text: /*
   * Copyright (C) 2001-2012 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 <assert.h>
  #include <math.h>
  #include <stdint.h>
  #include <stdio.h>
  #include <string.h>
  
  #include "libavutil/avutil.h"
  #include "libavutil/bswap.h"
  #include "libavutil/cpu.h"
  #include "libavutil/intreadwrite.h"
  #include "libavutil/mathematics.h"
  #include "libavutil/pixdesc.h"
  #include "libavutil/avassert.h"
  #include "config.h"
  #include "rgb2rgb.h"
  #include "swscale.h"
  #include "swscale_internal.h"
  
  #define input_pixel(pos) (isBE(origin) ? AV_RB16(pos) : AV_RL16(pos))
  
  #define r ((origin == AV_PIX_FMT_BGR48BE || origin == AV_PIX_FMT_BGR48LE) ? b_r : r_b)
  #define b ((origin == AV_PIX_FMT_BGR48BE || origin == AV_PIX_FMT_BGR48LE) ? r_b : b_r)
  
  static av_always_inline void
  rgb64ToY_c_template(uint16_t *dst, const uint16_t *src, int width,
                      enum AVPixelFormat origin, int32_t *rgb2yuv)
  {
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      int i;
      for (i = 0; i < width; i++) {
          unsigned int r_b = input_pixel(&src[i*4+0]);
          unsigned int   g = input_pixel(&src[i*4+1]);
          unsigned int b_r = input_pixel(&src[i*4+2]);
  
          dst[i] = (ry*r + gy*g + by*b + (0x2001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
      }
  }
  
  static av_always_inline void
  rgb64ToUV_c_template(uint16_t *dstU, uint16_t *dstV,
                      const uint16_t *src1, const uint16_t *src2,
                      int width, enum AVPixelFormat origin, int32_t *rgb2yuv)
  {
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1==src2);
      for (i = 0; i < width; i++) {
          int r_b = input_pixel(&src1[i*4+0]);
          int   g = input_pixel(&src1[i*4+1]);
          int b_r = input_pixel(&src1[i*4+2]);
  
          dstU[i] = (ru*r + gu*g + bu*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
          dstV[i] = (rv*r + gv*g + bv*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
      }
  }
  
  static av_always_inline void
  rgb64ToUV_half_c_template(uint16_t *dstU, uint16_t *dstV,
                            const uint16_t *src1, const uint16_t *src2,
                            int width, enum AVPixelFormat origin, int32_t *rgb2yuv)
  {
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1==src2);
      for (i = 0; i < width; i++) {
          int r_b = (input_pixel(&src1[8 * i + 0]) + input_pixel(&src1[8 * i + 4]) + 1) >> 1;
          int   g = (input_pixel(&src1[8 * i + 1]) + input_pixel(&src1[8 * i + 5]) + 1) >> 1;
          int b_r = (input_pixel(&src1[8 * i + 2]) + input_pixel(&src1[8 * i + 6]) + 1) >> 1;
  
          dstU[i]= (ru*r + gu*g + bu*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
          dstV[i]= (rv*r + gv*g + bv*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
      }
  }
  
  #define rgb64funcs(pattern, BE_LE, origin) \
  static void pattern ## 64 ## BE_LE ## ToY_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused0, const uint8_t *unused1,\
                                      int width, uint32_t *rgb2yuv) \
  { \
      const uint16_t *src = (const uint16_t *) _src; \
      uint16_t *dst = (uint16_t *) _dst; \
      rgb64ToY_c_template(dst, src, width, origin, rgb2yuv); \
  } \
   \
  static void pattern ## 64 ## BE_LE ## ToUV_c(uint8_t *_dstU, uint8_t *_dstV, \
                                      const uint8_t *unused0, const uint8_t *_src1, const uint8_t *_src2, \
                                      int width, uint32_t *rgb2yuv) \
  { \
      const uint16_t *src1 = (const uint16_t *) _src1, \
                     *src2 = (const uint16_t *) _src2; \
      uint16_t *dstU = (uint16_t *) _dstU, *dstV = (uint16_t *) _dstV; \
      rgb64ToUV_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
  } \
   \
  static void pattern ## 64 ## BE_LE ## ToUV_half_c(uint8_t *_dstU, uint8_t *_dstV, \
                                      const uint8_t *unused0, const uint8_t *_src1, const uint8_t *_src2, \
                                      int width, uint32_t *rgb2yuv) \
  { \
      const uint16_t *src1 = (const uint16_t *) _src1, \
                     *src2 = (const uint16_t *) _src2; \
      uint16_t *dstU = (uint16_t *) _dstU, *dstV = (uint16_t *) _dstV; \
      rgb64ToUV_half_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
  }
  
  rgb64funcs(rgb, LE, AV_PIX_FMT_RGBA64LE)
  rgb64funcs(rgb, BE, AV_PIX_FMT_RGBA64BE)
  
  static av_always_inline void rgb48ToY_c_template(uint16_t *dst,
                                                   const uint16_t *src, int width,
                                                   enum AVPixelFormat origin,
                                                   int32_t *rgb2yuv)
  {
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      int i;
      for (i = 0; i < width; i++) {
          unsigned int r_b = input_pixel(&src[i * 3 + 0]);
          unsigned int g   = input_pixel(&src[i * 3 + 1]);
          unsigned int b_r = input_pixel(&src[i * 3 + 2]);
  
          dst[i] = (ry*r + gy*g + by*b + (0x2001 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT;
      }
  }
  
  static av_always_inline void rgb48ToUV_c_template(uint16_t *dstU,
                                                    uint16_t *dstV,
                                                    const uint16_t *src1,
                                                    const uint16_t *src2,
                                                    int width,
                                                    enum AVPixelFormat origin,
                                                    int32_t *rgb2yuv)
  {
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1 == src2);
      for (i = 0; i < width; i++) {
          int r_b = input_pixel(&src1[i * 3 + 0]);
          int g   = input_pixel(&src1[i * 3 + 1]);
          int b_r = input_pixel(&src1[i * 3 + 2]);
  
          dstU[i] = (ru*r + gu*g + bu*b + (0x10001 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT;
          dstV[i] = (rv*r + gv*g + bv*b + (0x10001 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT;
      }
  }
  
  static av_always_inline void rgb48ToUV_half_c_template(uint16_t *dstU,
                                                         uint16_t *dstV,
                                                         const uint16_t *src1,
                                                         const uint16_t *src2,
                                                         int width,
                                                         enum AVPixelFormat origin,
                                                         int32_t *rgb2yuv)
  {
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1 == src2);
      for (i = 0; i < width; i++) {
          int r_b = (input_pixel(&src1[6 * i + 0]) +
                     input_pixel(&src1[6 * i + 3]) + 1) >> 1;
          int g   = (input_pixel(&src1[6 * i + 1]) +
                     input_pixel(&src1[6 * i + 4]) + 1) >> 1;
          int b_r = (input_pixel(&src1[6 * i + 2]) +
                     input_pixel(&src1[6 * i + 5]) + 1) >> 1;
  
          dstU[i] = (ru*r + gu*g + bu*b + (0x10001 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT;
          dstV[i] = (rv*r + gv*g + bv*b + (0x10001 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT;
      }
  }
  
