mirror of https://git.ffmpeg.org/ffmpeg.git
962 lines
45 KiB
C
962 lines
45 KiB
C
/*
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* software YUV to RGB converter
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*
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* Copyright (C) 2009 Konstantin Shishkov
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*
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* 1,4,8bpp support and context / deglobalize stuff
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* by Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include "libavutil/bswap.h"
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#include "libavutil/mem.h"
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#include "config.h"
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#include "swscale.h"
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#include "swscale_internal.h"
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#include "libavutil/pixdesc.h"
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/* Color space conversion coefficients for YCbCr -> RGB mapping.
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*
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* Entries are {crv, cbu, cgu, cgv}
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*
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* crv = (255 / 224) * 65536 * (1 - cr) / 0.5
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* cbu = (255 / 224) * 65536 * (1 - cb) / 0.5
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* cgu = (255 / 224) * 65536 * (cb / cg) * (1 - cb) / 0.5
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* cgv = (255 / 224) * 65536 * (cr / cg) * (1 - cr) / 0.5
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*
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* where Y = cr * R + cg * G + cb * B and cr + cg + cb = 1.
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*/
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const int32_t ff_yuv2rgb_coeffs[11][4] = {
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{ 104597, 132201, 25675, 53279 }, /* no sequence_display_extension */
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{ 117489, 138438, 13975, 34925 }, /* ITU-R Rec. 709 (1990) */
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{ 104597, 132201, 25675, 53279 }, /* unspecified */
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{ 104597, 132201, 25675, 53279 }, /* reserved */
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{ 104448, 132798, 24759, 53109 }, /* FCC */
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{ 104597, 132201, 25675, 53279 }, /* ITU-R Rec. 624-4 System B, G */
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{ 104597, 132201, 25675, 53279 }, /* SMPTE 170M */
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{ 117579, 136230, 16907, 35559 }, /* SMPTE 240M (1987) */
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{ 0 }, /* YCgCo */
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{ 110013, 140363, 12277, 42626 }, /* Bt-2020-NCL */
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{ 110013, 140363, 12277, 42626 }, /* Bt-2020-CL */
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};
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const int *sws_getCoefficients(int colorspace)
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{
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if (colorspace > 10 || colorspace < 0 || colorspace == 8)
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colorspace = SWS_CS_DEFAULT;
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return ff_yuv2rgb_coeffs[colorspace];
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}
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#define LOADCHROMA(l, i) \
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U = pu_##l[i]; \
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V = pv_##l[i]; \
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r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
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g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
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b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
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#define PUTRGB(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l[2 * i] = r[Y] + g[Y] + b[Y]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[2 * i + 1] = r[Y] + g[Y] + b[Y];
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#define PUTRGB24(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l[6 * i + 0] = r[Y]; \
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dst_##l[6 * i + 1] = g[Y]; \
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dst_##l[6 * i + 2] = b[Y]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[6 * i + 3] = r[Y]; \
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dst_##l[6 * i + 4] = g[Y]; \
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dst_##l[6 * i + 5] = b[Y];
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#define PUTBGR24(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l[6 * i + 0] = b[Y]; \
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dst_##l[6 * i + 1] = g[Y]; \
