1301 lines
43 KiB
Dart
1301 lines
43 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'package:path/path.dart' as p;
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import 'package:path_provider/path_provider.dart';
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import 'package:rxdart/rxdart.dart';
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import 'package:uuid/uuid.dart';
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final _uuid = Uuid();
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/// An object to manage playing audio from a URL, a locale file or an asset.
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///
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/// ```
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/// final player = AudioPlayer();
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/// await player.setUrl('https://foo.com/bar.mp3');
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/// player.play();
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/// await player.pause();
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/// await player.setClip(start: Duration(seconds: 10), end: Duration(seconds: 20));
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/// await player.play();
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/// await player.setUrl('https://foo.com/baz.mp3');
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/// await player.seek(Duration(minutes: 5));
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/// player.play();
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/// await player.pause();
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/// await player.dispose();
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/// ```
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///
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/// You must call [dispose] to release the resources used by this player,
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/// including any temporary files created to cache assets.
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class AudioPlayer {
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static final _mainChannel = MethodChannel('com.ryanheise.just_audio.methods');
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static Future<MethodChannel> _init(String id) async {
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await _mainChannel.invokeMethod('init', [id]);
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return MethodChannel('com.ryanheise.just_audio.methods.$id');
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}
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/// Configure the audio session category on iOS. This method should be called
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/// before playing any audio. It has no effect on Android or Flutter for Web.
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///
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/// Note that the default category on iOS is [IosCategory.soloAmbient], but
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/// for a typical media app, Apple recommends setting this to
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/// [IosCategory.playback]. If you don't call this method, `just_audio` will
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/// respect any prior category that was already set on your app's audio
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/// session and will leave it alone. If it hasn't been previously set, this
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/// will be [IosCategory.soloAmbient]. But if another audio plugin in your
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/// app has configured a particular category, that will also be left alone.
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///
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/// Note: If you use other audio plugins in conjunction with this one, it is
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/// possible that each of those audio plugins may override the setting you
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/// choose here. (You may consider asking the developers of the other plugins
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/// to provide similar configurability so that you have complete control over
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/// setting the overall category that you want for your app.)
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static Future<void> setIosCategory(IosCategory category) async {
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await _mainChannel.invokeMethod('setIosCategory', category.index);
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}
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final Future<MethodChannel> _channel;
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final String _id;
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_ProxyHttpServer _proxy;
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Stream<PlaybackEvent> _eventChannelStream;
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AudioSource _audioSource;
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Map<String, AudioSource> _audioSources = {};
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PlaybackEvent _playbackEvent;
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StreamSubscription<PlaybackEvent> _eventChannelStreamSubscription;
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final _playbackEventSubject = BehaviorSubject<PlaybackEvent>();
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Future<Duration> _durationFuture;
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final _durationSubject = BehaviorSubject<Duration>();
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final _processingStateSubject = BehaviorSubject<ProcessingState>();
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final _playingSubject = BehaviorSubject.seeded(false);
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final _volumeSubject = BehaviorSubject.seeded(1.0);
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final _speedSubject = BehaviorSubject.seeded(1.0);
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final _bufferedPositionSubject = BehaviorSubject<Duration>();
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final _icyMetadataSubject = BehaviorSubject<IcyMetadata>();
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final _playerStateSubject = BehaviorSubject<PlayerState>();
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final _currentIndexSubject = BehaviorSubject<int>();
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final _loopModeSubject = BehaviorSubject<LoopMode>();
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final _shuffleModeEnabledSubject = BehaviorSubject<bool>();
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BehaviorSubject<Duration> _positionSubject;
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bool _automaticallyWaitsToMinimizeStalling = true;
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/// Creates an [AudioPlayer].
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factory AudioPlayer() => AudioPlayer._internal(_uuid.v4());
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AudioPlayer._internal(this._id) : _channel = _init(_id) {
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_playbackEvent = PlaybackEvent(
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processingState: ProcessingState.none,
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updatePosition: Duration.zero,
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updateTime: DateTime.now(),
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bufferedPosition: Duration.zero,
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duration: null,
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icyMetadata: null,
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currentIndex: null,
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);
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_playbackEventSubject.add(_playbackEvent);
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_eventChannelStream = EventChannel('com.ryanheise.just_audio.events.$_id')
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.receiveBroadcastStream()
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.map((data) {
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try {
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//print("received raw event: $data");
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final duration = (data['duration'] ?? -1) < 0
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? null
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: Duration(milliseconds: data['duration']);
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_durationFuture = Future.value(duration);
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if (duration != _playbackEvent.duration) {
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_durationSubject.add(duration);
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}
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_playbackEvent = PlaybackEvent(
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processingState: ProcessingState.values[data['processingState']],
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updatePosition: Duration(milliseconds: data['updatePosition']),
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updateTime: DateTime.fromMillisecondsSinceEpoch(data['updateTime']),
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bufferedPosition: Duration(milliseconds: data['bufferedPosition']),
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duration: duration,
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icyMetadata: data['icyMetadata'] == null
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? null
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: IcyMetadata.fromJson(data['icyMetadata']),
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currentIndex: data['currentIndex'],
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qualityString: data['qualityString']
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);
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//print("created event object with state: ${_playbackEvent.state}");
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return _playbackEvent;
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} catch (e, stacktrace) {
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print("Error parsing event: $e");
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print("$stacktrace");
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rethrow;
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}
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});
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_eventChannelStreamSubscription = _eventChannelStream.listen(
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_playbackEventSubject.add,
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onError: _playbackEventSubject.addError,
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);
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_processingStateSubject.addStream(playbackEventStream
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.map((event) => event.processingState)
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.distinct()
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.handleError((err, stack) {/* noop */}));
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_bufferedPositionSubject.addStream(playbackEventStream
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.map((event) => event.bufferedPosition)
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.distinct()
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.handleError((err, stack) {/* noop */}));
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_icyMetadataSubject.addStream(playbackEventStream
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.map((event) => event.icyMetadata)
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.distinct()
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.handleError((err, stack) {/* noop */}));
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_currentIndexSubject.addStream(playbackEventStream
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.map((event) => event.currentIndex)
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.distinct()
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.handleError((err, stack) {/* noop */}));
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_playerStateSubject.addStream(
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Rx.combineLatest2<bool, PlaybackEvent, PlayerState>(
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playingStream,
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playbackEventStream,
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(playing, event) => PlayerState(playing, event.processingState))
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.distinct()
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.handleError((err, stack) {/* noop */}));
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}
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/// The latest [PlaybackEvent].