  #undef r
  #undef b
  #undef input_pixel
  
  #define rgb48funcs(pattern, BE_LE, origin)                              \
  static void pattern ## 48 ## BE_LE ## ToY_c(uint8_t *_dst,              \
                                              const uint8_t *_src,        \
                                              const uint8_t *unused0, const uint8_t *unused1,\
                                              int width,                  \
                                              uint32_t *rgb2yuv)          \
  {                                                                       \
      const uint16_t *src = (const uint16_t *)_src;                       \
      uint16_t *dst       = (uint16_t *)_dst;                             \
      rgb48ToY_c_template(dst, src, width, origin, rgb2yuv);              \
  }                                                                       \
                                                                          \
  static void pattern ## 48 ## BE_LE ## ToUV_c(uint8_t *_dstU,            \
                                               uint8_t *_dstV,            \
                                               const uint8_t *unused0,    \
                                               const uint8_t *_src1,      \
                                               const uint8_t *_src2,      \
                                               int width,                 \
                                               uint32_t *rgb2yuv)         \
  {                                                                       \
      const uint16_t *src1 = (const uint16_t *)_src1,                     \
                     *src2 = (const uint16_t *)_src2;                     \
      uint16_t *dstU = (uint16_t *)_dstU,                                 \
               *dstV = (uint16_t *)_dstV;                                 \
      rgb48ToUV_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv);        \
  }                                                                       \
                                                                          \
  static void pattern ## 48 ## BE_LE ## ToUV_half_c(uint8_t *_dstU,       \
                                                    uint8_t *_dstV,       \
                                                    const uint8_t *unused0,    \
                                                    const uint8_t *_src1, \
                                                    const uint8_t *_src2, \
                                                    int width,            \
                                                    uint32_t *rgb2yuv)    \
  {                                                                       \
      const uint16_t *src1 = (const uint16_t *)_src1,                     \
                     *src2 = (const uint16_t *)_src2;                     \
      uint16_t *dstU = (uint16_t *)_dstU,                                 \
               *dstV = (uint16_t *)_dstV;                                 \
      rgb48ToUV_half_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv);   \
  }
  
  rgb48funcs(rgb, LE, AV_PIX_FMT_RGB48LE)
  rgb48funcs(rgb, BE, AV_PIX_FMT_RGB48BE)
  rgb48funcs(bgr, LE, AV_PIX_FMT_BGR48LE)
  rgb48funcs(bgr, BE, AV_PIX_FMT_BGR48BE)
  
  #define input_pixel(i) ((origin == AV_PIX_FMT_RGBA ||                      \
                           origin == AV_PIX_FMT_BGRA ||                      \
                           origin == AV_PIX_FMT_ARGB ||                      \
                           origin == AV_PIX_FMT_ABGR)                        \
                          ? AV_RN32A(&src[(i) * 4])                       \
                          : (isBE(origin) ? AV_RB16(&src[(i) * 2])        \
                                          : AV_RL16(&src[(i) * 2])))
  
  static av_always_inline void rgb16_32ToY_c_template(int16_t *dst,
                                                      const uint8_t *src,
                                                      int width,
                                                      enum AVPixelFormat origin,
                                                      int shr, int shg,
                                                      int shb, int shp,
                                                      int maskr, int maskg,
                                                      int maskb, int rsh,
                                                      int gsh, int bsh, int S,
                                                      int32_t *rgb2yuv)
  {
      const int ry       = rgb2yuv[RY_IDX]<<rsh, gy = rgb2yuv[GY_IDX]<<gsh, by = rgb2yuv[BY_IDX]<<bsh;
      const unsigned rnd = (32<<((S)-1)) + (1<<(S-7));
      int i;
  
      for (i = 0; i < width; i++) {
          int px = input_pixel(i) >> shp;
          int b  = (px & maskb) >> shb;
          int g  = (px & maskg) >> shg;
          int r  = (px & maskr) >> shr;
  
          dst[i] = (ry * r + gy * g + by * b + rnd) >> ((S)-6);
      }
  }
  
  static av_always_inline void rgb16_32ToUV_c_template(int16_t *dstU,
                                                       int16_t *dstV,
                                                       const uint8_t *src,
                                                       int width,
                                                       enum AVPixelFormat origin,
                                                       int shr, int shg,
                                                       int shb, int shp,
                                                       int maskr, int maskg,
                                                       int maskb, int rsh,
                                                       int gsh, int bsh, int S,
                                                       int32_t *rgb2yuv)
  {
      const int ru       = rgb2yuv[RU_IDX] << rsh, gu = rgb2yuv[GU_IDX] << gsh, bu = rgb2yuv[BU_IDX] << bsh,
                rv       = rgb2yuv[RV_IDX] << rsh, gv = rgb2yuv[GV_IDX] << gsh, bv = rgb2yuv[BV_IDX] << bsh;
      const unsigned rnd = (256u<<((S)-1)) + (1<<(S-7));
      int i;
  
      for (i = 0; i < width; i++) {
          int px = input_pixel(i) >> shp;
          int b  = (px & maskb)   >> shb;
          int g  = (px & maskg)   >> shg;
          int r  = (px & maskr)   >> shr;
  
          dstU[i] = (ru * r + gu * g + bu * b + rnd) >> ((S)-6);
          dstV[i] = (rv * r + gv * g + bv * b + rnd) >> ((S)-6);
      }
  }
  
  static av_always_inline void rgb16_32ToUV_half_c_template(int16_t *dstU,
                                                            int16_t *dstV,
                                                            const uint8_t *src,
                                                            int width,
                                                            enum AVPixelFormat origin,
                                                            int shr, int shg,
                                                            int shb, int shp,
                                                            int maskr, int maskg,
                                                            int maskb, int rsh,
                                                            int gsh, int bsh, int S,
                                                            int32_t *rgb2yuv)
  {
      const int ru       = rgb2yuv[RU_IDX] << rsh, gu = rgb2yuv[GU_IDX] << gsh, bu = rgb2yuv[BU_IDX] << bsh,
                rv       = rgb2yuv[RV_IDX] << rsh, gv = rgb2yuv[GV_IDX] << gsh, bv = rgb2yuv[BV_IDX] << bsh,
                maskgx   = ~(maskr | maskb);
      const unsigned rnd = (256U<<(S)) + (1<<(S-6));
      int i;
  
      maskr |= maskr << 1;
      maskb |= maskb << 1;
      maskg |= maskg << 1;
      for (i = 0; i < width; i++) {
          int px0 = input_pixel(2 * i + 0) >> shp;
          int px1 = input_pixel(2 * i + 1) >> shp;
          int b, r, g = (px0 & maskgx) + (px1 & maskgx);
          int rb = px0 + px1 - g;
  
          b = (rb & maskb) >> shb;
          if (shp ||
              origin == AV_PIX_FMT_BGR565LE || origin == AV_PIX_FMT_BGR565BE ||
              origin == AV_PIX_FMT_RGB565LE || origin == AV_PIX_FMT_RGB565BE) {
              g >>= shg;
          } else {
              g = (g & maskg) >> shg;
          }
          r = (rb & maskr) >> shr;
  
          dstU[i] = (ru * r + gu * g + bu * b + (unsigned)rnd) >> ((S)-6+1);
          dstV[i] = (rv * r + gv * g + bv * b + (unsigned)rnd) >> ((S)-6+1);
      }
  }
  