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dst_##l[6 * i + 2] = r[Y]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[6 * i + 3] = b[Y]; \
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dst_##l[6 * i + 4] = g[Y]; \
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dst_##l[6 * i + 5] = r[Y];
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#define PUTRGBA(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l[2 * i] = r[Y] + g[Y] + b[Y] + ((uint32_t)(pa_##l[2 * i]) << abase); \
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Y = py_##l[2 * i + 1]; \
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dst_##l[2 * i + 1] = r[Y] + g[Y] + b[Y] + ((uint32_t)(pa_##l[2 * i + 1]) << abase);
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#define PUTRGB48(l, i, abase) \
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Y = py_##l[ 2 * i]; \
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dst_##l[12 * i + 0] = dst_##l[12 * i + 1] = r[Y]; \
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dst_##l[12 * i + 2] = dst_##l[12 * i + 3] = g[Y]; \
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dst_##l[12 * i + 4] = dst_##l[12 * i + 5] = b[Y]; \
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Y = py_##l[ 2 * i + 1]; \
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dst_##l[12 * i + 6] = dst_##l[12 * i + 7] = r[Y]; \
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dst_##l[12 * i + 8] = dst_##l[12 * i + 9] = g[Y]; \
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dst_##l[12 * i + 10] = dst_##l[12 * i + 11] = b[Y];
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#define PUTBGR48(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l[12 * i + 0] = dst_##l[12 * i + 1] = b[Y]; \
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dst_##l[12 * i + 2] = dst_##l[12 * i + 3] = g[Y]; \
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dst_##l[12 * i + 4] = dst_##l[12 * i + 5] = r[Y]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[12 * i + 6] = dst_##l[12 * i + 7] = b[Y]; \
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dst_##l[12 * i + 8] = dst_##l[12 * i + 9] = g[Y]; \
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dst_##l[12 * i + 10] = dst_##l[12 * i + 11] = r[Y];
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#define PUTGBRP(l, i, abase) \
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Y = py_##l[2 * i]; \
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dst_##l [2 * i + 0] = g[Y]; \
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dst1_##l[2 * i + 0] = b[Y]; \
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dst2_##l[2 * i + 0] = r[Y]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l [2 * i + 1] = g[Y]; \
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dst1_##l[2 * i + 1] = b[Y]; \
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dst2_##l[2 * i + 1] = r[Y];
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#define YUV2RGBFUNC(func_name, dst_type, alpha, yuv422, nb_dst_planes) \
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static int func_name(SwsContext *c, const uint8_t *src[], \
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int srcStride[], int srcSliceY, int srcSliceH, \
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uint8_t *dst[], int dstStride[]) \
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{ \
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int y; \
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\
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for (y = 0; y < srcSliceH; y += 2) { \
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int yd = y + srcSliceY; \
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dst_type *dst_1 = \
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(dst_type *)(dst[0] + (yd) * dstStride[0]); \
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dst_type *dst_2 = \
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(dst_type *)(dst[0] + (yd + 1) * dstStride[0]); \
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dst_type av_unused *dst1_1, *dst1_2, *dst2_1, *dst2_2; \
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dst_type av_unused *r, *g, *b; \
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const uint8_t *py_1 = src[0] + y * srcStride[0]; \
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const uint8_t *py_2 = py_1 + srcStride[0]; \
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const uint8_t av_unused *pu_1 = src[1] + (y >> !yuv422) * srcStride[1]; \
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const uint8_t av_unused *pv_1 = src[2] + (y >> !yuv422) * srcStride[2]; \
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const uint8_t av_unused *pu_2, *pv_2; \
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const uint8_t av_unused *pa_1, *pa_2; \
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unsigned int h_size = c->dstW >> 3; \
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if (nb_dst_planes > 1) { \
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dst1_1 = (dst_type *)(dst[1] + (yd) * dstStride[1]); \
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dst1_2 = (dst_type *)(dst[1] + (yd + 1) * dstStride[1]); \
