2 * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
3 * Copyright (C) 2009 David Conrad
4 * Copyright (C) 2011 Jordi Ortiz
6 * This file is part of FFmpeg.
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.
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.
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
23 #ifndef AVCODEC_DIRAC_H
24 #define AVCODEC_DIRAC_H
28 * Interface to Dirac Decoder/Encoder
29 * @author Marco Gerards <marco@gnu.org>
30 * @author David Conrad
40 * Dirac Specification ->
43 * VC-2 Specification ->
47 enum DiracParseCodes {
48 DIRAC_PCODE_SEQ_HEADER = 0x00,
49 DIRAC_PCODE_END_SEQ = 0x10,
50 DIRAC_PCODE_AUX = 0x20,
51 DIRAC_PCODE_PAD = 0x30,
52 DIRAC_PCODE_PICTURE_CODED = 0x08,
53 DIRAC_PCODE_PICTURE_RAW = 0x48,
54 DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
55 DIRAC_PCODE_PICTURE_HQ = 0xE8,
56 DIRAC_PCODE_MAGIC = 0x42424344,
59 typedef struct DiracVersionInfo {
64 typedef struct dirac_source_params {
67 uint8_t chroma_format; ///< 0: 444 1: 422 2: 420
70 uint8_t top_field_first;
72 uint8_t frame_rate_index; ///< index into dirac_frame_rate[]
73 uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[]
76 uint16_t clean_height;
77 uint16_t clean_left_offset;
78 uint16_t clean_right_offset;
80 uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[]
81 uint8_t color_spec_index; ///< index into dirac_color_spec_presets[]
82 } dirac_source_params;
84 int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
85 dirac_source_params *source,
86 DiracVersionInfo *version,
89 #endif /* AVCODEC_DIRAC_H */