text: /*
   * 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 <stdio.h>
  #include <stdlib.h>
  #include <inttypes.h>
  
  #include "libavutil/bswap.h"
  #include "config.h"
  #include "rgb2rgb.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] = {
      { 117489, 138438, 13975, 34925 }, /* 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, i)                         \
      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, i)                       \
      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, i)                       \
      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, s)                                  \
      Y              = ysrc[2 * i];                                       \
      dst[2 * i]     = r[Y] + g[Y] + b[Y] + (asrc[2 * i]     << s);       \
      Y              = ysrc[2 * i + 1];                                   \
      dst[2 * i + 1] = r[Y] + g[Y] + b[Y] + (asrc[2 * i + 1] << s);
  
  #define PUTRGB48(dst, src, i)                       \
      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, i)                       \
      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 *pu   = src[1] + (y >> 1) * srcStride[1];         \
              const uint8_t *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)               \
      pu    += 4 >> ss;                               \
      pv    += 4 >> ss;                               \
      py_1  += 8 >> ss;                               \
      py_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 CLOSEYUV2RGBFUNC(dst_delta)                 \
      ENDYUV2RGBLINE(dst_delta, 0)                    \
      ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
      LOADCHROMA(0);
      PUTRGB48(dst_1, py_1, 0);
      PUTRGB48(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB48(dst_2, py_2, 1);
      PUTRGB48(dst_1, py_1, 1);
  
      LOADCHROMA(2);
      PUTRGB48(dst_1, py_1, 2);
      PUTRGB48(dst_2, py_2, 2);
  
      LOADCHROMA(3);
      PUTRGB48(dst_2, py_2, 3);
      PUTRGB48(dst_1, py_1, 3);
  ENDYUV2RGBLINE(48, 0)
      LOADCHROMA(0);
      PUTRGB48(dst_1, py_1, 0);
      PUTRGB48(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB48(dst_2, py_2, 1);
      PUTRGB48(dst_1, py_1, 1);
  ENDYUV2RGBLINE(48, 1)
      LOADCHROMA(0);
      PUTRGB48(dst_1, py_1, 0);
      PUTRGB48(dst_2, py_2, 0);
  ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
      LOADCHROMA(0);
      PUTBGR48(dst_1, py_1, 0);
      PUTBGR48(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTBGR48(dst_2, py_2, 1);
      PUTBGR48(dst_1, py_1, 1);
  
      LOADCHROMA(2);
      PUTBGR48(dst_1, py_1, 2);
      PUTBGR48(dst_2, py_2, 2);
  
      LOADCHROMA(3);
      PUTBGR48(dst_2, py_2, 3);
      PUTBGR48(dst_1, py_1, 3);
  ENDYUV2RGBLINE(48, 0)
      LOADCHROMA(0);
      PUTBGR48(dst_1, py_1, 0);
      PUTBGR48(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTBGR48(dst_2, py_2, 1);
      PUTBGR48(dst_1, py_1, 1);
  ENDYUV2RGBLINE(48, 1)
      LOADCHROMA(0);
      PUTBGR48(dst_1, py_1, 0);
      PUTBGR48(dst_2, py_2, 0);
  ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
      LOADCHROMA(0);
      PUTRGB(dst_1, py_1, 0);
      PUTRGB(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB(dst_2, py_2, 1);
      PUTRGB(dst_1, py_1, 1);
  
      LOADCHROMA(2);
      PUTRGB(dst_1, py_1, 2);
      PUTRGB(dst_2, py_2, 2);
  
      LOADCHROMA(3);
      PUTRGB(dst_2, py_2, 3);
      PUTRGB(dst_1, py_1, 3);
  ENDYUV2RGBLINE(8, 0)
      LOADCHROMA(0);
      PUTRGB(dst_1, py_1, 0);
      PUTRGB(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB(dst_2, py_2, 1);
      PUTRGB(dst_1, py_1, 1);
  ENDYUV2RGBLINE(8, 1)
      LOADCHROMA(0);
      PUTRGB(dst_1, py_1, 0);
      PUTRGB(dst_2, py_2, 0);
  ENDYUV2RGBFUNC()
  
  #if HAVE_BIGENDIAN
  YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
  #else
  YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
  #endif
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 24);
      PUTRGBA(dst_2, py_2, pa_2, 0, 24);
  
      LOADCHROMA(1);
      PUTRGBA(dst_2, py_2, pa_2, 1, 24);
      PUTRGBA(dst_1, py_1, pa_1, 1, 24);
  
      LOADCHROMA(2);
      PUTRGBA(dst_1, py_1, pa_1, 2, 24);
      PUTRGBA(dst_2, py_2, pa_2, 2, 24);
  
      LOADCHROMA(3);
      PUTRGBA(dst_2, py_2, pa_2, 3, 24);
      PUTRGBA(dst_1, py_1, pa_1, 3, 24);
      pa_1 += 8;
      pa_2 += 8;
  ENDYUV2RGBLINE(8, 0)
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 24);
      PUTRGBA(dst_2, py_2, pa_2, 0, 24);
  
