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Improve player seek

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This commit is contained in:
Florian Renaud 2022-11-04 11:35:50 +01:00
parent 6d850b3030
commit d89ef6988b
7 changed files with 157 additions and 131 deletions
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7
vector/src/main/java/im/vector/app/features/home/room/detail/timeline/item/MessageVoiceBroadcastListeningItem.kt
View file

@ -71,18 +71,14 @@ abstract class MessageVoiceBroadcastListeningItem : AbsMessageVoiceBroadcastItem
playPauseButton.setImageResource(R.drawable.ic_play_pause_pause)
playPauseButton.contentDescription = view.resources.getString(R.string.a11y_pause_voice_broadcast)
playPauseButton.onClick { callback?.onTimelineItemAction(VoiceBroadcastAction.Listening.Pause) }
seekBar.isEnabled = true
}
VoiceBroadcastPlayer.State.IDLE,
VoiceBroadcastPlayer.State.PAUSED -> {
playPauseButton.setImageResource(R.drawable.ic_play_pause_play)
playPauseButton.contentDescription = view.resources.getString(R.string.a11y_play_voice_broadcast)
playPauseButton.onClick { callback?.onTimelineItemAction(VoiceBroadcastAction.Listening.PlayOrResume(voiceBroadcast)) }
seekBar.isEnabled = false
}
VoiceBroadcastPlayer.State.BUFFERING -> {
seekBar.isEnabled = true
}
VoiceBroadcastPlayer.State.BUFFERING -> Unit
}
}
}
@ -112,6 +108,7 @@ abstract class MessageVoiceBroadcastListeningItem : AbsMessageVoiceBroadcastItem
}
is AudioMessagePlaybackTracker.Listener.State.Playing -> {
if (!isUserSeeking) {
// Timber.d("Voice Broadcast | AudioMessagePlaybackTracker.Listener.onUpdate - duration: $duration, playbackTime: ${state.playbackTime}")
holder.seekBar.progress = state.playbackTime
}
}

5
vector/src/main/java/im/vector/app/features/voicebroadcast/VoiceBroadcastExtensions.kt
View file

@ -17,6 +17,8 @@
package im.vector.app.features.voicebroadcast
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastChunk
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastEvent
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastState
import org.matrix.android.sdk.api.session.events.model.Content
import org.matrix.android.sdk.api.session.events.model.getRelationContent
import org.matrix.android.sdk.api.session.events.model.toModel
@ -34,3 +36,6 @@ fun MessageAudioEvent.getVoiceBroadcastChunk(): VoiceBroadcastChunk? {
val MessageAudioEvent.sequence: Int? get() = getVoiceBroadcastChunk()?.sequence
val MessageAudioEvent.duration get() = content.audioInfo?.duration ?: content.audioWaveformInfo?.duration ?: 0
val VoiceBroadcastEvent.isLive
get() = content?.voiceBroadcastState != null && content?.voiceBroadcastState != VoiceBroadcastState.STOPPED

4
vector/src/main/java/im/vector/app/features/voicebroadcast/VoiceBroadcastHelper.kt
View file

@ -49,8 +49,6 @@ class VoiceBroadcastHelper @Inject constructor(
fun stopPlayback() = voiceBroadcastPlayer.stop()
fun seekTo(voiceBroadcast: VoiceBroadcast, positionMillis: Int) {
if (voiceBroadcastPlayer.currentVoiceBroadcast == voiceBroadcast) {
voiceBroadcastPlayer.seekTo(positionMillis)
}
voiceBroadcastPlayer.seekTo(voiceBroadcast, positionMillis)
}
}

4
vector/src/main/java/im/vector/app/features/voicebroadcast/listening/VoiceBroadcastPlayer.kt
View file

@ -46,9 +46,9 @@ interface VoiceBroadcastPlayer {
fun stop()
/**
* Seek to the given playback position, is milliseconds.
* Seek the given voice broadcast playback to the given position, is milliseconds.
*/
fun seekTo(positionMillis: Int)
fun seekTo(voiceBroadcast: VoiceBroadcast, positionMillis: Int)
/**
* Add a [Listener] to the given voice broadcast.

