chromium/third_party/ffmpeg/libavcodec/dirac.c

/*
 * Copyright (C) 2007 Marco Gerards <[email protected]>
 * 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
 */

/**
 * @file
 * Dirac Decoder
 * @author Marco Gerards <[email protected]>, David Conrad, Jordi Ortiz <[email protected]>
 */

#include "config.h"

#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"

#include "dirac.h"
#include "get_bits.h"
#include "golomb.h"
#include "mpeg12data.h"

#if CONFIG_DIRAC_PARSE

dirac_source_params;

/* defaults for source parameters */
static const dirac_source_params dirac_source_parameters_defaults[] = …;

/* [DIRAC_STD] Table 10.4 - Available preset pixel aspect ratio values */
static const AVRational dirac_preset_aspect_ratios[] = …;

/* [DIRAC_STD] Values 9,10 of 10.3.5 Frame Rate.
 * Table 10.3 Available preset frame rate values
 */
static const AVRational dirac_frame_rate[] = …;

/* [DIRAC_STD] This should be equivalent to Table 10.5 Available signal
 * range presets */
static const struct { … } pixel_range_presets[] = …;

static const enum AVColorPrimaries dirac_primaries[] = …;

static const struct { … } dirac_color_presets[] = …;

/* [DIRAC_STD] Table 10.2 Supported chroma sampling formats */
static const enum AVPixelFormat dirac_pix_fmt[][3] = …;

/* [DIRAC_STD] 10.3 Parse Source Parameters.
 * source_parameters(base_video_format) */
static int parse_source_parameters(AVDiracSeqHeader *dsh, GetBitContext *gb,
                                   void *log_ctx)
{ … }

/* [DIRAC_STD] 10. Sequence Header. sequence_header() */
int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
                                   const uint8_t *buf, size_t buf_size,
                                   void *log_ctx)
{ … }
#else
int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
                                   const uint8_t *buf, size_t buf_size,
                                   void *log_ctx)
{
    return AVERROR(ENOSYS);
}
#endif