  #undef input_pixel
  
  #define rgb16_32_wrapper(fmt, name, shr, shg, shb, shp, maskr,          \
                           maskg, maskb, rsh, gsh, bsh, S)                \
  static void name ## ToY_c(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,            \
                            int width, uint32_t *tab)                     \
  {                                                                       \
      rgb16_32ToY_c_template((int16_t*)dst, src, width, fmt, shr, shg, shb, shp,    \
                             maskr, maskg, maskb, rsh, gsh, bsh, S, tab); \
  }                                                                       \
                                                                          \
  static void name ## ToUV_c(uint8_t *dstU, uint8_t *dstV,                \
                             const uint8_t *unused0, const uint8_t *src, const uint8_t *dummy,    \
                             int width, uint32_t *tab)                    \
  {                                                                       \
      rgb16_32ToUV_c_template((int16_t*)dstU, (int16_t*)dstV, src, width, fmt,                \
                              shr, shg, shb, shp,                         \
                              maskr, maskg, maskb, rsh, gsh, bsh, S, tab);\
  }                                                                       \
                                                                          \
  static void name ## ToUV_half_c(uint8_t *dstU, uint8_t *dstV,           \
                                  const uint8_t *unused0, const uint8_t *src,                     \
                                  const uint8_t *dummy,                   \
                                  int width, uint32_t *tab)               \
  {                                                                       \
      rgb16_32ToUV_half_c_template((int16_t*)dstU, (int16_t*)dstV, src, width, fmt,           \
                                   shr, shg, shb, shp,                    \
                                   maskr, maskg, maskb,                   \
                                   rsh, gsh, bsh, S, tab);                \
  }
  
  rgb16_32_wrapper(AV_PIX_FMT_BGR32,    bgr32,  16, 0,  0, 0, 0xFF0000, 0xFF00,   0x00FF,  8, 0,  8, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_BGR32_1,  bgr321, 16, 0,  0, 8, 0xFF0000, 0xFF00,   0x00FF,  8, 0,  8, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_RGB32,    rgb32,   0, 0, 16, 0,   0x00FF, 0xFF00, 0xFF0000,  8, 0,  8, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_RGB32_1,  rgb321,  0, 0, 16, 8,   0x00FF, 0xFF00, 0xFF0000,  8, 0,  8, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_BGR565LE, bgr16le, 0, 0,  0, 0,   0x001F, 0x07E0,   0xF800, 11, 5,  0, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_BGR555LE, bgr15le, 0, 0,  0, 0,   0x001F, 0x03E0,   0x7C00, 10, 5,  0, RGB2YUV_SHIFT + 7)
  rgb16_32_wrapper(AV_PIX_FMT_BGR444LE, bgr12le, 0, 0,  0, 0,   0x000F, 0x00F0,   0x0F00,  8, 4,  0, RGB2YUV_SHIFT + 4)
  rgb16_32_wrapper(AV_PIX_FMT_RGB565LE, rgb16le, 0, 0,  0, 0,   0xF800, 0x07E0,   0x001F,  0, 5, 11, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_RGB555LE, rgb15le, 0, 0,  0, 0,   0x7C00, 0x03E0,   0x001F,  0, 5, 10, RGB2YUV_SHIFT + 7)
  rgb16_32_wrapper(AV_PIX_FMT_RGB444LE, rgb12le, 0, 0,  0, 0,   0x0F00, 0x00F0,   0x000F,  0, 4,  8, RGB2YUV_SHIFT + 4)
  rgb16_32_wrapper(AV_PIX_FMT_BGR565BE, bgr16be, 0, 0,  0, 0,   0x001F, 0x07E0,   0xF800, 11, 5,  0, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_BGR555BE, bgr15be, 0, 0,  0, 0,   0x001F, 0x03E0,   0x7C00, 10, 5,  0, RGB2YUV_SHIFT + 7)
  rgb16_32_wrapper(AV_PIX_FMT_BGR444BE, bgr12be, 0, 0,  0, 0,   0x000F, 0x00F0,   0x0F00,  8, 4,  0, RGB2YUV_SHIFT + 4)
  rgb16_32_wrapper(AV_PIX_FMT_RGB565BE, rgb16be, 0, 0,  0, 0,   0xF800, 0x07E0,   0x001F,  0, 5, 11, RGB2YUV_SHIFT + 8)
  rgb16_32_wrapper(AV_PIX_FMT_RGB555BE, rgb15be, 0, 0,  0, 0,   0x7C00, 0x03E0,   0x001F,  0, 5, 10, RGB2YUV_SHIFT + 7)
  rgb16_32_wrapper(AV_PIX_FMT_RGB444BE, rgb12be, 0, 0,  0, 0,   0x0F00, 0x00F0,   0x000F,  0, 4,  8, RGB2YUV_SHIFT + 4)
  
  static void gbr24pToUV_half_c(uint8_t *_dstU, uint8_t *_dstV,
                           const uint8_t *gsrc, const uint8_t *bsrc, const uint8_t *rsrc,
                           int width, uint32_t *rgb2yuv)
  {
      uint16_t *dstU = (uint16_t *)_dstU;
      uint16_t *dstV = (uint16_t *)_dstV;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
  
      int i;
      for (i = 0; i < width; i++) {
          unsigned int g   = gsrc[2*i] + gsrc[2*i+1];
          unsigned int b   = bsrc[2*i] + bsrc[2*i+1];
          unsigned int r   = rsrc[2*i] + rsrc[2*i+1];
  
          dstU[i] = (ru*r + gu*g + bu*b + (0x4001<<(RGB2YUV_SHIFT-6))) >> (RGB2YUV_SHIFT-6+1);
          dstV[i] = (rv*r + gv*g + bv*b + (0x4001<<(RGB2YUV_SHIFT-6))) >> (RGB2YUV_SHIFT-6+1);
      }
  }
  
  static void rgba64ToA_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused1,
                          const uint8_t *unused2, int width, uint32_t *unused)
  {
      int16_t *dst = (int16_t *)_dst;
      const uint16_t *src = (const uint16_t *)_src;
      int i;
      for (i = 0; i < width; i++)
          dst[i] = src[4 * i + 3];
  }
  
  static void abgrToA_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width, uint32_t *unused)
  {
      int16_t *dst = (int16_t *)_dst;
      int i;
      for (i=0; i<width; i++) {
          dst[i]= src[4*i]<<6;
      }
  }
  
  static void rgbaToA_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width, uint32_t *unused)
  {
      int16_t *dst = (int16_t *)_dst;
      int i;
      for (i=0; i<width; i++) {
          dst[i]= src[4*i+3]<<6;
      }
  }
  
  static void palToA_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width, uint32_t *pal)
  {
      int16_t *dst = (int16_t *)_dst;
      int i;
      for (i=0; i<width; i++) {
          int d= src[i];
  
