On 03.08.2016 11:24, Marek Szyprowski wrote:
Hi,
I'm working now on something similar, but more generic. There is already a framework for picture processing (converting, scaling, blitting, rotating) in Exynos DRM.
In DRM, not v4l ? Hmm, interesting.
On mx5/mx6 we've got an IPU, which is accessible via v4l, eg.for colorspace conversion, jpeg encode/decode, rotation, etc. (anyone of the involved folks @ptx here on the list ?)
Yet another overlap between DRM and V4L (IMHO, seems to be a matter of perspective of perspective and usecases, where to put such stuff in)
By the way: what's the status of sharing buffers between DRM and V4L ? I could also live with having such an hw-based image-copy operation living within v4l, when they're operating on the the same buffers.
http://thread.gmane.org/gmane.linux.kernel.samsung-soc/49743
seems to be offline
I plan to propose an API based on DRM object/properties, which will be similar to KMS atomic API. I will let you know when I have it ready for presenting in public.
hmm, I'm getting curious ...
--mtx