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libavfilter: Removes stored DNN models. Adds support for native backend model file...
[ffmpeg] / libavfilter / dnn_backend_native.h
1 /*
2  * Copyright (c) 2018 Sergey Lavrushkin
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
27 #ifndef AVFILTER_DNN_BACKEND_NATIVE_H
28 #define AVFILTER_DNN_BACKEND_NATIVE_H
29
30 #include "dnn_interface.h"
31 #include "libavformat/avio.h"
32
33 typedef enum {INPUT, CONV, DEPTH_TO_SPACE} DNNLayerType;
34
35 typedef enum {RELU, TANH, SIGMOID} DNNActivationFunc;
36
37 typedef struct Layer{
38     DNNLayerType type;
39     float *output;
40     void *params;
41 } Layer;
42
43 typedef struct ConvolutionalParams{
44     int32_t input_num, output_num, kernel_size;
45     DNNActivationFunc activation;
46     float *kernel;
47     float *biases;
48 } ConvolutionalParams;
49
50 typedef struct InputParams{
51     int height, width, channels;
52 } InputParams;
53
54 typedef struct DepthToSpaceParams{
55     int block_size;
56 } DepthToSpaceParams;
57
58 // Represents simple feed-forward convolutional network.
59 typedef struct ConvolutionalNetwork{
60     Layer *layers;
61     int32_t layers_num;
62 } ConvolutionalNetwork;
63
64 DNNModel *ff_dnn_load_model_native(const char *model_filename);
65
66 DNNReturnType ff_dnn_execute_model_native(const DNNModel *model);
67
68 void ff_dnn_free_model_native(DNNModel **model);
69
70 #endif