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Add I422 and I210 functions

Browse Source 
Bug: webrtc:13826
Change-Id: I68235a668abecf76133f7b89472b192b1442bed4
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3557217
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
This commit is contained in:
Sergio Garcia Murillo 2022-03-30 11:20:30 +02:00 committed by libyuv LUCI CQ
parent f4d2530846
commit 4589081cea
6 changed files with 295 additions and 0 deletions
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17
include/libyuv/convert.h
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@ -106,6 +106,23 @@ int I422ToI444(const uint8_t* src_y,
int width, int width,
int height); int height);
// Convert I422 to I210.
LIBYUV_API
int I422ToI210(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
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 MM21 to NV12. // Convert MM21 to NV12.
LIBYUV_API LIBYUV_API
int MM21ToNV12(const uint8_t* src_y, int MM21ToNV12(const uint8_t* src_y,

18
include/libyuv/planar_functions.h
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@ -352,6 +352,24 @@ int I444Copy(const uint8_t* src_y,
int width, int width,
int height); int height);
// Copy I210 to I210.
#define I210ToI210 I210opy
LIBYUV_API
int I210Copy(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
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);
// Copy NV12. Supports inverting. // Copy NV12. Supports inverting.
int NV12Copy(const uint8_t* src_y, int NV12Copy(const uint8_t* src_y,
int src_stride_y, int src_stride_y,

66
include/libyuv/scale.h
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@ -195,6 +195,72 @@ int I444Scale_12(const uint16_t* src_y,
int dst_height, int dst_height,
enum FilterMode filtering); enum FilterMode filtering);
// Scales a YUV 4:2:2 image from the src width and height to the
// dst width and height.
// If filtering is kFilterNone, a simple nearest-neighbor algorithm is
// used. This produces basic (blocky) quality at the fastest speed.
// If filtering is kFilterBilinear, interpolation is used to produce a better
// quality image, at the expense of speed.
// If filtering is kFilterBox, averaging is used to produce ever better
// quality image, at further expense of speed.
// Returns 0 if successful.
LIBYUV_API
int I422Scale(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
int src_width,
int src_height,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_u,
int dst_stride_u,
uint8_t* dst_v,
int dst_stride_v,
int dst_width,
int dst_height,
enum libyuv::FilterMode filtering);
LIBYUV_API
int I422Scale_16(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
int src_width,
int src_height,
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 dst_width,
int dst_height,
enum libyuv::FilterMode filtering);
LIBYUV_API
int I422Scale_12(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
int src_width,
int src_height,
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 dst_width,
int dst_height,
enum libyuv::FilterMode filtering);
// Scales an NV12 image from the src width and height to the // Scales an NV12 image from the src width and height to the
// dst width and height. // dst width and height.
// If filtering is kFilterNone, a simple nearest-neighbor algorithm is // If filtering is kFilterNone, a simple nearest-neighbor algorithm is

41
source/convert.cc
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@ -523,6 +523,47 @@ int I422ToI420(const uint8_t* src_y,
dst_v, dst_stride_v, width, height, src_uv_width, height); dst_v, dst_stride_v, width, height, src_uv_width, height);
} }
LIBYUV_API
int I422ToI210(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
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 halfwidth = (width + 1) >> 1;
if (!src_u || !src_v || !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;
}
// Convert Y plane.
libyuv::Convert8To16Plane(src_y, src_stride_y, dst_y, dst_stride_y, 1024,
width, height);
// Convert UV planes.
libyuv::Convert8To16Plane(src_u, src_stride_u, dst_u, dst_stride_u, 1024,
halfwidth, height);
libyuv::Convert8To16Plane(src_v, src_stride_v, dst_v, dst_stride_v, 1024,
halfwidth, height);
return 0;
}
// TODO(fbarchard): Implement row conversion. // TODO(fbarchard): Implement row conversion.
LIBYUV_API LIBYUV_API
int I422ToNV21(const uint8_t* src_y, int I422ToNV21(const uint8_t* src_y,

