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Frank Barchard 1c501a8f3f CpuId test FSMR - Fast Short Rep Movsb 
- Renumber cpuid bits to use low byte to ID the type of CPU and upper 24 bits for features

Intel CPUs starting at Icelake support FSMR
adl:Has FSMR 0x8000
arl:Has FSMR 0x0
bdw:Has FSMR 0x0
clx:Has FSMR 0x0
cnl:Has FSMR 0x0
cpx:Has FSMR 0x0
emr:Has FSMR 0x8000
glm:Has FSMR 0x0
glp:Has FSMR 0x0
gnr:Has FSMR 0x8000
gnr256:Has FSMR 0x8000
hsw:Has FSMR 0x0
icl:Has FSMR 0x8000
icx:Has FSMR 0x8000
ivb:Has FSMR 0x0
knl:Has FSMR 0x0
knm:Has FSMR 0x0
lnl:Has FSMR 0x8000
mrm:Has FSMR 0x0
mtl:Has FSMR 0x8000
nhm:Has FSMR 0x0
pnr:Has FSMR 0x0
rpl:Has FSMR 0x8000
skl:Has FSMR 0x0
skx:Has FSMR 0x0
slm:Has FSMR 0x0
slt:Has FSMR 0x0
snb:Has FSMR 0x0
snr:Has FSMR 0x0
spr:Has FSMR 0x8000
srf:Has FSMR 0x0
tgl:Has FSMR 0x8000
tnt:Has FSMR 0x0
wsm:Has FSMR 0x0

Intel CPUs starting at Ivybridge support ERMS

adl:Has ERMS 0x4000
arl:Has ERMS 0x4000
bdw:Has ERMS 0x4000
clx:Has ERMS 0x4000
cnl:Has ERMS 0x4000
cpx:Has ERMS 0x4000
emr:Has ERMS 0x4000
glm:Has ERMS 0x4000
glp:Has ERMS 0x4000
gnr:Has ERMS 0x4000
gnr256:Has ERMS 0x4000
hsw:Has ERMS 0x4000
icl:Has ERMS 0x4000
icx:Has ERMS 0x4000
ivb:Has ERMS 0x4000
knl:Has ERMS 0x4000
knm:Has ERMS 0x4000
lnl:Has ERMS 0x4000
mrm:Has ERMS 0x0
mtl:Has ERMS 0x4000
nhm:Has ERMS 0x0
pnr:Has ERMS 0x0
rpl:Has ERMS 0x4000
skl:Has ERMS 0x4000
skx:Has ERMS 0x4000
slm:Has ERMS 0x4000
slt:Has ERMS 0x0
snb:Has ERMS 0x0
snr:Has ERMS 0x4000
spr:Has ERMS 0x4000
srf:Has ERMS 0x4000
tgl:Has ERMS 0x4000
tnt:Has ERMS 0x4000
wsm:Has ERMS 0x0
Change-Id: I18e5a3905f2691ab66d4d0cb6f668c0a0ff72d37
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6027541
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2024-11-18 17:56:45 +00:00
build_overrides Define enable_safe_libcxx in build_overrides/build.gni. 2023-05-03 06:08:40 +00:00
docs Update README.md and environment_variables.md for Arm 2024-09-20 00:29:33 +00:00
include CpuId test FSMR - Fast Short Rep Movsb 2024-11-18 17:56:45 +00:00
infra/config infra: Move libyuv ci/try jobs from Ubuntu-18.04 to Ubuntu-22.04 2024-05-21 15:55:24 +00:00
riscv_script Support RVV v0.12 intrinsics for row_rvv.cc & scale_rvv.cc 2024-06-17 18:01:49 +00:00
source CpuId test FSMR - Fast Short Rep Movsb 2024-11-18 17:56:45 +00:00
tools_libyuv Do not roll the Fuchsia SDK. 2023-07-03 09:18:00 +00:00
unit_test CpuId test FSMR - Fast Short Rep Movsb 2024-11-18 17:56:45 +00:00
util CpuId test FSMR - Fast Short Rep Movsb 2024-11-18 17:56:45 +00:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
.gn Roll chromium_revision 829c6df33d..7d683aeda8 (945687:1050091) 2022-09-22 14:56:57 +00:00
.vpython remove swarming_client 2021-09-09 07:11:45 +00:00
.vpython3 Update vpython3 requests 2023-06-01 19:06:40 +00:00
Android.bp Split scale_test and scale_plane_test to allow building on small devices 2023-12-09 18:39:41 +00:00
Android.mk Split scale_test and scale_plane_test to allow building on small devices 2023-12-09 18:39:41 +00:00
AUTHORS [DEPS] Remove cleanup_links pre_deps_hooks 2024-04-08 15:47:48 +00:00
BUILD.gn [AArch64] Add SME implementation of ScaleRowDown2 2024-10-30 17:56:41 +00:00
CM_linux_packages.cmake Use grep extended regex for version 2024-11-13 02:11:17 +00:00
CMakeLists.txt CMakeLists.txt: Fix typo: OLD_CMAKE_{REQURED => REQUIRED}_FLAGS 2024-11-12 18:22:45 +00:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS [DEPS] Remove cleanup_links pre_deps_hooks 2024-04-08 15:47:48 +00:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-09 19:34:43 +00:00
download_vs_toolchain.py Update gclient instructions + environment 2022-02-24 15:19:23 +00:00
libyuv.gni Revert "Do not enable libyuv_use_sme for is_android" 2024-10-15 18:20:36 +00:00
libyuv.gyp Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
libyuv.gypi Fix missing headers in GN/GYP build files 2024-04-01 09:19:24 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk Split convert_test and convert_argb_test to allow building on small systems that run out of memory compiling unittests. 2023-12-08 13:39:56 +00:00
OWNERS add jansson@google.com to infra owners to cover when Mirko is OOO 2022-10-28 09:46:02 +00:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
public.mk use unix line endings 2018-06-20 23:19:59 +00:00
pylintrc Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
README.chromium CpuId test FSMR - Fast Short Rep Movsb 2024-11-18 17:56:45 +00:00
README.md Update README.md and environment_variables.md for Arm 2024-09-20 00:29:33 +00:00
winarm.mk NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00

README.md

libyuv is an open source project that includes YUV scaling and conversion functionality.

  • Scale YUV to prepare content for compression, with point, bilinear or box filter.
  • Convert to YUV from webcam formats for compression.
  • Convert to RGB formats for rendering/effects.
  • Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
  • Optimized for SSSE3/AVX2 on x86/x64.
  • Optimized for Neon/SVE2/SME on Arm.
  • Optimized for MSA on Mips.
  • Optimized for RVV on RISC-V.

Development

See Getting started for instructions on how to get started developing.

You can also browse the docs directory for more documentation.