mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1177 lines
46 KiB
1177 lines
46 KiB
/* |
|
* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* Libav is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with Libav; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include <inttypes.h> |
|
#include <string.h> |
|
#include <math.h> |
|
#include <stdio.h> |
|
#include "config.h" |
|
#include <assert.h> |
|
#include "swscale.h" |
|
#include "swscale_internal.h" |
|
#include "rgb2rgb.h" |
|
#include "libavutil/intreadwrite.h" |
|
#include "libavutil/cpu.h" |
|
#include "libavutil/avutil.h" |
|
#include "libavutil/mathematics.h" |
|
#include "libavutil/bswap.h" |
|
#include "libavutil/pixdesc.h" |
|
|
|
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_1)[8][8] = { |
|
{ 0, 1, 0, 1, 0, 1, 0, 1,}, |
|
{ 1, 0, 1, 0, 1, 0, 1, 0,}, |
|
{ 0, 1, 0, 1, 0, 1, 0, 1,}, |
|
{ 1, 0, 1, 0, 1, 0, 1, 0,}, |
|
{ 0, 1, 0, 1, 0, 1, 0, 1,}, |
|
{ 1, 0, 1, 0, 1, 0, 1, 0,}, |
|
{ 0, 1, 0, 1, 0, 1, 0, 1,}, |
|
{ 1, 0, 1, 0, 1, 0, 1, 0,}, |
|
}; |
|
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_3)[8][8] = { |
|
{ 1, 2, 1, 2, 1, 2, 1, 2,}, |
|
{ 3, 0, 3, 0, 3, 0, 3, 0,}, |
|
{ 1, 2, 1, 2, 1, 2, 1, 2,}, |
|
{ 3, 0, 3, 0, 3, 0, 3, 0,}, |
|
{ 1, 2, 1, 2, 1, 2, 1, 2,}, |
|
{ 3, 0, 3, 0, 3, 0, 3, 0,}, |
|
{ 1, 2, 1, 2, 1, 2, 1, 2,}, |
|
{ 3, 0, 3, 0, 3, 0, 3, 0,}, |
|
}; |
|
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_64)[8][8] = { |
|
{ 18, 34, 30, 46, 17, 33, 29, 45,}, |
|
{ 50, 2, 62, 14, 49, 1, 61, 13,}, |
|
{ 26, 42, 22, 38, 25, 41, 21, 37,}, |
|
{ 58, 10, 54, 6, 57, 9, 53, 5,}, |
|
{ 16, 32, 28, 44, 19, 35, 31, 47,}, |
|
{ 48, 0, 60, 12, 51, 3, 63, 15,}, |
|
{ 24, 40, 20, 36, 27, 43, 23, 39,}, |
|
{ 56, 8, 52, 4, 59, 11, 55, 7,}, |
|
}; |
|
extern const uint8_t dither_8x8_128[8][8]; |
|
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_256)[8][8] = { |
|
{ 72, 136, 120, 184, 68, 132, 116, 180,}, |
|
{ 200, 8, 248, 56, 196, 4, 244, 52,}, |
|
{ 104, 168, 88, 152, 100, 164, 84, 148,}, |
|
{ 232, 40, 216, 24, 228, 36, 212, 20,}, |
|
{ 64, 128, 102, 176, 76, 140, 124, 188,}, |
|
{ 192, 0, 240, 48, 204, 12, 252, 60,}, |
|
{ 96, 160, 80, 144, 108, 172, 92, 156,}, |
|
{ 224, 32, 208, 16, 236, 44, 220, 28,}, |
|
}; |
|
|
|
#define RGB2YUV_SHIFT 15 |
|
#define BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define BV (-(int) (0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define BU ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define GY ( (int) (0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define GV (-(int) (0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define GU (-(int) (0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define RY ( (int) (0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define RV ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
#define RU (-(int) (0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
|
|
|
static void fillPlane(uint8_t *plane, int stride, int width, int height, int y, |
|
uint8_t val) |
|
{ |
|
int i; |
|
uint8_t *ptr = plane + stride * y; |
|
for (i = 0; i < height; i++) { |
|
memset(ptr, val, width); |
|
ptr += stride; |
|
} |
|
} |
|
|
|
static void copyPlane(const uint8_t *src, int srcStride, |
|
int srcSliceY, int srcSliceH, int width, |
|
uint8_t *dst, int dstStride) |
|
{ |
|
dst += dstStride * srcSliceY; |
|
if (dstStride == srcStride && srcStride > 0) { |
|
memcpy(dst, src, srcSliceH * dstStride); |
|
} else { |
|
int i; |
|
for (i = 0; i < srcSliceH; i++) { |
|
memcpy(dst, src, width); |
|
src += srcStride; |
|
dst += dstStride; |
|
} |
|
} |
|
} |
|
|
|
static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, |
|
int srcSliceH, uint8_t *dstParam[], |
|
int dstStride[]) |
|
{ |
|
uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2; |
|
|
|
copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, |
|
dstParam[0], dstStride[0]); |
|
|
|
if (c->dstFormat == AV_PIX_FMT_NV12) |
|
interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2, |
|
srcStride[1], srcStride[2], dstStride[0]); |
|
else |
|
interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2, |
|
srcStride[2], srcStride[1], dstStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; |
|
|
|
yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], |
|
srcStride[1], dstStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; |
|
|
|
yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], |
|
srcStride[1], dstStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; |
