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libyuv/source/convert_to_argb.cc
Sida Zhu dab3111c8a convert, scale: Add P010/P210/P410 convert paths and NV16/NV24/Px10 scale 
P010 and P210 were auxiliary FourCCs and P410 did not exist, so
ConvertToI420, ConvertToARGB, and ConvertFromI420 could not consume or
produce them. Callers had to pick I010/I210 helpers and pack UV by hand.
NV12Scale existed, but NV16/NV24 and P010/P210/P410 had no Scale APIs.

Promote P010 and P210 to primary FourCCs, add FOURCC_P410, and add the
I4xx/Px10 converters those entry points need: I410ToP410, I412ToP412,
P210ToI210, P410ToI410, P010/P210/P410ToI420, I420ToP010/P210/P410,
I422ToP210, I444ToP410, and P410ToARGB/AR30Matrix.

Add NV16Scale (same path as NV12Scale: ScalePlane + UVScale).
Add P010Scale, P210Scale, and P410Scale: 10-bit samples stay in the MSBs, so Y/UV convert to 10-bit LSB, ScalePlane_16, then back to MSB.

UVScale_16 cannot general-scale, so UV is split, scaled as planes, and merged.

Packed-plane layout, odd-width strides, ConvertTo/From round-trips, and
the existing scale factor/size/swap tests cover the new APIs.

Bug: 537818862
Change-Id: I1ae5e6cad5e6d83acf1d0df69f94c23688bbe0e8
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8346569
Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-09-23 20:43:22 -07:00

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/*
* Copyright 2011 The LibYuv Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "libyuv/convert_argb.h"
#include <limits.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "libyuv/cpu_id.h"
#ifdef HAVE_JPEG
#include "libyuv/mjpeg_decoder.h"
#endif
#include "libyuv/rotate_argb.h"
#include "libyuv/row.h"
#include "libyuv/video_common.h"
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
static int NV16ToARGB(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_uv,
int src_stride_uv,
uint8_t* dst_argb,
int dst_stride_argb,
int width,
int height) {
int y;
void (*NV12ToARGBRow)(
const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) = NV12ToARGBRow_C;
if (!src_y || !src_uv || !dst_argb || width <= 0 || height == 0 ||
height == INT_MIN) {
return -1;
}
if (height < 0) {
height = -height;
dst_argb = dst_argb + (ptrdiff_t)(height - 1) * dst_stride_argb;
dst_stride_argb = -dst_stride_argb;
}
#if defined(HAS_NV12TOARGBROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
NV12ToARGBRow = NV12ToARGBRow_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
NV12ToARGBRow = NV12ToARGBRow_SSSE3;
}
}
#endif
#if defined(HAS_NV12TOARGBROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
NV12ToARGBRow = NV12ToARGBRow_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
NV12ToARGBRow = NV12ToARGBRow_AVX2;
}
}
#endif
#if defined(HAS_NV12TOARGBROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
NV12ToARGBRow = NV12ToARGBRow_Any_NEON;
if (IS_ALIGNED(width, 8)) {
NV12ToARGBRow = NV12ToARGBRow_NEON;
}
}
#endif
#if defined(HAS_NV12TOARGBROW_SVE2)
if (TestCpuFlag(kCpuHasSVE2)) {
NV12ToARGBRow = NV12ToARGBRow_SVE2;
}
#endif
#if defined(HAS_NV12TOARGBROW_SME)
if (TestCpuFlag(kCpuHasSME)) {
NV12ToARGBRow = NV12ToARGBRow_SME;
}
#endif
#if defined(HAS_NV12TOARGBROW_LSX)
if (TestCpuFlag(kCpuHasLSX)) {
NV12ToARGBRow = NV12ToARGBRow_Any_LSX;
if (IS_ALIGNED(width, 8)) {
NV12ToARGBRow = NV12ToARGBRow_LSX;
}
}
#endif
#if defined(HAS_NV12TOARGBROW_LASX)
if (TestCpuFlag(kCpuHasLASX)) {
NV12ToARGBRow = NV12ToARGBRow_Any_LASX;
if (IS_ALIGNED(width, 16)) {
NV12ToARGBRow = NV12ToARGBRow_LASX;
