diff options
Diffstat (limited to 'third_party/aom/av1/encoder/hash.h')
| -rw-r--r-- | third_party/aom/av1/encoder/hash.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/hash.h b/third_party/aom/av1/encoder/hash.h new file mode 100644 index 000000000..a0fd54fb6 --- /dev/null +++ b/third_party/aom/av1/encoder/hash.h @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2016, 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_ENCODER_HASH_H_ +#define AV1_ENCODER_HASH_H_ + +#include "./aom_config.h" +#include "aom/aom_integer.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct _crc_calculator { + uint32_t remainder; + uint32_t trunc_poly; + uint32_t bits; + uint32_t table[256]; + uint32_t final_result_mask; +} CRC_CALCULATOR; + +// Initialize the crc calculator. It must be executed at least once before +// calling av1_get_crc_value(). +void av1_crc_calculator_init(CRC_CALCULATOR *p_crc_calculator, uint32_t bits, + uint32_t truncPoly); + +uint32_t av1_get_crc_value(CRC_CALCULATOR *p_crc_calculator, uint8_t *p, + int length); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AV1_ENCODER_HASH_H_ |