Hi, Sakari, > -----Original Message----- > From: linux-media-owner@xxxxxxxxxxxxxxx [mailto:linux-media- > owner@xxxxxxxxxxxxxxx] On Behalf Of Sakari Ailus > Sent: Friday, October 20, 2017 2:10 AM > To: Zhi, Yong <yong.zhi@xxxxxxxxx> > Cc: linux-media@xxxxxxxxxxxxxxx; sakari.ailus@xxxxxxxxxxxxxxx; Zheng, Jian > Xu <jian.xu.zheng@xxxxxxxxx>; Mani, Rajmohan > <rajmohan.mani@xxxxxxxxx>; Toivonen, Tuukka > <tuukka.toivonen@xxxxxxxxx>; Hu, Jerry W <jerry.w.hu@xxxxxxxxx>; > arnd@xxxxxxxx; hch@xxxxxx; robin.murphy@xxxxxxx; iommu@lists.linux- > foundation.org > Subject: Re: [PATCH v4 00/12] Intel IPU3 ImgU patchset > > Hi Yong, > > On Tue, Oct 17, 2017 at 10:46:48PM -0500, Yong Zhi wrote: > > This patchset adds support for the Intel IPU3 (Image Processing Unit) > > ImgU which is essentially a modern memory-to-memory ISP. It implements > > raw Bayer to YUV image format conversion as well as a large number of > > other pixel processing algorithms for improving the image quality. > > > > Meta data formats are defined for image statistics (3A, i.e. automatic > > white balance, exposure and focus, histogram and local area contrast > > enhancement) as well as for the pixel processing algorithm parameters. > > The documentation for these formats is currently not included in the > > patchset but will be added in a future version of this set. > > > > The algorithm parameters need to be considered specific to a given > > frame and typically a large number of these parameters change on frame > > to frame basis. Additionally, the parameters are highly structured > > (and not a flat space of independent configuration primitives). They > > also reflect the data structures used by the firmware and the > > hardware. On top of that, the algorithms require highly specialized > > user space to make meaningful use of them. For these reasons it has > > been chosen video buffers to pass > > Do you have a to-do list for this patchset? I think it would be useful to > maintain one, in case not all the comments have been addressed. > Sure, will add in next update. > -- > Sakari Ailus > e-mail: sakari.ailus@xxxxxx