|
|
|
yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], |
|
srcStride[1], dstStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; |
|
|
|
yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], |
|
srcStride[1], dstStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; |
|
uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2; |
|
uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2; |
|
|
|
yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], |
|
dstStride[1], srcStride[0]); |
|
|
|
if (dstParam[3]) |
|
fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; |
|
uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY; |
|
uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY; |
|
|
|
yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], |
|
dstStride[1], srcStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; |
|
uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2; |
|
uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2; |
|
|
|
uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], |
|
dstStride[1], srcStride[0]); |
|
|
|
if (dstParam[3]) |
|
fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dstParam[], int dstStride[]) |
|
{ |
|
uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; |
|
uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY; |
|
uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY; |
|
|
|
uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], |
|
dstStride[1], srcStride[0]); |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, |
|
const uint8_t *palette) |
|
{ |
|
int i; |
|
for (i = 0; i < num_pixels; i++) |
|
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24); |
|
} |
|
|
|
static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels, |
|
const uint8_t *palette) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < num_pixels; i++) |
|
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1]; |
|
} |
|
|
|
static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, |
|
const uint8_t *palette) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < num_pixels; i++) { |
|
//FIXME slow? |
|
dst[0] = palette[src[i << 1] * 4 + 0]; |
|
dst[1] = palette[src[i << 1] * 4 + 1]; |
|
dst[2] = palette[src[i << 1] * 4 + 2]; |
|
dst += 3; |
|
} |
|
} |
|
|
|
static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
int i, j; |
|
int srcstr = srcStride[0] >> 1; |
|
int dststr = dstStride[0] >> 1; |
|
uint16_t *dstPtr = (uint16_t *) dst[0]; |
|
const uint16_t *srcPtr = (const uint16_t *) src[0]; |
|
int min_stride = FFMIN(srcstr, dststr); |
|
|
|
for (i = 0; i < srcSliceH; i++) { |
|
for (j = 0; j < min_stride; j++) { |
|
dstPtr[j] = av_bswap16(srcPtr[j]); |
|
} |
|
srcPtr += srcstr; |
|
dstPtr += dststr; |
|
} |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], |
|
int srcSliceY, int srcSliceH, uint8_t *dst[], |
|
int dstStride[]) |
|
{ |
|
const enum AVPixelFormat srcFormat = c->srcFormat; |
|
const enum AVPixelFormat dstFormat = c->dstFormat; |
|
void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels, |
|
const uint8_t *palette) = NULL; |
|
int i; |
|
uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY; |
|
const uint8_t *srcPtr = src[0]; |
|
|
|
if (srcFormat == AV_PIX_FMT_Y400A) { |
|
switch (dstFormat) { |
|
case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break; |
|
case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break; |
|
case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break; |
|
case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break; |
|
case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break; |
|
case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break; |
|
} |
|
} else if (usePal(srcFormat)) { |
|
switch (dstFormat) { |
|
case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break; |
|
case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break; |
|
case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break; |
|
case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break; |
|
case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break; |
|
case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break; |
|
} |
|
} |
|
|
|
if (!conv) |
|
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", |
|
sws_format_name(srcFormat), sws_format_name(dstFormat)); |
|
else { |
|
for (i = 0; i < srcSliceH; i++) { |
|
conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb); |
|
srcPtr += srcStride[0]; |
|
dstPtr += dstStride[0]; |
|
} |
|
} |