228
vector/src/main/java/im/vector/app/features/voicebroadcast/listening/VoiceBroadcastPlayerImpl.kt
View file

@ -18,16 +18,18 @@ package im.vector.app.features.voicebroadcast.listening
import android.media.AudioAttributes
import android.media.MediaPlayer
import android.media.MediaPlayer.OnPreparedListener
import androidx.annotation.MainThread
import im.vector.app.core.di.ActiveSessionHolder
import im.vector.app.features.home.room.detail.timeline.helper.AudioMessagePlaybackTracker
import im.vector.app.features.voice.VoiceFailure
import im.vector.app.features.voicebroadcast.duration
import im.vector.app.features.voicebroadcast.isLive
import im.vector.app.features.voicebroadcast.listening.VoiceBroadcastPlayer.Listener
import im.vector.app.features.voicebroadcast.listening.VoiceBroadcastPlayer.State
import im.vector.app.features.voicebroadcast.listening.usecase.GetLiveVoiceBroadcastChunksUseCase
import im.vector.app.features.voicebroadcast.model.VoiceBroadcast
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastState
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastEvent
import im.vector.app.features.voicebroadcast.sequence
import im.vector.app.features.voicebroadcast.usecase.GetVoiceBroadcastEventUseCase
import im.vector.lib.core.utils.timer.CountUpTimer
@ -38,7 +40,6 @@ import kotlinx.coroutines.SupervisorJob
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.onEach
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import org.matrix.android.sdk.api.extensions.orFalse
import org.matrix.android.sdk.api.extensions.tryOrNull
import org.matrix.android.sdk.api.session.room.model.message.MessageAudioContent
@ -47,6 +48,7 @@ import timber.log.Timber
import java.util.concurrent.CopyOnWriteArrayList
import javax.inject.Inject
import javax.inject.Singleton
import kotlin.math.absoluteValue
@Singleton
class VoiceBroadcastPlayerImpl @Inject constructor(
@ -60,19 +62,20 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
get() = sessionHolder.getActiveSession()
private val coroutineScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
private var voiceBroadcastStateJob: Job? = null
private var fetchPlaylistTask: Job? = null
private var voiceBroadcastStateTask: Job? = null
private val mediaPlayerListener = MediaPlayerListener()
private val playbackTicker = PlaybackTicker()
private var currentMediaPlayer: MediaPlayer? = null
private var nextMediaPlayer: MediaPlayer? = null
private var currentSequence: Int? = null
private var fetchPlaylistJob: Job? = null
private var playlist = emptyList<PlaylistItem>()
private var isLive: Boolean = false
private var currentSequence: Int? = null
private var currentVoiceBroadcastEvent: VoiceBroadcastEvent? = null
private val isLive get() = currentVoiceBroadcastEvent?.isLive.orFalse()
private val lastSequence get() = currentVoiceBroadcastEvent?.content?.lastChunkSequence
override var currentVoiceBroadcast: VoiceBroadcast? = null
@ -81,33 +84,10 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
set(value) {
Timber.w("## VoiceBroadcastPlayer state: $field -> $value")
field = value
// Notify state change to all the listeners attached to the current voice broadcast id
currentVoiceBroadcast?.voiceBroadcastId?.let { voiceBroadcastId ->
when (value) {
State.PLAYING -> {
playbackTracker.startPlayback(voiceBroadcastId)
playbackTicker.startPlaybackTicker(voiceBroadcastId)
}
State.PAUSED -> {
playbackTracker.pausePlayback(voiceBroadcastId)
playbackTicker.stopPlaybackTicker()
}
State.BUFFERING -> {
playbackTracker.pausePlayback(voiceBroadcastId)
playbackTicker.stopPlaybackTicker()
}
State.IDLE -> {
playbackTracker.stopPlayback(voiceBroadcastId)
playbackTicker.stopPlaybackTicker()
}
}
listeners[voiceBroadcastId]?.forEach { listener -> listener.onStateChanged(value) }
}
onPlayingStateChanged(value)
}
/**
* Map voiceBroadcastId to listeners.
*/
/** Map voiceBroadcastId to listeners.*/
private val listeners: MutableMap<String, CopyOnWriteArrayList<Listener>> = mutableMapOf()
override fun playOrResume(voiceBroadcast: VoiceBroadcast) {
@ -120,38 +100,28 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
}
override fun pause() {
playingState = State.PAUSED
currentMediaPlayer?.pause()
playingState = State.PAUSED
}
override fun stop() {
// Update state
playingState = State.IDLE
// Stop playback
currentMediaPlayer?.stop()
isLive = false
// Stop and release media players
stopPlayer()
// Release current player
release(currentMediaPlayer)
currentMediaPlayer = null
// Release next player
release(nextMediaPlayer)
nextMediaPlayer = null
// Do not observe anymore voice broadcast state changes
voiceBroadcastStateJob?.cancel()
voiceBroadcastStateJob = null