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dst2_1 = (dst_type *)(dst[2] + (yd) * dstStride[2]); \
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dst2_2 = (dst_type *)(dst[2] + (yd + 1) * dstStride[2]); \
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} \
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if (yuv422) { \
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pu_2 = pu_1 + srcStride[1]; \
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pv_2 = pv_1 + srcStride[2]; \
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} \
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if (alpha) { \
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pa_1 = src[3] + y * srcStride[3]; \
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pa_2 = pa_1 + srcStride[3]; \
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} \
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while (h_size--) { \
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int av_unused U, V, Y; \
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#define ENDYUV2RGBLINE(dst_delta, ss, alpha, yuv422, nb_dst_planes) \
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pu_1 += 4 >> ss; \
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pv_1 += 4 >> ss; \
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if (yuv422) { \
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pu_2 += 4 >> ss; \
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pv_2 += 4 >> ss; \
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} \
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py_1 += 8 >> ss; \
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py_2 += 8 >> ss; \
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if (alpha) { \
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pa_1 += 8 >> ss; \
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pa_2 += 8 >> ss; \
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} \
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dst_1 += dst_delta >> ss; \
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dst_2 += dst_delta >> ss; \
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if (nb_dst_planes > 1) { \
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dst1_1 += dst_delta >> ss; \
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dst1_2 += dst_delta >> ss; \
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dst2_1 += dst_delta >> ss; \
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dst2_2 += dst_delta >> ss; \
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} \
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} \
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if (c->dstW & (4 >> ss)) { \
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int av_unused Y, U, V; \
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#define ENDYUV2RGBFUNC() \
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} \
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} \
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return srcSliceH; \
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}
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#define YUV420FUNC(func_name, dst_type, alpha, abase, PUTFUNC, dst_delta, nb_dst_planes) \
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YUV2RGBFUNC(func_name, dst_type, alpha, 0, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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PUTFUNC(2, 0, abase); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(2, 1, abase); \
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PUTFUNC(1, 1, abase); \
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\
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LOADCHROMA(1, 2); \
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PUTFUNC(1, 2, abase); \
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PUTFUNC(2, 2, abase); \
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\
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LOADCHROMA(1, 3); \
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PUTFUNC(2, 3, abase); \
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PUTFUNC(1, 3, abase); \
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ENDYUV2RGBLINE(dst_delta, 0, alpha, 0, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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PUTFUNC(2, 0, abase); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(2, 1, abase); \
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PUTFUNC(1, 1, abase); \
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ENDYUV2RGBLINE(dst_delta, 1, alpha, 0, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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PUTFUNC(2, 0, abase); \
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ENDYUV2RGBFUNC()
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#define YUV422FUNC(func_name, dst_type, alpha, abase, PUTFUNC, dst_delta, nb_dst_planes) \
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YUV2RGBFUNC(func_name, dst_type, alpha, 1, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, abase); \
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\
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LOADCHROMA(2, 1); \