}
}
#endif
#if defined(HAS_NV12TOARGBROW_RVV)
if (TestCpuFlag(kCpuHasRVV)) {
NV12ToARGBRow = NV12ToARGBRow_RVV;
}
#endif
for (y = 0; y < height; ++y) {
NV12ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
dst_argb += dst_stride_argb;
src_y += src_stride_y;
src_uv += src_stride_uv;
}
return 0;
}
static int NV24ToARGB(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_uv,
int src_stride_uv,
uint8_t* dst_argb,
int dst_stride_argb,
int width,
int height) {
int y;
void (*I444ToARGBRow)(
const uint8_t* y_buf, const uint8_t* u_buf, const uint8_t* v_buf,
uint8_t* rgb_buf, const struct YuvConstants* yuvconstants, int width) =
I444ToARGBRow_C;
void (*SplitUVRow)(const uint8_t* src_uv, uint8_t* dst_u, uint8_t* dst_v,
int width) = SplitUVRow_C;
if (!src_y || !src_uv || !dst_argb || width <= 0 || height == 0 ||
height == INT_MIN) {
return -1;
}
if (height < 0) {
height = -height;
dst_argb = dst_argb + (ptrdiff_t)(height - 1) * dst_stride_argb;
dst_stride_argb = -dst_stride_argb;
}
#if defined(HAS_I444TOARGBROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I444ToARGBRow = I444ToARGBRow_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I444ToARGBRow = I444ToARGBRow_SSSE3;
}
}
#endif
#if defined(HAS_I444TOARGBROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I444ToARGBRow = I444ToARGBRow_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I444ToARGBRow = I444ToARGBRow_AVX2;
}
}
#endif
#if defined(HAS_I444TOARGBROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I444ToARGBRow = I444ToARGBRow_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I444ToARGBRow = I444ToARGBRow_NEON;
}
}
#endif
#if defined(HAS_I444TOARGBROW_SVE2)
if (TestCpuFlag(kCpuHasSVE2)) {
I444ToARGBRow = I444ToARGBRow_SVE2;
}
#endif
#if defined(HAS_I444TOARGBROW_SME)
if (TestCpuFlag(kCpuHasSME)) {
I444ToARGBRow = I444ToARGBRow_SME;
}
#endif
#if defined(HAS_I444TOARGBROW_LSX)
if (TestCpuFlag(kCpuHasLSX)) {
I444ToARGBRow = I444ToARGBRow_Any_LSX;
if (IS_ALIGNED(width, 8)) {
I444ToARGBRow = I444ToARGBRow_LSX;
}
}
#endif
#if defined(HAS_I444TOARGBROW_LASX)
if (TestCpuFlag(kCpuHasLASX)) {
I444ToARGBRow = I444ToARGBRow_Any_LASX;
if (IS_ALIGNED(width, 16)) {
I444ToARGBRow = I444ToARGBRow_LASX;
}
}
#endif
#if defined(HAS_I444TOARGBROW_RVV)
if (TestCpuFlag(kCpuHasRVV)) {
I444ToARGBRow = I444ToARGBRow_RVV;
}
#endif
#if defined(HAS_SPLITUVROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
SplitUVRow = SplitUVRow_Any_SSE2;
if (IS_ALIGNED(width, 16)) {
SplitUVRow = SplitUVRow_SSE2;
}
}
#endif
#if defined(HAS_SPLITUVROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
SplitUVRow = SplitUVRow_Any_AVX2;
if (IS_ALIGNED(width, 32)) {
SplitUVRow = SplitUVRow_AVX2;
}
}
#endif
#if defined(HAS_SPLITUVROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
SplitUVRow = SplitUVRow_Any_NEON;
if (IS_ALIGNED(width, 16)) {
SplitUVRow = SplitUVRow_NEON;
}
}
#endif
#if defined(HAS_SPLITUVROW_RVV)
if (TestCpuFlag(kCpuHasRVV)) {
SplitUVRow = SplitUVRow_RVV;
}
#endif
align_buffer_64(row_u, width);
align_buffer_64(row_v, width);
if (!row_u || !row_v) {
free_aligned_buffer_64(row_u);
free_aligned_buffer_64(row_v);
return 1;
}
for (y = 0; y < height; ++y) {
SplitUVRow(src_uv, row_u, row_v, width);
I444ToARGBRow(src_y, row_u, row_v, dst_argb, &kYuvI601Constants, width);
dst_argb += dst_stride_argb;
src_y += src_stride_y;
src_uv += src_stride_uv;
}
free_aligned_buffer_64(row_u);
free_aligned_buffer_64(row_v);
return 0;
}
// Convert camera sample to ARGB with cropping, rotation and vertical flip.
