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1 /* | 1 /* |
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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31 const VideoProcessing::FrameStats& stats); | 31 const VideoProcessing::FrameStats& stats); |
32 | 32 |
33 int32_t DetectFlicker(); | 33 int32_t DetectFlicker(); |
34 | 34 |
35 enum { kMeanBufferLength = 32 }; | 35 enum { kMeanBufferLength = 32 }; |
36 enum { kFrameHistory_size = 15 }; | 36 enum { kFrameHistory_size = 15 }; |
37 enum { kNumProbs = 12 }; | 37 enum { kNumProbs = 12 }; |
38 enum { kNumQuants = kNumProbs + 2 }; | 38 enum { kNumQuants = kNumProbs + 2 }; |
39 enum { kMaxOnlyLength = 5 }; | 39 enum { kMaxOnlyLength = 5 }; |
40 | 40 |
41 uint32_t mean_buffer_length_; | 41 uint32_t mean_buffer_length_; |
42 uint8_t detection_state_; // 0: No flickering | 42 uint8_t detection_state_; // 0: No flickering |
43 // 1: Flickering detected | 43 // 1: Flickering detected |
44 // 2: In flickering | 44 // 2: In flickering |
45 int32_t mean_buffer_[kMeanBufferLength]; | 45 int32_t mean_buffer_[kMeanBufferLength]; |
46 uint32_t timestamp_buffer_[kMeanBufferLength]; | 46 uint32_t timestamp_buffer_[kMeanBufferLength]; |
47 uint32_t frame_rate_; | 47 uint32_t frame_rate_; |
48 static const uint16_t prob_uw16_[kNumProbs]; | 48 static const uint16_t prob_uw16_[kNumProbs]; |
49 static const uint16_t weight_uw16_[kNumQuants - kMaxOnlyLength]; | 49 static const uint16_t weight_uw16_[kNumQuants - kMaxOnlyLength]; |
50 uint8_t quant_hist_uw8_[kFrameHistory_size][kNumQuants]; | 50 uint8_t quant_hist_uw8_[kFrameHistory_size][kNumQuants]; |
51 }; | 51 }; |
52 | 52 |
53 } // namespace webrtc | 53 } // namespace webrtc |
54 | 54 |
55 #endif // WEBRTC_MODULES_VIDEO_PROCESSING_DEFLICKERING_H_ | 55 #endif // WEBRTC_MODULES_VIDEO_PROCESSING_DEFLICKERING_H_ |
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