      LOADCHROMA(1);
      PUTRGBA(dst_2, py_2, pa_2, 1, 24);
      PUTRGBA(dst_1, py_1, pa_1, 1, 24);
      pa_1 += 4;
      pa_2 += 4;
  ENDYUV2RGBLINE(8, 1)
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 24);
      PUTRGBA(dst_2, py_2, pa_2, 0, 24);
  ENDYUV2RGBFUNC()
  
  #if HAVE_BIGENDIAN
  YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
  #else
  YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
  #endif
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 0);
      PUTRGBA(dst_2, py_2, pa_2, 0, 0);
  
      LOADCHROMA(1);
      PUTRGBA(dst_2, py_2, pa_2, 1, 0);
      PUTRGBA(dst_1, py_1, pa_1, 1, 0);
  
      LOADCHROMA(2);
      PUTRGBA(dst_1, py_1, pa_1, 2, 0);
      PUTRGBA(dst_2, py_2, pa_2, 2, 0);
  
      LOADCHROMA(3);
      PUTRGBA(dst_2, py_2, pa_2, 3, 0);
      PUTRGBA(dst_1, py_1, pa_1, 3, 0);
      pa_1 += 8;
      pa_2 += 8;
  ENDYUV2RGBLINE(8, 0)
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 0);
      PUTRGBA(dst_2, py_2, pa_2, 0, 0);
  
      LOADCHROMA(1);
      PUTRGBA(dst_2, py_2, pa_2, 1, 0);
      PUTRGBA(dst_1, py_1, pa_1, 1, 0);
      pa_1 += 4;
      pa_2 += 4;
  ENDYUV2RGBLINE(8, 1)
      LOADCHROMA(0);
      PUTRGBA(dst_1, py_1, pa_1, 0, 0);
      PUTRGBA(dst_2, py_2, pa_2, 0, 0);
  ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
      LOADCHROMA(0);
      PUTRGB24(dst_1, py_1, 0);
      PUTRGB24(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB24(dst_2, py_2, 1);
      PUTRGB24(dst_1, py_1, 1);
  
      LOADCHROMA(2);
      PUTRGB24(dst_1, py_1, 2);
      PUTRGB24(dst_2, py_2, 2);
  
      LOADCHROMA(3);
      PUTRGB24(dst_2, py_2, 3);
      PUTRGB24(dst_1, py_1, 3);
  ENDYUV2RGBLINE(24, 0)
      LOADCHROMA(0);
      PUTRGB24(dst_1, py_1, 0);
      PUTRGB24(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTRGB24(dst_2, py_2, 1);
      PUTRGB24(dst_1, py_1, 1);
  ENDYUV2RGBLINE(24, 1)
      LOADCHROMA(0);
      PUTRGB24(dst_1, py_1, 0);
      PUTRGB24(dst_2, py_2, 0);
  ENDYUV2RGBFUNC()
  
  // only trivial mods from yuv2rgb_c_24_rgb
  YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
      LOADCHROMA(0);
      PUTBGR24(dst_1, py_1, 0);
      PUTBGR24(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTBGR24(dst_2, py_2, 1);
      PUTBGR24(dst_1, py_1, 1);
  
      LOADCHROMA(2);
      PUTBGR24(dst_1, py_1, 2);
      PUTBGR24(dst_2, py_2, 2);
  
      LOADCHROMA(3);
      PUTBGR24(dst_2, py_2, 3);
      PUTBGR24(dst_1, py_1, 3);
  ENDYUV2RGBLINE(24, 0)
      LOADCHROMA(0);
      PUTBGR24(dst_1, py_1, 0);
      PUTBGR24(dst_2, py_2, 0);
  
      LOADCHROMA(1);
      PUTBGR24(dst_2, py_2, 1);
      PUTBGR24(dst_1, py_1, 1);
  ENDYUV2RGBLINE(24, 1)
      LOADCHROMA(0);
      PUTBGR24(dst_1, py_1, 0);
      PUTBGR24(dst_2, py_2, 0);
  ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_16_ordered_dither, uint16_t, 0)
      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]];
      LOADCHROMA(0);
      PUTRGB16(dst_1, py_1, 0, 0);
      PUTRGB16(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB16(dst_2, py_2, 1, 2 + 8);
      PUTRGB16(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB16(dst_1, py_1, 2, 4);
      PUTRGB16(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB16(dst_2, py_2, 3, 6 + 8);
      PUTRGB16(dst_1, py_1, 3, 6);
  CLOSEYUV2RGBFUNC(8)
  
  YUV2RGBFUNC(yuv2rgb_c_15_ordered_dither, uint16_t, 0)
      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]];
      LOADCHROMA(0);
      PUTRGB15(dst_1, py_1, 0, 0);
      PUTRGB15(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB15(dst_2, py_2, 1, 2 + 8);
      PUTRGB15(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB15(dst_1, py_1, 2, 4);
      PUTRGB15(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB15(dst_2, py_2, 3, 6 + 8);
      PUTRGB15(dst_1, py_1, 3, 6);
  CLOSEYUV2RGBFUNC(8)
  
