| /* |
| * Copyright (c) 2018, 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 AOM_AV1_COMMON_OBU_UTIL_H_ |
| #define AOM_AV1_COMMON_OBU_UTIL_H_ |
| |
| #include "aom/aom_codec.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| 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; // Whether the optional OBU extension header is present. |
| // The following fields come from the OBU extension header. They are set to 0 |
| // if has_extension is false. |
| 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); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_OBU_UTIL_H_ |