text: /*
   * Raw Video Codec
   * Copyright (c) 2001 Fabrice Bellard
   *
   * 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
   */
  
  /**
   * @file
   * Raw Video Codec
   */
  
  #include "avcodec.h"
  #include "raw.h"
  
  const PixelFormatTag ff_raw_pix_fmt_tags[] = {
      { PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */
      { PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') },
      { PIX_FMT_YUV420P, MKTAG('Y', 'V', '1', '2') },
      { PIX_FMT_YUV410P, MKTAG('Y', 'U', 'V', '9') },
      { PIX_FMT_YUV410P, MKTAG('Y', 'V', 'U', '9') },
      { PIX_FMT_YUV411P, MKTAG('Y', '4', '1', 'B') },
      { PIX_FMT_YUV422P, MKTAG('Y', '4', '2', 'B') },
      { PIX_FMT_YUV422P, MKTAG('P', '4', '2', '2') },
      /* yuvjXXX formats are deprecated hacks specific to libav*,
         they are identical to yuvXXX  */
      { PIX_FMT_YUVJ420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */
      { PIX_FMT_YUVJ420P, MKTAG('I', 'Y', 'U', 'V') },
      { PIX_FMT_YUVJ420P, MKTAG('Y', 'V', '1', '2') },
      { PIX_FMT_YUVJ422P, MKTAG('Y', '4', '2', 'B') },
      { PIX_FMT_YUVJ422P, MKTAG('P', '4', '2', '2') },
      { PIX_FMT_GRAY8,    MKTAG('Y', '8', '0', '0') },
      { PIX_FMT_GRAY8,    MKTAG(' ', ' ', 'Y', '8') },
  
      { PIX_FMT_YUYV422, MKTAG('Y', 'U', 'Y', '2') }, /* Packed formats */
      { PIX_FMT_YUYV422, MKTAG('Y', '4', '2', '2') },
      { PIX_FMT_YUYV422, MKTAG('V', '4', '2', '2') },
      { PIX_FMT_YUYV422, MKTAG('V', 'Y', 'U', 'Y') },
      { PIX_FMT_YUYV422, MKTAG('Y', 'U', 'N', 'V') },
      { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'V', 'Y') },
      { PIX_FMT_UYVY422, MKTAG('H', 'D', 'Y', 'C') },
      { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'V') },
      { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'Y') },
      { PIX_FMT_UYVY422, MKTAG('u', 'y', 'v', '1') },
      { PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', '1') },
      { PIX_FMT_UYVY422, MKTAG('A', 'V', 'R', 'n') }, /* Avid AVI Codec 1:1 */
      { PIX_FMT_UYVY422, MKTAG('A', 'V', '1', 'x') }, /* Avid 1:1x */
      { PIX_FMT_UYVY422, MKTAG('A', 'V', 'u', 'p') },
      { PIX_FMT_UYVY422, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
      { PIX_FMT_UYYVYY411, MKTAG('Y', '4', '1', '1') },
      { PIX_FMT_GRAY8,   MKTAG('G', 'R', 'E', 'Y') },
      { PIX_FMT_NV12,    MKTAG('N', 'V', '1', '2') },
      { PIX_FMT_NV21,    MKTAG('N', 'V', '2', '1') },
  
