For more info on ubsan, see
http://dev.chromium.org/developers/testing/undefinedbehaviorsanitizer

TESTED=Passing compilation using:
GYP_DEFINES="ubsan=1"
GYP_DEFINES="ubsan_vptr=1"

R=harryjin@google.com, pbos@webrtc.org
BUG=libyuv:563

Review URL: https://codereview.chromium.org/1654253004 .

For more info, see
http://dev.chromium.org/developers/testing/undefinedbehaviorsanitizer

TESTED=Passing compilation using:
GYP_DEFINES="ubsan=1"
GYP_DEFINES="ubsan_vptr=1"

R=harryjin@google.com, pbos@webrtc.org
BUG=libyuv:563,webrtc:5124

Review URL: https://codereview.chromium.org/1659713002 .

This is an UBSan error reported by libjingle

[ RUN      ] WebRtcVideoFrameTest.ConvertToYUY2BufferStride
[000:000] (videoframe.cc:375): Validate frame passed. format: I420 bpp: 12 size: 1280x720 bytes: 1382400 expected: 1382400 sample[0..3]: 73, 73, 73, 73
../../chromium/src/third_party/libyuv/source/row_gcc.cc:2903:25: runtime error: signed integer overflow: 128 * 16843009 cannot be represented in type 'int'
[8/614] WebRtcVideoFrameTest.ConvertToYUY2BufferStride returned/aborted with exit code 1 (32 ms)
[9/614] WebRtcVideoFrameTest.ConvertToYUY2BufferInverted (29 ms)
Note: Google Test filter = WebRtcVideoFrameTest.ConvertToYUY2BufferInverted

The source is uint8 and the multiply is by 0x01010101 to replicate the byte to 4 bytes.
Changing the constant to 0x01010101u should avoid overflow.

R=harryjin@google.com
TBR=harryjin@google.com
BUG=libyuv:563

Review URL: https://codereview.chromium.org/1657533005 .

MJPGToARGB prototype is in both convert_argb.h and planar_functions.h
Remove the duplicate prototype from planar_functions.h

R=harryjin@google.com
TBR=harryjin@google.com
BUG=libyuv:561

Review URL: https://codereview.chromium.org/1638133002 .

R=harryjin@google.com
TBR=harryjin@google.com, kjellander@google.com
BUG=libyuv:551

Review URL: https://codereview.chromium.org/1612123002 .

This works around a compile problem with iossim.mm.

BUG=libyuv:548
TBR=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1611123004 .

As this bot was removed in https://codereview.chromium.org/1613013003/

TBR=fbarchard@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1615793002 .

When scanning profiles for unexpected _C functions
this test function contained the substring.
Changing the name will simplify the search.

TBR=harryjin@google.com
BUG=libyuv:543

Review URL: https://codereview.chromium.org/1602363002 .

When the image height for unittests was set to an
odd height, the TestI420 unittest would not fill
the complete source buffer.  This change handles
the odd height test case.
No change to library code.

TBR=harryjin@google.com
BUG=libyuv:549

Review URL: https://codereview.chromium.org/1609103002 .

When width was odd Y channel wrote an extra pixel.
This change splits the Y from UV into a temporary
buffer and memcpy's to the destination.  Performance
is slower.

Was
YUY2ToNV12_Any (307 ms)
YUY2ToNV12_Unaligned (213 ms)
TestYUY2ToNV12 (181 ms)
YUY2ToNV12_Opt (177 ms)
YUY2ToNV12_Invert (177 ms)

Npw
YUY2ToNV12_Any (300 ms)
YUY2ToNV12_Unaligned (226 ms)
YUY2ToNV12_Invert (206 ms)
TestYUY2ToNV12 (184 ms)
YUY2ToNV12_Opt (181 ms)
TBR=harryjin@google.com
BUG=libyuv:545

Review URL: https://codereview.chromium.org/1593833002 .

I420ToNV21 passes the wrong dst_stride_y when it calls I420ToNV12; parameter 8 (convert_from.cc:448) is src_stride_y but should be dst_stride_y.  This causes image corruption when converting I420 -> NV21 with mismatched luminance strides.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:547

Review URL: https://codereview.chromium.org/1582793008 .

Remove assumption on absolute paths in java_cpp_enum.py.

In java_cpp_enum.py there were assumptions on 'build' being
a component of the absolute path of the script invoking the
script. This leads to problems when other projects are using
the Chromium build toolchain (in this case libyuv), where
the script invoking GYP is located in the root of the project
dir (https://chromium.googlesource.com/libyuv/libyuv/+/master/gyp_libyuv).

TBR=harryjin@google.com, jkellander@chromium.org
BUG=libyuv:536

Review URL: https://codereview.chromium.org/1581773003 .

gflags has a build warning in the chromium version.

