tool/VideoPlayer.git

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			/*
			* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
			* Copyright (C) 2009 David Conrad
			* Copyright (C) 2011 Jordi Ortiz
			*
			* 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
			*/

			#ifndef AVCODEC_DIRAC_H
			#define AVCODEC_DIRAC_H

			/**
			* @file
			* Interface to Dirac Decoder/Encoder
			* @author Marco Gerards <marco@gnu.org>
			* @author David Conrad
			* @author Jordi Ortiz
			*/

			#include "avcodec.h"

			/**
			* The spec limits the number of wavelet decompositions to 4 for both
			* level 1 (VC-2) and 128 (long-gop default).
			* 5 decompositions is the maximum before >16-bit buffers are needed.
			* Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
			* the others to 4 decompositions (or 3 for the fidelity filter).
			*
			* We use this instead of MAX_DECOMPOSITIONS to save some memory.
			*/
			#define MAX_DWT_LEVELS 5

			/**
			* Parse code values:
			*
			* Dirac Specification ->
			* 9.6.1 Table 9.1
			*
			* VC-2 Specification ->
			* 10.4.1 Table 10.1
			*/

			enum DiracParseCodes {
			DIRAC_PCODE_SEQ_HEADER = 0x00,
			DIRAC_PCODE_END_SEQ = 0x10,
			DIRAC_PCODE_AUX = 0x20,
			DIRAC_PCODE_PAD = 0x30,
			DIRAC_PCODE_PICTURE_CODED = 0x08,
			DIRAC_PCODE_PICTURE_RAW = 0x48,
			DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
			DIRAC_PCODE_PICTURE_HQ = 0xE8,
			DIRAC_PCODE_INTER_NOREF_CO1 = 0x0A,
			DIRAC_PCODE_INTER_NOREF_CO2 = 0x09,
			DIRAC_PCODE_INTER_REF_CO1 = 0x0D,
			DIRAC_PCODE_INTER_REF_CO2 = 0x0E,
			DIRAC_PCODE_INTRA_REF_CO = 0x0C,
			DIRAC_PCODE_INTRA_REF_RAW = 0x4C,
			DIRAC_PCODE_INTRA_REF_PICT = 0xCC,
			DIRAC_PCODE_MAGIC = 0x42424344,
			};

			typedef struct DiracVersionInfo {
			int major;
			int minor;
			} DiracVersionInfo;

			typedef struct AVDiracSeqHeader {
			unsigned width;
			unsigned height;
			uint8_t chroma_format; ///< 0: 444 1: 422 2: 420

			uint8_t interlaced;
			uint8_t top_field_first;

			uint8_t frame_rate_index; ///< index into dirac_frame_rate[]
			uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[]

			uint16_t clean_width;
			uint16_t clean_height;
			uint16_t clean_left_offset;
			uint16_t clean_right_offset;

			uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[]
			uint8_t color_spec_index; ///< index into dirac_color_spec_presets[]

			int profile;
			int level;

			AVRational framerate;
			AVRational sample_aspect_ratio;

			enum AVPixelFormat pix_fmt;
			enum AVColorRange color_range;
			enum AVColorPrimaries color_primaries;
			enum AVColorTransferCharacteristic color_trc;
			enum AVColorSpace colorspace;

			DiracVersionInfo version;
			int bit_depth;
			} AVDiracSeqHeader;

			/**
			* Parse a Dirac sequence header.
			*
			* @param dsh this function will allocate and fill an AVDiracSeqHeader struct
			* and write it into this pointer. The caller must free it with
			* av_free().
			* @param buf the data buffer
			* @param buf_size the size of the data buffer in bytes
			* @param log_ctx if non-NULL, this function will log errors here
			* @return 0 on success, a negative AVERROR code on failure
			*/
			int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh,
			const uint8_t *buf, size_t buf_size,
			void *log_ctx);

			#endif /* AVCODEC_DIRAC_H */