| /* |
| * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| // TODO(mflodman) ViEEncoder has a time check to not send key frames too often, |
| // move the logic to this class. |
| |
| #ifndef WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_ |
| #define WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_ |
| |
| #include <map> |
| #include <vector> |
| |
| #include "webrtc/base/constructormagic.h" |
| #include "webrtc/base/scoped_ptr.h" |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| |
| class CriticalSectionWrapper; |
| class EncoderStateFeedbackObserver; |
| class RtcpIntraFrameObserver; |
| class ViEEncoder; |
| |
| class EncoderStateFeedback { |
| public: |
| friend class EncoderStateFeedbackObserver; |
| |
| EncoderStateFeedback(); |
| ~EncoderStateFeedback(); |
| |
| // Adds an encoder to receive feedback for a set of SSRCs. |
| void AddEncoder(const std::vector<uint32_t>& ssrc, ViEEncoder* encoder); |
| |
| // Removes a registered ViEEncoder. |
| void RemoveEncoder(const ViEEncoder* encoder); |
| |
| // Returns an observer to register at the requesting class. The observer has |
| // the same lifetime as the EncoderStateFeedback instance. |
| RtcpIntraFrameObserver* GetRtcpIntraFrameObserver(); |
| |
| protected: |
| // Called by EncoderStateFeedbackObserver when a new key frame is requested. |
| void OnReceivedIntraFrameRequest(uint32_t ssrc); |
| void OnReceivedSLI(uint32_t ssrc, uint8_t picture_id); |
| void OnReceivedRPSI(uint32_t ssrc, uint64_t picture_id); |
| void OnLocalSsrcChanged(uint32_t old_ssrc, uint32_t new_ssrc); |
| |
| private: |
| typedef std::map<uint32_t, ViEEncoder*> SsrcEncoderMap; |
| |
| rtc::scoped_ptr<CriticalSectionWrapper> crit_; |
| |
| // Instance registered at the class requesting new key frames. |
| rtc::scoped_ptr<EncoderStateFeedbackObserver> observer_; |
| |
| // Maps a unique ssrc to the given encoder. |
| SsrcEncoderMap encoders_; |
| |
| RTC_DISALLOW_COPY_AND_ASSIGN(EncoderStateFeedback); |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_ |