// src_width is used for source stride computation
// src_height is used to compute location of planes, and indicate inversion
// sample_size is measured in bytes and is the size of the frame.
// With MJPEG it is the compressed size of the frame.
// TODO(fbarchard): Add the following:
// H010ToARGB
// I010ToARGB
LIBYUV_API
int ConvertToARGB(const uint8_t* sample,
size_t sample_size,
uint8_t* dst_argb,
int dst_stride_argb,
int crop_x,
int crop_y,
int src_width,
int src_height,
int crop_width,
int crop_height,
enum RotationMode rotation,
uint32_t fourcc) {
if (src_height == INT_MIN || crop_height == INT_MIN) {
return -1;
}
int abs_src_height = (src_height < 0) ? -src_height : src_height;
int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
if (dst_argb == NULL || sample == NULL || src_width <= 0 ||
src_width > INT_MAX / 4 || crop_width <= 0 || crop_width > INT_MAX / 4 ||
src_height == 0 || crop_height == 0 || crop_x < 0 || crop_y < 0 ||
crop_width > src_width || crop_x > src_width - crop_width ||
abs_crop_height > abs_src_height ||
crop_y > abs_src_height - abs_crop_height) {
return -1;
}
uint32_t format = CanonicalFourCC(fourcc);
int aligned_src_width = (src_width + 1) & ~1;
const uint8_t* src;
const uint8_t* src_uv;
int r = 0;
// One pass rotation is available for some formats. For the rest, convert
// to ARGB (with optional vertical flipping) into a temporary ARGB buffer,
// and then rotate the ARGB to the final destination buffer.
// For in-place conversion, if destination dst_argb is same as source sample,
// also enable temporary buffer.
int need_buf =
(rotation && format != FOURCC_ARGB) || dst_argb == sample;
uint8_t* dest_argb = dst_argb;
int dest_dst_stride_argb = dst_stride_argb;
uint8_t* rotate_buffer = NULL;
int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
if (src_height < 0) {
inv_crop_height = -inv_crop_height;
}
if (need_buf) {
const uint64_t rotate_buffer_size =
(uint64_t)crop_width * 4 * abs_crop_height;
#if UINT64_MAX > SIZE_MAX
if (rotate_buffer_size > SIZE_MAX) {
return -1; // Invalid size.
}
#endif
rotate_buffer = (uint8_t*)malloc((size_t)rotate_buffer_size);
if (!rotate_buffer) {
return 1; // Out of memory runtime error.
}
dst_argb = rotate_buffer;
dst_stride_argb = crop_width * 4;
}
switch (format) {
// Single plane formats
case FOURCC_YUY2:
src = sample + ((ptrdiff_t)aligned_src_width * crop_y + crop_x) * 2;
r = YUY2ToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
break;
case FOURCC_UYVY:
src = sample + ((ptrdiff_t)aligned_src_width * crop_y + crop_x) * 2;
r = UYVYToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
break;
case FOURCC_24BG:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 3;
r = RGB24ToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_RAW:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 3;
r = RAWToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_ARGB:
if (!need_buf && !rotation) {
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = ARGBToARGB(src, src_width * 4, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
}
break;
case FOURCC_BGRA:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = BGRAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_ABGR:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = ABGRToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_RGBA:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = RGBAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_AR30:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = AR30ToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_AB30:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = AB30ToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_RGBP:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 2;
r = RGB565ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
break;
case FOURCC_RGBO:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 2;
r = ARGB1555ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
break;
case FOURCC_R444:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 2;
r = ARGB4444ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
crop_width, inv_crop_height);
break;
case FOURCC_I400:
src = sample + (ptrdiff_t)src_width * crop_y + crop_x;
r = I400ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
case FOURCC_J400:
src = sample + (ptrdiff_t)src_width * crop_y + crop_x;
r = J400ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
inv_crop_height);
break;
// Biplanar formats
case FOURCC_NV12:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
src_uv = sample +
aligned_src_width * ((ptrdiff_t)abs_src_height + crop_y / 2) +
crop_x;
r = NV12ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
dst_stride_argb, crop_width, inv_crop_height);
break;
case FOURCC_NV21:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
src_uv = sample +
aligned_src_width * ((ptrdiff_t)abs_src_height + crop_y / 2) +
crop_x;
// Call NV12 but with u and v parameters swapped.