|
|
|
return srcSliceH; |
|
} |
|
|
|
static void gbr24ptopacked24(const uint8_t *src[], int srcStride[], |
|
uint8_t *dst, int dstStride, int srcSliceH, |
|
int width) |
|
{ |
|
int x, h, i; |
|
for (h = 0; h < srcSliceH; h++) { |
|
uint8_t *dest = dst + dstStride * h; |
|
for (x = 0; x < width; x++) { |
|
*dest++ = src[0][x]; |
|
*dest++ = src[1][x]; |
|
*dest++ = src[2][x]; |
|
} |
|
|
|
for (i = 0; i < 3; i++) |
|
src[i] += srcStride[i]; |
|
} |
|
} |
|
|
|
static void gbr24ptopacked32(const uint8_t *src[], int srcStride[], |
|
uint8_t *dst, int dstStride, int srcSliceH, |
|
int alpha_first, int width) |
|
{ |
|
int x, h, i; |
|
for (h = 0; h < srcSliceH; h++) { |
|
uint8_t *dest = dst + dstStride * h; |
|
|
|
if (alpha_first) { |
|
for (x = 0; x < width; x++) { |
|
*dest++ = 0xff; |
|
*dest++ = src[0][x]; |
|
*dest++ = src[1][x]; |
|
*dest++ = src[2][x]; |
|
} |
|
} else { |
|
for (x = 0; x < width; x++) { |
|
*dest++ = src[0][x]; |
|
*dest++ = src[1][x]; |
|
*dest++ = src[2][x]; |
|
*dest++ = 0xff; |
|
} |
|
} |
|
|
|
for (i = 0; i < 3; i++) |
|
src[i] += srcStride[i]; |
|
} |
|
} |
|
|
|
static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
int alpha_first = 0; |
|
if (c->srcFormat != AV_PIX_FMT_GBRP) { |
|
av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n", |
|
av_get_pix_fmt_name(c->srcFormat), |
|
av_get_pix_fmt_name(c->dstFormat)); |
|
return srcSliceH; |
|
} |
|
|
|
switch (c->dstFormat) { |
|
case AV_PIX_FMT_BGR24: |
|
gbr24ptopacked24((const uint8_t *[]) { src[1], src[0], src[2] }, |
|
(int []) { srcStride[1], srcStride[0], srcStride[2] }, |
|
dst[0] + srcSliceY * dstStride[0], dstStride[0], |
|
srcSliceH, c->srcW); |
|
break; |
|
|
|
case AV_PIX_FMT_RGB24: |
|
gbr24ptopacked24((const uint8_t *[]) { src[2], src[0], src[1] }, |
|
(int []) { srcStride[2], srcStride[0], srcStride[1] }, |
|
dst[0] + srcSliceY * dstStride[0], dstStride[0], |
|
srcSliceH, c->srcW); |
|
break; |
|
|
|
case AV_PIX_FMT_ARGB: |
|
alpha_first = 1; |
|
case AV_PIX_FMT_RGBA: |
|
gbr24ptopacked32((const uint8_t *[]) { src[2], src[0], src[1] }, |
|
(int []) { srcStride[2], srcStride[0], srcStride[1] }, |
|
dst[0] + srcSliceY * dstStride[0], dstStride[0], |
|
srcSliceH, alpha_first, c->srcW); |
|
break; |
|
|
|
case AV_PIX_FMT_ABGR: |
|
alpha_first = 1; |
|
case AV_PIX_FMT_BGRA: |
|
gbr24ptopacked32((const uint8_t *[]) { src[1], src[0], src[2] }, |
|
(int []) { srcStride[1], srcStride[0], srcStride[2] }, |
|
dst[0] + srcSliceY * dstStride[0], dstStride[0], |
|
srcSliceH, alpha_first, c->srcW); |
|
break; |
|
|
|
default: |
|
av_log(c, AV_LOG_ERROR, |
|
"unsupported planar RGB conversion %s -> %s\n", |
|
av_get_pix_fmt_name(c->srcFormat), |
|
av_get_pix_fmt_name(c->dstFormat)); |
|
} |
|
|
|
return srcSliceH; |
|
} |
|
|
|
#define isRGBA32(x) ( \ |
|
(x) == AV_PIX_FMT_ARGB \ |
|
|| (x) == AV_PIX_FMT_RGBA \ |
|
|| (x) == AV_PIX_FMT_BGRA \ |
|
|| (x) == AV_PIX_FMT_ABGR \ |
|
) |
|
|
|
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ |
|
typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int); |
|
static rgbConvFn findRgbConvFn(SwsContext *c) |
|
{ |
|
const enum AVPixelFormat srcFormat = c->srcFormat; |
|
const enum AVPixelFormat dstFormat = c->dstFormat; |
|
const int srcId = c->srcFormatBpp; |
|
const int dstId = c->dstFormatBpp; |
|
rgbConvFn conv = NULL; |
|
const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat); |
|
const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat); |
|
|
|
#define IS_NOT_NE(bpp, desc) \ |
|
(((bpp + 7) >> 3) == 2 && \ |
|
(!(desc->flags & PIX_FMT_BE) != !HAVE_BIGENDIAN)) |
|
|
|
/* if this is non-native rgb444/555/565, don't handle it here. */ |
|
if (IS_NOT_NE(srcId, desc_src) || IS_NOT_NE(dstId, desc_dst)) |
|
return NULL; |
|
|
|
#define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst) |
|
|
|
if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) { |
|
if ( CONV_IS(ABGR, RGBA) |
|
|| CONV_IS(ARGB, BGRA) |
|
|| CONV_IS(BGRA, ARGB) |
|
|| CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210; |
|
else if (CONV_IS(ABGR, ARGB) |
|
|| CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321; |
|
else if (CONV_IS(ABGR, BGRA) |
|
|| CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230; |
|
else if (CONV_IS(BGRA, RGBA) |
|
|| CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103; |
|
else if (CONV_IS(BGRA, ABGR) |
|
|| CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012; |
|
} else |
|
/* BGR -> BGR */ |
|
if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) || |
