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FFmpeg/libswscale/swscale_unscaled.c
Niklas Haas 67adb30322 swscale: rename SwsContext to SwsInternal 
And preserve the public SwsContext as separate name. The motivation here
is that I want to turn SwsContext into a public struct, while keeping the
internal implementation hidden. Additionally, I also want to be able to
use multiple internal implementations, e.g. for GPU devices.

This commit does not include any functional changes. For the most part, it is
a simple rename. The only complications arise from the public facing API
functions, which preserve their current type (and hence require an additional
unwrapping step internally), and the checkasm test framework, which directly
accesses SwsInternal.

For consistency, the affected functions that need to maintain a distionction
have generally been changed to refer to the SwsContext as *sws, and the
SwsInternal as *c.

In an upcoming commit, I will provide a backing definition for the public
SwsContext, and update `sws_internal()` to dereference the internal struct
instead of merely casting it.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>
2024-10-24 22:50:00 +02:00

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/*
* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; 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 "swscale.h"
#include "swscale_internal.h"
#include "rgb2rgb.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/avutil.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem_internal.h"
#include "libavutil/bswap.h"
#include "libavutil/pixdesc.h"
#include "libavutil/avassert.h"
#include "libavutil/avconfig.h"
DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][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,},
},{
{ 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,},
},{
{ 2, 4, 3, 5, 2, 4, 3, 5,},
{ 6, 0, 7, 1, 6, 0, 7, 1,},
{ 3, 5, 2, 4, 3, 5, 2, 4,},
{ 7, 1, 6, 0, 7, 1, 6, 0,},
{ 2, 4, 3, 5, 2, 4, 3, 5,},
{ 6, 0, 7, 1, 6, 0, 7, 1,},
{ 3, 5, 2, 4, 3, 5, 2, 4,},
{ 7, 1, 6, 0, 7, 1, 6, 0,},
},{
{ 4, 8, 7, 11, 4, 8, 7, 11,},
{ 12, 0, 15, 3, 12, 0, 15, 3,},
{ 6, 10, 5, 9, 6, 10, 5, 9,},
{ 14, 2, 13, 1, 14, 2, 13, 1,},
{ 4, 8, 7, 11, 4, 8, 7, 11,},
{ 12, 0, 15, 3, 12, 0, 15, 3,},
{ 6, 10, 5, 9, 6, 10, 5, 9,},
{ 14, 2, 13, 1, 14, 2, 13, 1,},
},{
{ 9, 17, 15, 23, 8, 16, 14, 22,},
{ 25, 1, 31, 7, 24, 0, 30, 6,},
{ 13, 21, 11, 19, 12, 20, 10, 18,},
{ 29, 5, 27, 3, 28, 4, 26, 2,},
{ 8, 16, 14, 22, 9, 17, 15, 23,},
{ 24, 0, 30, 6, 25, 1, 31, 7,},
{ 12, 20, 10, 18, 13, 21, 11, 19,},
{ 28, 4, 26, 2, 29, 5, 27, 3,},
},{
{ 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,},
},{
{ 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,},
},{
{ 36, 68, 60, 92, 34, 66, 58, 90,},
{ 100, 4,124, 28, 98, 2,122, 26,},
{ 52, 84, 44, 76, 50, 82, 42, 74,},
{ 116, 20,108, 12,114, 18,106, 10,},
{ 32, 64, 56, 88, 38, 70, 62, 94,},
{ 96, 0,120, 24,102, 6,126, 30,},
{ 48, 80, 40, 72, 54, 86, 46, 78,},
{ 112, 16,104, 8,118, 22,110, 14,},
}};
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;
}
}
void ff_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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam[],
const int dstStride[])
{
uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
ff_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->chrSrcW, (srcSliceH + 1) / 2,
srcStride[1], srcStride[2], dstStride[1]);
else
interleaveBytes(src[2], src[1], dst, c->chrSrcW, (srcSliceH + 1) / 2,
srcStride[2], srcStride[1], dstStride[1]);
return srcSliceH;
}
static int nv12ToPlanarWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam[],
const int dstStride[])
{
uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
ff_copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dstParam[0], dstStride[0]);
if (c->srcFormat == AV_PIX_FMT_NV12)
deinterleaveBytes(src[1], dst1, dst2, c->chrSrcW, (srcSliceH + 1) / 2,
srcStride[1], dstStride[1], dstStride[2]);
else
deinterleaveBytes(src[1], dst2, dst1, c->chrSrcW, (srcSliceH + 1) / 2,
srcStride[1], dstStride[2], dstStride[1]);
return srcSliceH;
}
static int planarToNv24Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam[],
const int dstStride[])
{
uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY;
ff_copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dstParam[0], dstStride[0]);
if (c->dstFormat == AV_PIX_FMT_NV24)
interleaveBytes(src[1], src[2], dst, c->chrSrcW, srcSliceH,
srcStride[1], srcStride[2], dstStride[1]);
else
interleaveBytes(src[2], src[1], dst, c->chrSrcW, srcSliceH,
srcStride[2], srcStride[1], dstStride[1]);
return srcSliceH;
}
static int nv24ToPlanarWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam[],
const int dstStride[])
{
uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY;
uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY;
ff_copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dstParam[0], dstStride[0]);
if (c->srcFormat == AV_PIX_FMT_NV24)
deinterleaveBytes(src[1], dst1, dst2, c->chrSrcW, srcSliceH,
srcStride[1], dstStride[1], dstStride[2]);
else
deinterleaveBytes(src[1], dst2, dst1, c->chrSrcW, srcSliceH,
srcStride[1], dstStride[2], dstStride[1]);
return srcSliceH;
}
static void nv24_to_yuv420p_chroma(uint8_t *dst1, int dstStride1,
uint8_t *dst2, int dstStride2,
const uint8_t *src, int srcStride,
int w, int h)
{
const uint8_t *src1 = src;
const uint8_t *src2 = src + srcStride;
// average 4 pixels into 1 (interleaved U and V)
for (int y = 0; y < h; y += 2) {
for (int x = 0; x < w; x++) {
dst1[x] = (src1[4 * x + 0] + src1[4 * x + 2] +
src2[4 * x + 0] + src2[4 * x + 2]) >> 2;
dst2[x] = (src1[4 * x + 1] + src1[4 * x + 3] +
src2[4 * x + 1] + src2[4 * x + 3]) >> 2;
}
src1 += srcStride * 2;