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PUTFUNC(2, 1, abase); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(1, 1, abase); \
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\
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LOADCHROMA(1, 2); \
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PUTFUNC(1, 2, abase); \
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\
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LOADCHROMA(2, 2); \
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PUTFUNC(2, 2, abase); \
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\
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LOADCHROMA(2, 3); \
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PUTFUNC(2, 3, abase); \
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\
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LOADCHROMA(1, 3); \
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PUTFUNC(1, 3, abase); \
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ENDYUV2RGBLINE(dst_delta, 0, alpha, 1, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, abase); \
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\
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LOADCHROMA(2, 1); \
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PUTFUNC(2, 1, abase); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(1, 1, abase); \
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ENDYUV2RGBLINE(dst_delta, 1, alpha, 1, nb_dst_planes) \
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, abase); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, abase); \
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ENDYUV2RGBFUNC()
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#define YUV420FUNC_DITHER(func_name, dst_type, LOADDITHER, PUTFUNC, dst_delta) \
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YUV2RGBFUNC(func_name, dst_type, 0, 0, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(2, 1, 2 + 8); \
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PUTFUNC(1, 1, 2); \
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\
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LOADCHROMA(1, 2); \
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PUTFUNC(1, 2, 4); \
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PUTFUNC(2, 2, 4 + 8); \
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\
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LOADCHROMA(1, 3); \
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PUTFUNC(2, 3, 6 + 8); \
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PUTFUNC(1, 3, 6); \
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ENDYUV2RGBLINE(dst_delta, 0, 0, 0, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(2, 1, 2 + 8); \
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PUTFUNC(1, 1, 2); \
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ENDYUV2RGBLINE(dst_delta, 1, 0, 0, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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ENDYUV2RGBFUNC()
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#define YUV422FUNC_DITHER(func_name, dst_type, LOADDITHER, PUTFUNC, dst_delta) \
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YUV2RGBFUNC(func_name, dst_type, 0, 1, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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\
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LOADCHROMA(2, 1); \
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PUTFUNC(2, 1, 2 + 8); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(1, 1, 2); \
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\
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LOADCHROMA(1, 2); \
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PUTFUNC(1, 2, 4); \
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\
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LOADCHROMA(2, 2); \
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PUTFUNC(2, 2, 4 + 8); \
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\
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LOADCHROMA(2, 3); \
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PUTFUNC(2, 3, 6 + 8); \
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\
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LOADCHROMA(1, 3); \
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PUTFUNC(1, 3, 6); \
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ENDYUV2RGBLINE(dst_delta, 0, 0, 1, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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\
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LOADCHROMA(2, 1); \
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PUTFUNC(2, 1, 2 + 8); \
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\
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LOADCHROMA(1, 1); \
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PUTFUNC(1, 1, 2); \
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ENDYUV2RGBLINE(dst_delta, 1, 0, 1, 1) \
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LOADDITHER \
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\
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LOADCHROMA(1, 0); \
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PUTFUNC(1, 0, 0); \
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\
