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/*
* Copyright (c) 2017, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_DECODER_OBU_H
#define AV1_DECODER_OBU_H
#include "aom/aom_codec.h"
#include "av1/decoder/decoder.h"
typedef struct {
size_t size; // Size (1 or 2 bytes) of the OBU header (including the
// optional OBU extension header) in the bitstream.
OBU_TYPE type;
int has_size_field;
int has_extension;
// The following fields come from the OBU extension header and therefore are
// only used if has_extension is true.
int temporal_layer_id;
int spatial_layer_id;
} ObuHeader;
aom_codec_err_t aom_read_obu_header(uint8_t *buffer, size_t buffer_length,
size_t *consumed, ObuHeader *header,
int is_annexb);
aom_codec_err_t aom_read_obu_header_and_size(const uint8_t *data,
size_t bytes_available,
int is_annexb,
ObuHeader *obu_header,
size_t *const payload_size,
size_t *const bytes_read);
// Try to decode one frame from a buffer.
// Returns 1 if we decoded a frame,
// 0 if we didn't decode a frame but that's okay
// (eg, if there was a frame but we skipped it),
// or -1 on error
int aom_decode_frame_from_obus(struct AV1Decoder *pbi, const uint8_t *data,
const uint8_t *data_end,
const uint8_t **p_data_end);
aom_codec_err_t aom_get_num_layers_from_operating_point_idc(
int operating_point_idc, unsigned int *num_spatial_layers,
unsigned int *num_temporal_layers);
#endif
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