src2 += srcStride * 2;
dst1 += dstStride1;
dst2 += dstStride2;
}
}
static int nv24ToYuv420Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const int dstStride[])
{
uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
ff_copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dstParam[0], dstStride[0]);
if (c->srcFormat == AV_PIX_FMT_NV24)
nv24_to_yuv420p_chroma(dst1, dstStride[1], dst2, dstStride[2],
src[1], srcStride[1], c->srcW / 2, srcSliceH);
else
nv24_to_yuv420p_chroma(dst2, dstStride[2], dst1, dstStride[1],
src[1], srcStride[1], c->srcW / 2, srcSliceH);
return srcSliceH;
}
static int planarToP01xWrapper(SwsInternal *c, const uint8_t *const src8[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam8[],
const int dstStride[])
{
const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
const uint16_t **src = (const uint16_t**)src8;
uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
int x, y;
/* Calculate net shift required for values. */
const int shift[3] = {
dst_format->comp[0].depth + dst_format->comp[0].shift -
src_format->comp[0].depth - src_format->comp[0].shift,
dst_format->comp[1].depth + dst_format->comp[1].shift -
src_format->comp[1].depth - src_format->comp[1].shift,
dst_format->comp[2].depth + dst_format->comp[2].shift -
src_format->comp[2].depth - src_format->comp[2].shift,
};
av_assert0(!(srcStride[0] % 2 || srcStride[1] % 2 || srcStride[2] % 2 ||
dstStride[0] % 2 || dstStride[1] % 2));
for (y = 0; y < srcSliceH; y++) {
uint16_t *tdstY = dstY;
const uint16_t *tsrc0 = src[0];
for (x = c->srcW; x > 0; x--) {
*tdstY++ = *tsrc0++ << shift[0];
}
src[0] += srcStride[0] / 2;
dstY += dstStride[0] / 2;
if (!(y & 1)) {
uint16_t *tdstUV = dstUV;
const uint16_t *tsrc1 = src[1];
const uint16_t *tsrc2 = src[2];
for (x = c->srcW / 2; x > 0; x--) {
*tdstUV++ = *tsrc1++ << shift[1];
*tdstUV++ = *tsrc2++ << shift[2];
}
src[1] += srcStride[1] / 2;
src[2] += srcStride[2] / 2;
dstUV += dstStride[1] / 2;
}
}
return srcSliceH;
}
#if AV_HAVE_BIGENDIAN
#define output_pixel(p, v) do { \
uint16_t *pp = (p); \
AV_WL16(pp, (v)); \
} while(0)
#else
#define output_pixel(p, v) (*p) = (v)
#endif
static int planar8ToP01xleWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dstParam8[],
const int dstStride[])
{
const uint8_t *src0 = src[0], *src1 = src[1], *src2 = src[2];
uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
int x, y, t;
av_assert0(!(dstStride[0] % 2 || dstStride[1] % 2));
for (y = 0; y < srcSliceH; y++) {
uint16_t *tdstY = dstY;
const uint8_t *tsrc0 = src0;
for (x = c->srcW; x > 0; x--) {
t = *tsrc0++;
output_pixel(tdstY++, t << 8);
}
src0 += srcStride[0];
dstY += dstStride[0] / 2;
if (!(y & 1)) {
uint16_t *tdstUV = dstUV;
const uint8_t *tsrc1 = src1;
const uint8_t *tsrc2 = src2;
for (x = c->srcW / 2; x > 0; x--) {
t = *tsrc1++;
output_pixel(tdstUV++, t << 8);
t = *tsrc2++;
output_pixel(tdstUV++, t << 8);
}
src1 += srcStride[1];
src2 += srcStride[2];
dstUV += dstStride[1] / 2;
}
}
return srcSliceH;
}
#undef output_pixel
static int planarToYuy2Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dstParam[], const 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 bswap_16bpc(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
int i, j, p;
for (p = 0; p < 4; p++) {
int srcstr = srcStride[p] / 2;
int dststr = dstStride[p] / 2;
uint16_t *dstPtr = (uint16_t *) dst[p];
const uint16_t *srcPtr = (const uint16_t *) src[p];
int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
if(!dstPtr || !srcPtr)
continue;
dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
for (j = 0; j < min_stride; j++) {
dstPtr[j] = av_bswap16(srcPtr[j]);
}
srcPtr += srcstr;
dstPtr += dststr;
}
}
return srcSliceH;
}
static int bswap_32bpc(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
int i, j, p;
for (p = 0; p < 4; p++) {
int srcstr = srcStride[p] / 4;
int dststr = dstStride[p] / 4;
uint32_t *dstPtr = (uint32_t *) dst[p];
const uint32_t *srcPtr = (const uint32_t *) src[p];
int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
if(!dstPtr || !srcPtr)
continue;
dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
for (j = 0; j < min_stride; j++) {
dstPtr[j] = av_bswap32(srcPtr[j]);
}
srcPtr += srcstr;
dstPtr += dststr;
}
}
return srcSliceH;
}
static int palToRgbWrapper(SwsInternal *c, const uint8_t *const src[], const int srcStride[],
int srcSliceY, int srcSliceH, uint8_t *const dst[],
const 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_YA8) {
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",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_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 packed16togbra16(const uint8_t *src, int srcStride,
uint16_t *dst[], const int dstStride[], int srcSliceH,
int src_alpha, int swap, int shift, int width)
{
int x, h, i;
int dst_alpha = dst[3] != NULL;
for (h = 0; h < srcSliceH; h++) {
uint16_t *src_line = (uint16_t *)(src + srcStride * h);
switch (swap) {
case 3:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
}
}
break;
case 2:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
dst[3][x] = av_bswap16(*src_line++ >> shift);
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
}
}
break;
case 1:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
dst[3][x] = av_bswap16(*src_line++) >> shift;
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
}
}
break;
default:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
dst[3][x] = *src_line++ >> shift;
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
}
}
}
for (i = 0; i < 4; i++)
dst[i] += dstStride[i] >> 1;
}
}
static int Rgb16ToPlanarRgb16Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
int bpc = dst_format->comp[0].depth;
int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
int swap = 0;
int i;