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LOADCHROMA(2, 0); \
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PUTFUNC(2, 0, 0 + 8); \
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ENDYUV2RGBFUNC()
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#define LOADDITHER16 \
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const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \
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const uint8_t *e16 = ff_dither_2x2_4[y & 1]; \
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const uint8_t *f16 = ff_dither_2x2_8[(y & 1)^1];
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#define PUTRGB16(l, i, o) \
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Y = py_##l[2 * i]; \
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dst_##l[2 * i] = r[Y + d16[0 + o]] + \
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g[Y + e16[0 + o]] + \
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b[Y + f16[0 + o]]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
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g[Y + e16[1 + o]] + \
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b[Y + f16[1 + o]];
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#define LOADDITHER15 \
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const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \
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const uint8_t *e16 = ff_dither_2x2_8[(y & 1)^1];
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#define PUTRGB15(l, i, o) \
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Y = py_##l[2 * i]; \
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dst_##l[2 * i] = r[Y + d16[0 + o]] + \
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g[Y + d16[1 + o]] + \
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b[Y + e16[0 + o]]; \
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Y = py_##l[2 * i + 1]; \
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dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
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g[Y + d16[0 + o]] + \
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b[Y + e16[1 + o]];
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#define LOADDITHER12 \
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const uint8_t *d16 = ff_dither_4x4_16[y & 3];
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#define PUTRGB12(l, i, o) \
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Y = py_##l[2 * i]; \
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dst_##l[2 * i] = r[Y + d16[0 + o]] + \
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g[Y + d16[0 + o]] + \
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|
b[Y + d16[0 + o]]; \
|
|
Y = py_##l[2 * i + 1]; \
|
|
dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
|
|
g[Y + d16[1 + o]] + \
|
|
b[Y + d16[1 + o]];
|
|
|
|
#define LOADDITHER8 \
|
|
const uint8_t *d32 = ff_dither_8x8_32[yd & 7]; \
|
|
const uint8_t *d64 = ff_dither_8x8_73[yd & 7];
|
|
|
|
#define PUTRGB8(l, i, o) \
|
|
Y = py_##l[2 * i]; \
|
|
dst_##l[2 * i] = r[Y + d32[0 + o]] + \
|
|
g[Y + d32[0 + o]] + \
|
|
b[Y + d64[0 + o]]; \
|
|
Y = py_##l[2 * i + 1]; \
|
|
dst_##l[2 * i + 1] = r[Y + d32[1 + o]] + \
|
|
g[Y + d32[1 + o]] + \
|
|
b[Y + d64[1 + o]];
|
|
|
|
#define LOADDITHER4D \
|
|
const uint8_t * d64 = ff_dither_8x8_73[yd & 7]; \
|
|
const uint8_t *d128 = ff_dither_8x8_220[yd & 7]; \
|
|
int acc;
|
|
|
|
#define PUTRGB4D(l, i, o) \
|
|
Y = py_##l[2 * i]; \
|
|
acc = r[Y + d128[0 + o]] + \
|
|
g[Y + d64[0 + o]] + \
|
|
b[Y + d128[0 + o]]; \
|
|
Y = py_##l[2 * i + 1]; \
|
|
acc |= (r[Y + d128[1 + o]] + \
|
|
g[Y + d64[1 + o]] + \
|
|
b[Y + d128[1 + o]]) << 4; \
|
|
dst_##l[i] = acc;
|
|
|
|
#define LOADDITHER4DB \
|
|
const uint8_t *d64 = ff_dither_8x8_73[yd & 7]; \
|
|
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
|
|
|
|
#define PUTRGB4DB(l, i, o) \
|
|
Y = py_##l[2 * i]; \
|
|
dst_##l[2 * i] = r[Y + d128[0 + o]] + \
|
|
g[Y + d64[0 + o]] + \
|
|
b[Y + d128[0 + o]]; \
|
|
Y = py_##l[2 * i + 1]; \
|
|
dst_##l[2 * i + 1] = r[Y + d128[1 + o]] + \
|
|
g[Y + d64[1 + o]] + \
|
|
b[Y + d128[1 + o]];
|
|
|
|
YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0, 0, 1)
|
|
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
|
|
char out_1 = 0, out_2 = 0;
|
|
g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
|
|
|
|
#define PUTRGB1(out, src, i, o) \
|
|
Y = src[2 * i]; \
|
|
out += out + g[Y + d128[0 + o]]; \
|
|
Y = src[2 * i + 1]; \
|
|
out += out + g[Y + d128[1 + o]];
|
|
|
|
PUTRGB1(out_1, py_1, 0, 0);
|
|
PUTRGB1(out_2, py_2, 0, 0 + 8);
|
|
|
|
PUTRGB1(out_2, py_2, 1, 2 + 8);
|
|
PUTRGB1(out_1, py_1, 1, 2);
|
|
|
|
PUTRGB1(out_1, py_1, 2, 4);
|
|
PUTRGB1(out_2, py_2, 2, 4 + 8);
|
|
|
|
PUTRGB1(out_2, py_2, 3, 6 + 8);
|
|
PUTRGB1(out_1, py_1, 3, 6);
|
|
|
|
dst_1[0] = out_1;
|
|
dst_2[0] = out_2;
|
|
|
|
py_1 += 8;
|
|
py_2 += 8;
|
|
dst_1 += 1;
|
|
dst_2 += 1;
|
|
}
|
|
if (c->dstW & 7) {
|
|
int av_unused Y, U, V;
|
|
int pixels_left = c->dstW & 7;
|
|
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
|
|
char out_1 = 0, out_2 = 0;
|
|
g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
|
|
|
|
#define PUTRGB1_OR00(out, src, i, o) \
|
|
if (pixels_left) { \
|
|
