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1,778 Commits 3 Branches 0 Tags BSD-3-Clause 60 MiB
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C 2.2%
Python 1.6%
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Manojkumar Bhosale 288bfbefb5 Add MSA optimized remaining scale row functions 
R=fbarchard@google.com
BUG=libyuv:634

Performance Gain (vs C vectorized)
ScaleRowDown2_MSA            - ~22.3x
ScaleRowDown2_Any_MSA        - ~19.9x
ScaleRowDown2Linear_MSA      - ~31.2x
ScaleRowDown2Linear_Any_MSA  - ~29.4x
ScaleRowDown2Box_MSA         - ~20.1x
ScaleRowDown2Box_Any_MSA     - ~19.6x
ScaleRowDown4_MSA            - ~11.7x
ScaleRowDown4_Any_MSA        - ~11.2x
ScaleRowDown4Box_MSA         - ~15.1x
ScaleRowDown4Box_Any_MSA     - ~15.1x
ScaleRowDown38_MSA           - ~1x
ScaleRowDown38_Any_MSA       - ~1x
ScaleRowDown38_2_Box_MSA     - ~1.7x
ScaleRowDown38_2_Box_Any_MSA - ~1.7x
ScaleRowDown38_3_Box_MSA     - ~1.7x
ScaleRowDown38_3_Box_Any_MSA - ~1.7x
ScaleAddRow_MSA              - ~1.2x
ScaleAddRow_Any_MSA          - ~1.15x

Performance Gain (vs C non-vectorized)
ScaleRowDown2_MSA            - ~22.4x
ScaleRowDown2_Any_MSA        - ~19.8x
ScaleRowDown2Linear_MSA      - ~31.6x
ScaleRowDown2Linear_Any_MSA  - ~29.4x
ScaleRowDown2Box_MSA         - ~20.1x
ScaleRowDown2Box_Any_MSA     - ~19.6x
ScaleRowDown4_MSA            - ~11.7x
ScaleRowDown4_Any_MSA        - ~11.2x
ScaleRowDown4Box_MSA         - ~15.1x
ScaleRowDown4Box_Any_MSA     - ~15.1x
ScaleRowDown38_MSA           - ~3.2x
ScaleRowDown38_Any_MSA       - ~3.2x
ScaleRowDown38_2_Box_MSA     - ~2.4x
ScaleRowDown38_2_Box_Any_MSA - ~2.3x
ScaleRowDown38_3_Box_MSA     - ~2.9x
ScaleRowDown38_3_Box_Any_MSA - ~2.8x
ScaleAddRow_MSA              - ~8x
ScaleAddRow_Any_MSA          - ~7.46x

Review-Url: https://codereview.chromium.org/2559683002 .
2016-12-21 13:39:44 +05:30
build_overrides cherry picking changes needed for deps roll. 2016-10-25 15:54:59 -07:00
chromium Enable building with Native Client. 2016-04-12 06:40:04 +02:00
docs document GN for ios 2016-10-25 17:13:59 -07:00
include Add MSA optimized remaining scale row functions 2016-12-21 13:39:44 +05:30
source Add MSA optimized remaining scale row functions 2016-12-21 13:39:44 +05:30
third_party/gflags Roll chromium_revision 1d144ca7f86..2a818f5413 (375480:395512) 2016-05-24 11:41:04 +02:00
tools landmine to clobber old GYP build artifacts to enable moving to GN. 2016-10-18 08:56:41 +02:00
unit_test Remove unused time variables 2016-11-07 17:46:51 -08:00
util clang-format libyuv 2016-11-07 17:37:23 -08:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore cherry picking changes needed for deps roll. 2016-10-25 15:54:59 -07:00
.gn Add GN files that need exec_script to list for win64 clang-cl 2016-10-12 12:46:22 -07:00
all.gyp Android support 2013-11-21 19:57:10 +00:00
Android.mk Add MSA optimized TransposeWx8_MSA and TransposeUVWx8_MSA functions 2016-12-15 10:06:01 +05:30
AUTHORS Adding AUTHORS file to libyuv 2011-11-01 20:44:21 +00:00
BUILD.gn Add MSA optimized TransposeWx8_MSA and TransposeUVWx8_MSA functions 2016-12-15 10:06:01 +05:30
CMakeLists.txt Add MSA optimized TransposeWx8_MSA and TransposeUVWx8_MSA functions 2016-12-15 10:06:01 +05:30
codereview.settings Remove references to svn version control. 2016-09-14 14:54:47 -07:00
DEPS Add landmine support 2016-10-17 15:37:47 +02:00
download_vs_toolchain.py Roll chromium_revision 260824:262938 + fix binutils. Since it's not possible to have platform-specific hooks executing, binutils must be downloaded for all platforms in order for the download.py hook to execute properly on non-unix platforms. 2014-04-11 23:40:41 +00:00
gyp_libyuv Skip running GYP if GYP_CHROMIUM_NO_ACTION is set in environment 2016-04-08 14:01:29 +02:00
gyp_libyuv.py Minor fixes to gyp_libyuv.py 2014-03-28 19:38:05 +00:00
libyuv_nacl.gyp NaCl/GYP: remove references to prep_toolchain from libyuv. prep_toolchain is now a no-op. 2015-04-22 17:42:21 +00:00
libyuv_test.gyp modified libyuv.gyp so that it no longer depends on libjpeg.gyp, which does not exist anymore. 2016-12-19 11:57:49 -08:00
libyuv.gni Add MIPS SIMD Arch (MSA) optimized MirrorRow function 2016-09-22 16:12:22 -07:00
libyuv.gyp modified libyuv.gyp so that it no longer depends on libjpeg.gyp, which does not exist anymore. 2016-12-19 11:57:49 -08:00
libyuv.gypi Add MSA optimized TransposeWx8_MSA and TransposeUVWx8_MSA functions 2016-12-15 10:06:01 +05:30
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
LICENSE_THIRD_PARTY README.chromium license field for WebView and LICENSE_THIRD_PARTY to show files with special licenses. 2013-04-24 00:12:28 +00:00
linux.mk Remove -lc++ link and document -fno-exceptions 2016-07-06 16:02:17 -07:00
OWNERS Add new OWNERS and remove drover.properties. 2016-02-16 19:53:11 +01:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py PRESUBMIT: Remove GYP trybots 2016-10-18 07:54:36 +02:00
public.mk Android.mk moved into libyuv to central support 2012-09-19 07:27:17 +00:00
README.chromium modified libyuv.gyp so that it no longer depends on libjpeg.gyp, which does not exist anymore. 2016-12-19 11:57:49 -08:00
README.md Docs: Fix broken links from README.md 2016-03-15 17:38:14 -07:00
setup_links.py cherry picking changes needed for deps roll. 2016-10-25 15:54:59 -07:00
sync_chromium.py Enable building with Native Client. 2016-04-12 06:40:04 +02:00
winarm.mk Adds files and functions for rotate any, but does not hook them up to the caller. 2015-07-27 10:32:08 -07:00

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.
  • Convert from YUV to formats for rendering/effects.
  • Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
  • Optimized for SSE2/SSSE3/AVX2 on x86/x64.
  • Optimized for Neon on Arm.
  • Optimized for DSP R2 on Mips.

Development

See [Getting started] 1 for instructions on how to get started developing.

You can also browse the [docs directory] 2 for more documentation.