|
(isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) { |
|
switch (srcId | (dstId << 16)) { |
|
case 0x000F000C: conv = rgb12to15; break; |
|
case 0x000F0010: conv = rgb16to15; break; |
|
case 0x000F0018: conv = rgb24to15; break; |
|
case 0x000F0020: conv = rgb32to15; break; |
|
case 0x0010000F: conv = rgb15to16; break; |
|
case 0x00100018: conv = rgb24to16; break; |
|
case 0x00100020: conv = rgb32to16; break; |
|
case 0x0018000F: conv = rgb15to24; break; |
|
case 0x00180010: conv = rgb16to24; break; |
|
case 0x00180020: conv = rgb32to24; break; |
|
case 0x0020000F: conv = rgb15to32; break; |
|
case 0x00200010: conv = rgb16to32; break; |
|
case 0x00200018: conv = rgb24to32; break; |
|
} |
|
} else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) || |
|
(isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { |
|
switch (srcId | (dstId << 16)) { |
|
case 0x000C000C: conv = rgb12tobgr12; break; |
|
case 0x000F000F: conv = rgb15tobgr15; break; |
|
case 0x000F0010: conv = rgb16tobgr15; break; |
|
case 0x000F0018: conv = rgb24tobgr15; break; |
|
case 0x000F0020: conv = rgb32tobgr15; break; |
|
case 0x0010000F: conv = rgb15tobgr16; break; |
|
case 0x00100010: conv = rgb16tobgr16; break; |
|
case 0x00100018: conv = rgb24tobgr16; break; |
|
case 0x00100020: conv = rgb32tobgr16; break; |
|
case 0x0018000F: conv = rgb15tobgr24; break; |
|
case 0x00180010: conv = rgb16tobgr24; break; |
|
case 0x00180018: conv = rgb24tobgr24; break; |
|
case 0x00180020: conv = rgb32tobgr24; break; |
|
case 0x0020000F: conv = rgb15tobgr32; break; |
|
case 0x00200010: conv = rgb16tobgr32; break; |
|
case 0x00200018: conv = rgb24tobgr32; break; |
|
} |
|
} |
|
|
|
return conv; |
|
} |
|
|
|
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ |
|
static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], |
|
int srcSliceY, int srcSliceH, uint8_t *dst[], |
|
int dstStride[]) |
|
|
|
{ |
|
const enum AVPixelFormat srcFormat = c->srcFormat; |
|
const enum AVPixelFormat dstFormat = c->dstFormat; |
|
const int srcBpp = (c->srcFormatBpp + 7) >> 3; |
|
const int dstBpp = (c->dstFormatBpp + 7) >> 3; |
|
rgbConvFn conv = findRgbConvFn(c); |
|
|
|
if (!conv) { |
|
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", |
|
sws_format_name(srcFormat), sws_format_name(dstFormat)); |
|
} else { |
|
const uint8_t *srcPtr = src[0]; |
|
uint8_t *dstPtr = dst[0]; |
|
if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) && |
|
!isRGBA32(dstFormat)) |
|
srcPtr += ALT32_CORR; |
|
|
|
if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && |
|
!isRGBA32(srcFormat)) |
|
dstPtr += ALT32_CORR; |
|
|
|
if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 && |
|
!(srcStride[0] % srcBpp)) |
|
conv(srcPtr, dstPtr + dstStride[0] * srcSliceY, |
|
srcSliceH * srcStride[0]); |
|
else { |
|
int i; |
|
dstPtr += dstStride[0] * srcSliceY; |
|
|
|
for (i = 0; i < srcSliceH; i++) { |
|
conv(srcPtr, dstPtr, c->srcW * srcBpp); |
|
srcPtr += srcStride[0]; |
|
dstPtr += dstStride[0]; |
|
} |
|
} |
|
} |
|
return srcSliceH; |
|
} |
|
|
|
static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
rgb24toyv12( |
|
src[0], |
|
dst[0] + srcSliceY * dstStride[0], |
|
dst[1] + (srcSliceY >> 1) * dstStride[1], |
|
dst[2] + (srcSliceY >> 1) * dstStride[2], |
|
c->srcW, srcSliceH, |
|
dstStride[0], dstStride[1], srcStride[0]); |
|
if (dst[3]) |
|
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
|
return srcSliceH; |
|
} |
|
|
|
static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, |
|
dst[0], dstStride[0]); |
|
|
|
planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW, |
|
srcSliceH >> 2, srcStride[1], dstStride[1]); |
|
planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW, |
|
srcSliceH >> 2, srcStride[2], dstStride[2]); |
|
if (dst[3]) |
|
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
|
return srcSliceH; |
|
} |
|
|
|
/* unscaled copy like stuff (assumes nearly identical formats) */ |
|
static int packedCopyWrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
if (dstStride[0] == srcStride[0] && srcStride[0] > 0) |
|
memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]); |
|
else { |
|
int i; |
|
const uint8_t *srcPtr = src[0]; |
|
uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY; |
|
int length = 0; |
|
|
|
/* universal length finder */ |
|
while (length + c->srcW <= FFABS(dstStride[0]) && |
|
length + c->srcW <= FFABS(srcStride[0])) |
|
length += c->srcW; |
|
assert(length != 0); |
|
|
|
