mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
efcc8fddd6
* commit 'e02de9df4b218bd6e1e927b67fd4075741545688': lavc: export Dirac parsing API used by the ogg demuxer as public Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*
|
|
* 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"
|
|
|
|
/**
|
|
* 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_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 */
|