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P010ToI010 and P012ToI012 conversion functions

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- Convert 10 and 12 bit biplanar formats to planar.
- Shift 10 MSB to 10 LSB
- P010 is similar to NV12 in layout, but uses 10 MSB of 16 bit values.
- I010 is similar to I420 in layout, but uses 10 LSB of 16 bit values.

Bug: libyuv:951
Change-Id: I16a1bc64239d0fa4f41810910da448bf5720935f
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4166560
Reviewed-by: Justin Green <greenjustin@google.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
This commit is contained in:
Frank Barchard 2023-01-13 10:05:00 -08:00 committed by libyuv LUCI CQ
parent 010dea8ba4
commit d5aa3d4a76
5 changed files with 101 additions and 2 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1856
Version: 1857
License: BSD
License File: LICENSE

30
include/libyuv/convert.h
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@ -604,6 +604,36 @@ int NV16ToNV24(const uint8_t* src_y,
int width,
int height);
// Convert P010 to I010.
LIBYUV_API
int P010ToI010(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_uv,
int src_stride_uv,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height);
// Convert P012 to I012.
LIBYUV_API
int P012ToI012(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_uv,
int src_stride_uv,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height);
// Convert P010 to P410.
LIBYUV_API
int P010ToP410(const uint16_t* src_y,

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1856
#define LIBYUV_VERSION 1857
#endif // INCLUDE_LIBYUV_VERSION_H_

66
source/convert.cc
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@ -24,6 +24,7 @@ namespace libyuv {
extern "C" {
#endif
// subsample amount uses a shift.
#define SUBSAMPLE(v, a, s) (v < 0) ? (-((-v + a) >> s)) : ((v + a) >> s)
static __inline int Abs(int v) {
return v >= 0 ? v : -v;
@ -1269,6 +1270,71 @@ int NV16ToNV24(const uint8_t* src_y,
return 0;
}
// Any P[420]1[02] to I[420]1[02] format with mirroring.
static int PxxxToIxxx(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_uv,
int src_stride_uv,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height,
int subsample_x,
int subsample_y,
int depth) {
const int uv_width = SUBSAMPLE(width, subsample_x, subsample_x);
const int uv_height = SUBSAMPLE(height, subsample_y, subsample_y);
if (width <= 0 || height == 0) {
return -1;
}
ConvertToLSBPlane_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height,
depth);
SplitUVPlane_16(src_uv, src_stride_uv, dst_u, dst_stride_u, dst_v,
dst_stride_v, uv_width, uv_height, depth);
return 0;
}
LIBYUV_API
int P010ToI010(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_uv,
int src_stride_uv,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height) {
return PxxxToIxxx(src_y, src_stride_y, src_uv, src_stride_uv, dst_y,
dst_stride_y, dst_u, dst_stride_u, dst_v, dst_stride_v,
width, height, 1, 1, 10);
}
LIBYUV_API
int P012ToI012(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_uv,
int src_stride_uv,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height) {
return PxxxToIxxx(src_y, src_stride_y, src_uv, src_stride_uv, dst_y,
dst_stride_y, dst_u, dst_stride_u, dst_v, dst_stride_v,
width, height, 1, 1, 12);
}
LIBYUV_API
int P010ToP410(const uint16_t* src_y,
int src_stride_y,

3
unit_test/convert_test.cc
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@ -48,6 +48,7 @@ namespace libyuv {
#define AR30ToAR30 ARGBCopy
#define ABGRToABGR ARGBCopy
// subsample amount uses a divide.
#define SUBSAMPLE(v, a) ((((v) + (a)-1)) / (a))
// Planar test
@ -649,6 +650,8 @@ TESTBPTOBP(MT2T, uint8_t, 10 / 8, 2, 2, P010, uint16_t, 2, 2, 2, 10, 16, 32)
TESTBPTOP(NV12, uint8_t, 1, 2, 2, I420, uint8_t, 1, 2, 2, 8, 1, 1)
TESTBPTOP(NV21, uint8_t, 1, 2, 2, I420, uint8_t, 1, 2, 2, 8, 1, 1)
TESTBPTOP(MM21, uint8_t, 1, 2, 2, I420, uint8_t, 1, 2, 2, 8, 16, 32)
TESTBPTOP(P010, uint16_t, 2, 2, 2, I010, uint16_t, 2, 2, 2, 10, 1, 1)
TESTBPTOP(P012, uint16_t, 2, 2, 2, I012, uint16_t, 2, 2, 2, 12, 1, 1)
// Provide matrix wrappers for full range bt.709
#define F420ToABGR(a, b, c, d, e, f, g, h, i, j) \