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1 /*
2  * Copyright (c) 2020
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * DNN inference functions interface for native backend.
24  */
25 
26 #ifndef AVFILTER_DNN_DNN_BACKEND_NATIVE_LAYER_MATHUNARY_H
27 #define AVFILTER_DNN_DNN_BACKEND_NATIVE_LAYER_MATHUNARY_H
28 
29 #include "libavformat/avio.h"
30 #include "dnn_backend_native.h"
31 
32 typedef enum {
33     DMUO_ABS = 0,
34     DMUO_SIN = 1,
35     DMUO_COS = 2,
36     DMUO_TAN = 3,
37     DMUO_ASIN = 4,
38     DMUO_ACOS = 5,
39     DMUO_ATAN = 6,
40     DMUO_SINH = 7,
41     DMUO_COSH = 8,
42     DMUO_TANH = 9,
43     DMUO_ASINH = 10,
44     DMUO_ACOSH = 11,
45     DMUO_ATANH = 12,
46     DMUO_CEIL = 13,
47     DMUO_FLOOR = 14,
48     DMUO_ROUND = 15,
49     DMUO_EXP = 16,
50     DMUO_COUNT
51 } DNNMathUnaryOperation;
52 
53 typedef struct DnnLayerMathUnaryParams{
54     DNNMathUnaryOperation un_op;
55 } DnnLayerMathUnaryParams;
56 
57 /**
58  * @brief Load the Unary Math Layer.
59  *
60  * It assigns the unary math layer with DnnLayerMathUnaryParams
61  * after parsing from the model file context.
62  *
63  * @param layer pointer to the DNN layer instance
64  * @param model_file_context pointer to model file context
65  * @param file_size model file size to check if data is read
66  * correctly from the model file
67  * @param operands_num operand count of the whole model to
68  * check if data is read correctly from the model file
69  * @return number of bytes read from the model file
70  * @retval 0 if out of memory or an error occurs
71  */
72 int ff_dnn_load_layer_math_unary(Layer *layer, AVIOContext *model_file_context, int file_size, int operands_num);
73 
74 /**
75  * @brief Execute the Unary Math Layer.
76  *
77  * It applies the unary operator parsed while
78  * loading to the given input operands.
79  *
80  * @param operands all operands for the model
81  * @param input_operand_indexes input operand indexes for this layer
82  * @param output_operand_index output operand index for this layer
83  * @param parameters unary math layer parameters
84  * @param ctx pointer to Native model context for logging
85  * @retval 0 if the execution succeeds
86  * @retval AVERROR(ENOMEM) if memory allocation fails
87  * @retval AVERROR(EINVAL) for invalid arguments
88  */
89 int ff_dnn_execute_layer_math_unary(DnnOperand *operands, const int32_t *input_operand_indexes,
90                                     int32_t output_operand_index, const void *parameters, NativeContext *ctx);
91 
92 #endif
93