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Add I422Copy and I444Copy

Browse Source 
BUG=none
TEST=I422ToI422 and I444ToI444
Review URL: https://webrtc-codereview.appspot.com/1103009

git-svn-id: http://libyuv.googlecode.com/svn/trunk@570 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2013-02-11 22:00:24 +00:00
parent b444bae883
commit a00da62e52
5 changed files with 95 additions and 7 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv Name: libyuv
URL: http://code.google.com/p/libyuv/ URL: http://code.google.com/p/libyuv/
Version: 569 Version: 570
License: BSD License: BSD
License File: LICENSE License File: LICENSE

32
include/libyuv/planar_functions.h
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@ -22,6 +22,13 @@ namespace libyuv {
extern "C" { extern "C" {
#endif #endif
// Copy a plane of data.
LIBYUV_API
void CopyPlane(const uint8* src_y, int src_stride_y,
uint8* dst_y, int dst_stride_y,
int width, int height);
// Set a plane of data to a 32 bit value.
LIBYUV_API LIBYUV_API
void SetPlane(uint8* dst_y, int dst_stride_y, void SetPlane(uint8* dst_y, int dst_stride_y,
int width, int height, int width, int height,
@ -33,11 +40,28 @@ int I400ToI400(const uint8* src_y, int src_stride_y,
uint8* dst_y, int dst_stride_y, uint8* dst_y, int dst_stride_y,
int width, int height); int width, int height);
// Copy a plane of data (I420 to I400).
// Copy I422 to I422.
#define I422ToI422 I422Copy
LIBYUV_API LIBYUV_API
void CopyPlane(const uint8* src_y, int src_stride_y, int I422Copy(const uint8* src_y, int src_stride_y,
uint8* dst_y, int dst_stride_y, const uint8* src_u, int src_stride_u,
int width, int height); const uint8* src_v, int src_stride_v,
uint8* dst_y, int dst_stride_y,
uint8* dst_u, int dst_stride_u,
uint8* dst_v, int dst_stride_v,
int width, int height);
// Copy I444 to I444.
#define I444ToI444 I444Copy
LIBYUV_API
int I444Copy(const uint8* src_y, int src_stride_y,
const uint8* src_u, int src_stride_u,
const uint8* src_v, int src_stride_v,
uint8* dst_y, int dst_stride_y,
uint8* dst_u, int dst_stride_u,
uint8* dst_v, int dst_stride_v,
int width, int height);
// Convert YUY2 to I422. // Convert YUY2 to I422.
LIBYUV_API LIBYUV_API

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT #ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_ #define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 569 #define LIBYUV_VERSION 570
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT #endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

63
source/planar_functions.cc
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@ -71,6 +71,69 @@ void CopyPlane(const uint8* src_y, int src_stride_y,
} }
} }
// Copy I422.
LIBYUV_API
int I422Copy(const uint8* src_y, int src_stride_y,
const uint8* src_u, int src_stride_u,
const uint8* src_v, int src_stride_v,
uint8* dst_y, int dst_stride_y,
uint8* dst_u, int dst_stride_u,
uint8* dst_v, int dst_stride_v,
int width, int height) {
if (!src_y || !src_u || !src_v ||
!dst_y || !dst_u || !dst_v ||
width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
src_y = src_y + (height - 1) * src_stride_y;
src_u = src_u + (height - 1) * src_stride_u;
src_v = src_v + (height - 1) * src_stride_v;
src_stride_y = -src_stride_y;
src_stride_u = -src_stride_u;
src_stride_v = -src_stride_v;
}
int halfwidth = (width + 1) >> 1;
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, height);
CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, height);
return 0;
}
// Copy I444.
LIBYUV_API
int I444Copy(const uint8* src_y, int src_stride_y,
const uint8* src_u, int src_stride_u,
const uint8* src_v, int src_stride_v,
uint8* dst_y, int dst_stride_y,
uint8* dst_u, int dst_stride_u,
uint8* dst_v, int dst_stride_v,
int width, int height) {
if (!src_y || !src_u || !src_v ||
!dst_y || !dst_u || !dst_v ||
width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
src_y = src_y + (height - 1) * src_stride_y;
src_u = src_u + (height - 1) * src_stride_u;
src_v = src_v + (height - 1) * src_stride_v;
src_stride_y = -src_stride_y;
src_stride_u = -src_stride_u;
src_stride_v = -src_stride_v;
}
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, width, height);
CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, width, height);
return 0;
}
// Copy I400. // Copy I400.
LIBYUV_API LIBYUV_API
int I400ToI400(const uint8* src_y, int src_stride_y, int I400ToI400(const uint8* src_y, int src_stride_y,

3
unit_test/convert_test.cc
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@ -142,7 +142,8 @@ TESTPLANARTOP(I420, 2, 2, I422, 2, 1)
TESTPLANARTOP(I420, 2, 2, I444, 1, 1) TESTPLANARTOP(I420, 2, 2, I444, 1, 1)
TESTPLANARTOP(I420, 2, 2, I411, 4, 1) TESTPLANARTOP(I420, 2, 2, I411, 4, 1)
TESTPLANARTOP(I420, 2, 2, I420Mirror, 2, 2) TESTPLANARTOP(I420, 2, 2, I420Mirror, 2, 2)
TESTPLANARTOP(I422, 2, 1, I422, 2, 1)
TESTPLANARTOP(I444, 1, 1, I444, 1, 1)
#define TESTPLANARTOBPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \ #define TESTPLANARTOBPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \
FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, W1280, N, NEG, OFF) \ FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, W1280, N, NEG, OFF) \