PUTRGB1(out, src, i, o) \
|
|
pixels_left--; \
|
|
} else { \
|
|
out <<= 2; \
|
|
}
|
|
|
|
PUTRGB1_OR00(out_1, py_1, 0, 0);
|
|
PUTRGB1_OR00(out_2, py_2, 0, 0 + 8);
|
|
|
|
PUTRGB1_OR00(out_2, py_2, 1, 2 + 8);
|
|
PUTRGB1_OR00(out_1, py_1, 1, 2);
|
|
|
|
PUTRGB1_OR00(out_1, py_1, 2, 4);
|
|
PUTRGB1_OR00(out_2, py_2, 2, 4 + 8);
|
|
|
|
PUTRGB1_OR00(out_2, py_2, 3, 6 + 8);
|
|
PUTRGB1_OR00(out_1, py_1, 3, 6);
|
|
|
|
dst_1[0] = out_1;
|
|
dst_2[0] = out_2;
|
|
ENDYUV2RGBFUNC()
|
|
|
|
// YUV420
|
|
YUV420FUNC(yuv2rgb_c_48, uint8_t, 0, 0, PUTRGB48, 48, 1)
|
|
YUV420FUNC(yuv2rgb_c_bgr48, uint8_t, 0, 0, PUTBGR48, 48, 1)
|
|
YUV420FUNC(yuv2rgb_c_32, uint32_t, 0, 0, PUTRGB, 8, 1)
|
|
#if HAVE_BIGENDIAN
|
|
YUV420FUNC(yuva2argb_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
|
|
YUV420FUNC(yuva2rgba_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
|
|
#else
|
|
YUV420FUNC(yuva2rgba_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
|
|
YUV420FUNC(yuva2argb_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
|
|
#endif
|
|
YUV420FUNC(yuv2rgb_c_24_rgb, uint8_t, 0, 0, PUTRGB24, 24, 1)
|
|
YUV420FUNC(yuv2rgb_c_24_bgr, uint8_t, 0, 0, PUTBGR24, 24, 1)
|
|
YUV420FUNC(yuv420p_gbrp_c, uint8_t, 0, 0, PUTGBRP, 8, 3)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_16_ordered_dither, uint16_t, LOADDITHER16, PUTRGB16, 8)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_15_ordered_dither, uint16_t, LOADDITHER15, PUTRGB15, 8)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_12_ordered_dither, uint16_t, LOADDITHER12, PUTRGB12, 8)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_8_ordered_dither, uint8_t, LOADDITHER8, PUTRGB8, 8)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_4_ordered_dither, uint8_t, LOADDITHER4D, PUTRGB4D, 4)
|
|
YUV420FUNC_DITHER(yuv2rgb_c_4b_ordered_dither, uint8_t, LOADDITHER4DB, PUTRGB4DB, 8)
|
|
|
|
// YUV422
|
|
YUV422FUNC(yuv422p_rgb48_c, uint8_t, 0, 0, PUTRGB48, 48, 1)
|
|
YUV422FUNC(yuv422p_bgr48_c, uint8_t, 0, 0, PUTBGR48, 48, 1)
|
|
YUV422FUNC(yuv422p_rgb32_c, uint32_t, 0, 0, PUTRGB, 8, 1)
|
|
#if HAVE_BIGENDIAN
|
|
YUV422FUNC(yuva422p_argb_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
|
|
YUV422FUNC(yuva422p_rgba_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
|
|
#else
|
|
YUV422FUNC(yuva422p_rgba_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
|
|
YUV422FUNC(yuva422p_argb_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
|
|
#endif
|
|
YUV422FUNC(yuv422p_rgb24_c, uint8_t, 0, 0, PUTRGB24, 24, 1)
|
|
YUV422FUNC(yuv422p_bgr24_c, uint8_t, 0, 0, PUTBGR24, 24, 1)
|
|
YUV422FUNC(yuv422p_gbrp_c, uint8_t, 0, 0, PUTGBRP, 8, 3)
|
|
YUV422FUNC_DITHER(yuv422p_bgr16, uint16_t, LOADDITHER16, PUTRGB16, 8)
|
|
YUV422FUNC_DITHER(yuv422p_bgr15, uint16_t, LOADDITHER15, PUTRGB15, 8)
|
|
YUV422FUNC_DITHER(yuv422p_bgr12, uint16_t, LOADDITHER12, PUTRGB12, 8)
|
|
YUV422FUNC_DITHER(yuv422p_bgr8, uint8_t, LOADDITHER8, PUTRGB8, 8)
|
|
YUV422FUNC_DITHER(yuv422p_bgr4, uint8_t, LOADDITHER4D, PUTRGB4D, 4)
|
|
YUV422FUNC_DITHER(yuv422p_bgr4_byte, uint8_t, LOADDITHER4DB, PUTRGB4DB, 8)
|
|
|
|
SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
|
|
{
|
|
SwsFunc t = NULL;
|
|
|
|
#if ARCH_PPC
|
|
t = ff_yuv2rgb_init_ppc(c);
|
|
#elif ARCH_X86
|
|
t = ff_yuv2rgb_init_x86(c);
|
|
#elif ARCH_LOONGARCH64
|
|
t = ff_yuv2rgb_init_loongarch(c);
|
|
#endif
|
|
|
|
if (t)
|
|
return t;
|
|
|
|
av_log(c, AV_LOG_WARNING,
|
|
"No accelerated colorspace conversion found from %s to %s.\n",
|
|
av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
|
|
|
|
if (c->srcFormat == AV_PIX_FMT_YUV422P) {
|
|
switch (c->dstFormat) {
|
|
case AV_PIX_FMT_BGR48BE:
|
|
case AV_PIX_FMT_BGR48LE:
|
|
return yuv422p_bgr48_c;
|
|
case AV_PIX_FMT_RGB48BE:
|
|
case AV_PIX_FMT_RGB48LE:
|
|
return yuv422p_rgb48_c;
|
|
case AV_PIX_FMT_ARGB:
|
|
case AV_PIX_FMT_ABGR:
|
|
if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat))
|
|
return yuva422p_argb_c;
|
|
case AV_PIX_FMT_RGBA:
|
|
case AV_PIX_FMT_BGRA:
|
|
return (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat)) ? yuva422p_rgba_c : yuv422p_rgb32_c;
|
|
case AV_PIX_FMT_RGB24:
|
|
return yuv422p_rgb24_c;
|
|
case AV_PIX_FMT_BGR24:
|
|
return yuv422p_bgr24_c;
|
|
case AV_PIX_FMT_RGB565:
|
|
case AV_PIX_FMT_BGR565:
|
|
return yuv422p_bgr16;
|
|
case AV_PIX_FMT_RGB555:
|
|
case AV_PIX_FMT_BGR555:
|
|
return yuv422p_bgr15;
|
|
case AV_PIX_FMT_RGB444:
|
|
case AV_PIX_FMT_BGR444:
|
|
return yuv422p_bgr12;
|
|
case AV_PIX_FMT_RGB8:
|
|
case AV_PIX_FMT_BGR8:
|
|
return yuv422p_bgr8;
|
|
case AV_PIX_FMT_RGB4:
|
|
case AV_PIX_FMT_BGR4:
|
|
return yuv422p_bgr4;
|
|
case AV_PIX_FMT_RGB4_BYTE:
|
|
case AV_PIX_FMT_BGR4_BYTE:
|
|
return yuv422p_bgr4_byte;
|
|
case AV_PIX_FMT_MONOBLACK:
|
|
return yuv2rgb_c_1_ordered_dither;
|
|
case AV_PIX_FMT_GBRP:
|
|
return yuv422p_gbrp_c;
|
|
}
|
|
} else {
|
|
switch (c->dstFormat) {
|
|
case AV_PIX_FMT_BGR48BE:
|
|
case AV_PIX_FMT_BGR48LE:
|
|
return yuv2rgb_c_bgr48;
|
|
case AV_PIX_FMT_RGB48BE:
|
|
case AV_PIX_FMT_RGB48LE:
|
|
return yuv2rgb_c_48;
|
|
case AV_PIX_FMT_ARGB:
|
|
case AV_PIX_FMT_ABGR:
|
|
if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat))
|
|
return yuva2argb_c;
|
|
case AV_PIX_FMT_RGBA:
|
|
case AV_PIX_FMT_BGRA:
|
|
return (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat)) ? yuva2rgba_c : yuv2rgb_c_32;
