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_DNN_BACKEND_NATIVE_LAYER_DEPTH2SPACE_H 28 #define AVFILTER_DNN_DNN_BACKEND_NATIVE_LAYER_DEPTH2SPACE_H 29 30 #include "../dnn_interface.h" 31 #include "libavformat/avio.h" 32 33 typedef struct DepthToSpaceParams{ 34 int block_size; 35 } DepthToSpaceParams; 36 37 /** 38 * @brief Load the Depth to Space Layer. 39 * 40 * It assigns the depth to space layer with DepthToSpaceParams 41 * after parsing from the model file context. 42 * 43 * @param layer pointer to the DNN layer instance 44 * @param model_file_context pointer to model file context 45 * @param file_size model file size to check if data is read 46 * correctly from the model file 47 * @param operands_num operand count of the whole model to 48 * check if data is read correctly from the model file 49 * @return number of bytes read from the model file 50 * @retval 0 if an error occurs or out of memory 51 */ 52 int ff_dnn_load_layer_depth2space(Layer *layer, AVIOContext *model_file_context, int file_size, int operands_num); 53 54 /** 55 * @brief Execute the Depth to Space Layer. 56 * 57 * It rearranges the input data from depth into spatial 58 * form by applying Depth to Space transformation. 59 * 60 * @param operands all operands for the model 61 * @param input_operand_indexes input operand indexes for this layer 62 * @param output_operand_index output operand index for this layer 63 * @param parameters depth to space layer parameters 64 * @param ctx pointer to Native model context for logging 65 * @retval 0 if the execution succeeds 66 * @retval AVERROR(ENOMEM) if memory allocation fails 67 * @retval AVERROR(EINVAL) for invalid arguments 68 */ 69 int ff_dnn_execute_layer_depth2space(DnnOperand *operands, const int32_t *input_operand_indexes, 70 int32_t output_operand_index, const void *parameters, NativeContext *ctx); 71 72 #endif 73