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dnn_interface.h
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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 engine interface.
24  */
25 
26 #ifndef AVFILTER_DNN_INTERFACE_H
27 #define AVFILTER_DNN_INTERFACE_H
28 
30 
32 
33 typedef struct DNNData{
34  float *data;
36 } DNNData;
37 
38 typedef struct DNNModel{
39  // Stores model that can be different for different backends.
40  void *model;
41  // Sets model input and output, while allocating additional memory for intermediate calculations.
42  // Should be called at least once before model execution.
43  DNNReturnType (*set_input_output)(void *model, DNNData *input, DNNData *output);
44 } DNNModel;
45 
46 // Stores pointers to functions for loading, executing, freeing DNN models for one of the backends.
47 typedef struct DNNModule{
48  // Loads model and parameters from given file. Returns NULL if it is not possible.
49  DNNModel *(*load_model)(const char *model_filename);
50  // Executes model with specified input and output. Returns DNN_ERROR otherwise.
52  // Frees memory allocated for model.
53  void (*free_model)(DNNModel **model);
54 } DNNModule;
55 
56 // Initializes DNNModule depending on chosen backend.
58 
59 #endif
void * model
Definition: dnn_interface.h:40
int channels
Definition: dnn_interface.h:35
DNNReturnType(* set_input_output)(void *model, DNNData *input, DNNData *output)
Definition: dnn_interface.h:43
DNNBackendType
Definition: dnn_interface.h:31
int height
Definition: dnn_interface.h:35
DNNReturnType(* execute_model)(const DNNModel *model)
Definition: dnn_interface.h:51
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
DNNReturnType
Definition: dnn_interface.h:29
void(* free_model)(DNNModel **model)
Definition: dnn_interface.h:53
float * data
Definition: dnn_interface.h:34
DNNModule * ff_get_dnn_module(DNNBackendType backend_type)
Definition: dnn_interface.c:31