for (i = 0; i < srcSliceH; i++) { |
|
memcpy(dstPtr, srcPtr, length); |
|
srcPtr += srcStride[0]; |
|
dstPtr += dstStride[0]; |
|
} |
|
} |
|
return srcSliceH; |
|
} |
|
|
|
#define clip9(x) av_clip_uintp2(x, 9) |
|
#define clip10(x) av_clip_uintp2(x, 10) |
|
#define DITHER_COPY(dst, dstStride, wfunc, src, srcStride, rfunc, dithers, shift, clip) \ |
|
for (i = 0; i < height; i++) { \ |
|
const uint8_t *dither = dithers[i & 7]; \ |
|
for (j = 0; j < length - 7; j += 8) { \ |
|
wfunc(&dst[j + 0], clip((rfunc(&src[j + 0]) + dither[0]) >> shift)); \ |
|
wfunc(&dst[j + 1], clip((rfunc(&src[j + 1]) + dither[1]) >> shift)); \ |
|
wfunc(&dst[j + 2], clip((rfunc(&src[j + 2]) + dither[2]) >> shift)); \ |
|
wfunc(&dst[j + 3], clip((rfunc(&src[j + 3]) + dither[3]) >> shift)); \ |
|
wfunc(&dst[j + 4], clip((rfunc(&src[j + 4]) + dither[4]) >> shift)); \ |
|
wfunc(&dst[j + 5], clip((rfunc(&src[j + 5]) + dither[5]) >> shift)); \ |
|
wfunc(&dst[j + 6], clip((rfunc(&src[j + 6]) + dither[6]) >> shift)); \ |
|
wfunc(&dst[j + 7], clip((rfunc(&src[j + 7]) + dither[7]) >> shift)); \ |
|
} \ |
|
for (; j < length; j++) \ |
|
wfunc(&dst[j], (rfunc(&src[j]) + dither[j & 7]) >> shift); \ |
|
dst += dstStride; \ |
|
src += srcStride; \ |
|
} |
|
|
|
static int planarCopyWrapper(SwsContext *c, const uint8_t *src[], |
|
int srcStride[], int srcSliceY, int srcSliceH, |
|
uint8_t *dst[], int dstStride[]) |
|
{ |
|
const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat); |
|
const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat); |
|
int plane, i, j; |
|
for (plane = 0; plane < 4; plane++) { |
|
int length = (plane == 0 || plane == 3) ? c->srcW : -((-c->srcW ) >> c->chrDstHSubSample); |
|
int y = (plane == 0 || plane == 3) ? srcSliceY: -((-srcSliceY) >> c->chrDstVSubSample); |
|
int height = (plane == 0 || plane == 3) ? srcSliceH: -((-srcSliceH) >> c->chrDstVSubSample); |
|
const uint8_t *srcPtr = src[plane]; |
|
uint8_t *dstPtr = dst[plane] + dstStride[plane] * y; |
|
|
|
if (!dst[plane]) |
|
continue; |
|
// ignore palette for GRAY8 |
|
if (plane == 1 && !dst[2]) continue; |
|
if (!src[plane] || (plane == 1 && !src[2])) { |
|
if (is16BPS(c->dstFormat)) |
|
length *= 2; |
|
fillPlane(dst[plane], dstStride[plane], length, height, y, |
|
(plane == 3) ? 255 : 128); |
|
} else { |
|
if (is9_OR_10BPS(c->srcFormat)) { |
|
const int src_depth = desc_src->comp[plane].depth_minus1 + 1; |
|
const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1; |
|
const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; |
|
|
|
if (is16BPS(c->dstFormat)) { |
|
uint16_t *dstPtr2 = (uint16_t *) dstPtr; |
|
#define COPY9_OR_10TO16(rfunc, wfunc) \ |
|
for (i = 0; i < height; i++) { \ |
|
for (j = 0; j < length; j++) { \ |
|
int srcpx = rfunc(&srcPtr2[j]); \ |
|
wfunc(&dstPtr2[j], (srcpx << (16 - src_depth)) | (srcpx >> (2 * src_depth - 16))); \ |
|
} \ |
|
dstPtr2 += dstStride[plane] / 2; \ |
|
srcPtr2 += srcStride[plane] / 2; \ |
|
} |
|
if (isBE(c->dstFormat)) { |
|
if (isBE(c->srcFormat)) { |
|
COPY9_OR_10TO16(AV_RB16, AV_WB16); |
|
} else { |
|
COPY9_OR_10TO16(AV_RL16, AV_WB16); |
|
} |
|
} else { |
|
if (isBE(c->srcFormat)) { |
|
COPY9_OR_10TO16(AV_RB16, AV_WL16); |
|
} else { |
|
COPY9_OR_10TO16(AV_RL16, AV_WL16); |
|
} |
|
} |
|
} else if (is9_OR_10BPS(c->dstFormat)) { |
|
uint16_t *dstPtr2 = (uint16_t *) dstPtr; |
|
#define COPY9_OR_10TO9_OR_10(loop) \ |
|
for (i = 0; i < height; i++) { \ |
|
for (j = 0; j < length; j++) { \ |
|
loop; \ |
|
} \ |
|
dstPtr2 += dstStride[plane] / 2; \ |
|
srcPtr2 += srcStride[plane] / 2; \ |
|
} |
|
#define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \ |
|
if (dst_depth > src_depth) { \ |
|
COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \ |
|
wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \ |
|
} else if (dst_depth < src_depth) { \ |
|
DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_1, 1, clip9); \ |
|
} else { \ |
|
COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \ |
|
} |
|
if (isBE(c->dstFormat)) { |
|
if (isBE(c->srcFormat)) { |
|
COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16); |
|
} else { |
|
COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16); |
|
} |
|
} else { |
|
if (isBE(c->srcFormat)) { |
|
COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16); |
|
} else { |
|
COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16); |
|
} |
|
} |
|
} else { |
|
#define W8(a, b) { *(a) = (b); } |
|
#define COPY9_OR_10TO8(rfunc) \ |
|
if (src_depth == 9) { \ |