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PlaybackEvent get playbackEvent => _playbackEvent;
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/// A stream of [PlaybackEvent]s.
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Stream<PlaybackEvent> get playbackEventStream => _playbackEventSubject.stream;
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/// The duration of the current audio or null if unknown.
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Duration get duration => _playbackEvent.duration;
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/// The duration of the current audio or null if unknown.
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Future<Duration> get durationFuture => _durationFuture;
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/// The duration of the current audio.
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Stream<Duration> get durationStream => _durationSubject.stream;
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/// The current [ProcessingState].
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ProcessingState get processingState => _playbackEvent.processingState;
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/// A stream of [ProcessingState]s.
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Stream<ProcessingState> get processingStateStream =>
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_processingStateSubject.stream;
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/// Whether the player is playing.
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bool get playing => _playingSubject.value;
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/// A stream of changing [playing] states.
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Stream<bool> get playingStream => _playingSubject.stream;
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/// The current volume of the player.
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double get volume => _volumeSubject.value;
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/// A stream of [volume] changes.
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Stream<double> get volumeStream => _volumeSubject.stream;
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/// The current speed of the player.
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double get speed => _speedSubject.value;
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/// A stream of current speed values.
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Stream<double> get speedStream => _speedSubject.stream;
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/// The position up to which buffered audio is available.
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Duration get bufferedPosition => _bufferedPositionSubject.value;
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/// A stream of buffered positions.
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Stream<Duration> get bufferedPositionStream =>
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_bufferedPositionSubject.stream;
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/// The latest ICY metadata received through the audio source.
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IcyMetadata get icyMetadata => _playbackEvent.icyMetadata;
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/// A stream of ICY metadata received through the audio source.
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Stream<IcyMetadata> get icyMetadataStream => _icyMetadataSubject.stream;
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/// The current player state containing only the processing and playing
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/// states.
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PlayerState get playerState => _playerStateSubject.value;
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/// A stream of [PlayerState]s.
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Stream<PlayerState> get playerStateStream => _playerStateSubject.stream;
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/// The index of the current item.
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int get currentIndex => _currentIndexSubject.value;
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/// A stream broadcasting the current item.
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Stream<int> get currentIndexStream => _currentIndexSubject.stream;
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/// Whether there is another item after the current index.
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bool get hasNext =>
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_audioSource != null &&
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currentIndex != null &&
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currentIndex + 1 < _audioSource.sequence.length;
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/// Whether there is another item before the current index.
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bool get hasPrevious =>
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_audioSource != null && currentIndex != null && currentIndex > 0;
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/// The current loop mode.
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LoopMode get loopMode => _loopModeSubject.value;
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/// A stream of [LoopMode]s.
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Stream<LoopMode> get loopModeStream => _loopModeSubject.stream;
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/// Whether shuffle mode is currently enabled.
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bool get shuffleModeEnabled => _shuffleModeEnabledSubject.value;
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/// A stream of the shuffle mode status.
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Stream<bool> get shuffleModeEnabledStream =>
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_shuffleModeEnabledSubject.stream;
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/// Whether the player should automatically delay playback in order to
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/// minimize stalling. (iOS 10.0 or later only)
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bool get automaticallyWaitsToMinimizeStalling =>
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_automaticallyWaitsToMinimizeStalling;
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/// The current position of the player.
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Duration get position {
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if (playing && processingState == ProcessingState.ready) {
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final result = _playbackEvent.updatePosition +
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(DateTime.now().difference(_playbackEvent.updateTime)) * speed;
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return _playbackEvent.duration == null ||
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result <= _playbackEvent.duration
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? result
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: _playbackEvent.duration;
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} else {
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return _playbackEvent.updatePosition;
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}
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}
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/// A stream tracking the current position of this player, suitable for
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/// animating a seek bar. To ensure a smooth animation, this stream emits
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/// values more frequently on short items where the seek bar moves more
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/// quickly, and less frequenly on long items where the seek bar moves more
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/// slowly. The interval between each update will be no quicker than once
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/// every 16ms and no slower than once every 200ms.
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///
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/// See [createPositionStream] for more control over the stream parameters.
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Stream<Duration> get positionStream {
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if (_positionSubject == null) {
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_positionSubject = BehaviorSubject<Duration>();
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_positionSubject.addStream(createPositionStream(
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steps: 800,
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minPeriod: Duration(milliseconds: 16),
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maxPeriod: Duration(milliseconds: 200)));
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}
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return _positionSubject.stream;
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}
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/// Creates a new stream periodically tracking the current position of this
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/// player. The stream will aim to emit [steps] position updates from the
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/// beginning to the end of the current audio source, at intervals of
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/// [duration] / [steps]. This interval will be clipped between [minPeriod]
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/// and [maxPeriod]. This stream will not emit values while audio playback is
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/// paused or stalled.
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///
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/// Note: each time this method is called, a new stream is created. If you
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/// intend to use this stream multiple times, you should hold a reference to
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/// the returned stream and close it once you are done.