          dst[i]= (pal[d] >> 24)<<6;
      }
  }
  
  static void palToY_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width, uint32_t *pal)
  {
      int16_t *dst = (int16_t *)_dst;
      int i;
      for (i = 0; i < width; i++) {
          int d = src[i];
  
          dst[i] = (pal[d] & 0xFF)<<6;
      }
  }
  
  static void palToUV_c(uint8_t *_dstU, uint8_t *_dstV,
                             const uint8_t *unused0, const uint8_t *src1, const uint8_t *src2,
                        int width, uint32_t *pal)
  {
      uint16_t *dstU = (uint16_t *)_dstU;
      int16_t *dstV = (int16_t *)_dstV;
      int i;
      av_assert1(src1 == src2);
      for (i = 0; i < width; i++) {
          int p = pal[src1[i]];
  
          dstU[i] = (uint8_t)(p>> 8)<<6;
          dstV[i] = (uint8_t)(p>>16)<<6;
      }
  }
  
  static void monowhite2Y_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width, uint32_t *unused)
  {
      int16_t *dst = (int16_t *)_dst;
      int i, j;
      width = (width + 7) >> 3;
      for (i = 0; i < width; i++) {
          int d = ~src[i];
          for (j = 0; j < 8; j++)
              dst[8*i+j]= ((d>>(7-j))&1) * 16383;
      }
      if(width&7){
          int d= ~src[i];
          for (j = 0; j < (width&7); j++)
              dst[8*i+j]= ((d>>(7-j))&1) * 16383;
      }
  }
  
  static void monoblack2Y_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width, uint32_t *unused)
  {
      int16_t *dst = (int16_t *)_dst;
      int i, j;
      width = (width + 7) >> 3;
      for (i = 0; i < width; i++) {
          int d = src[i];
          for (j = 0; j < 8; j++)
              dst[8*i+j]= ((d>>(7-j))&1) * 16383;
      }
      if(width&7){
          int d = src[i];
          for (j = 0; j < (width&7); j++)
              dst[8*i+j] = ((d>>(7-j))&1) * 16383;
      }
  }
  
  static void yuy2ToY_c(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width,
                        uint32_t *unused)
  {
      int i;
      for (i = 0; i < width; i++)
          dst[i] = src[2 * i];
  }
  
  static void yuy2ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, const uint8_t *src1,
                         const uint8_t *src2, int width, uint32_t *unused)
  {
      int i;
      for (i = 0; i < width; i++) {
          dstU[i] = src1[4 * i + 1];
          dstV[i] = src1[4 * i + 3];
      }
      av_assert1(src1 == src2);
  }
  
  static void bswap16Y_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused1, const uint8_t *unused2,  int width,
                         uint32_t *unused)
  {
      int i;
      const uint16_t *src = (const uint16_t *)_src;
      uint16_t *dst       = (uint16_t *)_dst;
      for (i = 0; i < width; i++)
          dst[i] = av_bswap16(src[i]);
  }
  
  static void bswap16UV_c(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *unused0, const uint8_t *_src1,
                          const uint8_t *_src2, int width, uint32_t *unused)
  {
      int i;
      const uint16_t *src1 = (const uint16_t *)_src1,
      *src2                = (const uint16_t *)_src2;
      uint16_t *dstU       = (uint16_t *)_dstU, *dstV = (uint16_t *)_dstV;
      for (i = 0; i < width; i++) {
          dstU[i] = av_bswap16(src1[i]);
          dstV[i] = av_bswap16(src2[i]);
      }
  }
  
  /* This is almost identical to the previous, end exists only because
   * yuy2ToY/UV)(dst, src + 1, ...) would have 100% unaligned accesses. */
  static void uyvyToY_c(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width,
                        uint32_t *unused)
  {
      int i;
      for (i = 0; i < width; i++)
          dst[i] = src[2 * i + 1];
  }
  
  static void uyvyToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, const uint8_t *src1,
                         const uint8_t *src2, int width, uint32_t *unused)
  {
      int i;
      for (i = 0; i < width; i++) {
          dstU[i] = src1[4 * i + 0];
          dstV[i] = src1[4 * i + 2];
      }
      av_assert1(src1 == src2);
  }
  
  static av_always_inline void nvXXtoUV_c(uint8_t *dst1, uint8_t *dst2,
                                          const uint8_t *src, int width)
  {
      int i;
      for (i = 0; i < width; i++) {
          dst1[i] = src[2 * i + 0];
          dst2[i] = src[2 * i + 1];
      }
  }
  
  static void nv12ToUV_c(uint8_t *dstU, uint8_t *dstV,
                         const uint8_t *unused0, const uint8_t *src1, const uint8_t *src2,
                         int width, uint32_t *unused)
  {
      nvXXtoUV_c(dstU, dstV, src1, width);
  }
  
  static void nv21ToUV_c(uint8_t *dstU, uint8_t *dstV,
                         const uint8_t *unused0, const uint8_t *src1, const uint8_t *src2,
                         int width, uint32_t *unused)
  {
      nvXXtoUV_c(dstV, dstU, src1, width);
  }
  
  #define input_pixel(pos) (isBE(origin) ? AV_RB16(pos) : AV_RL16(pos))
  
  static void bgr24ToY_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,
                         int width, uint32_t *rgb2yuv)
  {
      int16_t *dst = (int16_t *)_dst;
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      int i;
      for (i = 0; i < width; i++) {
          int b = src[i * 3 + 0];
          int g = src[i * 3 + 1];
          int r = src[i * 3 + 2];
  
          dst[i] = ((ry*r + gy*g + by*b + (32<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6));
      }
  }
  
  static void bgr24ToUV_c(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *unused0, const uint8_t *src1,
                          const uint8_t *src2, int width, uint32_t *rgb2yuv)
  {
      int16_t *dstU = (int16_t *)_dstU;
      int16_t *dstV = (int16_t *)_dstV;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      int i;
      for (i = 0; i < width; i++) {
          int b = src1[3 * i + 0];
          int g = src1[3 * i + 1];
          int r = src1[3 * i + 2];
  
          dstU[i] = (ru*r + gu*g + bu*b + (256<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6);
          dstV[i] = (rv*r + gv*g + bv*b + (256<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6);
      }
      av_assert1(src1 == src2);
  }
  
  static void bgr24ToUV_half_c(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *unused0, const uint8_t *src1,
                               const uint8_t *src2, int width, uint32_t *rgb2yuv)
  {
      int16_t *dstU = (int16_t *)_dstU;
      int16_t *dstV = (int16_t *)_dstV;
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      for (i = 0; i < width; i++) {
          int b = src1[6 * i + 0] + src1[6 * i + 3];
          int g = src1[6 * i + 1] + src1[6 * i + 4];
          int r = src1[6 * i + 2] + src1[6 * i + 5];
  
          dstU[i] = (ru*r + gu*g + bu*b + (256<<RGB2YUV_SHIFT) + (1<<(RGB2YUV_SHIFT-6)))>>(RGB2YUV_SHIFT-5);
          dstV[i] = (rv*r + gv*g + bv*b + (256<<RGB2YUV_SHIFT) + (1<<(RGB2YUV_SHIFT-6)))>>(RGB2YUV_SHIFT-5);
      }
      av_assert1(src1 == src2);
  }
  