|
DITHER_COPY(dstPtr, dstStride[plane], W8, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_1, 1, av_clip_uint8); \ |
|
} else { \ |
|
DITHER_COPY(dstPtr, dstStride[plane], W8, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_3, 2, av_clip_uint8); \ |
|
} |
|
if (isBE(c->srcFormat)) { |
|
COPY9_OR_10TO8(AV_RB16); |
|
} else { |
|
COPY9_OR_10TO8(AV_RL16); |
|
} |
|
} |
|
} else if (is9_OR_10BPS(c->dstFormat)) { |
|
const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1; |
|
uint16_t *dstPtr2 = (uint16_t *) dstPtr; |
|
|
|
if (is16BPS(c->srcFormat)) { |
|
const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; |
|
#define COPY16TO9_OR_10(rfunc, wfunc) \ |
|
if (dst_depth == 9) { \ |
|
DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_128, 7, clip9); \ |
|
} else { \ |
|
DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_64, 6, clip10); \ |
|
} |
|
if (isBE(c->dstFormat)) { |
|
if (isBE(c->srcFormat)) { |
|
COPY16TO9_OR_10(AV_RB16, AV_WB16); |
|
} else { |
|
COPY16TO9_OR_10(AV_RL16, AV_WB16); |
|
} |
|
} else { |
|
if (isBE(c->srcFormat)) { |
|
COPY16TO9_OR_10(AV_RB16, AV_WL16); |
|
} else { |
|
COPY16TO9_OR_10(AV_RL16, AV_WL16); |
|
} |
|
} |
|
} else /* 8bit */ { |
|
#define COPY8TO9_OR_10(wfunc) \ |
|
for (i = 0; i < height; i++) { \ |
|
for (j = 0; j < length; j++) { \ |
|
const int srcpx = srcPtr[j]; \ |
|
wfunc(&dstPtr2[j], (srcpx << (dst_depth - 8)) | (srcpx >> (16 - dst_depth))); \ |
|
} \ |
|
dstPtr2 += dstStride[plane] / 2; \ |
|
srcPtr += srcStride[plane]; \ |
|
} |
|
if (isBE(c->dstFormat)) { |
|
COPY8TO9_OR_10(AV_WB16); |
|
} else { |
|
COPY8TO9_OR_10(AV_WL16); |
|
} |
|
} |
|
} else if (is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) { |
|
const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; |
|
#define COPY16TO8(rfunc) \ |
|
DITHER_COPY(dstPtr, dstStride[plane], W8, \ |
|
srcPtr2, srcStride[plane] / 2, rfunc, \ |
|
dither_8x8_256, 8, av_clip_uint8); |
|
if (isBE(c->srcFormat)) { |
|
COPY16TO8(AV_RB16); |
|
} else { |
|
COPY16TO8(AV_RL16); |
|
} |
|
} else if (!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) { |
|
for (i = 0; i < height; i++) { |
|
for (j = 0; j < length; j++) { |
|
dstPtr[ j << 1 ] = srcPtr[j]; |
|
dstPtr[(j << 1) + 1] = srcPtr[j]; |
|
} |
|
srcPtr += srcStride[plane]; |
|
dstPtr += dstStride[plane]; |
|
} |
|
} else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) && |
|
isBE(c->srcFormat) != isBE(c->dstFormat)) { |
|
|
|
for (i = 0; i < height; i++) { |
|
for (j = 0; j < length; j++) |
|
((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]); |
|
srcPtr += srcStride[plane]; |
|
dstPtr += dstStride[plane]; |
|
} |
|
} else if (dstStride[plane] == srcStride[plane] && |
|
srcStride[plane] > 0 && srcStride[plane] == length) { |
|
memcpy(dst[plane] + dstStride[plane] * y, src[plane], |
|
height * dstStride[plane]); |
|
} else { |
|
if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) |
|
length *= 2; |
|
else if (!desc_src->comp[0].depth_minus1) |
|
length >>= 3; // monowhite/black |
|
for (i = 0; i < height; i++) { |
|
memcpy(dstPtr, srcPtr, length); |
|
srcPtr += srcStride[plane]; |
|
dstPtr += dstStride[plane]; |
|
} |
|
} |
|
} |
|
} |
|
return srcSliceH; |
|
} |
|
|
|
|
|
#define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \ |
|
((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \ |
|
(src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE)) |
|
|
|
|
|
void ff_get_unscaled_swscale(SwsContext *c) |
|
{ |
|
const enum AVPixelFormat srcFormat = c->srcFormat; |
|
const enum AVPixelFormat dstFormat = c->dstFormat; |
|
const int flags = c->flags; |
|
const int dstH = c->dstH; |
|
int needsDither; |
|
|
|
needsDither = isAnyRGB(dstFormat) && |
|
c->dstFormatBpp < 24 && |
|
(c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat))); |
|
|
|
/* yv12_to_nv12 */ |
|
if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) && |
|
(dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) { |
|
c->swScale = planarToNv12Wrapper; |
|
} |
|
/* yuv2bgr */ |
|
if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P || |
|
srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) && |
|
!(flags & SWS_ACCURATE_RND) && !(dstH & 1)) { |
|
c->swScale = ff_yuv2rgb_get_func_ptr(c); |
|
} |
|
|
|
if (srcFormat == AV_PIX_FMT_YUV410P && |
|
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) && |
|
!(flags & SWS_BITEXACT)) { |
|
c->swScale = yvu9ToYv12Wrapper; |
|
} |
|
|
|
/* bgr24toYV12 */ |
|
if (srcFormat == AV_PIX_FMT_BGR24 && |
