void ff_dnn_free_model_tf(DNNModel **model) { TFModel *tf_model; if (*model){ tf_model = (TFModel *)(*model)->model; if (tf_model->graph){ TF_DeleteGraph(tf_model->graph); } if (tf_model->session){ TF_CloseSession(tf_model->session, tf_model->status); TF_DeleteSession(tf_model->session, tf_model->status); } if (tf_model->status){ TF_DeleteStatus(tf_model->status); } if (tf_model->input_tensor){ TF_DeleteTensor(tf_model->input_tensor); } if (tf_model->output_data){ av_freep(&(tf_model->output_data->data)); } av_freep(&tf_model); av_freep(model); } }
DNNModel *ff_dnn_load_model_tf(const char *model_filename) { DNNModel *model = NULL; TFModel *tf_model = NULL; TF_Buffer *graph_def; TF_ImportGraphDefOptions *graph_opts; model = av_malloc(sizeof(DNNModel)); if (!model){ return NULL; } tf_model = av_malloc(sizeof(TFModel)); if (!tf_model){ av_freep(&model); return NULL; } tf_model->session = NULL; tf_model->input_tensor = NULL; tf_model->output_data = NULL; graph_def = read_graph(model_filename); if (!graph_def){ av_freep(&tf_model); av_freep(&model); return NULL; } tf_model->graph = TF_NewGraph(); tf_model->status = TF_NewStatus(); graph_opts = TF_NewImportGraphDefOptions(); TF_GraphImportGraphDef(tf_model->graph, graph_def, graph_opts, tf_model->status); TF_DeleteImportGraphDefOptions(graph_opts); TF_DeleteBuffer(graph_def); if (TF_GetCode(tf_model->status) != TF_OK){ TF_DeleteGraph(tf_model->graph); TF_DeleteStatus(tf_model->status); av_freep(&tf_model); av_freep(&model); return NULL; } model->model = (void *)tf_model; model->set_input_output = &set_input_output_tf; return model; }
static DNNReturnType load_tf_model(TFModel *tf_model, const char *model_filename) { TF_Buffer *graph_def; TF_ImportGraphDefOptions *graph_opts; graph_def = read_graph(model_filename); if (!graph_def){ return DNN_ERROR; } tf_model->graph = TF_NewGraph(); tf_model->status = TF_NewStatus(); graph_opts = TF_NewImportGraphDefOptions(); TF_GraphImportGraphDef(tf_model->graph, graph_def, graph_opts, tf_model->status); TF_DeleteImportGraphDefOptions(graph_opts); TF_DeleteBuffer(graph_def); if (TF_GetCode(tf_model->status) != TF_OK){ TF_DeleteGraph(tf_model->graph); TF_DeleteStatus(tf_model->status); return DNN_ERROR; } return DNN_SUCCESS; }