2114024ab1
Thanks to: https://github.com/DrKLO/Telegram/pull/1374 https://github.com/DrKLO/Telegram/pull/1383
307 lines
11 KiB
C++
307 lines
11 KiB
C++
/*
|
|
* 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 "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
|
|
|
|
// Convert camera sample to I420 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.
|
|
LIBYUV_API
|
|
int ConvertToARGB(const uint8* sample, size_t sample_size,
|
|
uint8* crop_argb, int argb_stride,
|
|
int crop_x, int crop_y,
|
|
int src_width, int src_height,
|
|
int crop_width, int crop_height,
|
|
enum RotationMode rotation,
|
|
uint32 fourcc) {
|
|
uint32 format = CanonicalFourCC(fourcc);
|
|
int aligned_src_width = (src_width + 1) & ~1;
|
|
const uint8* src;
|
|
const uint8* src_uv;
|
|
int abs_src_height = (src_height < 0) ? -src_height : src_height;
|
|
int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
|
|
int r = 0;
|
|
|
|
// One pass rotation is available for some formats. For the rest, convert
|
|
// to I420 (with optional vertical flipping) into a temporary I420 buffer,
|
|
// and then rotate the I420 to the final destination buffer.
|
|
// For in-place conversion, if destination crop_argb is same as source sample,
|
|
// also enable temporary buffer.
|
|
LIBYUV_BOOL need_buf = (rotation && format != FOURCC_ARGB) ||
|
|
crop_argb == sample;
|
|
uint8* tmp_argb = crop_argb;
|
|
int tmp_argb_stride = argb_stride;
|
|
uint8* rotate_buffer = NULL;
|
|
int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
|
|
|
|
if (crop_argb == NULL || sample == NULL ||
|
|
src_width <= 0 || crop_width <= 0 ||
|
|
src_height == 0 || crop_height == 0) {
|
|
return -1;
|
|
}
|
|
if (src_height < 0) {
|
|
inv_crop_height = -inv_crop_height;
|
|
}
|
|
|
|
if (need_buf) {
|
|
int argb_size = crop_width * abs_crop_height * 4;
|
|
rotate_buffer = (uint8*)malloc(argb_size);
|
|
if (!rotate_buffer) {
|
|
return 1; // Out of memory runtime error.
|
|
}
|
|
crop_argb = rotate_buffer;
|
|
argb_stride = crop_width;
|
|
}
|
|
|
|
switch (format) {
|
|
// Single plane formats
|
|
case FOURCC_YUY2:
|
|
src = sample + (aligned_src_width * crop_y + crop_x) * 2;
|
|
r = YUY2ToARGB(src, aligned_src_width * 2,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_UYVY:
|
|
src = sample + (aligned_src_width * crop_y + crop_x) * 2;
|
|
r = UYVYToARGB(src, aligned_src_width * 2,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_24BG:
|
|
src = sample + (src_width * crop_y + crop_x) * 3;
|
|
r = RGB24ToARGB(src, src_width * 3,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_RAW:
|
|
src = sample + (src_width * crop_y + crop_x) * 3;
|
|
r = RAWToARGB(src, src_width * 3,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_ARGB:
|
|
src = sample + (src_width * crop_y + crop_x) * 4;
|
|
r = ARGBToARGB(src, src_width * 4,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_BGRA:
|
|
src = sample + (src_width * crop_y + crop_x) * 4;
|
|
r = BGRAToARGB(src, src_width * 4,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_ABGR:
|
|
src = sample + (src_width * crop_y + crop_x) * 4;
|
|
r = ABGRToARGB(src, src_width * 4,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_RGBA:
|
|
src = sample + (src_width * crop_y + crop_x) * 4;
|
|
r = RGBAToARGB(src, src_width * 4,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_RGBP:
|
|
src = sample + (src_width * crop_y + crop_x) * 2;
|
|
r = RGB565ToARGB(src, src_width * 2,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_RGBO:
|
|
src = sample + (src_width * crop_y + crop_x) * 2;
|
|
r = ARGB1555ToARGB(src, src_width * 2,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_R444:
|
|
src = sample + (src_width * crop_y + crop_x) * 2;
|
|
r = ARGB4444ToARGB(src, src_width * 2,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_I400:
|
|
src = sample + src_width * crop_y + crop_x;
|
|
r = I400ToARGB(src, src_width,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
|
|
// Biplanar formats
|
|
case FOURCC_NV12:
|
|
src = sample + (src_width * crop_y + crop_x);
|
|
src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x;
|
|
r = NV12ToARGB(src, src_width,
|
|