if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
swap++;
if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
swap += 2;
if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
(AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
src_format->name, dst_format->name);
return srcSliceH;
}
for(i=0; i<4; i++) {
dst2013[i] += stride2013[i] * srcSliceY / 2;
dst1023[i] += stride1023[i] * srcSliceY / 2;
}
switch (c->srcFormat) {
case AV_PIX_FMT_RGB48LE:
case AV_PIX_FMT_RGB48BE:
case AV_PIX_FMT_RGBA64LE:
case AV_PIX_FMT_RGBA64BE:
packed16togbra16(src[0], srcStride[0],
dst2013, stride2013, srcSliceH, alpha, swap,
16 - bpc, c->srcW);
break;
case AV_PIX_FMT_BGR48LE:
case AV_PIX_FMT_BGR48BE:
case AV_PIX_FMT_BGRA64LE:
case AV_PIX_FMT_BGRA64BE:
packed16togbra16(src[0], srcStride[0],
dst1023, stride1023, srcSliceH, alpha, swap,
16 - bpc, c->srcW);
break;
default:
av_log(c, AV_LOG_ERROR,
"unsupported conversion to planar RGB %s -> %s\n",
src_format->name, dst_format->name);
}
return srcSliceH;
}
static void gbr16ptopacked16(const uint16_t *src[], const int srcStride[],
uint8_t *dst, int dstStride, int srcSliceH,
int alpha, int swap, int bpp, int width)
{
int x, h, i;
int src_alpha = src[3] != NULL;
int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
for (h = 0; h < srcSliceH; h++) {
uint16_t *dest = (uint16_t *)(dst + dstStride * h);
uint16_t component;
switch(swap) {
case 3:
if (alpha && !src_alpha) {
for (x = 0; x < width; x++) {
component = av_bswap16(src[0][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[1][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[2][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
*dest++ = 0xffff;
}
} else if (alpha && src_alpha) {
for (x = 0; x < width; x++) {
component = av_bswap16(src[0][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[1][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[2][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[3][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
}
} else {
for (x = 0; x < width; x++) {
component = av_bswap16(src[0][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[1][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
component = av_bswap16(src[2][x]);
*dest++ = av_bswap16(component << scale_high | component >> scale_low);
}
}
break;
case 2:
if (alpha && !src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
*dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
*dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
*dest++ = 0xffff;
}
} else if (alpha && src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
*dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
*dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
*dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
}
} else {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
*dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
*dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
}
}
break;
case 1:
if (alpha && !src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
*dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
*dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
*dest++ = 0xffff;
}
} else if (alpha && src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
*dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
*dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
*dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
}
} else {
for (x = 0; x < width; x++) {
*dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
*dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
*dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
}
}
break;
default:
if (alpha && !src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
*dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
*dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
*dest++ = 0xffff;
}
} else if (alpha && src_alpha) {
for (x = 0; x < width; x++) {
*dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
*dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
*dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
*dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
}
} else {
for (x = 0; x < width; x++) {
*dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
*dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
*dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
}
}
}
for (i = 0; i < 3 + src_alpha; i++)
src[i] += srcStride[i] >> 1;
}
}
static int planarRgb16ToRgb16Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
int bits_per_sample = src_format->comp[0].depth;
int swap = 0;
if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
swap++;
if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
swap += 2;
if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
(AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
bits_per_sample <= 8) {
av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
src_format->name, dst_format->name);
return srcSliceH;
}
switch (c->dstFormat) {
case AV_PIX_FMT_BGR48LE:
case AV_PIX_FMT_BGR48BE:
gbr16ptopacked16(src102, stride102,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, 0, swap, bits_per_sample, c->srcW);
break;
case AV_PIX_FMT_RGB48LE:
case AV_PIX_FMT_RGB48BE:
gbr16ptopacked16(src201, stride201,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, 0, swap, bits_per_sample, c->srcW);
break;
case AV_PIX_FMT_RGBA64LE:
case AV_PIX_FMT_RGBA64BE:
gbr16ptopacked16(src201, stride201,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, 1, swap, bits_per_sample, c->srcW);
break;
case AV_PIX_FMT_BGRA64LE:
case AV_PIX_FMT_BGRA64BE:
gbr16ptopacked16(src102, stride102,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, 1, swap, bits_per_sample, c->srcW);
break;
default:
av_log(c, AV_LOG_ERROR,