  static void rgb24ToY_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width,
                         uint32_t *rgb2yuv)
  {
      int16_t *dst = (int16_t *)_dst;
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      int i;
      for (i = 0; i < width; i++) {
          int r = src[i * 3 + 0];
          int g = src[i * 3 + 1];
          int b = src[i * 3 + 2];
  
          dst[i] = ((ry*r + gy*g + by*b + (32<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6));
      }
  }
  
  static void rgb24ToUV_c(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *unused0, const uint8_t *src1,
                          const uint8_t *src2, int width, uint32_t *rgb2yuv)
  {
      int16_t *dstU = (int16_t *)_dstU;
      int16_t *dstV = (int16_t *)_dstV;
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1 == src2);
      for (i = 0; i < width; i++) {
          int r = src1[3 * i + 0];
          int g = src1[3 * i + 1];
          int b = src1[3 * i + 2];
  
          dstU[i] = (ru*r + gu*g + bu*b + (256<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6);
          dstV[i] = (rv*r + gv*g + bv*b + (256<<(RGB2YUV_SHIFT-1)) + (1<<(RGB2YUV_SHIFT-7)))>>(RGB2YUV_SHIFT-6);
      }
  }
  
  static void rgb24ToUV_half_c(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *unused0, const uint8_t *src1,
                               const uint8_t *src2, int width, uint32_t *rgb2yuv)
  {
      int16_t *dstU = (int16_t *)_dstU;
      int16_t *dstV = (int16_t *)_dstV;
      int i;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      av_assert1(src1 == src2);
      for (i = 0; i < width; i++) {
          int r = src1[6 * i + 0] + src1[6 * i + 3];
          int g = src1[6 * i + 1] + src1[6 * i + 4];
          int b = src1[6 * i + 2] + src1[6 * i + 5];
  
          dstU[i] = (ru*r + gu*g + bu*b + (256<<RGB2YUV_SHIFT) + (1<<(RGB2YUV_SHIFT-6)))>>(RGB2YUV_SHIFT-5);
          dstV[i] = (rv*r + gv*g + bv*b + (256<<RGB2YUV_SHIFT) + (1<<(RGB2YUV_SHIFT-6)))>>(RGB2YUV_SHIFT-5);
      }
  }
  
  static void planar_rgb_to_y(uint8_t *_dst, const uint8_t *src[4], int width, int32_t *rgb2yuv)
  {
      uint16_t *dst = (uint16_t *)_dst;
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      int i;
      for (i = 0; i < width; i++) {
          int g = src[0][i];
          int b = src[1][i];
          int r = src[2][i];
  
          dst[i] = (ry*r + gy*g + by*b + (0x801<<(RGB2YUV_SHIFT-7))) >> (RGB2YUV_SHIFT-6);
      }
  }
  
  static void planar_rgb_to_a(uint8_t *_dst, const uint8_t *src[4], int width, int32_t *unused)
  {
      uint16_t *dst = (uint16_t *)_dst;
      int i;
      for (i = 0; i < width; i++)
          dst[i] = src[3][i] << 6;
  }
  
  static void planar_rgb_to_uv(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *src[4], int width, int32_t *rgb2yuv)
  {
      uint16_t *dstU = (uint16_t *)_dstU;
      uint16_t *dstV = (uint16_t *)_dstV;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      int i;
      for (i = 0; i < width; i++) {
          int g = src[0][i];
          int b = src[1][i];
          int r = src[2][i];
  
          dstU[i] = (ru*r + gu*g + bu*b + (0x4001<<(RGB2YUV_SHIFT-7))) >> (RGB2YUV_SHIFT-6);
          dstV[i] = (rv*r + gv*g + bv*b + (0x4001<<(RGB2YUV_SHIFT-7))) >> (RGB2YUV_SHIFT-6);
      }
  }
  
  #define rdpx(src) \
      is_be ? AV_RB16(src) : AV_RL16(src)
  static av_always_inline void planar_rgb16_to_y(uint8_t *_dst, const uint8_t *_src[4],
                                                 int width, int bpc, int is_be, int32_t *rgb2yuv)
  {
      int i;
      const uint16_t **src = (const uint16_t **)_src;
      uint16_t *dst        = (uint16_t *)_dst;
      int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
      for (i = 0; i < width; i++) {
          int g = rdpx(src[0] + i);
          int b = rdpx(src[1] + i);
          int r = rdpx(src[2] + i);
  
          dst[i] = ((ry*r + gy*g + by*b + (33 << (RGB2YUV_SHIFT + bpc - 9))) >> (RGB2YUV_SHIFT + bpc - 14));
      }
  }
  
  static av_always_inline void planar_rgb16_to_uv(uint8_t *_dstU, uint8_t *_dstV,
                                                  const uint8_t *_src[4], int width,
                                                  int bpc, int is_be, int32_t *rgb2yuv)
  {
      int i;
      const uint16_t **src = (const uint16_t **)_src;
      uint16_t *dstU       = (uint16_t *)_dstU;
      uint16_t *dstV       = (uint16_t *)_dstV;
      int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
      int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
      for (i = 0; i < width; i++) {
          int g = rdpx(src[0] + i);
          int b = rdpx(src[1] + i);
          int r = rdpx(src[2] + i);
  
          dstU[i] = (ru*r + gu*g + bu*b + (257 << (RGB2YUV_SHIFT + bpc - 9))) >> (RGB2YUV_SHIFT + bpc - 14);
          dstV[i] = (rv*r + gv*g + bv*b + (257 << (RGB2YUV_SHIFT + bpc - 9))) >> (RGB2YUV_SHIFT + bpc - 14);
      }
  }
  #undef rdpx
  
  #define rgb9plus_planar_funcs_endian(nbits, endian_name, endian)                                    \
  static void planar_rgb##nbits##endian_name##_to_y(uint8_t *dst, const uint8_t *src[4],              \
                                                    int w, int32_t *rgb2yuv)                          \
  {                                                                                                   \
      planar_rgb16_to_y(dst, src, w, nbits, endian, rgb2yuv);                                         \
  }                                                                                                   \
  static void planar_rgb##nbits##endian_name##_to_uv(uint8_t *dstU, uint8_t *dstV,                    \
                                                     const uint8_t *src[4], int w, int32_t *rgb2yuv)  \
  {                                                                                                   \
      planar_rgb16_to_uv(dstU, dstV, src, w, nbits, endian, rgb2yuv);                                 \
  }                                                                                                   \
  
