mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
f4b3c0e55c
to support dnn networks more general, we need to know the input info of the dnn model. background: The data type of dnn model's input could be float32, uint8 or fp16, etc. And the w/h of input image could be fixed or variable. Signed-off-by: Guo, Yejun <yejun.guo@intel.com> Signed-off-by: Pedro Arthur <bygrandao@gmail.com>
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2018 Sergey Lavrushkin
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* DNN inference engine interface.
|
|
*/
|
|
|
|
#ifndef AVFILTER_DNN_INTERFACE_H
|
|
#define AVFILTER_DNN_INTERFACE_H
|
|
|
|
#include <stdint.h>
|
|
|
|
typedef enum {DNN_SUCCESS, DNN_ERROR} DNNReturnType;
|
|
|
|
typedef enum {DNN_NATIVE, DNN_TF} DNNBackendType;
|
|
|
|
typedef enum {DNN_FLOAT = 1, DNN_UINT8 = 4} DNNDataType;
|
|
|
|
typedef struct DNNData{
|
|
void *data;
|
|
DNNDataType dt;
|
|
int width, height, channels;
|
|
} DNNData;
|
|
|
|
typedef struct DNNModel{
|
|
// Stores model that can be different for different backends.
|
|
void *model;
|
|
// Gets model input information
|
|
// Just reuse struct DNNData here, actually the DNNData.data field is not needed.
|
|
DNNReturnType (*get_input)(void *model, DNNData *input, const char *input_name);
|
|
// Sets model input and output.
|
|
// Should be called at least once before model execution.
|
|
DNNReturnType (*set_input_output)(void *model, DNNData *input, const char *input_name, const char **output_names, uint32_t nb_output);
|
|
} DNNModel;
|
|
|
|
// Stores pointers to functions for loading, executing, freeing DNN models for one of the backends.
|
|
typedef struct DNNModule{
|
|
// Loads model and parameters from given file. Returns NULL if it is not possible.
|
|
DNNModel *(*load_model)(const char *model_filename);
|
|
// Executes model with specified input and output. Returns DNN_ERROR otherwise.
|
|
DNNReturnType (*execute_model)(const DNNModel *model, DNNData *outputs, uint32_t nb_output);
|
|
// Frees memory allocated for model.
|
|
void (*free_model)(DNNModel **model);
|
|
} DNNModule;
|
|
|
|
// Initializes DNNModule depending on chosen backend.
|
|
DNNModule *ff_get_dnn_module(DNNBackendType backend_type);
|
|
|
|
#endif
|