Simulcast, Screen sharing & Various improvements (#4)

* Respect `RTCIceTransportPolicy` enum and organize * Simplify syntax where possible etc. * Combine `VideoPreset` and `VideoPresets` * Default values for `ConnectOptions` * Build URI instead of String manipulation * Slight modifications to Exception * `LiveKitTheme` for example * `VideoEncoding` class * Organize imports * First simulcast implementation * Remove unnecessary try-catches * Update Android settings * Remember uri and token * example improvements * `fit` parameter for VideoTrackRenderer * Simulcast option for example * Pass `defaultPublishOptions` * Show only `VideoQuality` * Pass tests * Better buildUri logic * Named parameter to positional * Explicit imports * `VideoParameter` instead of `VideoPreset` * Use `mediaTrack.getSettings` when possible * Safer dispose logic * Safer `PCTransport` Update transport.dart * Synchronized events for `SignalClient` * Use logger instead of print * Make example compile for iOS * First screen share implementation * Make example work with screen share * Example improvement * Code optimization * Don't depend on web_socket_channel * Fix: Unpublish track bug * Show participant mute state & identity * Update protos * Remote mute/unmute * iOS Background mode * Separate `createCameraTrack` and `createScreenTrack` * Clean up * PB fix * format * Fix analyzer warning * Android clean up * Update README.md * Clean up
2021-09-11 03:14:14 +09:00
parent 8e66e324f6
commit 50f56c5e1e
69 changed files with 2653 additions and 2351 deletions
@@ -0,0 +1,91 @@
+import 'package:collection/collection.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_webrtc/flutter_webrtc.dart';
+import 'package:livekit_client/livekit_client.dart';
+
+import 'no_video.dart';
+import 'participant_info.dart';
+
+class ParticipantWidget extends StatefulWidget {
+  //
+  final Participant participant;
+  final VideoQuality quality;
+
+  const ParticipantWidget(
+    this.participant, {
+    this.quality = VideoQuality.MEDIUM,
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _ParticipantWidgetState();
+}
+
+class _ParticipantWidgetState extends State<ParticipantWidget> with ParticipantDelegate {
+  //
+  TrackPublication? videoPub;
+  TrackPublication? audioPub;
+
+  @override
+  void initState() {
+    super.initState();
+    widget.participant.addListener(_onParticipantChanged);
+    _onParticipantChanged();
+  }
+
+  @override
+  void dispose() {
+    widget.participant.removeListener(_onParticipantChanged);
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(covariant ParticipantWidget oldWidget) {
+    oldWidget.participant.removeListener(_onParticipantChanged);
+    widget.participant.addListener(_onParticipantChanged);
+    _onParticipantChanged();
+    super.didUpdateWidget(oldWidget);
+  }
+
+  // register for change so Flutter will re-build the widget upon change
+  void _onParticipantChanged() {
+    //
+    final firstAudio = widget.participant.audioTracks.firstWhereOrNull((pub) => pub.subscribed);
+    final firstVideo = widget.participant.videoTracks
+        .firstWhereOrNull((pub) => !pub.isScreenShare && pub.subscribed);
+
+    if (firstVideo is RemoteTrackPublication) {
+      firstVideo.videoQuality = widget.quality;
+    }
+
+    setState(() {
+      audioPub = !(firstAudio?.muted ?? true) ? firstAudio : null;
+      videoPub = !(firstVideo?.muted ?? true) ? firstVideo : null;
+    });
+  }
+
+  @override
+  Widget build(BuildContext ctx) => Container(
+        color: Theme.of(ctx).cardColor,
+        child: Stack(
+          children: [
+            // Video
+            if (videoPub != null)
+              VideoTrackRenderer(
+                videoPub!.track as VideoTrack,
+                fit: RTCVideoViewObjectFit.RTCVideoViewObjectFitCover,
+              )
+            else
+              const NoVideoWidget(),
+
+            Align(
+              alignment: Alignment.bottomCenter,
+              child: ParticipantInfoWidget(
+                title: widget.participant.identity,
+                muted: audioPub == null,
+              ),
+            ),
+          ],
+        ),
+      );
+}