99ab9447d1
BUG=webrtc:5259 Review URL: https://codereview.webrtc.org/1508793002 Cr-Commit-Position: refs/heads/master@{#10925}
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright (c) 2011 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 WEBRTC_MODULES_VIDEO_PROCESSING_DEFLICKERING_H_
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#define WEBRTC_MODULES_VIDEO_PROCESSING_DEFLICKERING_H_
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#include <string.h> // NULL
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#include "webrtc/modules/video_processing/include/video_processing.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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class VPMDeflickering {
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public:
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VPMDeflickering();
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~VPMDeflickering();
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void Reset();
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int32_t ProcessFrame(VideoFrame* frame, VideoProcessing::FrameStats* stats);
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private:
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int32_t PreDetection(uint32_t timestamp,
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const VideoProcessing::FrameStats& stats);
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int32_t DetectFlicker();
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enum { kMeanBufferLength = 32 };
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enum { kFrameHistory_size = 15 };
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enum { kNumProbs = 12 };
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enum { kNumQuants = kNumProbs + 2 };
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enum { kMaxOnlyLength = 5 };
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uint32_t mean_buffer_length_;
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uint8_t detection_state_; // 0: No flickering
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// 1: Flickering detected
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// 2: In flickering
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int32_t mean_buffer_[kMeanBufferLength];
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uint32_t timestamp_buffer_[kMeanBufferLength];
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uint32_t frame_rate_;
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static const uint16_t prob_uw16_[kNumProbs];
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static const uint16_t weight_uw16_[kNumQuants - kMaxOnlyLength];
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uint8_t quant_hist_uw8_[kFrameHistory_size][kNumQuants];
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_PROCESSING_DEFLICKERING_H_
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