"unsupported planar RGB conversion %s -> %s\n",
src_format->name, dst_format->name);
}
return srcSliceH;
}
static void gbr24ptopacked24(const uint8_t *src[], const 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[], const 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 void gbraptopacked32(const uint8_t *src[], const 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++ = src[3][x];
*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++ = src[3][x];
}
}
for (i = 0; i < 4; i++)
src[i] += srcStride[i];
}
}
static int planarRgbaToRgbWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
int alpha_first = 0;
const uint8_t *src102[] = { src[1], src[0], src[2], src[3] };
const uint8_t *src201[] = { src[2], src[0], src[1], src[3] };
int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
if (c->srcFormat != AV_PIX_FMT_GBRAP) {
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(src102, stride102,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, c->srcW);
break;
case AV_PIX_FMT_RGB24:
gbr24ptopacked24(src201, stride201,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, c->srcW);
break;
case AV_PIX_FMT_ARGB:
alpha_first = 1;
case AV_PIX_FMT_RGBA:
gbraptopacked32(src201, stride201,
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:
gbraptopacked32(src102, stride102,
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;
}
static int planarRgbToRgbWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
int alpha_first = 0;
const uint8_t *src102[] = { src[1], src[0], src[2] };
const uint8_t *src201[] = { src[2], src[0], src[1] };
int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
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(src102, stride102,
dst[0] + srcSliceY * dstStride[0], dstStride[0],
srcSliceH, c->srcW);
break;
case AV_PIX_FMT_RGB24:
gbr24ptopacked24(src201, stride201,
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(src201, stride201,
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(src102, stride102,
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;
}
static int planarRgbToplanarRgbWrapper(SwsInternal *c,
const uint8_t *const src[], const int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
ff_copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dst[0], dstStride[0]);
ff_copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
dst[1], dstStride[1]);
ff_copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
dst[2], dstStride[2]);
if (dst[3])
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
static void packedtogbr24p(const uint8_t *src, int srcStride,
uint8_t *const dst[], const int dstStride[], int srcSliceH,
int alpha_first, int inc_size, int width)
{
uint8_t *dest[3];
int x, h;
dest[0] = dst[0];
dest[1] = dst[1];
dest[2] = dst[2];
if (alpha_first)
src++;
for (h = 0; h < srcSliceH; h++) {
for (x = 0; x < width; x++) {
dest[0][x] = src[0];
dest[1][x] = src[1];
dest[2][x] = src[2];
src += inc_size;
}
src += srcStride - width * inc_size;
dest[0] += dstStride[0];
dest[1] += dstStride[1];
dest[2] += dstStride[2];
}
}
static int rgbToPlanarRgbWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
int alpha_first = 0;
int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
dst[0] + srcSliceY * dstStride[0],
dst[2] + srcSliceY * dstStride[2] };
uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
dst[0] + srcSliceY * dstStride[0],
dst[1] + srcSliceY * dstStride[1] };
switch (c->srcFormat) {
case AV_PIX_FMT_RGB24:
packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
stride201, srcSliceH, alpha_first, 3, c->srcW);
break;
case AV_PIX_FMT_BGR24:
packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
stride102, srcSliceH, alpha_first, 3, c->srcW);
break;
case AV_PIX_FMT_ARGB:
alpha_first = 1;
case AV_PIX_FMT_RGBA:
packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
stride201, srcSliceH, alpha_first, 4, c->srcW);
break;
case AV_PIX_FMT_ABGR:
alpha_first = 1;
case AV_PIX_FMT_BGRA:
packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
stride102, srcSliceH, alpha_first, 4, 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 BAYER_GBRG
#define BAYER_8
#define BAYER_RENAME(x) bayer_gbrg8_to_##x
#include "bayer_template.c"
#define BAYER_GBRG
#define BAYER_16LE
#define BAYER_RENAME(x) bayer_gbrg16le_to_##x
#include "bayer_template.c"
#define BAYER_GBRG
#define BAYER_16BE
#define BAYER_RENAME(x) bayer_gbrg16be_to_##x
#include "bayer_template.c"
#define BAYER_GRBG
#define BAYER_8
#define BAYER_RENAME(x) bayer_grbg8_to_##x
#include "bayer_template.c"
#define BAYER_GRBG
#define BAYER_16LE
#define BAYER_RENAME(x) bayer_grbg16le_to_##x
#include "bayer_template.c"
#define BAYER_GRBG
#define BAYER_16BE
#define BAYER_RENAME(x) bayer_grbg16be_to_##x
#include "bayer_template.c"
#define BAYER_BGGR
#define BAYER_8
#define BAYER_RENAME(x) bayer_bggr8_to_##x
#include "bayer_template.c"
#define BAYER_BGGR
#define BAYER_16LE
#define BAYER_RENAME(x) bayer_bggr16le_to_##x
#include "bayer_template.c"
#define BAYER_BGGR
#define BAYER_16BE
#define BAYER_RENAME(x) bayer_bggr16be_to_##x
#include "bayer_template.c"
#define BAYER_RGGB
#define BAYER_8
#define BAYER_RENAME(x) bayer_rggb8_to_##x
#include "bayer_template.c"
#define BAYER_RGGB
#define BAYER_16LE
#define BAYER_RENAME(x) bayer_rggb16le_to_##x
#include "bayer_template.c"
#define BAYER_RGGB
#define BAYER_16BE
#define BAYER_RENAME(x) bayer_rggb16be_to_##x
#include "bayer_template.c"
static int bayer_to_rgb24_wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0];
const uint8_t *srcPtr= src[0];
int i;
void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
switch(c->srcFormat) {
#define CASE(pixfmt, prefix) \
case pixfmt: copy = bayer_##prefix##_to_rgb24_copy; \
interpolate = bayer_##prefix##_to_rgb24_interpolate; \