src_uv, aligned_src_width,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_NV21:
|
|
src = sample + (src_width * crop_y + crop_x);
|
|
src_uv = sample + aligned_src_width * (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,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
case FOURCC_M420:
|
|
src = sample + (src_width * crop_y) * 12 / 8 + crop_x;
|
|
r = M420ToARGB(src, src_width,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
// Triplanar formats
|
|
case FOURCC_I420:
|
|
case FOURCC_YU12:
|
|
case FOURCC_YV12: {
|
|
const uint8* src_y = sample + (src_width * crop_y + crop_x);
|
|
const uint8* src_u;
|
|
const uint8* src_v;
|
|
int halfwidth = (src_width + 1) / 2;
|
|
int halfheight = (abs_src_height + 1) / 2;
|
|
if (format == FOURCC_YV12) {
|
|
src_v = sample + src_width * abs_src_height +
|
|
(halfwidth * crop_y + crop_x) / 2;
|
|
src_u = sample + src_width * abs_src_height +
|
|
halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
|
|
} else {
|
|
src_u = sample + src_width * abs_src_height +
|
|
(halfwidth * crop_y + crop_x) / 2;
|
|
src_v = sample + src_width * abs_src_height +
|
|
halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
|
|
}
|
|
r = I420ToARGB(src_y, src_width,
|
|
src_u, halfwidth,
|
|
src_v, halfwidth,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
}
|
|
|
|
case FOURCC_J420: {
|
|
const uint8* src_y = sample + (src_width * crop_y + crop_x);
|
|
const uint8* src_u;
|
|
const uint8* src_v;
|
|
int halfwidth = (src_width + 1) / 2;
|
|
int halfheight = (abs_src_height + 1) / 2;
|
|
src_u = sample + src_width * abs_src_height +
|
|
(halfwidth * crop_y + crop_x) / 2;
|
|
src_v = sample + src_width * abs_src_height +
|
|
halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
|
|
r = J420ToARGB(src_y, src_width,
|
|
src_u, halfwidth,
|
|
src_v, halfwidth,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
}
|
|
|
|
case FOURCC_I422:
|
|
case FOURCC_YV16: {
|
|
const uint8* src_y = sample + src_width * crop_y + crop_x;
|
|
const uint8* src_u;
|
|
const uint8* src_v;
|
|
int halfwidth = (src_width + 1) / 2;
|
|
if (format == FOURCC_YV16) {
|
|
src_v = sample + src_width * abs_src_height +
|
|
halfwidth * crop_y + crop_x / 2;
|
|
src_u = sample + src_width * abs_src_height +
|
|
halfwidth * (abs_src_height + crop_y) + crop_x / 2;
|
|
} else {
|
|
src_u = sample + src_width * abs_src_height +
|
|
halfwidth * crop_y + crop_x / 2;
|
|
src_v = sample + src_width * abs_src_height +
|
|
halfwidth * (abs_src_height + crop_y) + crop_x / 2;
|
|
}
|
|
r = I422ToARGB(src_y, src_width,
|
|
src_u, halfwidth,
|
|
src_v, halfwidth,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
}
|
|
case FOURCC_I444:
|
|
case FOURCC_YV24: {
|
|
const uint8* src_y = sample + src_width * crop_y + crop_x;
|
|
const uint8* src_u;
|
|
const uint8* src_v;
|
|
if (format == FOURCC_YV24) {
|
|
src_v = sample + src_width * (abs_src_height + crop_y) + crop_x;
|
|
src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
|
|
} else {
|
|
src_u = sample + src_width * (abs_src_height + crop_y) + crop_x;
|
|
src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
|
|
}
|
|
r = I444ToARGB(src_y, src_width,
|
|
src_u, src_width,
|
|
src_v, src_width,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
}
|
|
case FOURCC_I411: {
|
|
int quarterwidth = (src_width + 3) / 4;
|
|
const uint8* src_y = sample + src_width * crop_y + crop_x;
|
|
const uint8* src_u = sample + src_width * abs_src_height +
|
|
quarterwidth * crop_y + crop_x / 4;
|
|
const uint8* src_v = sample + src_width * abs_src_height +
|
|
quarterwidth * (abs_src_height + crop_y) + crop_x / 4;
|
|
r = I411ToARGB(src_y, src_width,
|
|
src_u, quarterwidth,
|
|
src_v, quarterwidth,
|
|
crop_argb, argb_stride,
|
|
crop_width, inv_crop_height);
|
|
break;
|
|
}
|
|
#ifdef HAVE_JPEG
|
|
case FOURCC_MJPG:
|
|
r = MJPGToARGB(sample, sample_size,
|
|
crop_argb, argb_stride,
|
|
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(crop_argb, argb_stride,
|
|
tmp_argb, tmp_argb_stride,
|
|
crop_width, abs_crop_height, rotation);
|
|
}
|
|
free(rotate_buffer);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|