|
|
case AV_PIX_FMT_RGB24:
|
|
return yuv2rgb_c_24_rgb;
|
|
case AV_PIX_FMT_BGR24:
|
|
return yuv2rgb_c_24_bgr;
|
|
case AV_PIX_FMT_RGB565:
|
|
case AV_PIX_FMT_BGR565:
|
|
return yuv2rgb_c_16_ordered_dither;
|
|
case AV_PIX_FMT_RGB555:
|
|
case AV_PIX_FMT_BGR555:
|
|
return yuv2rgb_c_15_ordered_dither;
|
|
case AV_PIX_FMT_RGB444:
|
|
case AV_PIX_FMT_BGR444:
|
|
return yuv2rgb_c_12_ordered_dither;
|
|
case AV_PIX_FMT_RGB8:
|
|
case AV_PIX_FMT_BGR8:
|
|
return yuv2rgb_c_8_ordered_dither;
|
|
case AV_PIX_FMT_RGB4:
|
|
case AV_PIX_FMT_BGR4:
|
|
return yuv2rgb_c_4_ordered_dither;
|
|
case AV_PIX_FMT_RGB4_BYTE:
|
|
case AV_PIX_FMT_BGR4_BYTE:
|
|
return yuv2rgb_c_4b_ordered_dither;
|
|
case AV_PIX_FMT_MONOBLACK:
|
|
return yuv2rgb_c_1_ordered_dither;
|
|
case AV_PIX_FMT_GBRP:
|
|
return yuv420p_gbrp_c;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
|
|
const int64_t inc, void *y_tab)
|
|
{
|
|
int i;
|
|
uint8_t *y_table = y_tab;
|
|
|
|
y_table -= elemsize * (inc >> 9);
|
|
|
|
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
|
|
int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
|
|
table[i] = y_table + elemsize * (cb >> 16);
|
|
}
|
|
}
|
|
|
|
static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc)
|
|
{
|
|
int i;
|
|
int off = -(inc >> 9);
|
|
|
|
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
|
|
int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
|
|
table[i] = elemsize * (off + (cb >> 16));
|
|
}
|
|
}
|
|
|
|
static uint16_t roundToInt16(int64_t f)
|
|
{
|
|
int r = (f + (1 << 15)) >> 16;
|
|
|
|
if (r < -0x7FFF)
|
|
return 0x8000;
|
|
else if (r > 0x7FFF)
|
|
return 0x7FFF;
|
|
else
|
|
return r;
|
|
}
|
|
|
|
av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
|
|
int fullRange, int brightness,
|
|
int contrast, int saturation)
|
|
{
|
|
const int isRgb = c->dstFormat == AV_PIX_FMT_RGB32 ||
|
|
c->dstFormat == AV_PIX_FMT_RGB32_1 ||
|
|
c->dstFormat == AV_PIX_FMT_BGR24 ||
|
|
c->dstFormat == AV_PIX_FMT_RGB565BE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB565LE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB555BE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB555LE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB444BE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB444LE ||
|
|
c->dstFormat == AV_PIX_FMT_X2RGB10BE ||
|
|
c->dstFormat == AV_PIX_FMT_X2RGB10LE ||
|
|
c->dstFormat == AV_PIX_FMT_RGB8 ||
|
|
c->dstFormat == AV_PIX_FMT_RGB4 ||
|
|
c->dstFormat == AV_PIX_FMT_RGB4_BYTE ||
|
|
c->dstFormat == AV_PIX_FMT_MONOBLACK;
|
|
const int isNotNe = c->dstFormat == AV_PIX_FMT_NE(RGB565LE, RGB565BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(RGB555LE, RGB555BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(RGB444LE, RGB444BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(BGR565LE, BGR565BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(BGR555LE, BGR555BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(BGR444LE, BGR444BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(X2RGB10LE, X2RGB10BE) ||
|
|
c->dstFormat == AV_PIX_FMT_NE(X2BGR10LE, X2BGR10BE);
|
|
const int bpp = c->dstFormatBpp;
|
|
uint8_t *y_table;
|
|
uint16_t *y_table16;
|
|
uint32_t *y_table32;
|
|
int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
|
|
const int yoffs = (fullRange ? 384 : 326) + YUVRGB_TABLE_LUMA_HEADROOM;
|
|
const int table_plane_size = 1024 + 2*YUVRGB_TABLE_LUMA_HEADROOM;
|
|
|
|
int64_t crv = inv_table[0];
|
|
int64_t cbu = inv_table[1];
|
|
int64_t cgu = -inv_table[2];
|
|
int64_t cgv = -inv_table[3];
|
|
int64_t cy = 1 << 16;
|
|
int64_t oy = 0;
|
|
int64_t yb = 0;
|
|
|
|
if (!fullRange) {
|
|
cy = (cy * 255) / 219;
|
|
oy = 16 << 16;
|
|
} else {
|
|
crv = (crv * 224) / 255;
|
|
cbu = (cbu * 224) / 255;
|
|
cgu = (cgu * 224) / 255;
|
|
cgv = (cgv * 224) / 255;
|
|
}
|
|
|
|
cy = (cy * contrast) >> 16;
|
|
crv = (crv * contrast * saturation) >> 32;
|
|
cbu = (cbu * contrast * saturation) >> 32;
|
|
cgu = (cgu * contrast * saturation) >> 32;
|
|
cgv = (cgv * contrast * saturation) >> 32;
|
|
oy -= 256LL * brightness;
|
|
|
|
c->uOffset = 0x0400040004000400LL;
|
|
c->vOffset = 0x0400040004000400LL;
|
|
c->yCoeff = roundToInt16(cy * (1 << 13)) * 0x0001000100010001ULL;
|
|
c->vrCoeff = roundToInt16(crv * (1 << 13)) * 0x0001000100010001ULL;
|
|
c->ubCoeff = roundToInt16(cbu * (1 << 13)) * 0x0001000100010001ULL;
|
|
c->vgCoeff = roundToInt16(cgv * (1 << 13)) * 0x0001000100010001ULL;
|
|
c->ugCoeff = roundToInt16(cgu * (1 << 13)) * 0x0001000100010001ULL;
|
|
c->yOffset = roundToInt16(oy * (1 << 3)) * 0x0001000100010001ULL;
|
|
|
|
c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy * (1 << 13));
|
|
c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy * (1 << 9));
|
|
c->yuv2rgb_v2r_coeff = (int16_t)roundToInt16(crv * (1 << 13));
|
|
c->yuv2rgb_v2g_coeff = (int16_t)roundToInt16(cgv * (1 << 13));
|
|
c->yuv2rgb_u2g_coeff = (int16_t)roundToInt16(cgu * (1 << 13));
|
|
c->yuv2rgb_u2b_coeff = (int16_t)roundToInt16(cbu * (1 << 13));
|
|
|
|
//scale coefficients by cy
|
|
crv = ((crv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
|
|
cbu = ((cbu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
|
|
cgu = ((cgu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
|
|
cgv = ((cgv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