break;
CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
#undef CASE
default: return 0;
}
av_assert0(srcSliceH > 1);
copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
srcPtr += 2 * srcStride[0];
dstPtr += 2 * dstStride[0];
for (i = 2; i < srcSliceH - 2; i += 2) {
interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
srcPtr += 2 * srcStride[0];
dstPtr += 2 * dstStride[0];
}
if (i + 1 == srcSliceH) {
copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
} else if (i < srcSliceH)
copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
return srcSliceH;
}
static int bayer_to_rgb48_wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0];
const uint8_t *srcPtr= src[0];
int i;
void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
switch(c->srcFormat) {
#define CASE(pixfmt, prefix) \
case pixfmt: copy = bayer_##prefix##_to_rgb48_copy; \
interpolate = bayer_##prefix##_to_rgb48_interpolate; \
break;
CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
#undef CASE
default: return 0;
}
av_assert0(srcSliceH > 1);
copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
srcPtr += 2 * srcStride[0];
dstPtr += 2 * dstStride[0];
for (i = 2; i < srcSliceH - 2; i += 2) {
interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
srcPtr += 2 * srcStride[0];
dstPtr += 2 * dstStride[0];
}
if (i + 1 == srcSliceH) {
copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
} else if (i < srcSliceH)
copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
return srcSliceH;
}
static int bayer_to_yv12_wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
const uint8_t *srcPtr= src[0];
uint8_t *dstY= dst[0] + srcSliceY * dstStride[0];
uint8_t *dstU= dst[1] + srcSliceY * dstStride[1] / 2;
uint8_t *dstV= dst[2] + srcSliceY * dstStride[2] / 2;
int i;
void (*copy) (const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, const int32_t *rgb2yuv);
void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, const int32_t *rgb2yuv);
switch(c->srcFormat) {
#define CASE(pixfmt, prefix) \
case pixfmt: copy = bayer_##prefix##_to_yv12_copy; \
interpolate = bayer_##prefix##_to_yv12_interpolate; \
break;
CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
#undef CASE
default: return 0;
}
av_assert0(srcSliceH > 1);
copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
srcPtr += 2 * srcStride[0];
dstY += 2 * dstStride[0];
dstU += dstStride[1];
dstV += dstStride[1];
for (i = 2; i < srcSliceH - 2; i += 2) {
interpolate(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
srcPtr += 2 * srcStride[0];
dstY += 2 * dstStride[0];
dstU += dstStride[1];
dstV += dstStride[1];
}
if (i + 1 == srcSliceH) {
copy(srcPtr, -srcStride[0], dstY, dstU, dstV, -dstStride[0], c->srcW, c->input_rgb2yuv_table);
} else if (i < srcSliceH)
copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
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 \
)
#define isRGBA64(x) ( \
(x) == AV_PIX_FMT_RGBA64LE \
|| (x) == AV_PIX_FMT_RGBA64BE \
|| (x) == AV_PIX_FMT_BGRA64LE \
|| (x) == AV_PIX_FMT_BGRA64BE \
)
#define isRGB48(x) ( \
(x) == AV_PIX_FMT_RGB48LE \
|| (x) == AV_PIX_FMT_RGB48BE \
|| (x) == AV_PIX_FMT_BGR48LE \
|| (x) == AV_PIX_FMT_BGR48BE \
)
/* {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(SwsInternal *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;
#define IS_NOT_NE(bpp, desc) \
(((bpp + 7) >> 3) == 2 && \
(!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
#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 if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
if (CONV_IS(RGB48LE, BGR48LE)
|| CONV_IS(BGR48LE, RGB48LE)
|| CONV_IS(RGB48BE, BGR48BE)
|| CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
else if (CONV_IS(RGB48LE, BGR48BE)
|| CONV_IS(BGR48LE, RGB48BE)
|| CONV_IS(RGB48BE, BGR48LE)
|| CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
} else if (isRGB48(srcFormat) && isRGBA64(dstFormat)) {
if (CONV_IS(RGB48LE, BGRA64LE)
|| CONV_IS(BGR48LE, RGBA64LE)
|| CONV_IS(RGB48BE, BGRA64BE)
|| CONV_IS(BGR48BE, RGBA64BE)) conv = rgb48tobgr64_nobswap;
else if (CONV_IS(RGB48LE, BGRA64BE)
|| CONV_IS(BGR48LE, RGBA64BE)
|| CONV_IS(RGB48BE, BGRA64LE)
|| CONV_IS(BGR48BE, RGBA64LE)) conv = rgb48tobgr64_bswap;
if (CONV_IS(RGB48LE, RGBA64LE)
|| CONV_IS(BGR48LE, BGRA64LE)
|| CONV_IS(RGB48BE, RGBA64BE)
|| CONV_IS(BGR48BE, BGRA64BE)) conv = rgb48to64_nobswap;
else if (CONV_IS(RGB48LE, RGBA64BE)
|| CONV_IS(BGR48LE, BGRA64BE)
|| CONV_IS(RGB48BE, RGBA64LE)
|| CONV_IS(BGR48BE, BGRA64LE)) conv = rgb48to64_bswap;
} else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
if (CONV_IS(RGBA64LE, BGR48LE)
|| CONV_IS(BGRA64LE, RGB48LE)
|| CONV_IS(RGBA64BE, BGR48BE)
|| CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
else if (CONV_IS(RGBA64LE, BGR48BE)
|| CONV_IS(BGRA64LE, RGB48BE)
|| CONV_IS(RGBA64BE, BGR48LE)
|| CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
else if (CONV_IS(RGBA64LE, RGB48LE)
|| CONV_IS(BGRA64LE, BGR48LE)
|| CONV_IS(RGBA64BE, RGB48BE)
|| CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
else if (CONV_IS(RGBA64LE, RGB48BE)
|| CONV_IS(BGRA64LE, BGR48BE)
|| CONV_IS(RGBA64BE, RGB48LE)
|| CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
} 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;
}
}
if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
return NULL;
// Maintain symmetry between endianness
if (c->flags & SWS_BITEXACT)
if ((dstFormat == AV_PIX_FMT_RGB32 || dstFormat == AV_PIX_FMT_BGR32 ) && !isRGBA32(srcFormat) && ALT32_CORR>0)
return NULL;
return conv;
}
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
static int rgbToRgbWrapper(SwsInternal *c, const uint8_t *const src[], const int srcStride[],
int srcSliceY, int srcSliceH, uint8_t *const dst[],
const int dstStride[])
{