../../third_party/gflags/src/gflags.cc:281:53: error: unused typedef 'true_false_equal' [-Werror,-Wunused-local-typedef]
    COMPILE_ASSERT(sizeof(kTrue) == sizeof(kFalse), true_false_equal);
                                                    ^
1 error generated.
[8/231] CXX obj/chromium/src/testing/gtest/src/gtest.gtest.o

Its been reported and fixed upstream
https://github.com/gflags/gflags/issues/125

But not pulled into chromium.  Last update to flags was in 2013.
This change disables the warning.

R=harryjin@google.com, kjellander@chromium.org, jkellander@chromium.org
BUG=libyuv:536, webrtc:5397, webrtc:5398, webrtc:5399

Review URL: https://codereview.chromium.org/1581123002 .

R=harryjin@google.com
BUG=libyuv:546

Review URL: https://codereview.chromium.org/1574253004 .

Also renames Inverted to Invert in test name for consistency.

TBR=harryjin@google.com
BUG=libyuv:543

Review URL: https://codereview.chromium.org/1577973004 .

TBR=harryjin@google.com
BUG=libyuv:543

Review URL: https://codereview.chromium.org/1577723003 .

Macro define and macro ifdef didnt match, leading to C code
being used.  Make macro match function name.

TBR=harryjin@google.com
BUG=libyuv:543

Review URL: https://codereview.chromium.org/1579023002 .

use_sysroot=0 is required for webrtc on linux intel builds, but
libyuv doesnt use the affected libraries, so removing this.

R=harryjin@google.com, sbc@chromium.org
BUG=libyuv:534,libyuv:542

Review URL: https://codereview.chromium.org/1566303002 .

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:538

Review URL: https://codereview.chromium.org/1558093003 .

R=dhrosa@google.com
BUG=libyuv:539

Review URL: https://codereview.chromium.org/1557923005 .

port scaledownby4_avx2 to gcc

TBR=harryjin@google.com
BUG=libyuv:492

Review URL: https://codereview.chromium.org/1546763002 .

TBR=harryjin@google.com
BUG=libyuv:537

Review URL: https://codereview.chromium.org/1547703002 .

TBR=harryjin@google.com
BUG=libyuv:535

Review URL: https://codereview.chromium.org/1543773002 .

In addition to https://codereview.chromium.org/1526163002
disable sysroot only for x86 and x64.

Keep using sysroot for other archs
due to crosscompiling.

BUG=none
R=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1536403002 .

BUG=libyuv:535
R=dhrosa@google.com

Review URL: https://codereview.chromium.org/1535833003 .

Remove inaccurate specializations for 1/4 and 3/4, since they round
incorrectly.  Specialize for 100% and 50% are kept due to performance.
Make C and ARM code match SSSE3.
Make unittests expect zero difference.

BUG=libyuv:535
R=harryjin@google.com

Review URL: https://codereview.chromium.org/1533643005 .

TBR=harryjin@google.com
BUG=libyuv:533

Review URL: https://codereview.chromium.org/1535433003 .

BUG=libyuv:533

TBR=harryjin@google.com

Review URL: https://codereview.chromium.org/1531143002 .

BUG=libyuv:534
R=kjellander@chromium.org

Review URL: https://codereview.chromium.org/1535493002 .

Fixing the failure:
 'TransposeWx8_Fast_MIPS_DSPR2' was not declared in this scope

BUG=none
R=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1527243002 .

TBR=harryjin@google.com
BUG=libyuv:447

Review URL: https://codereview.chromium.org/1525033005 .

TBR=harryjin@google.com
BUG=libyuv:534

Review URL: https://codereview.chromium.org/1526163002 .

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1520423003 .

TBR=harryjin@google.com
BUG=libyuv:533

Review URL: https://codereview.chromium.org/1527903002 .

When scaling down by 2 the formula should round consistently.
(a+b+c+d+2)/4
The C version did but the SSE2 version was doing 2 averages.
avg(avg(a,b),avg(c,d))
This change uses a sum, then rounds.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:447,libyuv:527

Review URL: https://codereview.chromium.org/1513183004 .

BUG=568883
R=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1516653004 .

remove include from unittest.cc that is already done by unittest.h

TBR=harryjin@google.com
BUG=libyuv:530

Review URL: https://codereview.chromium.org/1513263004 .

include paths break for gtest

TBR=harryjin@google.com
BUG=none

Review URL: https://codereview.chromium.org/1517123002 .

Some functions run out of registers when compiled for debug,
fpic, with stack frames on 32 bit x86 with clang.
Previously they were enabled based on _DEBUG but that macro
is not set in some build systems.  This CL adds DEBUG macro as
well to cover those environments.

R=harryjin@google.com
BUG=libyuv:532

Review URL: https://codereview.chromium.org/1517693005 .

BUG=none
R=harryjin@google.com

Review URL: https://codereview.chromium.org/1506023009 .