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Darren Hsieh 10de943a12 [RVV] Enable ScaleRowUp2_(Bi)linear_RVV/ScaleUVRowUp2_(Bi)linear_RVV 
ScaleUVRowUp2_(Bi)linear_RVV function is equal to other platforms' ScaleRowUp2_(Bi)linear_Any_XXX.
We process entire row in this function.
Other platforms only implement non-edge part of image and process edge with scalar.
ScaleRowUp2_(Bi)linear_Any_XXX: Combine ScaleRowUp2_(Bi)linear_XXX(non-edge) + ScaleRowUp2_(Bi)linear_C(edge) by SBUH2LANY/SU2BLANY.

* Run on SiFive internal FPGA:

Test case                       RVV function			Speedup
I444ScaleFrom640x360_Bilinear	ScaleRowUp2_Bilinear_RVV	8.21
I444ScaleFrom640x360_Linear	ScaleRowUp2_Linear_RVV	        8.08
UVScaleFrom640x360_Bilinear	ScaleUVRowUp2_Bilinear_RVV	7.80
UVScaleFrom640x360_Linear	ScaleUVRowUp2_Linear_RVV	7.03

Change-Id: I539245ce51858f077506a78f0e7e82377ac6a95d
Signed-off-by: Darren Hsieh <darren.hsieh@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4666062
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
2023-07-26 18:05:50 +00:00
build_overrides Define enable_safe_libcxx in build_overrides/build.gni. 2023-05-03 06:08:40 +00:00
docs [RISC-V] Support CMake build with custom compiler flags 2023-07-25 09:21:59 +00:00
include [RVV] Enable ScaleRowUp2_(Bi)linear_RVV/ScaleUVRowUp2_(Bi)linear_RVV 2023-07-26 18:05:50 +00:00
infra/config Use walleye instead of bullhead 2023-06-01 15:43:00 +00:00
riscv_script [RISC-V] Support CMake build with custom compiler flags 2023-07-25 09:21:59 +00:00
source [RVV] Enable ScaleRowUp2_(Bi)linear_RVV/ScaleUVRowUp2_(Bi)linear_RVV 2023-07-26 18:05:50 +00:00
tools_libyuv Do not roll the Fuchsia SDK. 2023-07-03 09:18:00 +00:00
unit_test Fix warnings for missing prototypes 2023-06-30 17:46:56 +00:00
util yuvconstants.c: fix double->float conv warnings 2023-05-09 18:50:29 +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 FilterRows_NEON - remove unused function - same as InterpolateRow_NEON 2023-06-13 15:20:02 +00:00
Android.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
AUTHORS Fix compile errors for ARM targets when libyuv_use_neon = false 2022-05-13 10:12:38 +00:00
BUILD.gn Add GN builds on loongarch platform. 2023-06-19 17:47:05 +00:00
cleanup_links.py Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
CM_linux_packages.cmake Reduce cmake verbosity and update min version 2022-08-03 06:59:54 +00:00
CMakeLists.txt [RVV] Fix compile warning in row_rvv 2023-06-17 15:41:45 +00:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Add duplicate libcxx source repo paths. 2023-07-25 16:50:28 +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 Add GN builds on loongarch platform. 2023-06-19 17:47:05 +00:00
libyuv.gyp Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
libyuv.gypi Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +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 [ssci] Added Shipped field to READMEs 2023-07-07 06:09:53 +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.