r = NV21ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
dst_stride_argb, crop_width, inv_crop_height);
break;
case FOURCC_NV16:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
src_uv = sample +
aligned_src_width * ((ptrdiff_t)abs_src_height + crop_y) +
(crop_x & ~1);
r = NV16ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
dst_stride_argb, crop_width, inv_crop_height);
break;
case FOURCC_NV24:
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
src_uv = sample +
(ptrdiff_t)aligned_src_width * abs_src_height +
(ptrdiff_t)aligned_src_width * 2 * crop_y +
(ptrdiff_t)crop_x * 2;
r = NV24ToARGB(src, src_width, src_uv, aligned_src_width * 2, dst_argb,
dst_stride_argb, crop_width, inv_crop_height);
break;
case FOURCC_P010: {
const uint16_t* src16 = (const uint16_t*)sample;
const uint16_t* src_y16 =
src16 + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint16_t* src_uv16 =
src16 + ((ptrdiff_t)src_width * abs_src_height) +
((ptrdiff_t)(crop_y / 2) * aligned_src_width) + ((crop_x / 2) * 2);
r = P010ToARGBMatrix(src_y16, src_width, src_uv16, aligned_src_width,
dst_argb, dst_stride_argb, &kYuvI601Constants,
crop_width, inv_crop_height);
break;
}
case FOURCC_P210: {
const uint16_t* src16 = (const uint16_t*)sample;
const uint16_t* src_y16 =
src16 + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint16_t* src_uv16 =
src16 + ((ptrdiff_t)src_width * abs_src_height) +
((ptrdiff_t)crop_y * aligned_src_width) + ((crop_x / 2) * 2);
r = P210ToARGBMatrix(src_y16, src_width, src_uv16, aligned_src_width,
dst_argb, dst_stride_argb, &kYuvI601Constants,
crop_width, inv_crop_height);
break;
}
case FOURCC_P410: {
const uint16_t* src16 = (const uint16_t*)sample;
const uint16_t* src_y16 =
src16 + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint16_t* src_uv16 =
src16 + ((ptrdiff_t)src_width * abs_src_height) +
((ptrdiff_t)crop_y * src_width * 2) + crop_x * 2;
r = P410ToARGBMatrix(src_y16, src_width, src_uv16, src_width * 2,
dst_argb, dst_stride_argb, &kYuvI601Constants,
crop_width, inv_crop_height);
break;
}
// Triplanar formats
case FOURCC_I420:
case FOURCC_YV12: {
const uint8_t* src_y = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint8_t* src_u;
const uint8_t* src_v;
int halfwidth = (src_width + 1) / 2;
int halfheight = (abs_src_height + 1) / 2;
if (format == FOURCC_YV12) {
src_v = sample + (ptrdiff_t)src_width * abs_src_height +
((ptrdiff_t)halfwidth * crop_y + crop_x) / 2;
src_u = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)halfheight + crop_y / 2) + crop_x / 2;
} else {
src_u = sample + (ptrdiff_t)src_width * abs_src_height +
((ptrdiff_t)halfwidth * crop_y + crop_x) / 2;
src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)halfheight + crop_y / 2) + crop_x / 2;
}
r = I420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_J420: {
int halfwidth = (src_width + 1) / 2;
int halfheight = (abs_src_height + 1) / 2;
const uint8_t* src_y = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
((ptrdiff_t)halfwidth * crop_y + crop_x) / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)halfheight + crop_y / 2) +
crop_x / 2;
r = J420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_H420: {
int halfwidth = (src_width + 1) / 2;
int halfheight = (abs_src_height + 1) / 2;
const uint8_t* src_y = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
((ptrdiff_t)halfwidth * crop_y + crop_x) / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)halfheight + crop_y / 2) +
crop_x / 2;
r = H420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_U420: {
int halfwidth = (src_width + 1) / 2;
int halfheight = (abs_src_height + 1) / 2;
const uint8_t* src_y = sample + ((ptrdiff_t)src_width * crop_y + crop_x);
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
((ptrdiff_t)halfwidth * crop_y + crop_x) / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)halfheight + crop_y / 2) +
crop_x / 2;
