diff options
Diffstat (limited to 'third_party/aom/av1/encoder/hash_motion.h')
| -rw-r--r-- | third_party/aom/av1/encoder/hash_motion.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/hash_motion.h b/third_party/aom/av1/encoder/hash_motion.h new file mode 100644 index 0000000000..8974ba27cb --- /dev/null +++ b/third_party/aom/av1/encoder/hash_motion.h @@ -0,0 +1,103 @@ +/* + * 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 AOM_AV1_ENCODER_HASH_MOTION_H_ +#define AOM_AV1_ENCODER_HASH_MOTION_H_ + +#include <stdbool.h> + +#include "config/aom_config.h" + +#include "aom/aom_integer.h" +#include "aom_scale/yv12config.h" +#include "av1/encoder/hash.h" +#include "third_party/vector/vector.h" +#ifdef __cplusplus +extern "C" { +#endif + +// Block size used for force_integer_mv decisions +#define FORCE_INT_MV_DECISION_BLOCK_SIZE 8 + +// store a block's hash info. +// x and y are the position from the top left of the picture +// hash_value2 is used to store the second hash value +typedef struct _block_hash { + int16_t x; + int16_t y; + uint32_t hash_value2; +} block_hash; + +typedef struct _hash_table { + Vector **p_lookup_table; +} hash_table; + +struct intrabc_hash_info; + +typedef struct intrabc_hash_info { + // buffer for hash value calculation of a block + // used only in av1_get_block_hash_value() + // [first hash/second hash] + // [two buffers used ping-pong] + uint32_t *hash_value_buffer[2][2]; + hash_table intrabc_hash_table; + + CRC_CALCULATOR crc_calculator1; + CRC_CALCULATOR crc_calculator2; + int g_crc_initialized; +} IntraBCHashInfo; + +void av1_hash_table_init(IntraBCHashInfo *intra_bc_hash_info); +void av1_hash_table_clear_all(hash_table *p_hash_table); +void av1_hash_table_destroy(hash_table *p_hash_table); +bool av1_hash_table_create(hash_table *p_hash_table); +int32_t av1_hash_table_count(const hash_table *p_hash_table, + uint32_t hash_value); +Iterator av1_hash_get_first_iterator(hash_table *p_hash_table, + uint32_t hash_value); +int32_t av1_has_exact_match(hash_table *p_hash_table, uint32_t hash_value1, + uint32_t hash_value2); +void av1_generate_block_2x2_hash_value(IntraBCHashInfo *intra_bc_hash_info, + const YV12_BUFFER_CONFIG *picture, + uint32_t *pic_block_hash[2], + int8_t *pic_block_same_info[3]); +void av1_generate_block_hash_value(IntraBCHashInfo *intra_bc_hash_info, + const YV12_BUFFER_CONFIG *picture, + int block_size, + uint32_t *src_pic_block_hash[2], + uint32_t *dst_pic_block_hash[2], + int8_t *src_pic_block_same_info[3], + int8_t *dst_pic_block_same_info[3]); +bool av1_add_to_hash_map_by_row_with_precal_data(hash_table *p_hash_table, + uint32_t *pic_hash[2], + int8_t *pic_is_same, + int pic_width, int pic_height, + int block_size); + +// check whether the block starts from (x_start, y_start) with the size of +// block_size x block_size has the same color in all rows +int av1_hash_is_horizontal_perfect(const YV12_BUFFER_CONFIG *picture, + int block_size, int x_start, int y_start); +// check whether the block starts from (x_start, y_start) with the size of +// block_size x block_size has the same color in all columns +int av1_hash_is_vertical_perfect(const YV12_BUFFER_CONFIG *picture, + int block_size, int x_start, int y_start); + +void av1_get_block_hash_value(IntraBCHashInfo *intrabc_hash_info, + const uint8_t *y_src, int stride, int block_size, + uint32_t *hash_value1, uint32_t *hash_value2, + int use_highbitdepth); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AV1_ENCODER_HASH_MOTION_H_ |