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NV21ToABGR for Android camera conversions

Browse Source 
Bug: libyuv:762
Test: NV21ToABGR unittest
Change-Id: I71448ab83930339083f07eeafccf240c6cb41c48
Reviewed-on: https://chromium-review.googlesource.com/795212
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Cheng Wang <wangcheng@google.com>
This commit is contained in:
Frank Barchard 2017-11-30 11:51:44 -08:00 committed by Commit Bot
parent 324fa32739
commit 49d9b1039b
5 changed files with 248 additions and 26 deletions
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2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1680
Version: 1681
License: BSD
License File: LICENSE

53
include/libyuv/convert_argb.h
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@ -58,8 +58,8 @@ int I420ToABGR(const uint8* src_y,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
uint8* dst_argb,
int dst_stride_argb,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height);
@ -190,6 +190,27 @@ int NV21ToARGB(const uint8* src_y,
int width,
int height);
// Convert NV12 to ABGR.
int NV12ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height);
// Convert NV21 to ABGR.
LIBYUV_API
int NV21ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height);
// Convert M420 to ARGB.
LIBYUV_API
int M420ToARGB(const uint8* src_m420,
@ -423,6 +444,34 @@ int MJPGToARGB(const uint8* sample,
int dst_height);
#endif
// Convert Android420 to ARGB.
LIBYUV_API
int Android420ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_u,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
int src_pixel_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height);
// Convert Android420 to ABGR.
LIBYUV_API
int Android420ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_u,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
int src_pixel_stride_uv,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height);
// Convert camera sample to ARGB with cropping, rotation and vertical flip.
// "src_size" is needed to parse MJPG.
// "dst_stride_argb" number of bytes in a row of the dst_argb plane.

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 1680
#define LIBYUV_VERSION 1681
#endif // INCLUDE_LIBYUV_VERSION_H_

