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Add J444ToARGB conversion function.

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J444 is JPeg YUV color space with 444 subsampling.
This implementation uses the existing I444ToARGB conversion, which is
BT.601 color space with 444 subsampling, but passing in the jpeg
color matrix constants.

TBR=harryjin@google.com
BUG=449

Review URL: https://codereview.chromium.org/1387313002 .
This commit is contained in:
Frank Barchard 2015-10-06 18:46:53 -07:00
parent d70293993f
commit f00bc9ef46
5 changed files with 50 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1500
Version: 1501
License: BSD
License File: LICENSE

8
include/libyuv/convert_argb.h
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@ -60,6 +60,14 @@ int I444ToARGB(const uint8* src_y, int src_stride_y,
uint8* dst_argb, int dst_stride_argb,
int width, int height);
// Convert J444 to ARGB.
LIBYUV_API
int J444ToARGB(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_argb, int dst_stride_argb,
int width, int height);
// Convert I444 to ABGR.
LIBYUV_API
int I444ToABGR(const uint8* src_y, int src_stride_y,

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1500
#define LIBYUV_VERSION 1501
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

45
source/convert_argb.cc
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@ -46,11 +46,12 @@ int ARGBCopy(const uint8* src_argb, int src_stride_argb,
// Convert I444 to ARGB.
LIBYUV_API
int I444ToARGB(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_argb, int dst_stride_argb,
int width, int height) {
static int I444ToARGBMatrix(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_argb, int dst_stride_argb,
struct YuvConstants* yuvconstants,
int width, int height) {
int y;
void (*I444ToARGBRow)(const uint8* y_buf,
const uint8* u_buf,
@ -104,7 +105,7 @@ int I444ToARGB(const uint8* src_y, int src_stride_y,
#endif
for (y = 0; y < height; ++y) {
I444ToARGBRow(src_y, src_u, src_v, dst_argb, &kYuvConstants, width);
I444ToARGBRow(src_y, src_u, src_v, dst_argb, yuvconstants, width);
dst_argb += dst_stride_argb;
src_y += src_stride_y;
src_u += src_stride_u;
@ -113,6 +114,38 @@ int I444ToARGB(const uint8* src_y, int src_stride_y,
return 0;
}
// Convert I444 to ARGB.
LIBYUV_API
int I444ToARGB(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_argb, int dst_stride_argb,
int width, int height) {
return I444ToARGBMatrix(src_y, src_stride_y,
src_u, src_stride_u,
src_v, src_stride_v,
dst_argb, dst_stride_argb,
&kYuvConstants,
width, height);
}
// Convert J444 to ARGB.
LIBYUV_API
int J444ToARGB(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_argb, int dst_stride_argb,
int width, int height) {
return I444ToARGBMatrix(src_y, src_stride_y,
src_u, src_stride_u,
src_v, src_stride_v,
dst_argb, dst_stride_argb,
&kYuvJConstants,
width, height);
}
// Convert I444 to ABGR.
LIBYUV_API
int I444ToABGR(const uint8* src_y, int src_stride_y,

1
unit_test/convert_test.cc
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@ -509,6 +509,7 @@ TESTPLANARTOB(I422, 2, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(I422, 2, 1, RGBA, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(I411, 4, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(I444, 1, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(J444, 1, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(I444, 1, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
TESTPLANARTOB(I420, 2, 2, YUY2, 2, 4, 1, 1, ARGB, 4)
TESTPLANARTOB(I420, 2, 2, UYVY, 2, 4, 1, 1, ARGB, 4)