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  1. /*
  2.  * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
  3.  * Copyright (C) 2009 David Conrad
  4.  * Copyright (C) 2011 Jordi Ortiz
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. #ifndef AVCODEC_DIRAC_H
  24. #define AVCODEC_DIRAC_H
  25.  
  26. /**
  27.  * @file
  28.  * Interface to Dirac Decoder/Encoder
  29.  * @author Marco Gerards <marco@gnu.org>
  30.  * @author David Conrad
  31.  * @author Jordi Ortiz
  32.  */
  33.  
  34. #include "avcodec.h"
  35. #include "get_bits.h"
  36.  
  37. typedef struct dirac_source_params {
  38.     unsigned width;
  39.     unsigned height;
  40.     uint8_t chroma_format;          ///< 0: 444  1: 422  2: 420
  41.  
  42.     uint8_t interlaced;
  43.     uint8_t top_field_first;
  44.  
  45.     uint8_t frame_rate_index;       ///< index into dirac_frame_rate[]
  46.     uint8_t aspect_ratio_index;     ///< index into dirac_aspect_ratio[]
  47.  
  48.     uint16_t clean_width;
  49.     uint16_t clean_height;
  50.     uint16_t clean_left_offset;
  51.     uint16_t clean_right_offset;
  52.  
  53.     uint8_t pixel_range_index;      ///< index into dirac_pixel_range_presets[]
  54.     uint8_t color_spec_index;       ///< index into dirac_color_spec_presets[]
  55. } dirac_source_params;
  56.  
  57. int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
  58.                                        dirac_source_params *source);
  59.  
  60. #endif /* AVCODEC_DIRAC_H */
  61.