xref: /aosp_15_r20/external/libaom/av1/encoder/hybrid_fwd_txfm.h (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #ifndef AOM_AV1_ENCODER_HYBRID_FWD_TXFM_H_
13 #define AOM_AV1_ENCODER_HYBRID_FWD_TXFM_H_
14 
15 #include "config/aom_config.h"
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
21 void av1_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff, int diff_stride,
22                   TxfmParam *txfm_param);
23 
24 void av1_highbd_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff,
25                          int diff_stride, TxfmParam *txfm_param);
26 
27 /*!\brief Apply Hadamard or DCT transform
28  *
29  * \callergraph
30  * DCT and Hadamard transforms are commonly used for quick RD score estimation.
31  * The coeff buffer's size should be equal to the number of pixels
32  * corresponding to tx_size.
33  */
34 void av1_quick_txfm(int use_hadamard, TX_SIZE tx_size, BitDepthInfo bd_info,
35                     const int16_t *src_diff, int src_stride, tran_low_t *coeff);
36 #ifdef __cplusplus
37 }  // extern "C"
38 #endif
39 
40 #endif  // AOM_AV1_ENCODER_HYBRID_FWD_TXFM_H_
41