c76abab59b
For multi-planar formats, while calculating offsets in planes with index greater than 0 (ie second plane, third plane, etc), one needs to divide (src_x * cpp) with horizontal chroma subsampling factor and (src_y * pitch) with vertical chroma subsampling factor. The reason being that the planes contain subsampled (ie reduced) data (by a factor of 2) and thus while calculating the byte position coresponding to the x and y co-ordinates, one needs to divide it with the sampling factor. Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.kernel.org/patch/10569263/
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.