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feat: Stats monitor for Track. (#290)
* feat: Stats monitor for Track. * fix analyze. * fix. * import sorter. * add monitor layer for example. * update. * update. * fix import sorter. * update. * import sorter. * fix typo for filename. * revert changes for VideoPublishOptions.videoCodec. * chore: improve code. * update.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:livekit_client/livekit_client.dart'; | ||
|
|
||
| enum StatsType { | ||
| kUnknown, | ||
| kLocalAudioSender, | ||
| kLocalVideoSender, | ||
| kRemoteAudioReceiver, | ||
| kRemoteVideoReceiver, | ||
| } | ||
|
|
||
| class ParticipantStatsWidget extends StatefulWidget { | ||
| const ParticipantStatsWidget({Key? key, required this.participant}) | ||
| : super(key: key); | ||
| final Participant participant; | ||
| @override | ||
| State<StatefulWidget> createState() => _ParticipantStatsWidgetState(); | ||
| } | ||
|
|
||
| class _ParticipantStatsWidgetState extends State<ParticipantStatsWidget> { | ||
| List<EventsListener<TrackEvent>> listeners = []; | ||
| StatsType statsType = StatsType.kUnknown; | ||
| Map<String, String> stats = {}; | ||
|
|
||
| void _setUpListener(Track track) { | ||
| var listener = track.createListener(); | ||
| listeners.add(listener); | ||
| if (track is LocalVideoTrack) { | ||
| statsType = StatsType.kLocalVideoSender; | ||
| listener.on<VideoSenderStatsEvent>((event) { | ||
| setState(() { | ||
| stats['video tx'] = 'total sent ${event.currentBitrate.toInt()} kpbs'; | ||
| event.stats.forEach((key, value) { | ||
| stats['layer-$key'] = | ||
| '${value.frameWidth ?? 0}x${value.frameHeight ?? 0} ${value.framesPerSecond?.toDouble() ?? 0} fps, ${event.bitrateForLayers[key] ?? 0} kbps'; | ||
| }); | ||
| var firstStats = | ||
| event.stats['f'] ?? event.stats['h'] ?? event.stats['q']; | ||
| if (firstStats != null) { | ||
| stats['encoder'] = firstStats.encoderImplementation ?? ''; | ||
| stats['video codec'] = | ||
| '${firstStats.mimeType}, ${firstStats.clockRate}hz, pt: ${firstStats.payloadType}'; | ||
| stats['qualityLimitationReason'] = | ||
| firstStats.qualityLimitationReason ?? ''; | ||
| } | ||
| }); | ||
| }); | ||
| } else if (track is RemoteVideoTrack) { | ||
| statsType = StatsType.kRemoteVideoReceiver; | ||
| listener.on<VideoReceiverStatsEvent>((event) { | ||
| setState(() { | ||
| stats['video rx'] = '${event.currentBitrate.toInt()} kpbs'; | ||
| stats['video codec'] = | ||
| '${event.stats.mimeType}, ${event.stats.clockRate}hz, pt: ${event.stats.payloadType}'; | ||
| stats['video size'] = | ||
| '${event.stats.frameWidth}x${event.stats.frameHeight} ${event.stats.framesPerSecond?.toDouble()}fps'; | ||
| stats['video jitter'] = '${event.stats.jitter} s'; | ||
| stats['video decoder'] = '${event.stats.decoderImplementation}'; | ||
| //stats['video packets lost'] = '${event.stats.packetsLost}'; | ||
| //stats['video packets received'] = '${event.stats.packetsReceived}'; | ||
| stats['video frames received'] = '${event.stats.framesReceived}'; | ||
| stats['video frames decoded'] = '${event.stats.framesDecoded}'; | ||
| stats['video frames dropped'] = '${event.stats.framesDropped}'; | ||
| }); | ||
| }); | ||
| } else if (track is LocalAudioTrack) { | ||
| statsType = StatsType.kLocalAudioSender; | ||
| listener.on<AudioSenderStatsEvent>((event) { | ||
| setState(() { | ||
| stats['audio tx'] = '${event.currentBitrate.toInt()} kpbs'; | ||
| stats['audio codec'] = | ||
| '${event.stats.mimeType}, ${event.stats.clockRate}hz, ${event.stats.channels}ch, pt: ${event.stats.payloadType}'; | ||
| }); | ||
| }); | ||
| } else if (track is RemoteAudioTrack) { | ||
| statsType = StatsType.kRemoteAudioReceiver; | ||
| listener.on<AudioReceiverStatsEvent>((event) { | ||
| setState(() { | ||
| stats['audio rx'] = '${event.currentBitrate.toInt()} kpbs'; | ||
| stats['audio codec'] = | ||
| '${event.stats.mimeType}, ${event.stats.clockRate}hz, ${event.stats.channels}ch, pt: ${event.stats.payloadType}'; | ||
| stats['audio jitter'] = '${event.stats.jitter} s'; | ||
| //stats['audio concealed samples'] = | ||
| // '${event.stats.concealedSamples} / ${event.stats.concealmentEvents}'; | ||
| stats['audio packets lost'] = '${event.stats.packetsLost}'; | ||
| stats['audio packets received'] = '${event.stats.packetsReceived}'; | ||
| }); | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| _onParticipantChanged() { | ||
| for (var element in listeners) { | ||
| element.dispose(); | ||
| } | ||
| listeners.clear(); | ||
| for (var track in [ | ||
| ...widget.participant.videoTracks, | ||
| ...widget.participant.audioTracks | ||
| ]) { | ||
| if (track.track != null) { | ||
| _setUpListener(track.track!); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @override | ||
| void initState() { | ||
| super.initState(); | ||
| widget.participant.addListener(_onParticipantChanged); | ||
| // trigger initial change | ||
| _onParticipantChanged(); | ||
| } | ||
|
|
||
| @override | ||
| void deactivate() { | ||
| for (var element in listeners) { | ||
| element.dispose(); | ||
| } | ||
| widget.participant.removeListener(_onParticipantChanged); | ||
| super.deactivate(); | ||
| } | ||
|
|
||
| num sendBitrate = 0; | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Container( | ||
| color: Colors.black.withOpacity(0.3), | ||
| padding: const EdgeInsets.symmetric( | ||
| vertical: 8, | ||
| horizontal: 8, | ||
| ), | ||
| child: Column( | ||
| children: | ||
| stats.entries.map((e) => Text('${e.key}: ${e.value}')).toList()), | ||
| ); | ||
| } | ||
| } |
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