chromium/third_party/dav1d/libdav1d/src/obu.c

/*
 * Copyright © 2018-2021, VideoLAN and dav1d authors
 * Copyright © 2018, Two Orioles, LLC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include <errno.h>
#include <limits.h>
#include <stdio.h>

#include "dav1d/data.h"

#include "common/frame.h"
#include "common/intops.h"
#include "common/validate.h"

#include "src/decode.h"
#include "src/getbits.h"
#include "src/levels.h"
#include "src/log.h"
#include "src/obu.h"
#include "src/ref.h"
#include "src/thread_task.h"

static int check_trailing_bits(GetBits *const gb,
                               const int strict_std_compliance)
{ … }

static NOINLINE int parse_seq_hdr(Dav1dSequenceHeader *const hdr,
                                  GetBits *const gb,
                                  const int strict_std_compliance)
{ … }

int dav1d_parse_sequence_header(Dav1dSequenceHeader *const out,
                                const uint8_t *const ptr, const size_t sz)
{ … }

static int read_frame_size(Dav1dContext *const c, GetBits *const gb,
                           const int use_ref)
{ … }

static inline int tile_log2(const int sz, const int tgt) { … }

static const Dav1dLoopfilterModeRefDeltas default_mode_ref_deltas = …;

static int parse_frame_hdr(Dav1dContext *const c, GetBits *const gb) { … }

static void parse_tile_hdr(Dav1dContext *const c, GetBits *const gb) { … }

ptrdiff_t dav1d_parse_obus(Dav1dContext *const c, Dav1dData *const in) { … }