RTCMediaStream[Track]Stats added.

webrtc/api/stats/rtcstats_objects.h

 /*
  *  Copyright 2016 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.
  */
 
@@ skipping 165 matching lines @@
 };
 
 class RTCRemoteIceCandidateStats final : public RTCIceCandidateStats {
  public:
   static const char kType[];
   RTCRemoteIceCandidateStats(const std::string& id, int64_t timestamp_us);
   RTCRemoteIceCandidateStats(std::string&& id, int64_t timestamp_us);
   const char* type() const override;
 };
 
+// https://w3c.github.io/webrtc-stats/#msstats-dict*
+// TODO(hbos): Finish implementation. Tracking bug crbug.com/660827
+class RTCMediaStreamStats final : public RTCStats {
+ public:
+  WEBRTC_RTCSTATS_DECL();
+
+  RTCMediaStreamStats(const std::string& id, int64_t timestamp_us);
+  RTCMediaStreamStats(std::string&& id, int64_t timestamp_us);
+  RTCMediaStreamStats(const RTCMediaStreamStats& other);
+  ~RTCMediaStreamStats() override;
+
+  RTCStatsMember<std::string> stream_identifier;
+  RTCStatsMember<std::vector<std::string>> track_ids;
+};
+
+// https://w3c.github.io/webrtc-stats/#mststats-dict*
+// TODO(hbos): Finish implementation. Tracking bug crbug.com/659137
+class RTCMediaStreamTrackStats final : public RTCStats {
+ public:
+  WEBRTC_RTCSTATS_DECL();
+
+  RTCMediaStreamTrackStats(const std::string& id, int64_t timestamp_us);
+  RTCMediaStreamTrackStats(std::string&& id, int64_t timestamp_us);
+  RTCMediaStreamTrackStats(const RTCMediaStreamTrackStats& other);
+  ~RTCMediaStreamTrackStats() override;
+
+  RTCStatsMember<std::string> track_identifier;
+  RTCStatsMember<bool> remote_source;
+  RTCStatsMember<bool> ended;
+  // TODO(hbos): |RTCStatsCollector| does not return stats for detached tracks.
+  // crbug.com/659137
+  RTCStatsMember<bool> detached;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<std::vector<std::string>> ssrc_ids;

[hbos, 2016/11/02 11:44:56]

I don't know how to get the SSRCs for the tracks.

[hta-webrtc, 2016/11/03 14:34:22]

You may have to reverse-map them from the part that goes through all the SSRCs.

+  // Video-only members
+  RTCStatsMember<uint32_t> frame_width;
+  RTCStatsMember<uint32_t> frame_height;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<double> frames_per_second;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> frames_sent;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> frames_received;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> frames_decoded;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> frames_dropped;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> frames_corrupted;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> partial_frames_lost;
+  // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/659137
+  RTCStatsMember<uint32_t> full_frames_lost;
+  // Audio-only members
+  RTCStatsMember<double> audio_level;
+  RTCStatsMember<double> echo_return_loss;
+  RTCStatsMember<double> echo_return_loss_enhancement;
+};
+
 // https://w3c.github.io/webrtc-stats/#pcstats-dict*
 // TODO(hbos): Finish implementation. Tracking bug crbug.com/636818
 class RTCPeerConnectionStats final : public RTCStats {
  public:
   WEBRTC_RTCSTATS_DECL();
 
   RTCPeerConnectionStats(const std::string& id, int64_t timestamp_us);
   RTCPeerConnectionStats(std::string&& id, int64_t timestamp_us);
   RTCPeerConnectionStats(const RTCPeerConnectionStats& other);
   ~RTCPeerConnectionStats() override;
@@ skipping 17 matching lines @@
 
   RTCStatsMember<std::string> ssrc;
   // TODO(hbos): When the remote case is supported |RTCStatsCollector| needs to
   // set this. crbug.com/657855, 657856
   RTCStatsMember<std::string> associate_stats_id;
   // TODO(hbos): Remote case not supported by |RTCStatsCollector|.
   // crbug.com/657855, 657856
   RTCStatsMember<bool> is_remote;  // = false
   RTCStatsMember<std::string> media_type;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657854, 659137
   RTCStatsMember<std::string> media_track_id;

[hbos, 2016/11/02 11:44:56]

How do I know which track's ID to use? A track that has the same SSRC as this
stream? Can multiple tracks have the same SSRCs?

   RTCStatsMember<std::string> transport_id;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657854, 659117
   RTCStatsMember<std::string> codec_id;
   // FIR and PLI counts are only defined for |media_type == "video"|.
   RTCStatsMember<uint32_t> fir_count;
   RTCStatsMember<uint32_t> pli_count;
   // TODO(hbos): NACK count should be collected by |RTCStatsCollector| for both
   // audio and video but is only defined in the "video" case. crbug.com/657856
   RTCStatsMember<uint32_t> nack_count;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657854
@@ skipping 81 matching lines @@
   RTCStatsMember<std::string> rtcp_transport_stats_id;
   RTCStatsMember<bool> active_connection;
   RTCStatsMember<std::string> selected_candidate_pair_id;
   RTCStatsMember<std::string> local_certificate_id;
   RTCStatsMember<std::string> remote_certificate_id;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_STATS_RTCSTATS_OBJECTS_H_