/* * software YUV to RGB converter * * Copyright (C) 2009 Konstantin Shishkov * * 1,4,8bpp support and context / deglobalize stuff * by 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 #include #include "libavutil/bswap.h" #include "libavutil/mem.h" #include "config.h" #include "swscale.h" #include "swscale_internal.h" #include "libavutil/pixdesc.h" /* Color space conversion coefficients for YCbCr -> RGB mapping. * * Entries are {crv, cbu, cgu, cgv} * * crv = (255 / 224) * 65536 * (1 - cr) / 0.5 * cbu = (255 / 224) * 65536 * (1 - cb) / 0.5 * cgu = (255 / 224) * 65536 * (cb / cg) * (1 - cb) / 0.5 * cgv = (255 / 224) * 65536 * (cr / cg) * (1 - cr) / 0.5 * * where Y = cr * R + cg * G + cb * B and cr + cg + cb = 1. */ const int32_t ff_yuv2rgb_coeffs[11][4] = { { 104597, 132201, 25675, 53279 }, /* no sequence_display_extension */ { 117489, 138438, 13975, 34925 }, /* ITU-R Rec. 709 (1990) */ { 104597, 132201, 25675, 53279 }, /* unspecified */ { 104597, 132201, 25675, 53279 }, /* reserved */ { 104448, 132798, 24759, 53109 }, /* FCC */ { 104597, 132201, 25675, 53279 }, /* ITU-R Rec. 624-4 System B, G */ { 104597, 132201, 25675, 53279 }, /* SMPTE 170M */ { 117579, 136230, 16907, 35559 }, /* SMPTE 240M (1987) */ { 0 }, /* YCgCo */ { 110013, 140363, 12277, 42626 }, /* Bt-2020-NCL */ { 110013, 140363, 12277, 42626 }, /* Bt-2020-CL */ }; const int *sws_getCoefficients(int colorspace) { if (colorspace > 10 || colorspace < 0 || colorspace == 8) colorspace = SWS_CS_DEFAULT; return ff_yuv2rgb_coeffs[colorspace]; } #define LOADCHROMA(i) \ U = pu[i]; \ V = pv[i]; \ r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; #define PUTRGB(dst, src, asrc, i, abase) \ Y = src[2 * i]; \ dst[2 * i] = r[Y] + g[Y] + b[Y]; \ Y = src[2 * i + 1]; \ dst[2 * i + 1] = r[Y] + g[Y] + b[Y]; #define PUTRGB24(dst, src, asrc, i, abase) \ Y = src[2 * i]; \ dst[6 * i + 0] = r[Y]; \ dst[6 * i + 1] = g[Y]; \ dst[6 * i + 2] = b[Y]; \ Y = src[2 * i + 1]; \ dst[6 * i + 3] = r[Y]; \ dst[6 * i + 4] = g[Y]; \ dst[6 * i + 5] = b[Y]; #define PUTBGR24(dst, src, asrc, i, abase) \ Y = src[2 * i]; \ dst[6 * i + 0] = b[Y]; \ dst[6 * i + 1] = g[Y]; \ dst[6 * i + 2] = r[Y]; \ Y = src[2 * i + 1]; \ dst[6 * i + 3] = b[Y]; \ dst[6 * i + 4] = g[Y]; \ dst[6 * i + 5] = r[Y]; #define PUTRGBA(dst, ysrc, asrc, i, abase) \ Y = ysrc[2 * i]; \ dst[2 * i] = r[Y] + g[Y] + b[Y] + (asrc[2 * i] << abase); \ Y = ysrc[2 * i + 1]; \ dst[2 * i + 1] = r[Y] + g[Y] + b[Y] + (asrc[2 * i + 1] << abase); #define PUTRGB48(dst, src, asrc, i, abase) \ Y = src[ 2 * i]; \ dst[12 * i + 0] = dst[12 * i + 1] = r[Y]; \ dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \ dst[12 * i + 4] = dst[12 * i + 5] = b[Y]; \ Y = src[ 2 * i + 1]; \ dst[12 * i + 6] = dst[12 * i + 7] = r[Y]; \ dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \ dst[12 * i + 10] = dst[12 * i + 11] = b[Y]; #define PUTBGR48(dst, src, asrc, i, abase) \ Y = src[2 * i]; \ dst[12 * i + 0] = dst[12 * i + 1] = b[Y]; \ dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \ dst[12 * i + 4] = dst[12 * i + 5] = r[Y]; \ Y = src[2 * i + 1]; \ dst[12 * i + 6] = dst[12 * i + 7] = b[Y]; \ dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \ dst[12 * i + 10] = dst[12 * i + 11] = r[Y]; #define YUV2RGBFUNC(func_name, dst_type, alpha) \ static int func_name(SwsContext *c, const uint8_t *src[], \ int srcStride[], int srcSliceY, int srcSliceH, \ uint8_t *dst[], int dstStride[]) \ { \ int y; \ \ if (!alpha && c->srcFormat == AV_PIX_FMT_YUV422P) { \ srcStride[1] *= 2; \ srcStride[2] *= 2; \ } \ for (y = 0; y < srcSliceH; y += 2) { \ int yd = y + srcSliceY; \ dst_type *dst_1 = \ (dst_type *)(dst[0] + (yd) * dstStride[0]); \ dst_type *dst_2 = \ (dst_type *)(dst[0] + (yd + 1) * dstStride[0]); \ dst_type av_unused *r, *g, *b; \ const uint8_t *py_1 = src[0] + y * srcStride[0]; \ const uint8_t *py_2 = py_1 + srcStride[0]; \ const uint8_t av_unused *pu = src[1] + (y >> 1) * srcStride[1]; \ const uint8_t av_unused *pv = src[2] + (y >> 1) * srcStride[2]; \ const uint8_t av_unused *pa_1, *pa_2; \ unsigned int h_size = c->dstW >> 3; \ if (alpha) { \ pa_1 = src[3] + y * srcStride[3]; \ pa_2 = pa_1 + srcStride[3]; \ } \ while (h_size--) { \ int av_unused U, V, Y; \ #define ENDYUV2RGBLINE(dst_delta, ss, alpha) \ pu += 4 >> ss; \ pv += 4 >> ss; \ py_1 += 8 >> ss; \ py_2 += 8 >> ss; \ if (alpha) { \ pa_1 += 8 >> ss; \ pa_2 += 8 >> ss; \ } \ dst_1 += dst_delta >> ss; \ dst_2 += dst_delta >> ss; \ } \ if (c->dstW & (4 >> ss)) { \ int av_unused Y, U, V; \ #define ENDYUV2RGBFUNC() \ } \ } \ return srcSliceH; \ } #define YUV420FUNC(func_name, dst_type, alpha, abase, PUTFUNC, dst_delta) \ YUV2RGBFUNC(func_name, dst_type, alpha) \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, pa_1, 0, abase); \ PUTFUNC(dst_2, py_2, pa_2, 0, abase); \ \ LOADCHROMA(1); \ PUTFUNC(dst_2, py_2, pa_2, 1, abase); \ PUTFUNC(dst_1, py_1, pa_1, 1, abase); \ \ LOADCHROMA(2); \ PUTFUNC(dst_1, py_1, pa_1, 2, abase); \ PUTFUNC(dst_2, py_2, pa_2, 2, abase); \ \ LOADCHROMA(3); \ PUTFUNC(dst_2, py_2, pa_2, 3, abase); \ PUTFUNC(dst_1, py_1, pa_1, 3, abase); \ ENDYUV2RGBLINE(dst_delta, 0, alpha) \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, pa_1, 0, abase); \ PUTFUNC(dst_2, py_2, pa_2, 0, abase); \ \ LOADCHROMA(1); \ PUTFUNC(dst_2, py_2, pa_2, 1, abase); \ PUTFUNC(dst_1, py_1, pa_1, 1, abase); \ ENDYUV2RGBLINE(dst_delta, 1, alpha) \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, pa_1, 0, abase); \ PUTFUNC(dst_2, py_2, pa_2, 0, abase); \ ENDYUV2RGBFUNC() #define YUV420FUNC_DITHER(func_name, dst_type, LOADDITHER, PUTFUNC, dst_delta) \ YUV2RGBFUNC(func_name, dst_type, 0) \ LOADDITHER \ \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, 0, 0); \ PUTFUNC(dst_2, py_2, 0, 0 + 8); \ \ LOADCHROMA(1); \ PUTFUNC(dst_2, py_2, 1, 2 + 8); \ PUTFUNC(dst_1, py_1, 1, 2); \ \ LOADCHROMA(2); \ PUTFUNC(dst_1, py_1, 2, 4); \ PUTFUNC(dst_2, py_2, 2, 4 + 8); \ \ LOADCHROMA(3); \ PUTFUNC(dst_2, py_2, 3, 6 + 8); \ PUTFUNC(dst_1, py_1, 3, 6); \ ENDYUV2RGBLINE(dst_delta, 0, 0) \ LOADDITHER \ \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, 0, 0); \ PUTFUNC(dst_2, py_2, 0, 0 + 8); \ \ LOADCHROMA(1); \ PUTFUNC(dst_2, py_2, 1, 2 + 8); \ PUTFUNC(dst_1, py_1, 1, 2); \ ENDYUV2RGBLINE(dst_delta, 1, 0) \ LOADDITHER \ \ LOADCHROMA(0); \ PUTFUNC(dst_1, py_1, 0, 0); \ PUTFUNC(dst_2, py_2, 0, 0 + 8); \ ENDYUV2RGBFUNC() #define LOADDITHER16 \ const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \ const uint8_t *e16 = ff_dither_2x2_4[y & 1]; \ const uint8_t *f16 = ff_dither_2x2_8[(y & 1)^1]; #define PUTRGB16(dst, src, i, o) \ Y = src[2 * i]; \ dst[2 * i] = r[Y + d16[0 + o]] + \ g[Y + e16[0 + o]] + \ b[Y + f16[0 + o]]; \ Y = src[2 * i + 1]; \ dst[2 * i + 1] = r[Y + d16[1 + o]] + \ g[Y + e16[1 + o]] + \ b[Y + f16[1 + o]]; #define LOADDITHER15 \ const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \ const uint8_t *e16 = ff_dither_2x2_8[(y & 1)^1]; #define PUTRGB15(dst, src, i, o) \ Y = src[2 * i]; \ dst[2 * i] = r[Y + d16[0 + o]] + \ g[Y + d16[1 + o]] + \ b[Y + e16[0 + o]]; \ Y = src[2 * i + 1]; \ dst[2 * i + 1] = r[Y + d16[1 + o]] + \ g[Y + d16[0 + o]] + \ b[Y + e16[1 + o]]; #define LOADDITHER12 \ const uint8_t *d16 = ff_dither_4x4_16[y & 3]; #define PUTRGB12(dst, src, i, o) \ Y = src[2 * i]; \ dst[2 * i] = r[Y + d16[0 + o]] + \ g[Y + d16[0 + o]] + \ b[Y + d16[0 + o]]; \ Y = src[2 * i + 1]; \ dst[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(dst, src, i, o) \ Y = src[2 * i]; \ dst[2 * i] = r[Y + d32[0 + o]] + \ g[Y + d32[0 + o]] + \ b[Y + d64[0 + o]]; \ Y = src[2 * i + 1]; \ dst[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(dst, src, i, o) \ Y = src[2 * i]; \ acc = r[Y + d128[0 + o]] + \ g[Y + d64[0 + o]] + \ b[Y + d128[0 + o]]; \ Y = src[2 * i + 1]; \ acc |= (r[Y + d128[1 + o]] + \ g[Y + d64[1 + o]] + \ b[Y + d128[1 + o]]) << 4; \ dst[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(dst, src, i, o) \ Y = src[2 * i]; \ dst[2 * i] = r[Y + d128[0 + o]] + \ g[Y + d64[0 + o]] + \ b[Y + d128[0 + o]]; \ Y = src[2 * i + 1]; \ dst[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) 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() YUV420FUNC(yuv2rgb_c_48, uint8_t, 0, 0, PUTRGB48, 48) YUV420FUNC(yuv2rgb_c_bgr48, uint8_t, 0, 0, PUTBGR48, 48) YUV420FUNC(yuv2rgb_c_32, uint32_t, 0, 0, PUTRGB, 8) #if HAVE_BIGENDIAN YUV420FUNC(yuva2argb_c, uint32_t, 1, 24, PUTRGBA, 8) YUV420FUNC(yuva2rgba_c, uint32_t, 1, 0, PUTRGBA, 8) #else YUV420FUNC(yuva2rgba_c, uint32_t, 1, 24, PUTRGBA, 8) YUV420FUNC(yuva2argb_c, uint32_t, 1, 0, PUTRGBA, 8) #endif YUV420FUNC(yuv2rgb_c_24_rgb, uint8_t, 0, 0, PUTRGB24, 24) YUV420FUNC(yuv2rgb_c_24_bgr, uint8_t, 0, 0, PUTBGR24, 24) 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) 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)); 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; } 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; }