  #define rgb9plus_planar_funcs(nbits)            \
      rgb9plus_planar_funcs_endian(nbits, le, 0)  \
      rgb9plus_planar_funcs_endian(nbits, be, 1)
  
  rgb9plus_planar_funcs(9)
  rgb9plus_planar_funcs(10)
  rgb9plus_planar_funcs(12)
  rgb9plus_planar_funcs(14)
  rgb9plus_planar_funcs(16)
  
  av_cold void ff_sws_init_input_funcs(SwsContext *c)
  {
      enum AVPixelFormat srcFormat = c->srcFormat;
  
      c->chrToYV12 = NULL;
      switch (srcFormat) {
      case AV_PIX_FMT_YUYV422:
          c->chrToYV12 = yuy2ToUV_c;
          break;
      case AV_PIX_FMT_UYVY422:
          c->chrToYV12 = uyvyToUV_c;
          break;
      case AV_PIX_FMT_NV12:
          c->chrToYV12 = nv12ToUV_c;
          break;
      case AV_PIX_FMT_NV21:
          c->chrToYV12 = nv21ToUV_c;
          break;
      case AV_PIX_FMT_RGB8:
      case AV_PIX_FMT_BGR8:
      case AV_PIX_FMT_PAL8:
      case AV_PIX_FMT_BGR4_BYTE:
      case AV_PIX_FMT_RGB4_BYTE:
          c->chrToYV12 = palToUV_c;
          break;
      case AV_PIX_FMT_GBRP9LE:
          c->readChrPlanar = planar_rgb9le_to_uv;
          break;
      case AV_PIX_FMT_GBRP10LE:
          c->readChrPlanar = planar_rgb10le_to_uv;
          break;
      case AV_PIX_FMT_GBRP12LE:
          c->readChrPlanar = planar_rgb12le_to_uv;
          break;
      case AV_PIX_FMT_GBRP14LE:
          c->readChrPlanar = planar_rgb14le_to_uv;
          break;
      case AV_PIX_FMT_GBRAP16LE:
      case AV_PIX_FMT_GBRP16LE:
          c->readChrPlanar = planar_rgb16le_to_uv;
          break;
      case AV_PIX_FMT_GBRP9BE:
          c->readChrPlanar = planar_rgb9be_to_uv;
          break;
      case AV_PIX_FMT_GBRP10BE:
          c->readChrPlanar = planar_rgb10be_to_uv;
          break;
      case AV_PIX_FMT_GBRP12BE:
          c->readChrPlanar = planar_rgb12be_to_uv;
          break;
      case AV_PIX_FMT_GBRP14BE:
          c->readChrPlanar = planar_rgb14be_to_uv;
          break;
      case AV_PIX_FMT_GBRAP16BE:
      case AV_PIX_FMT_GBRP16BE:
          c->readChrPlanar = planar_rgb16be_to_uv;
          break;
      case AV_PIX_FMT_GBRAP:
      case AV_PIX_FMT_GBRP:
          c->readChrPlanar = planar_rgb_to_uv;
          break;
  #if HAVE_BIGENDIAN
      case AV_PIX_FMT_YUV444P9LE:
      case AV_PIX_FMT_YUV422P9LE:
      case AV_PIX_FMT_YUV420P9LE:
      case AV_PIX_FMT_YUV422P10LE:
      case AV_PIX_FMT_YUV444P10LE:
      case AV_PIX_FMT_YUV420P10LE:
      case AV_PIX_FMT_YUV422P12LE:
      case AV_PIX_FMT_YUV444P12LE:
      case AV_PIX_FMT_YUV420P12LE:
      case AV_PIX_FMT_YUV422P14LE:
      case AV_PIX_FMT_YUV444P14LE:
      case AV_PIX_FMT_YUV420P14LE:
      case AV_PIX_FMT_YUV420P16LE:
      case AV_PIX_FMT_YUV422P16LE:
      case AV_PIX_FMT_YUV444P16LE:
  
      case AV_PIX_FMT_YUVA444P9LE:
      case AV_PIX_FMT_YUVA422P9LE:
      case AV_PIX_FMT_YUVA420P9LE:
      case AV_PIX_FMT_YUVA444P10LE:
      case AV_PIX_FMT_YUVA422P10LE:
      case AV_PIX_FMT_YUVA420P10LE:
      case AV_PIX_FMT_YUVA420P16LE:
      case AV_PIX_FMT_YUVA422P16LE:
      case AV_PIX_FMT_YUVA444P16LE:
          c->chrToYV12 = bswap16UV_c;
          break;
  #else
      case AV_PIX_FMT_YUV444P9BE:
      case AV_PIX_FMT_YUV422P9BE:
      case AV_PIX_FMT_YUV420P9BE:
      case AV_PIX_FMT_YUV444P10BE:
      case AV_PIX_FMT_YUV422P10BE:
      case AV_PIX_FMT_YUV420P10BE:
      case AV_PIX_FMT_YUV444P12BE:
      case AV_PIX_FMT_YUV422P12BE:
      case AV_PIX_FMT_YUV420P12BE:
      case AV_PIX_FMT_YUV444P14BE:
      case AV_PIX_FMT_YUV422P14BE:
      case AV_PIX_FMT_YUV420P14BE:
      case AV_PIX_FMT_YUV420P16BE:
      case AV_PIX_FMT_YUV422P16BE:
      case AV_PIX_FMT_YUV444P16BE:
  