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Stream<Duration> createPositionStream({
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int steps = 800,
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Duration minPeriod = const Duration(milliseconds: 200),
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Duration maxPeriod = const Duration(milliseconds: 200),
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}) {
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assert(minPeriod <= maxPeriod);
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assert(minPeriod > Duration.zero);
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Duration duration() => this.duration ?? Duration.zero;
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Duration step() {
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var s = duration() ~/ steps;
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if (s < minPeriod) s = minPeriod;
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if (s > maxPeriod) s = maxPeriod;
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return s;
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}
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StreamController<Duration> controller = StreamController.broadcast();
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Timer currentTimer;
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StreamSubscription durationSubscription;
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StreamSubscription playbackEventSubscription;
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void yieldPosition(Timer timer) {
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if (controller.isClosed) {
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timer.cancel();
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durationSubscription?.cancel();
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playbackEventSubscription?.cancel();
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return;
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}
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if (_durationSubject.isClosed) {
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timer.cancel();
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durationSubscription?.cancel();
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playbackEventSubscription?.cancel();
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controller.close();
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return;
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}
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controller.add(position);
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}
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currentTimer = Timer.periodic(step(), yieldPosition);
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durationSubscription = durationStream.listen((duration) {
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currentTimer.cancel();
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currentTimer = Timer.periodic(step(), yieldPosition);
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});
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playbackEventSubscription = playbackEventStream.listen((event) {
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controller.add(position);
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});
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return controller.stream.distinct();
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}
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/// Convenience method to load audio from a URL with optional headers,
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/// equivalent to:
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///
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/// ```
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/// load(AudioSource.uri(Uri.parse(url), headers: headers));
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/// ```
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///
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///
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Future<Duration> setUrl(String url, {Map headers}) =>
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load(AudioSource.uri(Uri.parse(url), headers: headers));
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/// Convenience method to load audio from a file, equivalent to:
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///
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/// ```
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/// load(AudioSource.uri(Uri.file(filePath)));
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/// ```
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Future<Duration> setFilePath(String filePath) =>
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load(AudioSource.uri(Uri.file(filePath)));
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/// Convenience method to load audio from an asset, equivalent to:
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///
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/// ```
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/// load(AudioSource.uri(Uri.parse('asset://$filePath')));
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/// ```
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Future<Duration> setAsset(String assetPath) =>
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load(AudioSource.uri(Uri.parse('asset://$assetPath')));
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/// Loads audio from an [AudioSource] and completes when the audio is ready
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/// to play with the duration of that audio, or null if the duration is unknown.
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///
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/// This method throws:
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///
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/// * [PlayerException] if the audio source was unable to be loaded.
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/// * [PlayerInterruptedException] if another call to [load] happened before
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/// this call completed.
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Future<Duration> load(AudioSource source) async {
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try {
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_audioSource = source;
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final duration = await _load(source);
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// Wait for loading state to pass.
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await processingStateStream
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.firstWhere((state) => state != ProcessingState.loading);
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return duration;
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} catch (e) {
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_audioSource = null;
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_audioSources.clear();
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rethrow;
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}
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}
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_registerAudioSource(AudioSource source) {
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_audioSources[source._id] = source;
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}
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Future<Duration> _load(AudioSource source) async {
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try {
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if (!kIsWeb && source._requiresHeaders) {
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if (_proxy == null) {
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_proxy = _ProxyHttpServer();
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await _proxy.start();
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}
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}
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await source._setup(this);
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_durationFuture = _invokeMethod('load', [source.toJson()]).then(
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(ms) => (ms == null || ms < 0) ? null : Duration(milliseconds: ms));
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final duration = await _durationFuture;
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_durationSubject.add(duration);
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return duration;
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} on PlatformException catch (e) {
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try {
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throw PlayerException(int.parse(e.code), e.message);
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} on FormatException catch (_) {
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if (e.code == 'abort') {
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throw PlayerInterruptedException(e.message);
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} else {
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throw PlayerException(9999999, e.message);
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}
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}
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}
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}
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/// Clips the current [AudioSource] to the given [start] and [end]
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/// timestamps. If [start] is null, it will be reset to the start of the
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/// original [AudioSource]. If [end] is null, it will be reset to the end of
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/// the original [AudioSource]. This method cannot be called from the
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/// [AudioPlaybackState.none] state.
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Future<Duration> setClip({Duration start, Duration end}) async {
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final duration = await _load(start == null && end == null
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? _audioSource
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: ClippingAudioSource(
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child: _audioSource,
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start: start,
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end: end,
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));
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// Wait for loading state to pass.
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await processingStateStream
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.firstWhere((state) => state != ProcessingState.loading);
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return duration;
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}
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/// Tells the player to play audio as soon as an audio source is loaded and
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/// ready to play. The [Future] returned by this method completes when the
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/// playback completes or is paused or stopped. If the player is already
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/// playing, this method completes immediately.
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///
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/// This method causes [playing] to become true, and it will remain true
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/// until [pause] or [stop] is called. This means that if playback completes,
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/// and then you [seek] to an earlier position in the audio, playback will
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/// continue playing from that position. If you instead wish to [pause] or
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/// [stop] playback on completion, you can call either method as soon as
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/// [processingState] becomes [ProcessingState.completed] by listening to
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/// [processingStateStream].
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Future<void> play() async {
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if (playing) return;
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_playingSubject.add(true);
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await _invokeMethod('play');
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}
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/// Pauses the currently playing media. This method does nothing if
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/// ![playing].
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Future<void> pause() async {
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if (!playing) return;
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// Update local state immediately so that queries aren't surprised.
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_playbackEvent = _playbackEvent.copyWith(
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updatePosition: position,
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updateTime: DateTime.now(),
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);
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_playbackEventSubject.add(_playbackEvent);
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_playingSubject.add(false);
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// TODO: perhaps modify platform side to ensure new state is broadcast
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// before this method returns.
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await _invokeMethod('pause');
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}
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/// Convenience method to pause and seek to zero.
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Future<void> stop() async {
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await pause();
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await seek(Duration.zero);
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}
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/// Sets the volume of this player, where 1.0 is normal volume.
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Future<void> setVolume(final double volume) async {
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_volumeSubject.add(volume);
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await _invokeMethod('setVolume', [volume]);
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}
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/// Sets the playback speed of this player, where 1.0 is normal speed.
