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Frank Barchard 336e6fd25b I010ToNV12 conversion using 2 step row function for UV 
- convert full Y plane with row coalescing if possible
- convert rows of UV from 10 bit to 8 bit then call MergeUV

libyuv_test '--gunit_filter=*010ToNV12_Opt' --libyuv_width=3840 --libyuv_height=2160 --libyuv_repeat=1000 --libyuv_flags=-1 --libyuv_cpu_info=-1
Note: Google Test filter = *010ToNV12_Opt

Skylake Xeon Was 2 pass planes
[       OK ] LibYUVConvertTest.I010ToNV12_Opt (4512 ms)
Now 2 pass rows
[       OK ] LibYUVConvertTest.I010ToNV12_Opt (2400 ms)
[       OK ] LibYUVConvertTest.P010ToNV12_Opt (2265 ms)

On Samsung S23
libyuv_test --gunit_filter=*.????ToNV12_Opt --libyuv_width=3840 --libyuv_height=2160 --libyuv_repeat=1000'

Was
[       OK ] LibYUVConvertTest.I010ToNV12_Opt (3563 ms)

Now
[       OK ] LibYUVConvertTest.AYUVToNV12_Opt (3068 ms
[       OK ] LibYUVConvertTest.ARGBToNV12_Opt (2990 ms
[       OK ] LibYUVConvertTest.ABGRToNV12_Opt (2904 ms
[       OK ] LibYUVConvertTest.P010ToNV12_Opt (1177 ms
[       OK ] LibYUVConvertTest.I010ToNV12_Opt (1150 ms <- now
[       OK ] LibYUVConvertTest.I444ToNV12_Opt (1118 ms
[       OK ] LibYUVConvertTest.MM21ToNV12_Opt (1008 ms
[       OK ] LibYUVConvertTest.UYVYToNV12_Opt (1007 ms
[       OK ] LibYUVConvertTest.YUY2ToNV12_Opt (938 ms)
[       OK ] LibYUVConvertTest.NV21ToNV12_Opt (496 ms)
[       OK ] LibYUVConvertTest.I420ToNV12_Opt (466 ms)


Bug: b/357439226, b/357721018
Change-Id: I48405929ae835b171e7d556a16794eac22c50ae9
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5782404
Reviewed-by: Wan-Teh Chang <wtc@google.com>
2024-08-13 19:30:16 +00:00
build_overrides Define enable_safe_libcxx in build_overrides/build.gni. 2023-05-03 06:08:40 +00:00
docs [docs] Add documentation on AArch64 SME for feature detection 2024-06-03 22:39:03 +00:00
include Note stride params of HalfFloatPlane are in bytes 2024-08-12 20:17:23 +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 I010ToNV12 conversion using 2 step row function for UV 2024-08-13 19:30:16 +00:00
tools_libyuv Do not roll the Fuchsia SDK. 2023-07-03 09:18:00 +00:00
unit_test Fix -Wmissing-prototypes warnings 2024-08-12 19:08:24 +00:00
util Fix -Wmissing-prototypes warnings 2024-08-12 19:08:24 +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 Run "gn format" on BUILD.gn and libyuv.gni 2024-08-11 20:32:05 +00:00
CM_linux_packages.cmake Reduce cmake verbosity and update min version 2022-08-03 06:59:54 +00:00
CMakeLists.txt cmake: Check whether SME functions can be compiled 2024-07-23 16:58:50 +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 Restrict libyuv_use_sme to is_linux 2024-08-11 20:37:04 +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 Add test for I010ToNV12 2024-08-12 18:57:56 +00:00
README.md Add RAWToARGBRow_RVV,RAWToRGBARow_RVV,RAWToRGB24Row_RVV 2023-04-07 18:45:08 +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 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.