y_offset and y_coeff being successive 32-bit integers, they are packed
into 8 bytes instead of 2x8 bytes.

See https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARM64FunctionCallingConventions.html

> iOS diverges from Procedure Call Standard for the ARM 64-bit
> Architecture in several ways
[...]
> In the generic procedure call standard, all function arguments passed
> on the stack consume slots in multiples of 8 bytes. In iOS, this
> requirement is dropped, and values consume only the space required.
[...]
> Padding is still inserted on the stack to satisfy arguments’ alignment
> requirements.

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

Fix final scaling and required filter alignment. Pass FATE.

They were derived from incorrect values cr=0.2125 (should be cr=0.2126)
and cb=0.0721 (should be cb=0.0722).

Looks broken.

Removed previous swscale code under '#ifndef NEW_FILTER'
and removed unused fields of SwsContext

There are no known users of these functions within debian
It should be thus possible to remove these functions without recommandition of a
replacement

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

./ffmpeg -nostats -f lavfi -i testsrc2=4k:d=2 -vf bench=start,scale=1024x1024,bench=stop -f null -

    before: t:0.489726 avg:0.489883 max:0.491852 min:0.489482
    after:  t:0.256515 avg:0.256458 max:0.256999 min:0.253755

Signed-off-by: Lou Logan <lou@lrcd.com>

27ms to 26ms with UHD 2160 input.

It makes easier looking at the difference with the generic code just
below.

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

Fixes part of Ticket5264

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

Fixes part of Ticket5264

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

Commit '842b8f4ba2e79b9c004a67f6fdb3d5c5d05805d3' fixed clang/iphone
build but failed on some versions of cygwin. It has now been verified
to work on both platforms.

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

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

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

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This makes sure that white stays white and black black

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

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>

Based on the original documentation found in mpeg2dec (1995).

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Based on the original documentation found in mpeg2dec (1995).

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

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

Fixes: 451b3e0cf956c0bd2f27ed753ac24050/asan_heap-oob_2873c01_3231_7ed10a9464d15f0d57277f5917c566a8.AVI

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: 372d2df1f04b49e25f109f07f90b1505/asan_heap-oob_2835d2e_8501_99e0114d7ba3a6db885d0b4684d200c1.cine
Fixes out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: 372d2df1f04b49e25f109f07f90b1505/asan_heap-oob_2835d2e_8501_99e0114d7ba3a6db885d0b4684d200c1.cine
Fixes out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

No case known where that makes a difference

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

Fixes: out of array reads
Fixes: 07e8b9c5d348ccdf7add0f37de20cf6c/asan_heap-oob_27e8df7_6849_e56653f768070ec8cb52f587048444c2.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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