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Future<void> setSpeed(final double speed) async {
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_playbackEvent = _playbackEvent.copyWith(
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updatePosition: position,
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updateTime: DateTime.now(),
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);
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_playbackEventSubject.add(_playbackEvent);
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_speedSubject.add(speed);
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await _invokeMethod('setSpeed', [speed]);
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}
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/// Sets the [LoopMode]. The gapless looping support is as follows:
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///
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/// * Android: supported
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/// * iOS/macOS: not supported, however, gapless looping can be achieved by
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/// using [LoopingAudioSource].
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/// * Web: not supported
|
|
Future<void> setLoopMode(LoopMode mode) async {
|
|
_loopModeSubject.add(mode);
|
|
await _invokeMethod('setLoopMode', [mode.index]);
|
|
}
|
|
|
|
/// Sets whether shuffle mode is enabled.
|
|
Future<void> setShuffleModeEnabled(bool enabled) async {
|
|
_shuffleModeEnabledSubject.add(enabled);
|
|
await _invokeMethod('setShuffleModeEnabled', [enabled]);
|
|
}
|
|
|
|
/// Sets automaticallyWaitsToMinimizeStalling for AVPlayer in iOS 10.0 or later, defaults to true.
|
|
/// Has no effect on Android clients
|
|
Future<void> setAutomaticallyWaitsToMinimizeStalling(
|
|
final bool automaticallyWaitsToMinimizeStalling) async {
|
|
_automaticallyWaitsToMinimizeStalling =
|
|
automaticallyWaitsToMinimizeStalling;
|
|
await _invokeMethod('setAutomaticallyWaitsToMinimizeStalling',
|
|
[automaticallyWaitsToMinimizeStalling]);
|
|
}
|
|
|
|
/// Seeks to a particular [position]. If a composition of multiple
|
|
/// [AudioSource]s has been loaded, you may also specify [index] to seek to a
|
|
/// particular item within that sequence. This method has no effect unless
|
|
/// an audio source has been loaded.
|
|
Future<void> seek(final Duration position, {int index}) async {
|
|
switch (processingState) {
|
|
case ProcessingState.none:
|
|
case ProcessingState.loading:
|
|
return;
|
|
default:
|
|
_playbackEvent = _playbackEvent.copyWith(
|
|
updatePosition: position,
|
|
updateTime: DateTime.now(),
|
|
);
|
|
_playbackEventSubject.add(_playbackEvent);
|
|
await _invokeMethod('seek', [position?.inMilliseconds, index]);
|
|
}
|
|
}
|
|
|
|
/// Seek to the next item.
|
|
Future<void> seekToNext() async {
|
|
if (hasNext) {
|
|
await seek(Duration.zero, index: currentIndex + 1);
|
|
}
|
|
}
|
|
|
|
/// Seek to the previous item.
|
|
Future<void> seekToPrevious() async {
|
|
if (hasPrevious) {
|
|
await seek(Duration.zero, index: currentIndex - 1);
|
|
}
|
|
}
|
|
|
|
/// Release all resources associated with this player. You must invoke this
|
|
/// after you are done with the player.
|
|
Future<void> dispose() async {
|
|
await _invokeMethod('dispose');
|
|
_audioSource = null;
|
|
_audioSources.values.forEach((s) => s._dispose());
|
|
_audioSources.clear();
|
|
_proxy?.stop();
|
|
await _durationSubject.close();
|
|
await _eventChannelStreamSubscription.cancel();
|
|
await _loopModeSubject.close();
|
|
await _shuffleModeEnabledSubject.close();
|
|
await _playingSubject.close();
|
|
await _volumeSubject.close();
|
|
await _speedSubject.close();
|
|
if (_positionSubject != null) {
|
|
await _positionSubject.close();
|
|
}
|
|
}
|
|
|
|
Future<dynamic> _invokeMethod(String method, [dynamic args]) async =>
|
|
(await _channel).invokeMethod(method, args);
|
|
}
|
|
|
|
/// Captures the details of any error accessing, loading or playing an audio
|
|
/// source, including an invalid or inaccessible URL, or an audio encoding that
|
|
/// could not be understood.
|
|
class PlayerException {
|
|
/// On iOS and macOS, maps to `NSError.code`. On Android, maps to
|
|
/// `ExoPlaybackException.type`. On Web, maps to `MediaError.code`.
|
|
final int code;
|
|
|
|
/// On iOS and macOS, maps to `NSError.localizedDescription`. On Android,
|
|
/// maps to `ExoPlaybackException.getMessage()`. On Web, a generic message
|
|
/// is provided.
|
|
final String message;
|
|
|
|
PlayerException(this.code, this.message);
|
|
|
|
@override
|
|
String toString() => "($code) $message";
|
|
}
|
|
|
|
/// An error that occurs when one operation on the player has been interrupted
|
|
/// (e.g. by another simultaneous operation).
|
|
class PlayerInterruptedException {
|
|
final String message;
|
|
|
|
PlayerInterruptedException(this.message);
|
|
|
|
@override
|
|
String toString() => "$message";
|
|
}
|
|
|
|
/// Encapsulates the playback state and current position of the player.
|
|
class PlaybackEvent {
|
|
/// The current processing state.
|
|
final ProcessingState processingState;
|
|
|
|
/// When the last time a position discontinuity happened, as measured in time
|
|
/// since the epoch.
|
|
final DateTime updateTime;
|
|
|
|
/// The position at [updateTime].
|
|
final Duration updatePosition;
|
|
|
|
/// The buffer position.
|
|
final Duration bufferedPosition;
|
|
|
|
/// The media duration, or null if unknown.
|
|
final Duration duration;
|
|
|
|
/// The latest ICY metadata received through the audio stream.
|
|
final IcyMetadata icyMetadata;
|
|
|
|
/// The index of the currently playing item.