|
|
|
|
av_freep(&c->yuvTable);
|
|
|
|
#define ALLOC_YUV_TABLE(x) \
|
|
c->yuvTable = av_malloc(x); \
|
|
if (!c->yuvTable) \
|
|
return AVERROR(ENOMEM);
|
|
switch (bpp) {
|
|
case 1:
|
|
ALLOC_YUV_TABLE(table_plane_size);
|
|
y_table = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size - 110; i++) {
|
|
y_table[i + 110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 4:
|
|
case 4 | 128:
|
|
rbase = isRgb ? 3 : 0;
|
|
gbase = 1;
|
|
bbase = isRgb ? 0 : 3;
|
|
ALLOC_YUV_TABLE(table_plane_size * 3);
|
|
y_table = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size - 110; i++) {
|
|
int yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table[i + 110] = (yval >> 7) << rbase;
|
|
y_table[i + 37 + table_plane_size] = ((yval + 43) / 85) << gbase;
|
|
y_table[i + 110 + 2*table_plane_size] = (yval >> 7) << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 8:
|
|
rbase = isRgb ? 5 : 0;
|
|
gbase = isRgb ? 2 : 3;
|
|
bbase = isRgb ? 0 : 6;
|
|
ALLOC_YUV_TABLE(table_plane_size * 3);
|
|
y_table = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size - 38; i++) {
|
|
int yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table[i + 16] = ((yval + 18) / 36) << rbase;
|
|
y_table[i + 16 + table_plane_size] = ((yval + 18) / 36) << gbase;
|
|
y_table[i + 37 + 2*table_plane_size] = ((yval + 43) / 85) << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 12:
|
|
rbase = isRgb ? 8 : 0;
|
|
gbase = 4;
|
|
bbase = isRgb ? 0 : 8;
|
|
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
|
|
y_table16 = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size; i++) {
|
|
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table16[i] = (yval >> 4) << rbase;
|
|
y_table16[i + table_plane_size] = (yval >> 4) << gbase;
|
|
y_table16[i + 2*table_plane_size] = (yval >> 4) << bbase;
|
|
yb += cy;
|
|
}
|
|
if (isNotNe)
|
|
for (i = 0; i < table_plane_size * 3; i++)
|
|
y_table16[i] = av_bswap16(y_table16[i]);
|
|
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
|
|
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
|
|
fill_gv_table(c->table_gV, 2, cgv);
|
|
break;
|
|
case 15:
|
|
case 16:
|
|
rbase = isRgb ? bpp - 5 : 0;
|
|
gbase = 5;
|
|
bbase = isRgb ? 0 : (bpp - 5);
|
|
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
|
|
y_table16 = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size; i++) {
|
|
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table16[i] = (yval >> 3) << rbase;
|
|
y_table16[i + table_plane_size] = (yval >> (18 - bpp)) << gbase;
|
|
y_table16[i + 2*table_plane_size] = (yval >> 3) << bbase;
|
|
yb += cy;
|
|
}
|
|
if (isNotNe)
|
|
for (i = 0; i < table_plane_size * 3; i++)
|
|
y_table16[i] = av_bswap16(y_table16[i]);
|
|
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
|
|
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
|
|
fill_gv_table(c->table_gV, 2, cgv);
|
|
break;
|
|
case 24:
|
|
case 48:
|
|
ALLOC_YUV_TABLE(table_plane_size);
|
|
y_table = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size; i++) {
|
|
y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 1, crv, y_table + yoffs);
|
|
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
|
|
fill_table(c->table_bU, 1, cbu, y_table + yoffs);
|
|
fill_gv_table(c->table_gV, 1, cgv);
|
|
break;
|
|
case 30:
|
|
rbase = isRgb ? 20 : 0;
|
|
gbase = 10;
|
|
bbase = isRgb ? 0 : 20;
|
|
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
|
|
if (!needAlpha)
|
|
abase = 30;
|
|
ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
|
|
y_table32 = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size; i++) {
|
|
unsigned yval = av_clip_uintp2((yb + 0x8000) >> 14, 10);
|
|
y_table32[i]= (yval << rbase) + (needAlpha ? 0 : (255u << abase));
|
|
y_table32[i + table_plane_size] = yval << gbase;
|
|
y_table32[i + 2 * table_plane_size] = yval << bbase;
|
|
yb += cy;
|
|
}
|
|
if (isNotNe) {
|
|
for (i = 0; i < table_plane_size * 3; i++)
|
|
y_table32[i] = av_bswap32(y_table32[i]);
|
|
}
|
|
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
|
|
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2 * table_plane_size);
|
|
fill_gv_table(c->table_gV, 4, cgv);
|
|
break;
|
|
case 32:
|
|
case 64:
|
|
base = (c->dstFormat == AV_PIX_FMT_RGB32_1 ||
|
|
c->dstFormat == AV_PIX_FMT_BGR32_1) ? 8 : 0;
|
|
rbase = base + (isRgb ? 16 : 0);
|
|
gbase = base + 8;
|
|
bbase = base + (isRgb ? 0 : 16);
|
|
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
|
|
if (!needAlpha)
|
|
abase = (base + 24) & 31;
|
|
ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
|
|
y_table32 = c->yuvTable;
|
|
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
|
|
for (i = 0; i < table_plane_size; i++) {
|
|
unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
|
|
y_table32[i] = (yval << rbase) +
|
|
(needAlpha ? 0 : (255u << abase));
|
|
y_table32[i + table_plane_size] = yval << gbase;
|
|
y_table32[i + 2*table_plane_size] = yval << bbase;
|
|
yb += cy;
|
|
}
|
|
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
|
|
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
|
|
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2*table_plane_size);
|
|
fill_gv_table(c->table_gV, 4, cgv);
|
|
break;
|
|
default:
|
|
if(!isPlanar(c->dstFormat) || bpp <= 24)
|
|
av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
return 0;
|
|
}
|