.gnome.org/show_bug.cgi?id=726104 Nice idea. You are probably right Nicolas, it would make sense to be able to scale and convert color in the same element. > I think Michael and Philipp idea was that scaling could be done directly > out of the decoder, something supported by CODA driver. There is some > work require to get that in GStreamer, see: > > https://bugzilla.gnome.org/show_bug.cgi?id=733827 (pixel format nego) > https://bugzilla.gnome.org/show_bug.cgi?id=733828 (display size nego) There is a need for a separate element too. So it could be handled in front of the encoder if needed, on decoder output if needed, but should be a single element too, instanciable multiple times if multiple inputs/outputs are needed. JM -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