  // r, g, b, dst_1, dst_2
  YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
      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]];
  
      LOADCHROMA(0);
      PUTRGB12(dst_1, py_1, 0, 0);
      PUTRGB12(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB12(dst_2, py_2, 1, 2 + 8);
      PUTRGB12(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB12(dst_1, py_1, 2, 4);
      PUTRGB12(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB12(dst_2, py_2, 3, 6 + 8);
      PUTRGB12(dst_1, py_1, 3, 6);
  CLOSEYUV2RGBFUNC(8)
  
  // r, g, b, dst_1, dst_2
  YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
      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]];
  
      LOADCHROMA(0);
      PUTRGB8(dst_1, py_1, 0, 0);
      PUTRGB8(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB8(dst_2, py_2, 1, 2 + 8);
      PUTRGB8(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB8(dst_1, py_1, 2, 4);
      PUTRGB8(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB8(dst_2, py_2, 3, 6 + 8);
      PUTRGB8(dst_1, py_1, 3, 6);
  
  ENDYUV2RGBLINE(8, 0)
      const uint8_t *d32 = ff_dither_8x8_32[yd & 7];
      const uint8_t *d64 = ff_dither_8x8_73[yd & 7];
      LOADCHROMA(0);
      PUTRGB8(dst_1, py_1, 0, 0);
      PUTRGB8(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB8(dst_2, py_2, 1, 2 + 8);
      PUTRGB8(dst_1, py_1, 1, 2);
  
  ENDYUV2RGBLINE(8, 1)
      const uint8_t *d32 = ff_dither_8x8_32[yd & 7];
      const uint8_t *d64 = ff_dither_8x8_73[yd & 7];
      LOADCHROMA(0);
      PUTRGB8(dst_1, py_1, 0, 0);
      PUTRGB8(dst_2, py_2, 0, 0 + 8);
  
  ENDYUV2RGBFUNC()
  
  
  YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
      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;
  
      LOADCHROMA(0);
      PUTRGB4D(dst_1, py_1, 0, 0);
      PUTRGB4D(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB4D(dst_2, py_2, 1, 2 + 8);
      PUTRGB4D(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB4D(dst_1, py_1, 2, 4);
      PUTRGB4D(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB4D(dst_2, py_2, 3, 6 + 8);
      PUTRGB4D(dst_1, py_1, 3, 6);
  
  ENDYUV2RGBLINE(4, 0)
      const uint8_t * d64 = ff_dither_8x8_73[yd & 7];
      const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
      int acc;
      LOADCHROMA(0);
      PUTRGB4D(dst_1, py_1, 0, 0);
      PUTRGB4D(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB4D(dst_2, py_2, 1, 2 + 8);
      PUTRGB4D(dst_1, py_1, 1, 2);
  
  ENDYUV2RGBLINE(4, 1)
      const uint8_t * d64 = ff_dither_8x8_73[yd & 7];
      const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
      int acc;
      LOADCHROMA(0);
      PUTRGB4D(dst_1, py_1, 0, 0);
      PUTRGB4D(dst_2, py_2, 0, 0 + 8);
  ENDYUV2RGBFUNC()
  
  YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
      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]];
  
      LOADCHROMA(0);
      PUTRGB4DB(dst_1, py_1, 0, 0);
      PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB4DB(dst_2, py_2, 1, 2 + 8);
      PUTRGB4DB(dst_1, py_1, 1, 2);
  
      LOADCHROMA(2);
      PUTRGB4DB(dst_1, py_1, 2, 4);
      PUTRGB4DB(dst_2, py_2, 2, 4 + 8);
  
      LOADCHROMA(3);
      PUTRGB4DB(dst_2, py_2, 3, 6 + 8);
      PUTRGB4DB(dst_1, py_1, 3, 6);
  ENDYUV2RGBLINE(8, 0)
      const uint8_t *d64  = ff_dither_8x8_73[yd & 7];
      const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
      LOADCHROMA(0);
      PUTRGB4DB(dst_1, py_1, 0, 0);
      PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
  
      LOADCHROMA(1);
      PUTRGB4DB(dst_2, py_2, 1, 2 + 8);
      PUTRGB4DB(dst_1, py_1, 1, 2);
  ENDYUV2RGBLINE(8, 1)
      const uint8_t *d64  = ff_dither_8x8_73[yd & 7];
      const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
      LOADCHROMA(0);
      PUTRGB4DB(dst_1, py_1, 0, 0);
      PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
  ENDYUV2RGBFUNC()
  
  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;
  CLOSEYUV2RGBFUNC(1)
  
  SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
  {
      SwsFunc t = NULL;
  
      if (ARCH_PPC)
          t = ff_yuv2rgb_init_ppc(c);
      if (ARCH_X86)
          t = ff_yuv2rgb_init_x86(c);
  
      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  -= 256 * 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;
  }
  