|
|
final int currentIndex;
|
|
|
|
/// Quality info of current track
|
|
final String qualityString;
|
|
|
|
PlaybackEvent({
|
|
@required this.processingState,
|
|
@required this.updateTime,
|
|
@required this.updatePosition,
|
|
@required this.bufferedPosition,
|
|
@required this.duration,
|
|
@required this.icyMetadata,
|
|
@required this.currentIndex,
|
|
this.qualityString
|
|
});
|
|
|
|
PlaybackEvent copyWith({
|
|
ProcessingState processingState,
|
|
DateTime updateTime,
|
|
Duration updatePosition,
|
|
Duration bufferedPosition,
|
|
double speed,
|
|
Duration duration,
|
|
IcyMetadata icyMetadata,
|
|
UriAudioSource currentIndex,
|
|
String qualityString
|
|
}) =>
|
|
PlaybackEvent(
|
|
processingState: processingState ?? this.processingState,
|
|
updateTime: updateTime ?? this.updateTime,
|
|
updatePosition: updatePosition ?? this.updatePosition,
|
|
bufferedPosition: bufferedPosition ?? this.bufferedPosition,
|
|
duration: duration ?? this.duration,
|
|
icyMetadata: icyMetadata ?? this.icyMetadata,
|
|
currentIndex: currentIndex ?? this.currentIndex,
|
|
qualityString: qualityString ?? this.qualityString
|
|
);
|
|
|
|
@override
|
|
String toString() =>
|
|
"{processingState=$processingState, updateTime=$updateTime, updatePosition=$updatePosition}";
|
|
}
|
|
|
|
/// Enumerates the different processing states of a player.
|
|
enum ProcessingState {
|
|
/// The player has not loaded an [AudioSource].
|
|
none,
|
|
|
|
/// The player is loading an [AudioSource].
|
|
loading,
|
|
|
|
/// The player is buffering audio and unable to play.
|
|
buffering,
|
|
|
|
/// The player is has enough audio buffered and is able to play.
|
|
ready,
|
|
|
|
/// The player has reached the end of the audio.
|
|
completed,
|
|
}
|
|
|
|
/// Encapsulates the playing and processing states. These two states vary
|
|
/// orthogonally, and so if [processingState] is [ProcessingState.buffering],
|
|
/// you can check [playing] to determine whether the buffering occurred while
|
|
/// the player was playing or while the player was paused.
|
|
class PlayerState {
|
|
/// Whether the player will play when [processingState] is
|
|
/// [ProcessingState.ready].
|
|
final bool playing;
|
|
|
|
/// The current processing state of the player.
|
|
final ProcessingState processingState;
|
|
|
|
PlayerState(this.playing, this.processingState);
|
|
|
|
@override
|
|
String toString() => 'playing=$playing,processingState=$processingState';
|
|
|
|
@override
|
|
int get hashCode => toString().hashCode;
|
|
|
|
@override
|
|
bool operator ==(dynamic other) =>
|
|
other is PlayerState &&
|
|
other?.playing == playing &&
|
|
other?.processingState == processingState;
|
|
}
|
|
|
|
class IcyInfo {
|
|
final String title;
|
|
final String url;
|
|
|
|
IcyInfo({@required this.title, @required this.url});
|
|
|
|
IcyInfo.fromJson(Map json) : this(title: json['title'], url: json['url']);
|
|
|
|
@override
|
|
String toString() => 'title=$title,url=$url';
|
|
|
|
@override
|
|
int get hashCode => toString().hashCode;
|
|
|
|
@override
|
|
bool operator ==(dynamic other) =>
|
|
other is IcyInfo && other?.toString() == toString();
|
|
}
|
|
|
|
class IcyHeaders {
|
|
final int bitrate;
|
|
final String genre;
|
|
final String name;
|
|
final int metadataInterval;
|
|
final String url;
|
|
final bool isPublic;
|
|
|
|
IcyHeaders({
|
|
@required this.bitrate,
|
|
@required this.genre,
|
|
@required this.name,
|
|
@required this.metadataInterval,
|
|
@required this.url,
|
|
@required this.isPublic,
|
|
});
|
|
|
|
IcyHeaders.fromJson(Map json)
|
|
: this(
|
|
bitrate: json['bitrate'],
|
|
genre: json['genre'],
|
|
name: json['name'],
|
|
metadataInterval: json['metadataInterval'],
|
|
url: json['url'],
|
|
isPublic: json['isPublic'],
|
|
);
|
|
|
|
@override
|
|
String toString() =>
|
|
'bitrate=$bitrate,genre=$genre,name=$name,metadataInterval=$metadataInterval,url=$url,isPublic=$isPublic';
|
|
|
|
@override
|
|
int get hashCode => toString().hashCode;
|
|
|
|
@override
|
|
bool operator ==(dynamic other) =>
|
|
other is IcyHeaders && other?.toString() == toString();
|
|
}
|
|
|
|
class IcyMetadata {
|
|
final IcyInfo info;
|
|
final IcyHeaders headers;
|
|
|
|
IcyMetadata({@required this.info, @required this.headers});
|
|
|
|
IcyMetadata.fromJson(Map json)
|
|
: this(info: json['info'], headers: json['headers']);
|
|
|
|
@override
|
|
int get hashCode => info.hashCode ^ headers.hashCode;
|
|
|
|
@override
|
|
bool operator ==(dynamic other) =>
|
|
other is IcyMetadata && other?.info == info && other?.headers == headers;
|
|
}
|
|
|
|
/// The audio session categories on iOS, to be used with
|
|
/// [AudioPlayer.setIosCategory].
|
|
enum IosCategory {
|
|
ambient,
|
|
soloAmbient,
|
|
playback,
|
|
record,
|
|
playAndRecord,
|
|
multiRoute,
|
|
}
|
|
|
|
/// A local proxy HTTP server for making remote GET requests with headers.
|
|
///
|
|
/// TODO: Recursively attach headers to items in playlists like m3u8.
|
|
class _ProxyHttpServer {
|
|
HttpServer _server;
|
|
|
|
/// Maps request keys to [_ProxyRequest]s.
|
|
final Map<String, _ProxyRequest> _uriMap = {};
|
|
|
|
/// The port this server is bound to on localhost. This is set only after
|
|
/// [start] has completed.