// Do not fetch the playlist anymore
fetchPlaylistJob?.cancel()
fetchPlaylistJob = null
// Do not observe anymore voice broadcast changes
fetchPlaylistTask?.cancel()
fetchPlaylistTask = null
voiceBroadcastStateTask?.cancel()
voiceBroadcastStateTask = null
// Clear playlist
playlist = emptyList()
currentSequence = null
currentVoiceBroadcastEvent = null
currentVoiceBroadcast = null
}
@ -174,13 +144,18 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
playingState = State.BUFFERING
val voiceBroadcastState = getVoiceBroadcastEventUseCase.execute(voiceBroadcast)?.content?.voiceBroadcastState
isLive = voiceBroadcastState != null && voiceBroadcastState != VoiceBroadcastState.STOPPED
observeVoiceBroadcastLiveState(voiceBroadcast)
fetchPlaylistAndStartPlayback(voiceBroadcast)
}
private fun observeVoiceBroadcastLiveState(voiceBroadcast: VoiceBroadcast) {
voiceBroadcastStateTask = getVoiceBroadcastEventUseCase.execute(voiceBroadcast)
.onEach { currentVoiceBroadcastEvent = it.getOrNull() }
.launchIn(coroutineScope)
}
private fun fetchPlaylistAndStartPlayback(voiceBroadcast: VoiceBroadcast) {
fetchPlaylistJob = getLiveVoiceBroadcastChunksUseCase.execute(voiceBroadcast)
fetchPlaylistTask = getLiveVoiceBroadcastChunksUseCase.execute(voiceBroadcast)
.onEach(this::updatePlaylist)
.launchIn(coroutineScope)
}
@ -204,40 +179,51 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
when (playingState) {
State.PLAYING -> {
if (nextMediaPlayer == null) {
coroutineScope.launch { nextMediaPlayer = prepareNextMediaPlayer() }
prepareNextMediaPlayer()
}
}
State.PAUSED -> {
if (nextMediaPlayer == null) {
coroutineScope.launch { nextMediaPlayer = prepareNextMediaPlayer() }
prepareNextMediaPlayer()
}
}
State.BUFFERING -> {
val newMediaContent = getNextAudioContent()
if (newMediaContent != null) startPlayback()
if (newMediaContent != null) {
val savedPosition = currentVoiceBroadcast?.let { playbackTracker.getPlaybackTime(it.voiceBroadcastId) }
startPlayback(savedPosition)
}
}
State.IDLE -> {
val savedPosition = currentVoiceBroadcast?.let { playbackTracker.getPlaybackTime(it.voiceBroadcastId) }
startPlayback(savedPosition)
}
State.IDLE -> startPlayback()
}
}
private fun startPlayback(sequence: Int? = null, position: Int = 0) {
private fun startPlayback(position: Int? = null) {
stopPlayer()
val playlistItem = when {
sequence != null -> playlist.find { it.audioEvent.sequence == sequence }
position != null -> playlist.lastOrNull { it.startTime <= position }
isLive -> playlist.lastOrNull()
else -> playlist.firstOrNull()
}
val content = playlistItem?.audioEvent?.content ?: run { Timber.w("## VoiceBroadcastPlayer: No content to play"); return }
val computedSequence = playlistItem.audioEvent.sequence
val sequence = playlistItem.audioEvent.sequence
val sequencePosition = position?.let { it - playlistItem.startTime } ?: 0
coroutineScope.launch {
try {
currentMediaPlayer = prepareMediaPlayer(content)
currentMediaPlayer?.start()
if (position > 0) {
currentMediaPlayer?.seekTo(position)
prepareMediaPlayer(content) { mp ->
currentMediaPlayer = mp
currentSequence = sequence
mp.start()
if (sequencePosition > 0) {
mp.seekTo(sequencePosition)
}
playingState = State.PLAYING
prepareNextMediaPlayer()
}
currentSequence = computedSequence
withContext(Dispatchers.Main) { playingState = State.PLAYING }
nextMediaPlayer = prepareNextMediaPlayer()
} catch (failure: Throwable) {
Timber.e(failure, "Unable to start playback")
throw VoiceFailure.UnableToPlay(failure)
@ -250,20 +236,12 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
playingState = State.PLAYING
}
override fun seekTo(positionMillis: Int) {
val duration = getVoiceBroadcastDuration()
val playlistItem = playlist.lastOrNull { it.startTime <= positionMillis } ?: return
val audioEvent = playlistItem.audioEvent
val eventPosition = positionMillis - playlistItem.startTime
Timber.d("## Voice Broadcast | seekTo - duration=$duration, position=$positionMillis, sequence=${audioEvent.sequence}, sequencePosition=$eventPosition")
tryOrNull { currentMediaPlayer?.stop() }
release(currentMediaPlayer)
tryOrNull { nextMediaPlayer?.stop() }
release(nextMediaPlayer)
startPlayback(audioEvent.sequence, eventPosition)
override fun seekTo(voiceBroadcast: VoiceBroadcast, positionMillis: Int) {
if (voiceBroadcast != currentVoiceBroadcast) {
playbackTracker.updatePausedAtPlaybackTime(voiceBroadcast.voiceBroadcastId, positionMillis, 0f)
} else {
startPlayback(positionMillis)
}
}
private fun getNextAudioContent(): MessageAudioContent? {
@ -273,12 +251,24 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
return playlist.find { it.audioEvent.sequence == nextSequence }?.audioEvent?.content