      /* nut */
      { PIX_FMT_RGB555LE, MKTAG('R', 'G', 'B', 15) },
      { PIX_FMT_BGR555LE, MKTAG('B', 'G', 'R', 15) },
      { PIX_FMT_RGB565LE, MKTAG('R', 'G', 'B', 16) },
      { PIX_FMT_BGR565LE, MKTAG('B', 'G', 'R', 16) },
      { PIX_FMT_RGB555BE, MKTAG(15 , 'B', 'G', 'R') },
      { PIX_FMT_BGR555BE, MKTAG(15 , 'R', 'G', 'B') },
      { PIX_FMT_RGB565BE, MKTAG(16 , 'B', 'G', 'R') },
      { PIX_FMT_BGR565BE, MKTAG(16 , 'R', 'G', 'B') },
      { PIX_FMT_RGB444LE, MKTAG('R', 'G', 'B', 12) },
      { PIX_FMT_BGR444LE, MKTAG('B', 'G', 'R', 12) },
      { PIX_FMT_RGB444BE, MKTAG(12 , 'B', 'G', 'R') },
      { PIX_FMT_BGR444BE, MKTAG(12 , 'R', 'G', 'B') },
      { PIX_FMT_RGBA,     MKTAG('R', 'G', 'B', 'A') },
      { PIX_FMT_BGRA,     MKTAG('B', 'G', 'R', 'A') },
      { PIX_FMT_ABGR,     MKTAG('A', 'B', 'G', 'R') },
      { PIX_FMT_ARGB,     MKTAG('A', 'R', 'G', 'B') },
      { PIX_FMT_RGB24,    MKTAG('R', 'G', 'B', 24 ) },
      { PIX_FMT_BGR24,    MKTAG('B', 'G', 'R', 24 ) },
      { PIX_FMT_YUV411P,  MKTAG('4', '1', '1', 'P') },
      { PIX_FMT_YUV422P,  MKTAG('4', '2', '2', 'P') },
      { PIX_FMT_YUVJ422P, MKTAG('4', '2', '2', 'P') },
      { PIX_FMT_YUV440P,  MKTAG('4', '4', '0', 'P') },
      { PIX_FMT_YUVJ440P, MKTAG('4', '4', '0', 'P') },
      { PIX_FMT_YUV444P,  MKTAG('4', '4', '4', 'P') },
      { PIX_FMT_YUVJ444P, MKTAG('4', '4', '4', 'P') },
      { PIX_FMT_MONOWHITE,MKTAG('B', '1', 'W', '0') },
      { PIX_FMT_MONOBLACK,MKTAG('B', '0', 'W', '1') },
      { PIX_FMT_BGR8,     MKTAG('B', 'G', 'R',  8 ) },
      { PIX_FMT_RGB8,     MKTAG('R', 'G', 'B',  8 ) },
      { PIX_FMT_BGR4,     MKTAG('B', 'G', 'R',  4 ) },
      { PIX_FMT_RGB4,     MKTAG('R', 'G', 'B',  4 ) },
      { PIX_FMT_RGB4_BYTE,MKTAG('B', '4', 'B', 'Y') },
      { PIX_FMT_BGR4_BYTE,MKTAG('R', '4', 'B', 'Y') },
      { PIX_FMT_RGB48LE,  MKTAG('R', 'G', 'B', 48 ) },
      { PIX_FMT_RGB48BE,  MKTAG( 48, 'R', 'G', 'B') },
      { PIX_FMT_GRAY16LE,    MKTAG('Y', '1',  0 , 16 ) },
      { PIX_FMT_GRAY16BE,    MKTAG(16 ,  0 , '1', 'Y') },
      { PIX_FMT_YUV420P16LE, MKTAG('Y', '3', 11 , 16 ) },
      { PIX_FMT_YUV420P16BE, MKTAG(16 , 11 , '3', 'Y') },
      { PIX_FMT_YUV422P16LE, MKTAG('Y', '3', 10 , 16 ) },
      { PIX_FMT_YUV422P16BE, MKTAG(16 , 10 , '3', 'Y') },
      { PIX_FMT_YUV444P16LE, MKTAG('Y', '3',  0 , 16 ) },
      { PIX_FMT_YUV444P16BE, MKTAG(16 ,  0 , '3', 'Y') },
      { PIX_FMT_YUVA420P,    MKTAG('Y', '4', 11 ,  8 ) },
      { PIX_FMT_Y400A,       MKTAG('Y', '2',  0 ,  8 ) },
  
      /* quicktime */
      { PIX_FMT_UYVY422, MKTAG('2', 'v', 'u', 'y') },
      { PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', 'y') },
      { PIX_FMT_UYVY422, MKTAG('A', 'V', 'U', 'I') }, /* FIXME merge both fields */
      { PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', '2') },
      { PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', 's') },
      { PIX_FMT_PAL8,    MKTAG('W', 'R', 'A', 'W') },
      { PIX_FMT_RGB555LE,MKTAG('L', '5', '5', '5') },
      { PIX_FMT_RGB565LE,MKTAG('L', '5', '6', '5') },
      { PIX_FMT_RGB565BE,MKTAG('B', '5', '6', '5') },
      { PIX_FMT_BGR24,   MKTAG('2', '4', 'B', 'G') },
      { PIX_FMT_BGRA,    MKTAG('B', 'G', 'R', 'A') },
      { PIX_FMT_RGBA,    MKTAG('R', 'G', 'B', 'A') },
      { PIX_FMT_ABGR,    MKTAG('A', 'B', 'G', 'R') },
      { PIX_FMT_GRAY16BE,MKTAG('b', '1', '6', 'g') },
      { PIX_FMT_RGB48BE, MKTAG('b', '4', '8', 'r') },
  
      /* special */
      { PIX_FMT_RGB565LE,MKTAG( 3 ,  0 ,  0 ,  0 ) }, /* flipped RGB565LE */
  
      { PIX_FMT_NONE, 0 },
  };
  
  unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt)
  {
      const PixelFormatTag *tags = ff_raw_pix_fmt_tags;
      while (tags->pix_fmt >= 0) {
          if (tags->pix_fmt == fmt)
              return tags->fourcc;
          tags++;
      }
      return 0;
  }
  