|
|
int get port => _server.port;
|
|
|
|
/// Associate headers with a URL. This may be called only after [start] has
|
|
/// completed.
|
|
Uri addUrl(Uri url, Map<String, String> headers) {
|
|
final path = _requestKey(url);
|
|
_uriMap[path] = _ProxyRequest(url, headers);
|
|
return url.replace(
|
|
scheme: 'http',
|
|
host: InternetAddress.loopbackIPv4.address,
|
|
port: port,
|
|
);
|
|
}
|
|
|
|
/// A unique key for each request that can be processed by this proxy,
|
|
/// made up of the URL path and query string. It is not possible to
|
|
/// simultaneously track requests that have the same URL path and query
|
|
/// but differ in other respects such as the port or headers.
|
|
String _requestKey(Uri uri) => '${uri.path}?${uri.query}';
|
|
|
|
/// Starts the server.
|
|
Future start() async {
|
|
_server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0);
|
|
_server.listen((request) async {
|
|
if (request.method == 'GET') {
|
|
final path = _requestKey(request.uri);
|
|
final proxyRequest = _uriMap[path];
|
|
final originRequest = await HttpClient().getUrl(proxyRequest.uri);
|
|
|
|
// Rewrite request headers
|
|
final host = originRequest.headers.value('host');
|
|
originRequest.headers.clear();
|
|
request.headers.forEach((name, value) {
|
|
originRequest.headers.set(name, value);
|
|
});
|
|
for (var name in proxyRequest.headers.keys) {
|
|
originRequest.headers.set(name, proxyRequest.headers[name]);
|
|
}
|
|
originRequest.headers.set('host', host);
|
|
|
|
// Try to make normal request
|
|
try {
|
|
final originResponse = await originRequest.close();
|
|
|
|
request.response.headers.clear();
|
|
originResponse.headers.forEach((name, value) {
|
|
request.response.headers.set(name, value);
|
|
});
|
|
|
|
// Pipe response
|
|
await originResponse.pipe(request.response);
|
|
} on HttpException {
|
|
// We likely are dealing with a streaming protocol
|
|
if (proxyRequest.uri.scheme == 'http') {
|
|
// Try parsing HTTP 0.9 response
|
|
//request.response.headers.clear();
|
|
final socket = await Socket.connect(
|
|
proxyRequest.uri.host, proxyRequest.uri.port);
|
|
final clientSocket =
|
|
await request.response.detachSocket(writeHeaders: false);
|
|
Completer done = Completer();
|
|
socket.listen(
|
|
clientSocket.add,
|
|
onDone: () async {
|
|
await clientSocket.flush();
|
|
socket.close();
|
|
clientSocket.close();
|
|
done.complete();
|
|
},
|
|
);
|
|
// Rewrite headers
|
|
final headers = <String, String>{};
|
|
request.headers.forEach((name, value) {
|
|
if (name.toLowerCase() != 'host') {
|
|
headers[name] = value.join(",");
|
|
}
|
|
});
|
|
for (var name in proxyRequest.headers.keys) {
|
|
headers[name] = proxyRequest.headers[name];
|
|
}
|
|
socket.write("GET ${proxyRequest.uri.path} HTTP/1.1\n");
|
|
if (host != null) {
|
|
socket.write("Host: $host\n");
|
|
}
|
|
for (var name in headers.keys) {
|
|
socket.write("$name: ${headers[name]}\n");
|
|
}
|
|
socket.write("\n");
|
|
await socket.flush();
|
|
await done.future;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/// Stops the server
|
|
Future stop() => _server.close();
|
|
}
|
|
|
|
/// A request for a URL and headers made by a [_ProxyHttpServer].
|
|
class _ProxyRequest {
|
|
final Uri uri;
|
|
final Map<String, String> headers;
|
|
|
|
_ProxyRequest(this.uri, this.headers);
|
|
}
|
|
|
|
/// Specifies a source of audio to be played. Audio sources are composable
|
|
/// using the subclasses of this class. The same [AudioSource] instance should
|
|
/// not be used simultaneously by more than one [AudioPlayer].
|
|
abstract class AudioSource {
|
|
final String _id;
|
|
AudioPlayer _player;
|
|
|
|
/// Creates an [AudioSource] from a [Uri] with optional headers by
|
|
/// attempting to guess the type of stream. On iOS, this uses Apple's SDK to
|
|
/// automatically detect the stream type. On Android, the type of stream will
|
|
/// be guessed from the extension.
|
|
///
|
|
/// If you are loading DASH or HLS streams that do not have standard "mpd" or
|
|
/// "m3u8" extensions in their URIs, this method will fail to detect the
|
|
/// stream type on Android. If you know in advance what type of audio stream
|
|
/// it is, you should instantiate [DashAudioSource] or [HlsAudioSource]
|
|
/// directly.
