1 /* 2 * Copyright 2020 The WebRTC Project Authors. All rights reserved. 3 * 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 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VIDEO_ADAPTATION_QUALITY_SCALER_RESOURCE_H_ 12 #define VIDEO_ADAPTATION_QUALITY_SCALER_RESOURCE_H_ 13 14 #include <memory> 15 #include <queue> 16 #include <string> 17 18 #include "absl/types/optional.h" 19 #include "api/scoped_refptr.h" 20 #include "api/video/video_adaptation_reason.h" 21 #include "api/video_codecs/video_encoder.h" 22 #include "call/adaptation/degradation_preference_provider.h" 23 #include "call/adaptation/resource_adaptation_processor_interface.h" 24 #include "modules/video_coding/utility/quality_scaler.h" 25 #include "video/adaptation/video_stream_encoder_resource.h" 26 27 namespace webrtc { 28 29 // Handles interaction with the QualityScaler. 30 class QualityScalerResource : public VideoStreamEncoderResource, 31 public QualityScalerQpUsageHandlerInterface { 32 public: 33 static rtc::scoped_refptr<QualityScalerResource> Create(); 34 35 QualityScalerResource(); 36 ~QualityScalerResource() override; 37 38 bool is_started() const; 39 40 void StartCheckForOveruse(VideoEncoder::QpThresholds qp_thresholds); 41 void StopCheckForOveruse(); 42 void SetQpThresholds(VideoEncoder::QpThresholds qp_thresholds); 43 bool QpFastFilterLow(); 44 void OnEncodeCompleted(const EncodedImage& encoded_image, 45 int64_t time_sent_in_us); 46 void OnFrameDropped(EncodedImageCallback::DropReason reason); 47 48 // QualityScalerQpUsageHandlerInterface implementation. 49 void OnReportQpUsageHigh() override; 50 void OnReportQpUsageLow() override; 51 52 private: 53 std::unique_ptr<QualityScaler> quality_scaler_ 54 RTC_GUARDED_BY(encoder_queue()); 55 }; 56 57 } // namespace webrtc 58 59 #endif // VIDEO_ADAPTATION_QUALITY_SCALER_RESOURCE_H_ 60