r = U420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_I422:
case FOURCC_YV16: {
int halfwidth = (src_width + 1) / 2;
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u;
const uint8_t* src_v;
if (format == FOURCC_YV16) {
src_v = sample + (ptrdiff_t)src_width * abs_src_height +
(ptrdiff_t)halfwidth * crop_y + crop_x / 2;
src_u = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)abs_src_height + crop_y) + crop_x / 2;
} else {
src_u = sample + (ptrdiff_t)src_width * abs_src_height +
(ptrdiff_t)halfwidth * crop_y + crop_x / 2;
src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)abs_src_height + crop_y) + crop_x / 2;
}
r = I422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_J422: {
int halfwidth = (src_width + 1) / 2;
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
(ptrdiff_t)halfwidth * crop_y + crop_x / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)abs_src_height + crop_y) +
crop_x / 2;
r = J422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_H422: {
int halfwidth = (src_width + 1) / 2;
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
(ptrdiff_t)halfwidth * crop_y + crop_x / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)abs_src_height + crop_y) +
crop_x / 2;
r = H422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_U422: {
int halfwidth = (src_width + 1) / 2;
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u = sample + (ptrdiff_t)src_width * abs_src_height +
(ptrdiff_t)halfwidth * crop_y + crop_x / 2;
const uint8_t* src_v = sample + (ptrdiff_t)src_width * abs_src_height +
halfwidth * ((ptrdiff_t)abs_src_height + crop_y) +
crop_x / 2;
r = H422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_I444:
case FOURCC_YV24: {
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u;
const uint8_t* src_v;
if (format == FOURCC_YV24) {
src_v =
sample + src_width * ((ptrdiff_t)abs_src_height + crop_y) + crop_x;
src_u = sample + src_width * ((ptrdiff_t)abs_src_height * 2 + crop_y) +
crop_x;
} else {
src_u =
sample + src_width * ((ptrdiff_t)abs_src_height + crop_y) + crop_x;
src_v = sample + src_width * ((ptrdiff_t)abs_src_height * 2 + crop_y) +
crop_x;
}
r = I444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_J444: {
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u =
sample + src_width * ((ptrdiff_t)abs_src_height + crop_y) + crop_x;
const uint8_t* src_v =
sample + src_width * ((ptrdiff_t)abs_src_height * 2 + crop_y) +
crop_x;
r = J444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_H444: {
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u =
sample + src_width * ((ptrdiff_t)abs_src_height + crop_y) + crop_x;
const uint8_t* src_v =
sample + src_width * ((ptrdiff_t)abs_src_height * 2 + crop_y) +
crop_x;
r = H444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
case FOURCC_U444: {
const uint8_t* src_y = sample + (ptrdiff_t)src_width * crop_y + crop_x;
const uint8_t* src_u =
sample + src_width * ((ptrdiff_t)abs_src_height + crop_y) + crop_x;
const uint8_t* src_v =
sample + src_width * ((ptrdiff_t)abs_src_height * 2 + crop_y) +
crop_x;
r = U444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
dst_argb, dst_stride_argb, crop_width, inv_crop_height);
break;
}
#ifdef HAVE_JPEG
case FOURCC_MJPG:
r = MJPGToARGB(sample, sample_size, dst_argb, dst_stride_argb, src_width,
abs_src_height, crop_width, inv_crop_height);
break;
#endif
default:
r = -1; // unknown fourcc - return failure code.
}
if (need_buf) {
if (!r) {
r = ARGBRotate(dst_argb, dst_stride_argb, dest_argb, dest_dst_stride_argb,
crop_width, abs_crop_height, rotation);
}
free(rotate_buffer);
} else if (rotation) {
src = sample + ((ptrdiff_t)src_width * crop_y + crop_x) * 4;
r = ARGBRotate(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
inv_crop_height, rotation);
}
return r;
}
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif
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