GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavfilter/dnn/dnn_backend_native_layer_depth2space.c Lines: 33 51 64.7 %
Date: 2020-09-25 23:16:12 Branches: 12 20 60.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2018 Sergey Lavrushkin
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file
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 * DNN native backend implementation.
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 */
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#include "dnn_backend_native.h"
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#include "libavutil/avassert.h"
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#include "dnn_backend_native_layer_depth2space.h"
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int dnn_load_layer_depth2space(Layer *layer, AVIOContext *model_file_context, int file_size, int operands_num)
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{
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    DepthToSpaceParams *params;
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    int dnn_size = 0;
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    params = av_malloc(sizeof(*params));
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    if (!params)
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        return 0;
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    params->block_size = (int32_t)avio_rl32(model_file_context);
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    dnn_size += 4;
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    layer->input_operand_indexes[0] = (int32_t)avio_rl32(model_file_context);
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    layer->output_operand_index = (int32_t)avio_rl32(model_file_context);
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    dnn_size += 8;
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    layer->params = params;
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    if (layer->input_operand_indexes[0] >= operands_num || layer->output_operand_index >= operands_num) {
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        return 0;
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    }
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    return dnn_size;
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}
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int dnn_execute_layer_depth2space(DnnOperand *operands, const int32_t *input_operand_indexes,
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                                  int32_t output_operand_index, const void *parameters, NativeContext *ctx)
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{
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    float *output;
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1
    const DepthToSpaceParams *params = (const DepthToSpaceParams *)parameters;
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1
    int block_size = params->block_size;
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1
    int32_t input_operand_index = input_operand_indexes[0];
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1
    int number = operands[input_operand_index].dims[0];
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1
    int height = operands[input_operand_index].dims[1];
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1
    int width = operands[input_operand_index].dims[2];
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1
    int channels = operands[input_operand_index].dims[3];
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    const float *input = operands[input_operand_index].data;
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    int y, x, by, bx, ch;
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    int new_channels = channels / (block_size * block_size);
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1
    int output_linesize = width * channels;
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1
    int by_linesize = output_linesize / block_size;
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1
    int x_linesize = new_channels * block_size;
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    DnnOperand *output_operand = &operands[output_operand_index];
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1
    output_operand->dims[0] = number;
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1
    output_operand->dims[1] = height * block_size;
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1
    output_operand->dims[2] = width * block_size;
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1
    output_operand->dims[3] = new_channels;
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1
    output_operand->data_type = operands[input_operand_index].data_type;
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1
    output_operand->length = calculate_operand_data_length(output_operand);
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    if (output_operand->length <= 0) {
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        av_log(ctx, AV_LOG_ERROR, "The output data length overflow\n");
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        return DNN_ERROR;
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    }
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    output_operand->data = av_realloc(output_operand->data, output_operand->length);
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    if (!output_operand->data) {
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        av_log(ctx, AV_LOG_ERROR, "Failed to reallocate memory for output\n");
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        return DNN_ERROR;
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    }
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    output = output_operand->data;
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    for (y = 0; y < height; ++y){
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        for (x = 0; x < width; ++x){
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            for (by = 0; by < block_size; ++by){
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                for (bx = 0; bx < block_size; ++bx){
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                    for (ch = 0; ch < new_channels; ++ch){
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                        output[by * by_linesize + x * x_linesize + bx * new_channels + ch] = input[ch];
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                    }
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                    input += new_channels;
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                }
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            }
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        }
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        output += output_linesize;
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    }
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    return 0;
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}