|
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) && |
|
!(flags & SWS_ACCURATE_RND)) |
|
c->swScale = bgr24ToYv12Wrapper; |
|
|
|
/* RGB/BGR -> RGB/BGR (no dither needed forms) */ |
|
if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c) |
|
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)))) |
|
c->swScale= rgbToRgbWrapper; |
|
|
|
if (isPlanarRGB(srcFormat) && isPackedRGB(dstFormat)) |
|
c->swScale = planarRgbToRgbWrapper; |
|
|
|
/* bswap 16 bits per pixel/component packed formats */ |
|
if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) || |
|
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565)) |
|
c->swScale = packed_16bpc_bswap; |
|
|
|
if ((usePal(srcFormat) && ( |
|
dstFormat == AV_PIX_FMT_RGB32 || |
|
dstFormat == AV_PIX_FMT_RGB32_1 || |
|
dstFormat == AV_PIX_FMT_RGB24 || |
|
dstFormat == AV_PIX_FMT_BGR32 || |
|
dstFormat == AV_PIX_FMT_BGR32_1 || |
|
dstFormat == AV_PIX_FMT_BGR24))) |
|
c->swScale = palToRgbWrapper; |
|
|
|
if (srcFormat == AV_PIX_FMT_YUV422P) { |
|
if (dstFormat == AV_PIX_FMT_YUYV422) |
|
c->swScale = yuv422pToYuy2Wrapper; |
|
else if (dstFormat == AV_PIX_FMT_UYVY422) |
|
c->swScale = yuv422pToUyvyWrapper; |
|
} |
|
|
|
/* LQ converters if -sws 0 or -sws 4*/ |
|
if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) { |
|
/* yv12_to_yuy2 */ |
|
if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) { |
|
if (dstFormat == AV_PIX_FMT_YUYV422) |
|
c->swScale = planarToYuy2Wrapper; |
|
else if (dstFormat == AV_PIX_FMT_UYVY422) |
|
c->swScale = planarToUyvyWrapper; |
|
} |
|
} |
|
if (srcFormat == AV_PIX_FMT_YUYV422 && |
|
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P)) |
|
c->swScale = yuyvToYuv420Wrapper; |
|
if (srcFormat == AV_PIX_FMT_UYVY422 && |
|
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P)) |
|
c->swScale = uyvyToYuv420Wrapper; |
|
if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P) |
|
c->swScale = yuyvToYuv422Wrapper; |
|
if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P) |
|
c->swScale = uyvyToYuv422Wrapper; |
|
|
|
/* simple copy */ |
|
if ( srcFormat == dstFormat || |
|
(srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) || |
|
(srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) || |
|
(isPlanarYUV(srcFormat) && isGray(dstFormat)) || |
|
(isPlanarYUV(dstFormat) && isGray(srcFormat)) || |
|
(isGray(dstFormat) && isGray(srcFormat)) || |
|
(isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) && |
|
c->chrDstHSubSample == c->chrSrcHSubSample && |
|
c->chrDstVSubSample == c->chrSrcVSubSample && |
|
dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 && |
|
srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21)) |
|
{ |
|
if (isPacked(c->srcFormat)) |
|
c->swScale = packedCopyWrapper; |
|
else /* Planar YUV or gray */ |
|
c->swScale = planarCopyWrapper; |
|
} |
|
|
|
if (ARCH_BFIN) |
|
ff_bfin_get_unscaled_swscale(c); |
|
if (HAVE_ALTIVEC) |
|
ff_swscale_get_unscaled_altivec(c); |
|
} |
|
|
|
static void reset_ptr(const uint8_t *src[], int format) |
|
{ |
|
if (!isALPHA(format)) |
|
src[3] = NULL; |
|
if (!isPlanar(format)) { |
|
src[3] = src[2] = NULL; |
|
|
|
if (!usePal(format)) |
|
src[1] = NULL; |
|
} |
|
} |
|
|
|
static int check_image_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, |
|
const int linesizes[4]) |
|
{ |
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); |
|
int i; |
|
|
|
for (i = 0; i < 4; i++) { |
|
int plane = desc->comp[i].plane; |
|
if (!data[plane] || !linesizes[plane]) |
|
return 0; |
|
} |
|
|
|
return 1; |
|
} |
|
|
|
/** |
|
* swscale wrapper, so we don't need to export the SwsContext. |
|
* Assumes planar YUV to be in YUV order instead of YVU. |
|
*/ |
|
int attribute_align_arg sws_scale(struct SwsContext *c, |
|
const uint8_t * const srcSlice[], |
|
const int srcStride[], int srcSliceY, |
|
int srcSliceH, uint8_t *const dst[], |
|
const int dstStride[]) |
|
{ |
|
int i; |
|
const uint8_t *src2[4] = { srcSlice[0], srcSlice[1], srcSlice[2], srcSlice[3] }; |
|
uint8_t *dst2[4] = { dst[0], dst[1], dst[2], dst[3] }; |
|
|
|
// do not mess up sliceDir if we have a "trailing" 0-size slice |
|
if (srcSliceH == 0) |
|
return 0; |
|
|
|
if (!check_image_pointers(srcSlice, c->srcFormat, srcStride)) { |
|
av_log(c, AV_LOG_ERROR, "bad src image pointers\n"); |
|
return 0; |
|
} |
|
if (!check_image_pointers(dst, c->dstFormat, dstStride)) { |
|
av_log(c, AV_LOG_ERROR, "bad dst image pointers\n"); |
|
return 0; |
|
} |
|
|
|
