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86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_
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#define MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_
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#include <memory>
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#include "api/scoped_refptr.h"
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#include "api/video/video_frame_buffer.h"
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#include "common_video/include/video_frame_buffer_pool.h"
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#include "modules/video_processing/util/denoiser_filter.h"
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#include "modules/video_processing/util/noise_estimation.h"
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#include "modules/video_processing/util/skin_detection.h"
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namespace webrtc {
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class VideoDenoiser {
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public:
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explicit VideoDenoiser(bool runtime_cpu_detection);
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rtc::scoped_refptr<I420BufferInterface> DenoiseFrame(
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rtc::scoped_refptr<I420BufferInterface> frame,
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bool noise_estimation_enabled);
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private:
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void DenoiserReset(rtc::scoped_refptr<I420BufferInterface> frame);
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// Check the mb position, return 1: close to the frame center (between 1/8
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// and 7/8 of width/height), 3: close to the border (out of 1/16 and 15/16
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// of width/height), 2: in between.
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int PositionCheck(int mb_row, int mb_col, int noise_level);
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// To reduce false detection in moving object detection (MOD).
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void ReduceFalseDetection(const std::unique_ptr<uint8_t[]>& d_status,
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std::unique_ptr<uint8_t[]>* d_status_red,
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int noise_level);
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// Return whether a block might cause trailing artifact by checking if one of
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// its neighbor blocks is a moving edge block.
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bool IsTrailingBlock(const std::unique_ptr<uint8_t[]>& d_status,
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int mb_row,
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int mb_col);
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// Copy input blocks to dst buffer on moving object blocks (MOB).
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void CopySrcOnMOB(const uint8_t* y_src,
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int stride_src,
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uint8_t* y_dst,
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int stride_dst);
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// Copy luma margin blocks when frame width/height not divisible by 16.
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void CopyLumaOnMargin(const uint8_t* y_src,
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int stride_src,
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uint8_t* y_dst,
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int stride_dst);
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int width_;
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int height_;
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int mb_rows_;
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int mb_cols_;
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CpuType cpu_type_;
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std::unique_ptr<DenoiserFilter> filter_;
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std::unique_ptr<NoiseEstimation> ne_;
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// 1 for moving edge block, 0 for static block.
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std::unique_ptr<uint8_t[]> moving_edge_;
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// 1 for moving object block, 0 for static block.
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std::unique_ptr<uint8_t[]> moving_object_;
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// x_density_ and y_density_ are used in MOD process.
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std::unique_ptr<uint8_t[]> x_density_;
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std::unique_ptr<uint8_t[]> y_density_;
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// Save the return values by MbDenoise for each block.
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std::unique_ptr<DenoiserDecision[]> mb_filter_decision_;
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VideoFrameBufferPool buffer_pool_;
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rtc::scoped_refptr<I420BufferInterface> prev_buffer_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_
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