Fix build with FFmpeg master. Some deprecated APIs have been removed. (#10011)

* Fix build with FFmpeg master.

* ffmpeg: update AVFMT_RAWPICTURE support removal

Incorrect type of negative_slope result in this bug.

Also and OCL test for darknet to validate this patch.
Signed-off-by: Wu Zhiwen <zhiwen.wu@intel.com>

Support @deprecated tag in java wrappers (#9698)

convolution kernel use default queue to run, so that ocl::Timer
, to measure the kernel run time, should use the default queue too.
Also remove useless parameter for convolve()
Signed-off-by: Wu Zhiwen <zhiwen.wu@intel.com>

Added Python setup docs for Ubuntu Machines (#10056)

When elements are 64 bits, the vec_st_interleave()/vec_ld_deinterleave()
doesn't interleave 4 elements correctly.

For vec_st_interleave(), following is saved into mem:
	a0 b0 a1 b1 c0 d0 c1 d1
     -> we expected:
	a0 b0 c0 d0 a1 b1 c1 d1

for vec_ld_deinterleave(), following is loaded into a b c d for memory
string { 1 2 3 4 5 6 7 8 }:
	a: 1 3
	b: 2 4
	c: 5 7
	d: 6 8
   -> we expected:
   	a: 1 5
	b: 2 6
	c: 3 7
	d: 4 8

This patch corrects this behavior.
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>

Allow to specify optimization level via CMake.

Add Android Mat constructor with support for native buffer (#10050)