if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) { |
|
av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n"); |
|
return 0; |
|
} |
|
if (c->sliceDir == 0) { |
|
if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1; |
|
} |
|
|
|
if (usePal(c->srcFormat)) { |
|
for (i = 0; i < 256; i++) { |
|
int p, r, g, b, y, u, v; |
|
if (c->srcFormat == AV_PIX_FMT_PAL8) { |
|
p = ((const uint32_t *)(srcSlice[1]))[i]; |
|
r = (p >> 16) & 0xFF; |
|
g = (p >> 8) & 0xFF; |
|
b = p & 0xFF; |
|
} else if (c->srcFormat == AV_PIX_FMT_RGB8) { |
|
r = ( i >> 5 ) * 36; |
|
g = ((i >> 2) & 7) * 36; |
|
b = ( i & 3) * 85; |
|
} else if (c->srcFormat == AV_PIX_FMT_BGR8) { |
|
b = ( i >> 6 ) * 85; |
|
g = ((i >> 3) & 7) * 36; |
|
r = ( i & 7) * 36; |
|
} else if (c->srcFormat == AV_PIX_FMT_RGB4_BYTE) { |
|
r = ( i >> 3 ) * 255; |
|
g = ((i >> 1) & 3) * 85; |
|
b = ( i & 1) * 255; |
|
} else if (c->srcFormat == AV_PIX_FMT_GRAY8 || |
|
c->srcFormat == AV_PIX_FMT_Y400A) { |
|
r = g = b = i; |
|
} else { |
|
assert(c->srcFormat == AV_PIX_FMT_BGR4_BYTE); |
|
b = ( i >> 3 ) * 255; |
|
g = ((i >> 1) & 3) * 85; |
|
r = ( i & 1) * 255; |
|
} |
|
y = av_clip_uint8((RY * r + GY * g + BY * b + ( 33 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
|
u = av_clip_uint8((RU * r + GU * g + BU * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
|
v = av_clip_uint8((RV * r + GV * g + BV * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
|
c->pal_yuv[i] = y + (u << 8) + (v << 16); |
|
|
|
switch (c->dstFormat) { |
|
case AV_PIX_FMT_BGR32: |
|
#if !HAVE_BIGENDIAN |
|
case AV_PIX_FMT_RGB24: |
|
#endif |
|
c->pal_rgb[i] = r + (g << 8) + (b << 16); |
|
break; |
|
case AV_PIX_FMT_BGR32_1: |
|
#if HAVE_BIGENDIAN |
|
case AV_PIX_FMT_BGR24: |
|
#endif |
|
c->pal_rgb[i] = (r + (g << 8) + (b << 16)) << 8; |
|
break; |
|
case AV_PIX_FMT_RGB32_1: |
|
#if HAVE_BIGENDIAN |
|
case AV_PIX_FMT_RGB24: |
|
#endif |
|
c->pal_rgb[i] = (b + (g << 8) + (r << 16)) << 8; |
|
break; |
|
case AV_PIX_FMT_RGB32: |
|
#if !HAVE_BIGENDIAN |
|
case AV_PIX_FMT_BGR24: |
|
#endif |
|
default: |
|
c->pal_rgb[i] = b + (g << 8) + (r << 16); |
|
} |
|
} |
|
} |
|
|
|
// copy strides, so they can safely be modified |
|
if (c->sliceDir == 1) { |
|
// slices go from top to bottom |
|
int srcStride2[4] = { srcStride[0], srcStride[1], srcStride[2], |
|
srcStride[3] }; |
|
int dstStride2[4] = { dstStride[0], dstStride[1], dstStride[2], |
|
dstStride[3] }; |
|
|
|
reset_ptr(src2, c->srcFormat); |
|
reset_ptr((const uint8_t **) dst2, c->dstFormat); |
|
|
|
/* reset slice direction at end of frame */ |
|
if (srcSliceY + srcSliceH == c->srcH) |
|
c->sliceDir = 0; |
|
|
|
return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, |
|
dstStride2); |
|
} else { |
|
// slices go from bottom to top => we flip the image internally |
|
int srcStride2[4] = { -srcStride[0], -srcStride[1], -srcStride[2], |
|
-srcStride[3] }; |
|
int dstStride2[4] = { -dstStride[0], -dstStride[1], -dstStride[2], |
|
-dstStride[3] }; |
|
|
|
src2[0] += (srcSliceH - 1) * srcStride[0]; |
|
if (!usePal(c->srcFormat)) |
|
src2[1] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[1]; |
|
src2[2] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[2]; |
|
src2[3] += (srcSliceH - 1) * srcStride[3]; |
|
dst2[0] += ( c->dstH - 1) * dstStride[0]; |
|
dst2[1] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[1]; |
|
dst2[2] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[2]; |
|
dst2[3] += ( c->dstH - 1) * dstStride[3]; |
|
|
|
reset_ptr(src2, c->srcFormat); |
|
reset_ptr((const uint8_t **) dst2, c->dstFormat); |
|
|
|
/* reset slice direction at end of frame */ |
|
if (!srcSliceY) |
|
c->sliceDir = 0; |
|
|
|
return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, |
|
srcSliceH, dst2, dstStride2); |
|
} |
|
} |
|
|
|
/* Convert the palette to the same packed 32-bit format as the palette */ |
|
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, |
|
int num_pixels, const uint8_t *palette) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < num_pixels; i++) |
|
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]]; |
|
} |
|
|
|
/* Palette format: ABCD -> dst format: ABC */ |
|
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, |
|
int num_pixels, const uint8_t *palette) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < num_pixels; i++) { |
|
//FIXME slow? |
|
dst[0] = palette[src[i] * 4 + 0]; |
|
dst[1] = palette[src[i] * 4 + 1]; |
|
dst[2] = palette[src[i] * 4 + 2]; |
|
dst += 3; |
|
} |
|
}
|
|
|