|
|
static AudioSource uri(Uri uri, {Map headers, Object tag}) {
|
|
bool hasExtension(Uri uri, String extension) =>
|
|
uri.path.toLowerCase().endsWith('.$extension') ||
|
|
uri.fragment.toLowerCase().endsWith('.$extension');
|
|
if (hasExtension(uri, 'mpd')) {
|
|
return DashAudioSource(uri, headers: headers, tag: tag);
|
|
} else if (hasExtension(uri, 'm3u8')) {
|
|
return HlsAudioSource(uri, headers: headers, tag: tag);
|
|
} else {
|
|
return ProgressiveAudioSource(uri, headers: headers, tag: tag);
|
|
}
|
|
}
|
|
|
|
static AudioSource fromJson(Map json) {
|
|
switch (json['type']) {
|
|
case 'progressive':
|
|
return ProgressiveAudioSource(Uri.parse(json['uri']),
|
|
headers: json['headers']);
|
|
case "dash":
|
|
return DashAudioSource(Uri.parse(json['uri']),
|
|
headers: json['headers']);
|
|
case "hls":
|
|
return HlsAudioSource(Uri.parse(json['uri']), headers: json['headers']);
|
|
case "concatenating":
|
|
return ConcatenatingAudioSource(
|
|
children: (json['audioSources'] as List)
|
|
.map((s) => AudioSource.fromJson(s))
|
|
.toList());
|
|
case "clipping":
|
|
return ClippingAudioSource(
|
|
child: AudioSource.fromJson(json['audioSource']),
|
|
start: Duration(milliseconds: json['start']),
|
|
end: Duration(milliseconds: json['end']));
|
|
default:
|
|
throw Exception("Unknown AudioSource type: " + json['type']);
|
|
}
|
|
}
|
|
|
|
AudioSource() : _id = _uuid.v4();
|
|
|
|
@mustCallSuper
|
|
Future<void> _setup(AudioPlayer player) async {
|
|
_player = player;
|
|
player._registerAudioSource(this);
|
|
}
|
|
|
|
@mustCallSuper
|
|
void _dispose() {
|
|
_player = null;
|
|
}
|
|
|
|
bool get _requiresHeaders;
|
|
|
|
List<IndexedAudioSource> get sequence;
|
|
|
|
Map toJson();
|
|
|
|
@override
|
|
int get hashCode => _id.hashCode;
|
|
|
|
@override
|
|
bool operator ==(dynamic other) => other is AudioSource && other._id == _id;
|
|
}
|
|
|
|
/// An [AudioSource] that can appear in a sequence.
|
|
abstract class IndexedAudioSource extends AudioSource {
|
|
final Object tag;
|
|
|
|
IndexedAudioSource(this.tag);
|
|
|
|
@override
|
|
List<IndexedAudioSource> get sequence => [this];
|
|
}
|
|
|
|
/// An abstract class representing audio sources that are loaded from a URI.
|
|
abstract class UriAudioSource extends IndexedAudioSource {
|
|
final Uri uri;
|
|
final Map headers;
|
|
final String _type;
|
|
Uri _overrideUri;
|
|
File _cacheFile;
|
|
|
|
UriAudioSource(this.uri, {this.headers, Object tag, @required String type})
|
|
: _type = type,
|
|
super(tag);
|
|
|
|
@override
|
|
Future<void> _setup(AudioPlayer player) async {
|
|
await super._setup(player);
|
|
if (uri.scheme == 'asset') {
|
|
_overrideUri = Uri.file((await _loadAsset(uri.path)).path);
|
|
} else if (headers != null) {
|
|
_overrideUri = player._proxy.addUrl(uri, headers);
|
|
}
|
|
}
|
|
|
|
@override
|
|
void _dispose() {
|
|
if (_cacheFile?.existsSync() == true) {
|
|
_cacheFile?.deleteSync();
|
|
}
|
|
super._dispose();
|
|
}
|
|
|
|
Future<File> _loadAsset(String assetPath) async {
|
|
final file = await _getCacheFile(assetPath);
|
|
this._cacheFile = file;
|
|
if (!file.existsSync()) {
|
|
await file.create(recursive: true);
|
|
await file.writeAsBytes(
|
|
(await rootBundle.load(assetPath)).buffer.asUint8List());
|
|
}
|
|
return file;
|
|
}
|
|
|
|
/// Get file for caching asset media with proper extension
|
|
Future<File> _getCacheFile(final String assetPath) async => File(p.join(
|
|
(await getTemporaryDirectory()).path,
|
|
'just_audio_asset_cache',
|
|
'${_player._id}_$_id${p.extension(assetPath)}'));
|
|
|
|
@override
|
|
bool get _requiresHeaders => headers != null;
|
|
|
|
@override
|
|
Map toJson() => {
|
|
'id': _id,
|
|
'type': _type,
|
|
'uri': (_overrideUri ?? uri).toString(),
|
|
'headers': headers,
|
|
};
|
|
}
|
|
|
|
/// An [AudioSource] representing a regular media file such asn an MP3 or M4A
|
|
/// file. The following URI schemes are supported:
|
|
///
|
|
/// * file: loads from a local file (provided you give your app permission to
|
|
/// access that file).
|
|
/// * asset: loads from a Flutter asset (not supported on Web).
|
|
/// * http(s): loads from an HTTP(S) resource.
|
|
///
|
|
/// On platforms except for the web, the supplied [headers] will be passed with
|
|
/// the HTTP(S) request.
|
|
class ProgressiveAudioSource extends UriAudioSource {
|
|
ProgressiveAudioSource(Uri uri, {Map headers, Object tag})
|
|
: super(uri, headers: headers, tag: tag, type: 'progressive');
|
|
}
|
|
|
|
/// An [AudioSource] representing a DASH stream.
|
|
///
|
|
/// On platforms except for the web, the supplied [headers] will be passed with
|
|
/// the HTTP(S) request. Currently headers are not recursively applied to items
|
|
/// the HTTP(S) request. Currently headers are not applied recursively.
|
|
class DashAudioSource extends UriAudioSource {
|
|
DashAudioSource(Uri uri, {Map headers, Object tag})
|
|
: super(uri, headers: headers, tag: tag, type: 'dash');
|
|
}
|
|
|
|
/// An [AudioSource] representing an HLS stream.
|
|
///
|
|
/// On platforms except for the web, the supplied [headers] will be passed with
|
|
/// the HTTP(S) request. Currently headers are not applied recursively.
|
|
class HlsAudioSource extends UriAudioSource {
|
|
HlsAudioSource(Uri uri, {Map headers, Object tag})
|
|
: super(uri, headers: headers, tag: tag, type: 'hls');
|
|
}
|
|
|
|
/// An [AudioSource] representing a concatenation of multiple audio sources to
|
|
/// be played in succession. This can be used to create playlists. Playback
|
|
/// between items will be gapless on Android, iOS and macOS, while there will
|
|
/// be a slight gap on Web.
|
|
///
|
|
/// (Untested) Audio sources can be dynamically added, removed and reordered
|
|
/// while the audio is playing.