      case AV_PIX_FMT_YUVA444P9BE:
      case AV_PIX_FMT_YUVA422P9BE:
      case AV_PIX_FMT_YUVA420P9BE:
      case AV_PIX_FMT_YUVA444P10BE:
      case AV_PIX_FMT_YUVA422P10BE:
      case AV_PIX_FMT_YUVA420P10BE:
      case AV_PIX_FMT_YUVA420P16BE:
      case AV_PIX_FMT_YUVA422P16BE:
      case AV_PIX_FMT_YUVA444P16BE:
          c->chrToYV12 = bswap16UV_c;
          break;
  #endif
      }
      if (c->chrSrcHSubSample) {
          switch (srcFormat) {
          case AV_PIX_FMT_RGBA64BE:
              c->chrToYV12 = rgb64BEToUV_half_c;
              break;
          case AV_PIX_FMT_RGBA64LE:
              c->chrToYV12 = rgb64LEToUV_half_c;
              break;
          case AV_PIX_FMT_RGB48BE:
              c->chrToYV12 = rgb48BEToUV_half_c;
              break;
          case AV_PIX_FMT_RGB48LE:
              c->chrToYV12 = rgb48LEToUV_half_c;
              break;
          case AV_PIX_FMT_BGR48BE:
              c->chrToYV12 = bgr48BEToUV_half_c;
              break;
          case AV_PIX_FMT_BGR48LE:
              c->chrToYV12 = bgr48LEToUV_half_c;
              break;
          case AV_PIX_FMT_RGB32:
              c->chrToYV12 = bgr32ToUV_half_c;
              break;
          case AV_PIX_FMT_RGB32_1:
              c->chrToYV12 = bgr321ToUV_half_c;
              break;
          case AV_PIX_FMT_BGR24:
              c->chrToYV12 = bgr24ToUV_half_c;
              break;
          case AV_PIX_FMT_BGR565LE:
              c->chrToYV12 = bgr16leToUV_half_c;
              break;
          case AV_PIX_FMT_BGR565BE:
              c->chrToYV12 = bgr16beToUV_half_c;
              break;
          case AV_PIX_FMT_BGR555LE:
              c->chrToYV12 = bgr15leToUV_half_c;
              break;
          case AV_PIX_FMT_BGR555BE:
              c->chrToYV12 = bgr15beToUV_half_c;
              break;
          case AV_PIX_FMT_GBRAP:
          case AV_PIX_FMT_GBRP:
              c->chrToYV12 = gbr24pToUV_half_c;
              break;
          case AV_PIX_FMT_BGR444LE:
              c->chrToYV12 = bgr12leToUV_half_c;
              break;
          case AV_PIX_FMT_BGR444BE:
              c->chrToYV12 = bgr12beToUV_half_c;
              break;
          case AV_PIX_FMT_BGR32:
              c->chrToYV12 = rgb32ToUV_half_c;
              break;
          case AV_PIX_FMT_BGR32_1:
              c->chrToYV12 = rgb321ToUV_half_c;
              break;
          case AV_PIX_FMT_RGB24:
              c->chrToYV12 = rgb24ToUV_half_c;
              break;
          case AV_PIX_FMT_RGB565LE:
              c->chrToYV12 = rgb16leToUV_half_c;
              break;
          case AV_PIX_FMT_RGB565BE:
              c->chrToYV12 = rgb16beToUV_half_c;
              break;
          case AV_PIX_FMT_RGB555LE:
              c->chrToYV12 = rgb15leToUV_half_c;
              break;
          case AV_PIX_FMT_RGB555BE:
              c->chrToYV12 = rgb15beToUV_half_c;
              break;
          case AV_PIX_FMT_RGB444LE:
              c->chrToYV12 = rgb12leToUV_half_c;
              break;
          case AV_PIX_FMT_RGB444BE:
              c->chrToYV12 = rgb12beToUV_half_c;
              break;
          }
      } else {
          switch (srcFormat) {
          case AV_PIX_FMT_RGBA64BE:
              c->chrToYV12 = rgb64BEToUV_c;
              break;
          case AV_PIX_FMT_RGBA64LE:
              c->chrToYV12 = rgb64LEToUV_c;
              break;
          case AV_PIX_FMT_RGB48BE:
              c->chrToYV12 = rgb48BEToUV_c;
              break;
          case AV_PIX_FMT_RGB48LE:
              c->chrToYV12 = rgb48LEToUV_c;
              break;
          case AV_PIX_FMT_BGR48BE:
              c->chrToYV12 = bgr48BEToUV_c;
              break;
          case AV_PIX_FMT_BGR48LE:
              c->chrToYV12 = bgr48LEToUV_c;
              break;
          case AV_PIX_FMT_RGB32:
              c->chrToYV12 = bgr32ToUV_c;
              break;
          case AV_PIX_FMT_RGB32_1:
              c->chrToYV12 = bgr321ToUV_c;
              break;
          case AV_PIX_FMT_BGR24:
              c->chrToYV12 = bgr24ToUV_c;
              break;
          case AV_PIX_FMT_BGR565LE:
              c->chrToYV12 = bgr16leToUV_c;
              break;
          case AV_PIX_FMT_BGR565BE:
              c->chrToYV12 = bgr16beToUV_c;
              break;
          case AV_PIX_FMT_BGR555LE:
              c->chrToYV12 = bgr15leToUV_c;
              break;
          case AV_PIX_FMT_BGR555BE:
              c->chrToYV12 = bgr15beToUV_c;
              break;
          case AV_PIX_FMT_BGR444LE:
              c->chrToYV12 = bgr12leToUV_c;
              break;
          case AV_PIX_FMT_BGR444BE:
              c->chrToYV12 = bgr12beToUV_c;
              break;
          case AV_PIX_FMT_BGR32:
              c->chrToYV12 = rgb32ToUV_c;
              break;
          case AV_PIX_FMT_BGR32_1:
              c->chrToYV12 = rgb321ToUV_c;
              break;
          case AV_PIX_FMT_RGB24:
              c->chrToYV12 = rgb24ToUV_c;
              break;
          case AV_PIX_FMT_RGB565LE:
              c->chrToYV12 = rgb16leToUV_c;
              break;
          case AV_PIX_FMT_RGB565BE:
              c->chrToYV12 = rgb16beToUV_c;
              break;
          case AV_PIX_FMT_RGB555LE:
              c->chrToYV12 = rgb15leToUV_c;
              break;
          case AV_PIX_FMT_RGB555BE:
              c->chrToYV12 = rgb15beToUV_c;
              break;
          case AV_PIX_FMT_RGB444LE:
              c->chrToYV12 = rgb12leToUV_c;
              break;
          case AV_PIX_FMT_RGB444BE:
              c->chrToYV12 = rgb12beToUV_c;
              break;
          }
      }
  
      c->lumToYV12 = NULL;
      c->alpToYV12 = NULL;
      switch (srcFormat) {
      case AV_PIX_FMT_GBRP9LE:
          c->readLumPlanar = planar_rgb9le_to_y;
          break;
      case AV_PIX_FMT_GBRP10LE:
          c->readLumPlanar = planar_rgb10le_to_y;
          break;
      case AV_PIX_FMT_GBRP12LE:
          c->readLumPlanar = planar_rgb12le_to_y;
          break;
      case AV_PIX_FMT_GBRP14LE:
          c->readLumPlanar = planar_rgb14le_to_y;
          break;
      case AV_PIX_FMT_GBRAP16LE:
      case AV_PIX_FMT_GBRP16LE:
          c->readLumPlanar = planar_rgb16le_to_y;
          break;
      case AV_PIX_FMT_GBRP9BE:
          c->readLumPlanar = planar_rgb9be_to_y;
          break;
      case AV_PIX_FMT_GBRP10BE:
          c->readLumPlanar = planar_rgb10be_to_y;
          break;
      case AV_PIX_FMT_GBRP12BE:
          c->readLumPlanar = planar_rgb12be_to_y;
          break;
      case AV_PIX_FMT_GBRP14BE:
          c->readLumPlanar = planar_rgb14be_to_y;
          break;
      case AV_PIX_FMT_GBRAP16BE:
      case AV_PIX_FMT_GBRP16BE:
          c->readLumPlanar = planar_rgb16be_to_y;
          break;
      case AV_PIX_FMT_GBRAP:
          c->readAlpPlanar = planar_rgb_to_a;
      case AV_PIX_FMT_GBRP:
          c->readLumPlanar = planar_rgb_to_y;
          break;
  #if HAVE_BIGENDIAN
      case AV_PIX_FMT_YUV444P9LE:
      case AV_PIX_FMT_YUV422P9LE:
      case AV_PIX_FMT_YUV420P9LE:
      case AV_PIX_FMT_YUV444P10LE:
      case AV_PIX_FMT_YUV422P10LE:
      case AV_PIX_FMT_YUV420P10LE:
      case AV_PIX_FMT_YUV444P12LE:
      case AV_PIX_FMT_YUV422P12LE:
      case AV_PIX_FMT_YUV420P12LE:
      case AV_PIX_FMT_YUV444P14LE:
      case AV_PIX_FMT_YUV422P14LE:
      case AV_PIX_FMT_YUV420P14LE:
      case AV_PIX_FMT_YUV420P16LE:
      case AV_PIX_FMT_YUV422P16LE:
      case AV_PIX_FMT_YUV444P16LE:
  