215
source/convert_argb.cc
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@ -1431,16 +1431,16 @@ int ARGB4444ToARGB(const uint8* src_argb4444,
return 0;
}
// Convert NV12 to ARGB.
LIBYUV_API
int NV12ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height) {
// Convert NV12 to ARGB with matrix
static int NV12ToARGBMatrix(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
void (*NV12ToARGBRow)(const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
@ -1496,7 +1496,7 @@ int NV12ToARGB(const uint8* src_y,
#endif
for (y = 0; y < height; ++y) {
NV12ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
NV12ToARGBRow(src_y, src_uv, dst_argb, yuvconstants, width);
dst_argb += dst_stride_argb;
src_y += src_stride_y;
if (y & 1) {
@ -1506,16 +1506,16 @@ int NV12ToARGB(const uint8* src_y,
return 0;
}
// Convert NV21 to ARGB.
LIBYUV_API
int NV21ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height) {
// Convert NV21 to ARGB with matrix
static int NV21ToARGBMatrix(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
void (*NV21ToARGBRow)(const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
@ -1563,7 +1563,7 @@ int NV21ToARGB(const uint8* src_y,
#endif
for (y = 0; y < height; ++y) {
NV21ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
NV21ToARGBRow(src_y, src_uv, dst_argb, yuvconstants, width);
dst_argb += dst_stride_argb;
src_y += src_stride_y;
if (y & 1) {
@ -1573,6 +1573,63 @@ int NV21ToARGB(const uint8* src_y,
return 0;
}
// Convert NV12 to ARGB.
LIBYUV_API
int NV12ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height) {
return NV12ToARGBMatrix(src_y, src_stride_y, src_uv, src_stride_uv, dst_argb,
dst_stride_argb, &kYuvI601Constants, width, height);
}
// Convert NV21 to ARGB.
LIBYUV_API
int NV21ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height) {
return NV21ToARGBMatrix(src_y, src_stride_y, src_uv, src_stride_uv, dst_argb,
dst_stride_argb, &kYuvI601Constants, width, height);
}
// Convert NV12 to ABGR.
// To output ABGR instead of ARGB swap the UV and use a mirrrored yuc matrix.
// To swap the UV use NV12 instead of NV21.LIBYUV_API
int NV12ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_uv,
int src_stride_uv,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height) {
return NV21ToARGBMatrix(src_y, src_stride_y, src_uv, src_stride_uv, dst_abgr,
dst_stride_abgr, &kYvuI601Constants, width, height);
}
// Convert NV21 to ABGR.
LIBYUV_API
int NV21ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_vu,
int src_stride_vu,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height) {
return NV12ToARGBMatrix(src_y, src_stride_y, src_vu, src_stride_vu, dst_abgr,
dst_stride_abgr, &kYvuI601Constants, width, height);
}
// Convert M420 to ARGB.
LIBYUV_API
int M420ToARGB(const uint8* src_m420,
@ -1783,6 +1840,120 @@ int UYVYToARGB(const uint8* src_uyvy,
}
return 0;
}
static void WeavePixels(const uint8* src_u,
const uint8* src_v,
int src_pixel_stride_uv,
uint8* dst_uv,
int width) {
int i;
for (i = 0; i < width; ++i) {
dst_uv[0] = *src_u;
dst_uv[1] = *src_v;
dst_uv += 2;
src_u += src_pixel_stride_uv;
src_v += src_pixel_stride_uv;
}
}
// Convert Android420 to ARGB.
LIBYUV_API
int Android420ToARGBMatrix(const uint8* src_y,
int src_stride_y,
const uint8* src_u,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
int src_pixel_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
uint8* dst_uv;
const ptrdiff_t vu_off = src_v - src_u;
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
halfheight = (height + 1) >> 1;
dst_argb = dst_argb + (height - 1) * dst_stride_argb;
dst_stride_argb = -dst_stride_argb;
}
// I420
if (src_pixel_stride_uv == 1) {
return I420ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_argb, dst_stride_argb,
yuvconstants, width, height);
// NV21
} else if (src_pixel_stride_uv == 2 && vu_off == -1 &&
src_stride_u == src_stride_v) {
return NV21ToARGBMatrix(src_y, src_stride_y, src_v, src_stride_v, dst_argb,
dst_stride_argb, yuvconstants, width, height);
// NV12
} else if (src_pixel_stride_uv == 2 && vu_off == 1 &&
src_stride_u == src_stride_v) {
return NV12ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, dst_argb,
dst_stride_argb, yuvconstants, width, height);
}
// General case fallback creates NV12
align_buffer_64(plane_uv, halfwidth * 2 * halfheight);
dst_uv = plane_uv;
for (y = 0; y < halfheight; ++y) {
WeavePixels(src_u, src_v, src_pixel_stride_uv, dst_uv, halfwidth);
src_u += src_stride_u;
src_v += src_stride_v;
dst_uv += halfwidth * 2;
}
NV12ToARGBMatrix(src_y, src_stride_y, plane_uv, halfwidth * 2, dst_argb,
dst_stride_argb, yuvconstants, width, height);
free_aligned_buffer_64(plane_uv);
return 0;
}
// Convert Android420 to ARGB.
LIBYUV_API
int Android420ToARGB(const uint8* src_y,
int src_stride_y,
const uint8* src_u,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
int src_pixel_stride_uv,
uint8* dst_argb,
int dst_stride_argb,
int width,
int height) {
return Android420ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, src_pixel_stride_uv, dst_argb,
dst_stride_argb, &kYuvI601Constants, width,
height);
}
// Convert Android420 to ABGR.
LIBYUV_API
int Android420ToABGR(const uint8* src_y,
int src_stride_y,
const uint8* src_u,
int src_stride_u,
const uint8* src_v,
int src_stride_v,
int src_pixel_stride_uv,
uint8* dst_abgr,
int dst_stride_abgr,
int width,
int height) {
return Android420ToARGBMatrix(src_y, src_stride_y, src_v, src_stride_v, src_u,
src_stride_u, src_pixel_stride_uv, dst_abgr,
dst_stride_abgr, &kYvuI601Constants, width,
height);
}
#ifdef __cplusplus
} // extern "C"

2
unit_test/convert_test.cc
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@ -739,6 +739,8 @@ TESTQPLANARTOB(I420Alpha, 2, 2, ABGR, 4, 4, 1, 2)
TESTBIPLANARTOB(NV12, 2, 2, ARGB, 4, 2)
TESTBIPLANARTOB(NV21, 2, 2, ARGB, 4, 2)
TESTBIPLANARTOB(NV12, 2, 2, ABGR, 4, 2)
TESTBIPLANARTOB(NV21, 2, 2, ABGR, 4, 2)
TESTBIPLANARTOB(NV12, 2, 2, RGB565, 2, 9)
#ifdef DO_THREE_PLANES