}
private suspend fun prepareNextMediaPlayer(): MediaPlayer? {
val nextContent = getNextAudioContent() ?: return null
return prepareMediaPlayer(nextContent)
private fun prepareNextMediaPlayer() {
nextMediaPlayer = null
val nextContent = getNextAudioContent()
if (nextContent != null) {
coroutineScope.launch {
prepareMediaPlayer(nextContent) { mp ->
if (nextMediaPlayer == null) {
nextMediaPlayer = mp
currentMediaPlayer?.setNextMediaPlayer(mp)
} else {
mp.release()
}
}
}
}
}
private suspend fun prepareMediaPlayer(messageAudioContent: MessageAudioContent): MediaPlayer {
private suspend fun prepareMediaPlayer(messageAudioContent: MessageAudioContent, onPreparedListener: OnPreparedListener): MediaPlayer {
// Download can fail
val audioFile = try {
session.fileService().downloadFile(messageAudioContent)
@ -299,57 +289,55 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
setDataSource(fis.fd)
setOnInfoListener(mediaPlayerListener)
setOnErrorListener(mediaPlayerListener)
setOnPreparedListener(onPreparedListener)
setOnCompletionListener(mediaPlayerListener)
prepare()
}
}
}
private fun release(mp: MediaPlayer?) {
mp?.apply {
release()
setOnInfoListener(null)
setOnCompletionListener(null)
setOnErrorListener(null)
private fun stopPlayer() {
tryOrNull { currentMediaPlayer?.stop() }
currentMediaPlayer?.release()
currentMediaPlayer = null
nextMediaPlayer?.release()
nextMediaPlayer = null
}
private fun onPlayingStateChanged(playingState: State) {
// Notify state change to all the listeners attached to the current voice broadcast id
currentVoiceBroadcast?.voiceBroadcastId?.let { voiceBroadcastId ->
when (playingState) {
State.PLAYING -> playbackTicker.startPlaybackTicker(voiceBroadcastId)
State.PAUSED,
State.BUFFERING,
State.IDLE -> playbackTicker.stopPlaybackTicker(voiceBroadcastId)
}
listeners[voiceBroadcastId]?.forEach { listener -> listener.onStateChanged(playingState) }
}
}
private inner class MediaPlayerListener :
MediaPlayer.OnInfoListener,
MediaPlayer.OnPreparedListener,
MediaPlayer.OnCompletionListener,
MediaPlayer.OnErrorListener {
override fun onInfo(mp: MediaPlayer, what: Int, extra: Int): Boolean {
when (what) {
MediaPlayer.MEDIA_INFO_STARTED_AS_NEXT -> {
release(currentMediaPlayer)
currentMediaPlayer = mp
currentSequence = currentSequence?.plus(1)
coroutineScope.launch { nextMediaPlayer = prepareNextMediaPlayer() }
currentMediaPlayer = mp
prepareNextMediaPlayer()
}
}
return false
}
override fun onPrepared(mp: MediaPlayer) {
when (mp) {
currentMediaPlayer -> {
nextMediaPlayer?.let { mp.setNextMediaPlayer(it) }
}
nextMediaPlayer -> {
tryOrNull { currentMediaPlayer?.setNextMediaPlayer(mp) }
}
}
}
override fun onCompletion(mp: MediaPlayer) {
if (nextMediaPlayer != null) return
val voiceBroadcast = currentVoiceBroadcast ?: return
val voiceBroadcastEventContent = getVoiceBroadcastEventUseCase.execute(voiceBroadcast)?.content ?: return
isLive = voiceBroadcastEventContent.voiceBroadcastState != null && voiceBroadcastEventContent.voiceBroadcastState != VoiceBroadcastState.STOPPED
if (!isLive && voiceBroadcastEventContent.lastChunkSequence == currentSequence) {
if (!isLive && lastSequence == currentSequence) {
// We'll not receive new chunks anymore so we can stop the live listening
stop()
} else {
@ -388,23 +376,31 @@ class VoiceBroadcastPlayerImpl @Inject constructor(
if (currentMediaPlayer?.isPlaying.orFalse()) {
val itemStartPosition = currentSequence?.let { seq -> playlist.find { it.audioEvent.sequence == seq } }?.startTime
val currentVoiceBroadcastPosition = itemStartPosition?.plus(currentMediaPlayer?.currentPosition ?: 0)
Timber.d("Voice Broadcast | VoiceBroadcastPlayerImpl - sequence: $currentSequence, itemStartPosition $itemStartPosition, currentMediaPlayer=$currentMediaPlayer, currentMediaPlayer?.currentPosition: ${currentMediaPlayer?.currentPosition}")
if (currentVoiceBroadcastPosition != null) {
val totalDuration = getVoiceBroadcastDuration()
val percentage = currentVoiceBroadcastPosition.toFloat() / totalDuration
playbackTracker.updatePlayingAtPlaybackTime(id, currentVoiceBroadcastPosition, percentage)
} else {
playbackTracker.stopPlayback(id)
stopPlaybackTicker()
stopPlaybackTicker(id)
}
} else {
playbackTracker.stopPlayback(id)
stopPlaybackTicker()
stopPlaybackTicker(id)
}
}
fun stopPlaybackTicker() {
fun stopPlaybackTicker(id: String) {
playbackTicker?.stop()
playbackTicker = null
val totalDuration = getVoiceBroadcastDuration()
val playbackTime = playbackTracker.getPlaybackTime(id)
val remainingTime = totalDuration - playbackTime
if (remainingTime < 1000) {
playbackTracker.updatePausedAtPlaybackTime(id, 0, 0f)
} else {
playbackTracker.pausePlayback(id)
}
}
}
}

