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Diffstat (limited to 'third_party/libwebrtc/modules/congestion_controller/rtp/transport_feedback_demuxer.h')
-rw-r--r-- | third_party/libwebrtc/modules/congestion_controller/rtp/transport_feedback_demuxer.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/congestion_controller/rtp/transport_feedback_demuxer.h b/third_party/libwebrtc/modules/congestion_controller/rtp/transport_feedback_demuxer.h new file mode 100644 index 0000000000..278c144b61 --- /dev/null +++ b/third_party/libwebrtc/modules/congestion_controller/rtp/transport_feedback_demuxer.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2019 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. + */ +#ifndef MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_DEMUXER_H_ +#define MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_DEMUXER_H_ + +#include <map> +#include <utility> +#include <vector> + +#include "api/sequence_checker.h" +#include "modules/include/module_common_types_public.h" +#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h" +#include "rtc_base/numerics/sequence_number_unwrapper.h" +#include "rtc_base/system/no_unique_address.h" + +namespace webrtc { + +// Implementation of StreamFeedbackProvider that provides a way for +// implementations of StreamFeedbackObserver to register for feedback callbacks +// for a given set of SSRCs. +// Registration methods need to be called from the same execution context +// (thread or task queue) and callbacks to +// StreamFeedbackObserver::OnPacketFeedbackVector will be made in that same +// context. +// TODO(tommi): This appears to be the only implementation of this interface. +// Do we need the interface? +class TransportFeedbackDemuxer final : public StreamFeedbackProvider { + public: + TransportFeedbackDemuxer(); + + // Implements StreamFeedbackProvider interface + void RegisterStreamFeedbackObserver( + std::vector<uint32_t> ssrcs, + StreamFeedbackObserver* observer) override; + void DeRegisterStreamFeedbackObserver( + StreamFeedbackObserver* observer) override; + void AddPacket(const RtpPacketSendInfo& packet_info); + void OnTransportFeedback(const rtcp::TransportFeedback& feedback); + + private: + RTC_NO_UNIQUE_ADDRESS SequenceChecker observer_checker_; + RtpSequenceNumberUnwrapper seq_num_unwrapper_ + RTC_GUARDED_BY(&observer_checker_); + std::map<int64_t, StreamFeedbackObserver::StreamPacketInfo> history_ + RTC_GUARDED_BY(&observer_checker_); + + // Maps a set of ssrcs to corresponding observer. Vectors are used rather than + // set/map to ensure that the processing order is consistent independently of + // the randomized ssrcs. + std::vector<std::pair<std::vector<uint32_t>, StreamFeedbackObserver*>> + observers_ RTC_GUARDED_BY(&observer_checker_); +}; +} // namespace webrtc + +#endif // MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_DEMUXER_H_ |