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/*
* 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_COMMON_SCAN_H_
#define AV1_COMMON_SCAN_H_
#include "aom/aom_integer.h"
#include "aom_ports/mem.h"
#include "av1/common/enums.h"
#include "av1/common/onyxc_int.h"
#include "av1/common/blockd.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_NEIGHBORS 2
typedef enum SCAN_MODE {
SCAN_MODE_ZIG_ZAG,
SCAN_MODE_COL_DIAG,
SCAN_MODE_ROW_DIAG,
SCAN_MODE_COL_1D,
SCAN_MODE_ROW_1D,
SCAN_MODES
} SCAN_MODE;
extern const SCAN_ORDER av1_default_scan_orders[TX_SIZES];
extern const SCAN_ORDER av1_scan_orders[TX_SIZES_ALL][TX_TYPES];
void av1_deliver_eob_threshold(const AV1_COMMON *cm, MACROBLOCKD *xd);
static INLINE int get_coef_context(const int16_t *neighbors,
const uint8_t *token_cache, int c) {
return (1 + token_cache[neighbors[MAX_NEIGHBORS * c + 0]] +
token_cache[neighbors[MAX_NEIGHBORS * c + 1]]) >>
1;
}
static INLINE const SCAN_ORDER *get_default_scan(TX_SIZE tx_size,
TX_TYPE tx_type) {
return &av1_scan_orders[tx_size][tx_type];
}
static INLINE const SCAN_ORDER *get_scan(TX_SIZE tx_size, TX_TYPE tx_type) {
return get_default_scan(tx_size, tx_type);
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_COMMON_SCAN_H_
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