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28 // This file contains a class used for gathering statistics from an ongoing
29 // libjingle PeerConnection.
31 #ifndef TALK_APP_WEBRTC_STATSCOLLECTOR_H_
32 #define TALK_APP_WEBRTC_STATSCOLLECTOR_H_
37 #include "talk/app/webrtc/mediastreaminterface.h"
38 #include "talk/app/webrtc/peerconnectioninterface.h"
39 #include "talk/app/webrtc/statstypes.h"
40 #include "talk/app/webrtc/webrtcsession.h"
42 #include "talk/base/timing.h"
46 class StatsCollector {
50 // Register the session Stats should operate on.
51 // Set to NULL if the session has ended.
52 void set_session(WebRtcSession* session) {
56 // Adds a MediaStream with tracks that can be used as a |selector| in a call
58 void AddStream(MediaStreamInterface* stream);
60 // Gather statistics from the session and store them for future use.
61 void UpdateStats(PeerConnectionInterface::StatsOutputLevel level);
63 // Gets a StatsReports of the last collected stats. Note that UpdateStats must
64 // be called before this function to get the most recent stats. |selector| is
65 // a track label or empty string. The most recent reports are stored in
67 bool GetStats(MediaStreamTrackInterface* track,
68 StatsReports* reports);
70 // Prepare an SSRC report for the given ssrc. Used internally
71 // in the ExtractStatsFromList template.
72 StatsReport* PrepareLocalReport(uint32 ssrc, const std::string& transport);
73 // Prepare an SSRC report for the given remote ssrc. Used internally.
74 StatsReport* PrepareRemoteReport(uint32 ssrc, const std::string& transport);
75 // Extracts the ID of a Transport belonging to an SSRC. Used internally.
76 bool GetTransportIdFromProxy(const std::string& proxy,
77 std::string* transport_id);
80 bool CopySelectedReports(const std::string& selector, StatsReports* reports);
82 // Helper method for AddCertificateReports.
83 std::string AddOneCertificateReport(
84 const talk_base::SSLCertificate* cert, const std::string& issuer_id);
86 // Adds a report for this certificate and every certificate in its chain, and
87 // returns the leaf certificate's report's ID.
88 std::string AddCertificateReports(const talk_base::SSLCertificate* cert);
90 void ExtractSessionInfo();
91 void ExtractVoiceInfo();
92 void ExtractVideoInfo(PeerConnectionInterface::StatsOutputLevel level);
94 void BuildSsrcToTransportId();
95 WebRtcSession* session() { return session_; }
96 webrtc::StatsReport* GetOrCreateReport(const std::string& type,
97 const std::string& id);
99 // A map from the report id to the report.
100 std::map<std::string, StatsReport> reports_;
101 // Raw pointer to the session the statistics are gathered from.
102 WebRtcSession* session_;
103 double stats_gathering_started_;
104 talk_base::Timing timing_;
105 cricket::ProxyTransportMap proxy_to_transport_;
108 } // namespace webrtc
110 #endif // TALK_APP_WEBRTC_STATSCOLLECTOR_H_