const enum AVPixelFormat srcFormat = c->srcFormat;
const enum AVPixelFormat dstFormat = c->dstFormat;
const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(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",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
} else {
const uint8_t *srcPtr = src[0];
uint8_t *dstPtr = dst[0];
int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
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)) {
int i;
av_assert0(ALT32_CORR == 1);
for (i = 0; i < srcSliceH; i++)
dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
dstPtr += ALT32_CORR;
}
if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
!(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
(srcSliceH - 1) * srcStride[0] + c->srcW * srcBpp);
else {
int i, j;
dstPtr += dstStride[0] * srcSliceY;
for (i = 0; i < srcSliceH; i++) {
if(src_bswap) {
for(j=0; j<c->srcW; j++)
((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
}else
conv(srcPtr, dstPtr, c->srcW * srcBpp);
if(dst_bswap)
for(j=0; j<c->srcW; j++)
((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
srcPtr += srcStride[0];
dstPtr += dstStride[0];
}
}
}
return srcSliceH;
}
static int bgr24ToYv12Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
ff_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],
c->input_rgb2yuv_table);
if (dst[3])
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
static int yvu9ToYv12Wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const int dstStride[])
{
ff_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;
}
static int uint_y_to_float_y_wrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dst[], const int dstStride[])
{
int y, x;
ptrdiff_t dstStrideFloat = dstStride[0] >> 2;
const uint8_t *srcPtr = src[0];
float *dstPtr = (float *)(dst[0] + dstStride[0] * srcSliceY);
for (y = 0; y < srcSliceH; ++y){
for (x = 0; x < c->srcW; ++x){
dstPtr[x] = c->uint2float_lut[srcPtr[x]];
}
srcPtr += srcStride[0];
dstPtr += dstStrideFloat;
}
return srcSliceH;
}
static int float_y_to_uint_y_wrapper(SwsInternal *c,
const uint8_t *const src[],
const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *const dst[],
const int dstStride[])
{
int y, x;
ptrdiff_t srcStrideFloat = srcStride[0] >> 2;
const float *srcPtr = (const float *)src[0];
uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
for (y = 0; y < srcSliceH; ++y){
for (x = 0; x < c->srcW; ++x){
dstPtr[x] = av_clip_uint8(lrintf(255.0f * srcPtr[x]));
}
srcPtr += srcStrideFloat;
dstPtr += dstStride[0];
}
return srcSliceH;
}
/* unscaled copy like stuff (assumes nearly identical formats) */
static int packedCopyWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const 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;
av_assert1(length != 0);
for (i = 0; i < srcSliceH; i++) {
memcpy(dstPtr, srcPtr, length);
srcPtr += srcStride[0];
dstPtr += dstStride[0];
}
}
return srcSliceH;
}
#define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
unsigned shift= src_depth-dst_depth, tmp;\
if (c->dither == SWS_DITHER_NONE) {\
for (i = 0; i < height; i++) {\
for (j = 0; j < length-7; j+=8) {\
dst[j+0] = dbswap(bswap(src[j+0])>>shift);\
dst[j+1] = dbswap(bswap(src[j+1])>>shift);\
dst[j+2] = dbswap(bswap(src[j+2])>>shift);\
dst[j+3] = dbswap(bswap(src[j+3])>>shift);\
dst[j+4] = dbswap(bswap(src[j+4])>>shift);\
dst[j+5] = dbswap(bswap(src[j+5])>>shift);\
dst[j+6] = dbswap(bswap(src[j+6])>>shift);\
dst[j+7] = dbswap(bswap(src[j+7])>>shift);\
}\
for (; j < length; j++) {\
dst[j] = dbswap(bswap(src[j])>>shift);\
}\
dst += dstStride;\
src += srcStride;\
}\
} else if (shiftonly) {\
for (i = 0; i < height; i++) {\
const uint8_t *dither= dithers[shift-1][i&7];\
for (j = 0; j < length-7; j+=8) {\
tmp = (bswap(src[j+0]) + dither[0])>>shift; dst[j+0] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+1]) + dither[1])>>shift; dst[j+1] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+2]) + dither[2])>>shift; dst[j+2] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+3]) + dither[3])>>shift; dst[j+3] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+4]) + dither[4])>>shift; dst[j+4] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+5]) + dither[5])>>shift; dst[j+5] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+6]) + dither[6])>>shift; dst[j+6] = dbswap(tmp - (tmp>>dst_depth));\
tmp = (bswap(src[j+7]) + dither[7])>>shift; dst[j+7] = dbswap(tmp - (tmp>>dst_depth));\
}\
for (; j < length; j++) {\
tmp = (bswap(src[j]) + dither[j&7])>>shift; dst[j] = dbswap(tmp - (tmp>>dst_depth));\
}\
dst += dstStride;\
src += srcStride;\
}\
} else {\
for (i = 0; i < height; i++) {\
const uint8_t *dither= dithers[shift-1][i&7];\
for (j = 0; j < length-7; j+=8) {\
tmp = bswap(src[j+0]); dst[j+0] = dbswap((tmp - (tmp>>dst_depth) + dither[0])>>shift);\
tmp = bswap(src[j+1]); dst[j+1] = dbswap((tmp - (tmp>>dst_depth) + dither[1])>>shift);\
tmp = bswap(src[j+2]); dst[j+2] = dbswap((tmp - (tmp>>dst_depth) + dither[2])>>shift);\
tmp = bswap(src[j+3]); dst[j+3] = dbswap((tmp - (tmp>>dst_depth) + dither[3])>>shift);\
tmp = bswap(src[j+4]); dst[j+4] = dbswap((tmp - (tmp>>dst_depth) + dither[4])>>shift);\
tmp = bswap(src[j+5]); dst[j+5] = dbswap((tmp - (tmp>>dst_depth) + dither[5])>>shift);\
tmp = bswap(src[j+6]); dst[j+6] = dbswap((tmp - (tmp>>dst_depth) + dither[6])>>shift);\
tmp = bswap(src[j+7]); dst[j+7] = dbswap((tmp - (tmp>>dst_depth) + dither[7])>>shift);\
}\
for (; j < length; j++) {\
tmp = bswap(src[j]); dst[j] = dbswap((tmp - (tmp>>dst_depth) + dither[j&7])>>shift);\
}\
dst += dstStride;\
src += srcStride;\
}\
}
static int planarCopyWrapper(SwsInternal *c, const uint8_t *const src[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *const dst[], const 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 && dst[plane] != NULL; plane++) {
