Commit Graph

5 Commits

Author SHA1 Message Date
Vincent Rabaud
ac17ffffcb Fix non-C90 code.
Thank you OpenCV: https://github.com/opencv/opencv/blob/
1e54e5657927996e86b155d89f51c7b5a73461d2/3rdparty/libwebp/
CMakeLists.txt#L24

Change-Id: Ic79f6309951f96c380e44b3167c1a36aae6d8903
2023-09-14 22:43:45 +02:00
James Zern
0c496a4ff9 cpu.h: add WEBP_AARCH64
and define it to true for __aarch64__ and Win Arm64 + Visual Studio.

Microsoft's compiler (cl.exe) does not define __aarch64__, but relies on
_M_ARM64 & _M_ARM64EC

Bug: b/277254922
Change-Id: I20e4fa07a4031599db69e3d7ba9050345315ef51
2023-05-02 12:28:50 -07:00
James Zern
e68765af42 dsp,neon: use vaddv in a few more places
SumToInt_NEON
horizontal_add_uint32x4

Change-Id: I881831a7b2bab35a1810b0d83fee761470f3e09f
2022-09-12 10:55:58 -07:00
Pascal Massimino
9d6988f44d Fix the oscillating prediction problem at low quality
For some exact resonance the over-quantization was exactly
compensating the under-quantization, leading to resonance
and strange patterns.

-> we special-handle the very flat blocks, hopefully for the
greater good (and not just the bad-resonance case).

For 'fast mode' (-m 3 or less), we just pay special attention
to the border of the image, where the oscillation / instability
usually starts. For the inner part of the image, since we're not
doing rd-opt, it's harder to fix anything.

Overall, on 'regular' images, the change is written the noise,
often leading to overall faster encoding (because of the short-cut).

BUG=webp:432

Change-Id: Ifaa8286499add80fd77daecf8e347abbff7c3a15
2019-07-03 08:40:41 -07:00
Johann
5173d4ee6f neon IsFlat
Move IsFlat to its own header. This allows it to continue to be
inlined. Using the RTCD and creating a distinct function slows down arm
builds.

   flower   mug
C    3.59  2.12
NEON 3.47  2.01

BUG=b/118740850

Change-Id: Id77e8f76d9e9790c498806e7070bbe37c10bc2e9
2018-12-03 22:59:12 +00:00