| /* |
| * 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. |
| */ |
| |
| // This class estimates the incoming available bandwidth. |
| |
| #ifndef MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_ |
| #define MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "modules/include/module.h" |
| #include "modules/include/module_common_types.h" |
| #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
| #include "modules/rtp_rtcp/source/rtcp_packet.h" |
| |
| namespace webrtc { |
| |
| class Clock; |
| |
| // RemoteBitrateObserver is used to signal changes in bitrate estimates for |
| // the incoming streams. |
| class RemoteBitrateObserver { |
| public: |
| // Called when a receive channel group has a new bitrate estimate for the |
| // incoming streams. |
| virtual void OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs, |
| uint32_t bitrate) = 0; |
| |
| virtual ~RemoteBitrateObserver() {} |
| }; |
| |
| // TODO(holmer): Remove when all implementations have been updated. |
| struct ReceiveBandwidthEstimatorStats {}; |
| |
| class RemoteBitrateEstimator : public CallStatsObserver, public Module { |
| public: |
| ~RemoteBitrateEstimator() override {} |
| |
| // Called for each incoming packet. Updates the incoming payload bitrate |
| // estimate and the over-use detector. If an over-use is detected the |
| // remote bitrate estimate will be updated. Note that |payload_size| is the |
| // packet size excluding headers. |
| // Note that |arrival_time_ms| can be of an arbitrary time base. |
| virtual void IncomingPacket(int64_t arrival_time_ms, |
| size_t payload_size, |
| const RTPHeader& header) = 0; |
| |
| // Removes all data for |ssrc|. |
| virtual void RemoveStream(uint32_t ssrc) = 0; |
| |
| // Returns true if a valid estimate exists and sets |bitrate_bps| to the |
| // estimated payload bitrate in bits per second. |ssrcs| is the list of ssrcs |
| // currently being received and of which the bitrate estimate is based upon. |
| virtual bool LatestEstimate(std::vector<uint32_t>* ssrcs, |
| uint32_t* bitrate_bps) const = 0; |
| |
| // TODO(holmer): Remove when all implementations have been updated. |
| virtual bool GetStats(ReceiveBandwidthEstimatorStats* output) const; |
| |
| virtual void SetMinBitrate(int min_bitrate_bps) = 0; |
| |
| protected: |
| static const int64_t kProcessIntervalMs = 500; |
| static const int64_t kStreamTimeOutMs = 2000; |
| }; |
| |
| inline bool RemoteBitrateEstimator::GetStats( |
| ReceiveBandwidthEstimatorStats* output) const { |
| return false; |
| } |
| |
| } // namespace webrtc |
| |
| #endif // MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_ |