int length = (plane == 0 || plane == 3) ? c->srcW : AV_CEIL_RSHIFT(c->srcW, c->chrDstHSubSample);
int y = (plane == 0 || plane == 3) ? srcSliceY: AV_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
int height = (plane == 0 || plane == 3) ? srcSliceH: AV_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
const uint8_t *srcPtr = src[plane];
uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
int shiftonly = plane == 1 || plane == 2 || (!c->srcRange && plane == 0);
// ignore palette for GRAY8
if (plane == 1 && !dst[2]) continue;
if (!src[plane] || (plane == 1 && !src[2])) {
if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
fillPlane16(dst[plane], dstStride[plane], length, height, y,
plane == 3, desc_dst->comp[plane].depth,
isBE(c->dstFormat));
} else {
fillPlane(dst[plane], dstStride[plane], length, height, y,
(plane == 3) ? 255 : 128);
}
} else {
if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
|| (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
) {
const int src_depth = desc_src->comp[plane].depth;
const int dst_depth = desc_dst->comp[plane].depth;
const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
uint16_t *dstPtr2 = (uint16_t*)dstPtr;
if (dst_depth == 8) {
if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
} else {
DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
}
} else if (src_depth == 8) {
for (i = 0; i < height; i++) {
#define COPY816(w)\
if (shiftonly) {\
for (j = 0; j < length; j++)\
w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
} else {\
for (j = 0; j < length; j++)\
w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
(srcPtr[j]>>(2*8-dst_depth)));\
}
if(isBE(c->dstFormat)){
COPY816(AV_WB16)
} else {
COPY816(AV_WL16)
}
dstPtr2 += dstStride[plane]/2;
srcPtr += srcStride[plane];
}
} else if (src_depth <= dst_depth) {
for (i = 0; i < height; i++) {
j = 0;
if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
isBE(c->dstFormat) == HAVE_BIGENDIAN &&
shiftonly) {
unsigned shift = dst_depth - src_depth;
#if HAVE_FAST_64BIT
#define FAST_COPY_UP(shift) \
for (; j < length - 3; j += 4) { \
uint64_t v = AV_RN64A(srcPtr2 + j); \
AV_WN64A(dstPtr2 + j, v << shift); \
}
#else
#define FAST_COPY_UP(shift) \
for (; j < length - 1; j += 2) { \
uint32_t v = AV_RN32A(srcPtr2 + j); \
AV_WN32A(dstPtr2 + j, v << shift); \
}
#endif
switch (shift)
{
case 6: FAST_COPY_UP(6); break;
case 7: FAST_COPY_UP(7); break;
}
}
#define COPY_UP(r,w) \
if(shiftonly){\
for (; j < length; j++){ \
unsigned int v= r(&srcPtr2[j]);\
w(&dstPtr2[j], v<<(dst_depth-src_depth));\
}\
}else{\
for (; j < length; j++){ \
unsigned int v= r(&srcPtr2[j]);\
w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
(v>>(2*src_depth-dst_depth)));\
}\
}
if(isBE(c->srcFormat)){
if(isBE(c->dstFormat)){
COPY_UP(AV_RB16, AV_WB16)
} else {
COPY_UP(AV_RB16, AV_WL16)
}
} else {
if(isBE(c->dstFormat)){
COPY_UP(AV_RL16, AV_WB16)
} else {
COPY_UP(AV_RL16, AV_WL16)
}
}
dstPtr2 += dstStride[plane]/2;
srcPtr2 += srcStride[plane]/2;
}
} else {
if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
} else {
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
}
}else{
if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
} else {
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
}
}
}
} 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 (isFloat(c->srcFormat) && isFloat(c->dstFormat) &&
isBE(c->srcFormat) != isBE(c->dstFormat)) { /* swap float plane */
for (i = 0; i < height; i++) {
for (j = 0; j < length; j++)
((uint32_t *) dstPtr)[j] = av_bswap32(((const uint32_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 == 1)
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(SwsInternal *c)
{
const enum AVPixelFormat srcFormat = c->srcFormat;
const enum AVPixelFormat dstFormat = c->dstFormat;
const int flags = c->flags;
const int dstH = c->dstH;
const int dstW = c->dstW;
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->convert_unscaled = planarToNv12Wrapper;
}
/* yv24_to_nv24 */
if ((srcFormat == AV_PIX_FMT_YUV444P || srcFormat == AV_PIX_FMT_YUVA444P) &&
(dstFormat == AV_PIX_FMT_NV24 || dstFormat == AV_PIX_FMT_NV42)) {
c->convert_unscaled = planarToNv24Wrapper;
}
/* nv12_to_yv12 */
if (dstFormat == AV_PIX_FMT_YUV420P &&
(srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
c->convert_unscaled = nv12ToPlanarWrapper;
}
/* nv24_to_yv24 */
if (dstFormat == AV_PIX_FMT_YUV444P &&
(srcFormat == AV_PIX_FMT_NV24 || srcFormat == AV_PIX_FMT_NV42)) {
c->convert_unscaled = nv24ToPlanarWrapper;
}
/* yuv2bgr */
if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
!(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
c->convert_unscaled = ff_yuv2rgb_get_func_ptr(c);
c->dst_slice_align = 2;
}
/* yuv420p1x_to_p01x */
if ((srcFormat == AV_PIX_FMT_YUV420P10 || srcFormat == AV_PIX_FMT_YUVA420P10 ||
srcFormat == AV_PIX_FMT_YUV420P12 ||
srcFormat == AV_PIX_FMT_YUV420P14 ||
srcFormat == AV_PIX_FMT_YUV420P16 || srcFormat == AV_PIX_FMT_YUVA420P16) &&
(dstFormat == AV_PIX_FMT_P010 || dstFormat == AV_PIX_FMT_P016)) {
c->convert_unscaled = planarToP01xWrapper;
}
/* yuv420p_to_p01xle */
if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
(dstFormat == AV_PIX_FMT_P010LE || dstFormat == AV_PIX_FMT_P016LE)) {
c->convert_unscaled = planar8ToP01xleWrapper;
}
if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
!(flags & SWS_BITEXACT)) {
c->convert_unscaled = yvu9ToYv12Wrapper;
c->dst_slice_align = 4;
}
/* bgr24toYV12 */
if (srcFormat == AV_PIX_FMT_BGR24 &&
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
!(flags & SWS_ACCURATE_RND) && !(dstW&1))
c->convert_unscaled = 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->convert_unscaled = rgbToRgbWrapper;
/* RGB to planar RGB */
