Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Ting Fu <ting.fu@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

You can reproduce it by below command:
./ffmpeg -f lavfi -i "testsrc=duration=1:rate=30" -vf format=gbrap10 -vcodec rawvideo \
    -pix_fmt gbrap10le -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact  \
    -frames:v 1 -f nut md5:

little-endian:
f91e2edd8098276579c1929e5e160416
big-endian:
ba4d011dbbdc78ccbf6cc7d698630929
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The implementation is pretty straight-forward. Most of the existing
NV12 codepaths work regardless of subsampling and are re-used as is.
Where necessary I wrote the slightly different NV24 versions.

Finally, the one thing that confused me for a long time was the
asm specific x86 path that did an explicit exclusion check for NV12.
I replaced that with a semi-planar check and also updated the
equivalent PPC code, which Lauri kindly checked.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

swscale/swscale_unscaled: fixed the issue that when width/height is not 2-multiple, transition of nv12 to u/v planes is not completed.
Signed-off-by: Dong, Jerry <jerry.dong@intel.com>
Signed-off-by: Decai Lin <decai.lin@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Based on ab839054 by Luca Barbato.
Signed-off-by: James Almer <jamrial@gmail.com>

is used for packed and planar format

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This cleans up the ever-more-unreadable list of semi-planar
exclusions for selecting the planar copy wrapper.

To make the best use of existing code, I generalised the wrapper
that currently does yuv420p10 to p010 to support any mixture of
input and output sizes between 10 and 16 bits. This had the side
effect of yielding a working code path for all yuv420p1x formats
to p01x.

This patch uses dithering in DITHER_COPY macro only if
it was not used option '-sws_dither none'.
With option '-sws_dither none' it uses downshift.

For human eye dithering is OK, for video codecs not necessarily.
If user don't want to use dithering, we should respect that.
Signed-off-by: Mateusz Brzostek <mateuszb@poczta.onet.pl>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Based on b4befca2 and 6b7849e6 by Paul B Mahol.

Fixes ticket #6608.

Avoid warnings about types mismatch and make the code a little simpler.

Based on 19be5fb7 by Luca Barbato.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

It is used to select functions that work with 9-15bits.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Libav, for some reason, merged this as a public API function. This will
aid in future merges.

A define is left for backwards compat, just in case some person
used it, since it is in a public header.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>