43
source/planar_functions.cc
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@ -299,6 +299,49 @@ int I444Copy(const uint8_t* src_y,
return 0; return 0;
} }
// Copy I210.
LIBYUV_API
int I210Copy(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
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 halfwidth = (width + 1) >> 1;
if (!src_u || !src_v || !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;
}
if (dst_y) {
libyuv::CopyPlane_16(src_y, src_stride_y, dst_y, dst_stride_y, width,
height);
}
// Copy UV planes.
libyuv::CopyPlane_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth,
height);
libyuv::CopyPlane_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth,
height);
return 0;
}
// Copy I400. // Copy I400.
LIBYUV_API LIBYUV_API
int I400ToI400(const uint8_t* src_y, int I400ToI400(const uint8_t* src_y,

110
source/scale.cc
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@ -2328,6 +2328,116 @@ int I444Scale_12(const uint16_t* src_y,
return 0; return 0;
} }
// Scale an I422 image.
// This function in turn calls a scaling function for each plane.
LIBYUV_API
int I422Scale(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
int src_width,
int src_height,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_u,
int dst_stride_u,
uint8_t* dst_v,
int dst_stride_v,
int dst_width,
int dst_height,
enum libyuv::FilterMode filtering) {
if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 ||
src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v ||
dst_width <= 0 || dst_height <= 0) {
return -1;
}
int src_halfwidth = SUBSAMPLE(src_width, 1, 1);
int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1);
libyuv::ScalePlane(src_y, src_stride_y, src_width, src_height, dst_y,
dst_stride_y, dst_width, dst_height, filtering);
libyuv::ScalePlane(src_u, src_stride_u, src_halfwidth, src_height, dst_u,
dst_stride_u, dst_halfwidth, dst_height, filtering);
libyuv::ScalePlane(src_v, src_stride_v, src_halfwidth, src_height, dst_v,
dst_stride_v, dst_halfwidth, dst_height, filtering);
return 0;
}
LIBYUV_API
int I422Scale_16(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
int src_width,
int src_height,
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 dst_width,
int dst_height,
enum libyuv::FilterMode filtering) {
if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 ||
src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v ||
dst_width <= 0 || dst_height <= 0) {
return -1;
}
int src_halfwidth = SUBSAMPLE(src_width, 1, 1);
int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1);
libyuv::ScalePlane_16(src_y, src_stride_y, src_width, src_height, dst_y,
dst_stride_y, dst_width, dst_height, filtering);
libyuv::ScalePlane_16(src_u, src_stride_u, src_halfwidth, src_height, dst_u,
dst_stride_u, dst_halfwidth, dst_height, filtering);
libyuv::ScalePlane_16(src_v, src_stride_v, src_halfwidth, src_height, dst_v,
dst_stride_v, dst_halfwidth, dst_height, filtering);
return 0;
}
LIBYUV_API
int I422Scale_12(const uint16_t* src_y,
int src_stride_y,
const uint16_t* src_u,
int src_stride_u,
const uint16_t* src_v,
int src_stride_v,
int src_width,
int src_height,
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 dst_width,
int dst_height,
enum libyuv::FilterMode filtering) {
if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 ||
src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v ||
dst_width <= 0 || dst_height <= 0) {
return -1;
}
int src_halfwidth = SUBSAMPLE(src_width, 1, 1);
int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1);
libyuv::ScalePlane_12(src_y, src_stride_y, src_width, src_height, dst_y,
dst_stride_y, dst_width, dst_height, filtering);
libyuv::ScalePlane_12(src_u, src_stride_u, src_halfwidth, src_height, dst_u,
dst_stride_u, dst_halfwidth, dst_height, filtering);
libyuv::ScalePlane_12(src_v, src_stride_v, src_halfwidth, src_height, dst_v,
dst_stride_v, dst_halfwidth, dst_height, filtering);
return 0;
}
// Scale an NV12 image. // Scale an NV12 image.
// This function in turn calls a scaling function for each plane. // This function in turn calls a scaling function for each plane.