if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
(srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
c->convert_unscaled = planarRgbToplanarRgbWrapper;
#define isByteRGB(f) ( \
f == AV_PIX_FMT_RGB32 || \
f == AV_PIX_FMT_RGB32_1 || \
f == AV_PIX_FMT_RGB24 || \
f == AV_PIX_FMT_BGR32 || \
f == AV_PIX_FMT_BGR32_1 || \
f == AV_PIX_FMT_BGR24)
if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
c->convert_unscaled = planarRgbToRgbWrapper;
if (srcFormat == AV_PIX_FMT_GBRAP && isByteRGB(dstFormat))
c->convert_unscaled = planarRgbaToRgbWrapper;
if ((srcFormat == AV_PIX_FMT_RGB48LE || srcFormat == AV_PIX_FMT_RGB48BE ||
srcFormat == AV_PIX_FMT_BGR48LE || srcFormat == AV_PIX_FMT_BGR48BE ||
srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
(dstFormat == AV_PIX_FMT_GBRP9LE || dstFormat == AV_PIX_FMT_GBRP9BE ||
dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
dstFormat == AV_PIX_FMT_GBRAP10LE || dstFormat == AV_PIX_FMT_GBRAP10BE ||
dstFormat == AV_PIX_FMT_GBRAP12LE || dstFormat == AV_PIX_FMT_GBRAP12BE ||
dstFormat == AV_PIX_FMT_GBRAP14LE || dstFormat == AV_PIX_FMT_GBRAP14BE ||
dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
c->convert_unscaled = Rgb16ToPlanarRgb16Wrapper;
if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
srcFormat == AV_PIX_FMT_GBRAP10LE || srcFormat == AV_PIX_FMT_GBRAP10BE ||
srcFormat == AV_PIX_FMT_GBRAP12LE || srcFormat == AV_PIX_FMT_GBRAP12BE ||
srcFormat == AV_PIX_FMT_GBRAP14LE || srcFormat == AV_PIX_FMT_GBRAP14BE ||
srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
(dstFormat == AV_PIX_FMT_RGB48LE || dstFormat == AV_PIX_FMT_RGB48BE ||
dstFormat == AV_PIX_FMT_BGR48LE || dstFormat == AV_PIX_FMT_BGR48BE ||
dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
c->convert_unscaled = planarRgb16ToRgb16Wrapper;
if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth == 8 &&
isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
c->convert_unscaled = rgbToPlanarRgbWrapper;
if (isBayer(srcFormat)) {
c->dst_slice_align = 2;
if (dstFormat == AV_PIX_FMT_RGB24)
c->convert_unscaled = bayer_to_rgb24_wrapper;
else if (dstFormat == AV_PIX_FMT_RGB48)
c->convert_unscaled = bayer_to_rgb48_wrapper;
else if (dstFormat == AV_PIX_FMT_YUV420P)
c->convert_unscaled = bayer_to_yv12_wrapper;
else if (!isBayer(dstFormat)) {
av_log(c, AV_LOG_ERROR, "unsupported bayer conversion\n");
av_assert0(0);
}
}
/* bswap 16 bits per pixel/component packed formats */
if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_BGGR16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_RGGB16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GBRG16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GRBG16) ||
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_BGRA64) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY9) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YA16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_AYUV64) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
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) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
c->convert_unscaled = bswap_16bpc;
/* bswap 32 bits per pixel/component formats */
if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRPF32) ||
IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAPF32))
c->convert_unscaled = bswap_32bpc;
if (usePal(srcFormat) && isByteRGB(dstFormat))
c->convert_unscaled = palToRgbWrapper;
if (srcFormat == AV_PIX_FMT_YUV422P) {
if (dstFormat == AV_PIX_FMT_YUYV422)
c->convert_unscaled = yuv422pToYuy2Wrapper;
else if (dstFormat == AV_PIX_FMT_UYVY422)
c->convert_unscaled = yuv422pToUyvyWrapper;
}
/* uint Y to float Y */
if (srcFormat == AV_PIX_FMT_GRAY8 && dstFormat == AV_PIX_FMT_GRAYF32){
c->convert_unscaled = uint_y_to_float_y_wrapper;
}
/* float Y to uint Y */
if (srcFormat == AV_PIX_FMT_GRAYF32 && dstFormat == AV_PIX_FMT_GRAY8){
c->convert_unscaled = float_y_to_uint_y_wrapper;
}
/* 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->convert_unscaled = planarToYuy2Wrapper;
else if (dstFormat == AV_PIX_FMT_UYVY422)
c->convert_unscaled = planarToUyvyWrapper;
}
}
if (srcFormat == AV_PIX_FMT_YUYV422 &&
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
c->convert_unscaled = yuyvToYuv420Wrapper;
if (srcFormat == AV_PIX_FMT_UYVY422 &&
(dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
c->convert_unscaled = uyvyToYuv420Wrapper;
if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
c->convert_unscaled = yuyvToYuv422Wrapper;
if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
c->convert_unscaled = uyvyToYuv422Wrapper;
if (dstFormat == AV_PIX_FMT_YUV420P &&
(srcFormat == AV_PIX_FMT_NV24 || srcFormat == AV_PIX_FMT_NV42))
c->convert_unscaled = nv24ToYuv420Wrapper;
#define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_YA8 && (x) != AV_PIX_FMT_YA16LE && (x) != AV_PIX_FMT_YA16BE)
/* 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) ||
(isFloat(srcFormat) == isFloat(dstFormat)) && ((isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
(isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
(isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
(isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
c->chrDstHSubSample == c->chrSrcHSubSample &&
c->chrDstVSubSample == c->chrSrcVSubSample &&
!isSemiPlanarYUV(srcFormat) && !isSemiPlanarYUV(dstFormat))))
{
if (isPacked(c->srcFormat))
c->convert_unscaled = packedCopyWrapper;
else /* Planar YUV or gray */
c->convert_unscaled = planarCopyWrapper;
}
#if ARCH_PPC
ff_get_unscaled_swscale_ppc(c);
#elif ARCH_ARM
ff_get_unscaled_swscale_arm(c);
#elif ARCH_AARCH64
ff_get_unscaled_swscale_aarch64(c);
#endif
}
/* 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;
}
}
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