      case AV_PIX_FMT_GRAY16LE:
          c->lumToYV12 = bswap16Y_c;
          break;
      case AV_PIX_FMT_YUVA444P9LE:
      case AV_PIX_FMT_YUVA422P9LE:
      case AV_PIX_FMT_YUVA420P9LE:
      case AV_PIX_FMT_YUVA444P10LE:
      case AV_PIX_FMT_YUVA422P10LE:
      case AV_PIX_FMT_YUVA420P10LE:
      case AV_PIX_FMT_YUVA420P16LE:
      case AV_PIX_FMT_YUVA422P16LE:
      case AV_PIX_FMT_YUVA444P16LE:
          c->lumToYV12 = bswap16Y_c;
          c->alpToYV12 = bswap16Y_c;
          break;
  #else
      case AV_PIX_FMT_YUV444P9BE:
      case AV_PIX_FMT_YUV422P9BE:
      case AV_PIX_FMT_YUV420P9BE:
      case AV_PIX_FMT_YUV444P10BE:
      case AV_PIX_FMT_YUV422P10BE:
      case AV_PIX_FMT_YUV420P10BE:
      case AV_PIX_FMT_YUV444P12BE:
      case AV_PIX_FMT_YUV422P12BE:
      case AV_PIX_FMT_YUV420P12BE:
      case AV_PIX_FMT_YUV444P14BE:
      case AV_PIX_FMT_YUV422P14BE:
      case AV_PIX_FMT_YUV420P14BE:
      case AV_PIX_FMT_YUV420P16BE:
      case AV_PIX_FMT_YUV422P16BE:
      case AV_PIX_FMT_YUV444P16BE:
  
      case AV_PIX_FMT_GRAY16BE:
          c->lumToYV12 = bswap16Y_c;
          break;
      case AV_PIX_FMT_YUVA444P9BE:
      case AV_PIX_FMT_YUVA422P9BE:
      case AV_PIX_FMT_YUVA420P9BE:
      case AV_PIX_FMT_YUVA444P10BE:
      case AV_PIX_FMT_YUVA422P10BE:
      case AV_PIX_FMT_YUVA420P10BE:
      case AV_PIX_FMT_YUVA420P16BE:
      case AV_PIX_FMT_YUVA422P16BE:
      case AV_PIX_FMT_YUVA444P16BE:
          c->lumToYV12 = bswap16Y_c;
          c->alpToYV12 = bswap16Y_c;
          break;
  #endif
      case AV_PIX_FMT_YUYV422:
      case AV_PIX_FMT_Y400A:
          c->lumToYV12 = yuy2ToY_c;
          break;
      case AV_PIX_FMT_UYVY422:
          c->lumToYV12 = uyvyToY_c;
          break;
      case AV_PIX_FMT_BGR24:
          c->lumToYV12 = bgr24ToY_c;
          break;
      case AV_PIX_FMT_BGR565LE:
          c->lumToYV12 = bgr16leToY_c;
          break;
      case AV_PIX_FMT_BGR565BE:
          c->lumToYV12 = bgr16beToY_c;
          break;
      case AV_PIX_FMT_BGR555LE:
          c->lumToYV12 = bgr15leToY_c;
          break;
      case AV_PIX_FMT_BGR555BE:
          c->lumToYV12 = bgr15beToY_c;
          break;
      case AV_PIX_FMT_BGR444LE:
          c->lumToYV12 = bgr12leToY_c;
          break;
      case AV_PIX_FMT_BGR444BE:
          c->lumToYV12 = bgr12beToY_c;
          break;
      case AV_PIX_FMT_RGB24:
          c->lumToYV12 = rgb24ToY_c;
          break;
      case AV_PIX_FMT_RGB565LE:
          c->lumToYV12 = rgb16leToY_c;
          break;
      case AV_PIX_FMT_RGB565BE:
          c->lumToYV12 = rgb16beToY_c;
          break;
      case AV_PIX_FMT_RGB555LE:
          c->lumToYV12 = rgb15leToY_c;
          break;
      case AV_PIX_FMT_RGB555BE:
          c->lumToYV12 = rgb15beToY_c;
          break;
      case AV_PIX_FMT_RGB444LE:
          c->lumToYV12 = rgb12leToY_c;
          break;
      case AV_PIX_FMT_RGB444BE:
          c->lumToYV12 = rgb12beToY_c;
          break;
      case AV_PIX_FMT_RGB8:
      case AV_PIX_FMT_BGR8:
      case AV_PIX_FMT_PAL8:
      case AV_PIX_FMT_BGR4_BYTE:
      case AV_PIX_FMT_RGB4_BYTE:
          c->lumToYV12 = palToY_c;
          break;
      case AV_PIX_FMT_MONOBLACK:
          c->lumToYV12 = monoblack2Y_c;
          break;
      case AV_PIX_FMT_MONOWHITE:
          c->lumToYV12 = monowhite2Y_c;
          break;
      case AV_PIX_FMT_RGB32:
          c->lumToYV12 = bgr32ToY_c;
          break;
      case AV_PIX_FMT_RGB32_1:
          c->lumToYV12 = bgr321ToY_c;
          break;
      case AV_PIX_FMT_BGR32:
          c->lumToYV12 = rgb32ToY_c;
          break;
      case AV_PIX_FMT_BGR32_1:
          c->lumToYV12 = rgb321ToY_c;
          break;
      case AV_PIX_FMT_RGB48BE:
          c->lumToYV12 = rgb48BEToY_c;
          break;
      case AV_PIX_FMT_RGB48LE:
          c->lumToYV12 = rgb48LEToY_c;
          break;
      case AV_PIX_FMT_BGR48BE:
          c->lumToYV12 = bgr48BEToY_c;
          break;
      case AV_PIX_FMT_BGR48LE:
          c->lumToYV12 = bgr48LEToY_c;
          break;
      case AV_PIX_FMT_RGBA64BE:
          c->lumToYV12 = rgb64BEToY_c;
          break;
      case AV_PIX_FMT_RGBA64LE:
          c->lumToYV12 = rgb64LEToY_c;
          break;
      }
      if (c->alpPixBuf) {
          if (is16BPS(srcFormat) || isNBPS(srcFormat)) {
              if (HAVE_BIGENDIAN == !isBE(srcFormat))
                  c->alpToYV12 = bswap16Y_c;
          }
          switch (srcFormat) {
          case AV_PIX_FMT_RGBA64LE:
          case AV_PIX_FMT_RGBA64BE:  c->alpToYV12 = rgba64ToA_c; break;
          case AV_PIX_FMT_BGRA:
          case AV_PIX_FMT_RGBA:
              c->alpToYV12 = rgbaToA_c;
              break;
          case AV_PIX_FMT_ABGR:
          case AV_PIX_FMT_ARGB:
              c->alpToYV12 = abgrToA_c;
              break;
          case AV_PIX_FMT_Y400A:
              c->alpToYV12 = uyvyToY_c;
              break;
          case AV_PIX_FMT_PAL8 :
              c->alpToYV12 = palToA_c;
              break;
          }
      }
  }
  