5
vector/src/main/java/im/vector/app/features/voicebroadcast/listening/usecase/GetLiveVoiceBroadcastChunksUseCase.kt
View file

@ -29,9 +29,12 @@ import kotlinx.coroutines.channels.awaitClose
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.callbackFlow
import kotlinx.coroutines.flow.emptyFlow
import kotlinx.coroutines.flow.firstOrNull
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.lastOrNull
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.runningReduce
import kotlinx.coroutines.runBlocking
import org.matrix.android.sdk.api.session.events.model.RelationType
import org.matrix.android.sdk.api.session.room.model.message.MessageAudioEvent
import org.matrix.android.sdk.api.session.room.model.message.asMessageAudioEvent
@ -57,7 +60,7 @@ class GetLiveVoiceBroadcastChunksUseCase @Inject constructor(
val existingChunks = room.timelineService().getTimelineEventsRelatedTo(RelationType.REFERENCE, voiceBroadcast.voiceBroadcastId)
.mapNotNull { timelineEvent -> timelineEvent.root.asMessageAudioEvent().takeIf { it.isVoiceBroadcast() } }
val voiceBroadcastEvent = getVoiceBroadcastEventUseCase.execute(voiceBroadcast)
val voiceBroadcastEvent = runBlocking { getVoiceBroadcastEventUseCase.execute(voiceBroadcast).firstOrNull()?.getOrNull() }
val voiceBroadcastState = voiceBroadcastEvent?.content?.voiceBroadcastState
return if (voiceBroadcastState == null || voiceBroadcastState == VoiceBroadcastState.STOPPED) {