|
|
class ConcatenatingAudioSource extends AudioSource {
|
|
final List<AudioSource> children;
|
|
final bool useLazyPreparation;
|
|
|
|
ConcatenatingAudioSource({
|
|
@required this.children,
|
|
this.useLazyPreparation = false,
|
|
});
|
|
|
|
@override
|
|
Future<void> _setup(AudioPlayer player) async {
|
|
await super._setup(player);
|
|
for (var source in children) {
|
|
await source._setup(player);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Appends an [AudioSource].
|
|
Future<void> add(AudioSource audioSource) async {
|
|
children.add(audioSource);
|
|
if (_player != null) {
|
|
await _player
|
|
._invokeMethod('concatenating.add', [_id, audioSource.toJson()]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Inserts an [AudioSource] at [index].
|
|
Future<void> insert(int index, AudioSource audioSource) async {
|
|
children.insert(index, audioSource);
|
|
if (_player != null) {
|
|
await _player._invokeMethod(
|
|
'concatenating.insert', [_id, index, audioSource.toJson()]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Appends multiple [AudioSource]s.
|
|
Future<void> addAll(List<AudioSource> children) async {
|
|
this.children.addAll(children);
|
|
if (_player != null) {
|
|
await _player._invokeMethod('concatenating.addAll',
|
|
[_id, children.map((s) => s.toJson()).toList()]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Insert multiple [AudioSource]s at [index].
|
|
Future<void> insertAll(int index, List<AudioSource> children) async {
|
|
this.children.insertAll(index, children);
|
|
if (_player != null) {
|
|
await _player._invokeMethod('concatenating.insertAll',
|
|
[_id, index, children.map((s) => s.toJson()).toList()]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Dynmaically remove an [AudioSource] at [index] after this
|
|
/// [ConcatenatingAudioSource] has already been loaded.
|
|
Future<void> removeAt(int index) async {
|
|
children.removeAt(index);
|
|
if (_player != null) {
|
|
await _player._invokeMethod('concatenating.removeAt', [_id, index]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Removes a range of [AudioSource]s from index [start] inclusive
|
|
/// to [end] exclusive.
|
|
Future<void> removeRange(int start, int end) async {
|
|
children.removeRange(start, end);
|
|
if (_player != null) {
|
|
await _player
|
|
._invokeMethod('concatenating.removeRange', [_id, start, end]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Moves an [AudioSource] from [currentIndex] to [newIndex].
|
|
Future<void> move(int currentIndex, int newIndex) async {
|
|
children.insert(newIndex, children.removeAt(currentIndex));
|
|
if (_player != null) {
|
|
await _player
|
|
._invokeMethod('concatenating.move', [_id, currentIndex, newIndex]);
|
|
}
|
|
}
|
|
|
|
/// (Untested) Removes all [AudioSources].
|
|
Future<void> clear() async {
|
|
children.clear();
|
|
if (_player != null) {
|
|
await _player._invokeMethod('concatenating.clear', [_id]);
|
|
}
|
|
}
|
|
|
|
/// The number of [AudioSource]s.
|
|
int get length => children.length;
|
|
|
|
operator [](int index) => children[index];
|
|
|
|
@override
|
|
List<IndexedAudioSource> get sequence =>
|
|
children.expand((s) => s.sequence).toList();
|
|
|
|
@override
|
|
bool get _requiresHeaders =>
|
|
children.any((source) => source._requiresHeaders);
|
|
|
|
@override
|
|
Map toJson() => {
|
|
'id': _id,
|
|
'type': 'concatenating',
|
|
'audioSources': children.map((source) => source.toJson()).toList(),
|
|
'useLazyPreparation': useLazyPreparation,
|
|
};
|
|
}
|
|
|
|
/// An [AudioSource] that clips the audio of a [UriAudioSource] between a
|
|
/// certain start and end time.
|
|
class ClippingAudioSource extends IndexedAudioSource {
|
|
final UriAudioSource child;
|
|
final Duration start;
|
|
final Duration end;
|
|
|
|
/// Creates an audio source that clips [child] to the range [start]..[end],
|
|
/// where [start] and [end] default to the beginning and end of the original
|
|
/// [child] source.
|
|
ClippingAudioSource({
|
|
@required this.child,
|
|
this.start,
|
|
this.end,
|
|
Object tag,
|
|
}) : super(tag);
|
|
|
|
@override
|
|
Future<void> _setup(AudioPlayer player) async {
|
|
await super._setup(player);
|
|
await child._setup(player);
|
|
}
|
|
|
|
@override
|
|
bool get _requiresHeaders => child._requiresHeaders;
|
|
|
|
@override
|
|
Map toJson() => {
|
|
'id': _id,
|
|
'type': 'clipping',
|
|
'audioSource': child.toJson(),
|
|
'start': start?.inMilliseconds,
|
|
'end': end?.inMilliseconds,
|
|
};
|
|
}
|
|
|
|
// An [AudioSource] that loops a nested [AudioSource] a finite number of times.
|
|
// NOTE: this can be inefficient when using a large loop count. If you wish to
|
|
// loop an infinite number of times, use [AudioPlayer.setLoopMode].
|
|
//
|
|
// On iOS and macOS, note that [LoopingAudioSource] will provide gapless
|
|
// playback while [AudioPlayer.setLoopMode] will not. (This will be supported
|
|
// in a future release.)
|
|
class LoopingAudioSource extends AudioSource {
|
|
AudioSource child;
|
|
final int count;
|
|
|
|
LoopingAudioSource({
|
|
@required this.child,
|
|
this.count,
|
|
}) : super();
|
|
|
|
@override
|
|
List<IndexedAudioSource> get sequence =>
|
|
List.generate(count, (i) => child).expand((s) => s.sequence).toList();
|
|
|
|
@override
|
|
bool get _requiresHeaders => child._requiresHeaders;
|
|
|
|
@override
|
|
Map toJson() => {
|
|
'id': _id,
|
|
'type': 'looping',
|
|
'audioSource': child.toJson(),
|
|
'count': count,
|
|
};
|
|
}
|
|
|
|
enum LoopMode { off, one, all }
|