35
vector/src/main/java/im/vector/app/features/voicebroadcast/usecase/GetVoiceBroadcastEventUseCase.kt
View file

@ -16,12 +16,26 @@
package im.vector.app.features.voicebroadcast.usecase
import im.vector.app.features.voicebroadcast.VoiceBroadcastConstants
import im.vector.app.features.voicebroadcast.model.VoiceBroadcast
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastEvent
import im.vector.app.features.voicebroadcast.model.VoiceBroadcastState
import im.vector.app.features.voicebroadcast.model.asVoiceBroadcastEvent
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.emptyFlow
import kotlinx.coroutines.flow.filter
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.mapNotNull
import org.matrix.android.sdk.api.query.QueryStringValue
import org.matrix.android.sdk.api.session.Session
import org.matrix.android.sdk.api.session.events.model.RelationType
import org.matrix.android.sdk.api.session.getRoom
import org.matrix.android.sdk.api.util.Optional
import org.matrix.android.sdk.api.util.toOptional
import org.matrix.android.sdk.flow.flow
import org.matrix.android.sdk.flow.unwrap
import timber.log.Timber
import javax.inject.Inject
@ -29,14 +43,27 @@ class GetVoiceBroadcastEventUseCase @Inject constructor(
private val session: Session,
) {
fun execute(voiceBroadcast: VoiceBroadcast): VoiceBroadcastEvent? {
fun execute(voiceBroadcast: VoiceBroadcast): Flow<Optional<VoiceBroadcastEvent>> {
val room = session.getRoom(voiceBroadcast.roomId) ?: error("Unknown roomId: ${voiceBroadcast.roomId}")
Timber.d("## GetVoiceBroadcastUseCase: get voice broadcast $voiceBroadcast")
val initialEvent = room.timelineService().getTimelineEvent(voiceBroadcast.voiceBroadcastId)?.root?.asVoiceBroadcastEvent()
val relatedEvents = room.timelineService().getTimelineEventsRelatedTo(RelationType.REFERENCE, voiceBroadcast.voiceBroadcastId)
.sortedBy { it.root.originServerTs }
return relatedEvents.mapNotNull { it.root.asVoiceBroadcastEvent() }.lastOrNull() ?: initialEvent
val latestEvent = room.timelineService().getTimelineEventsRelatedTo(RelationType.REFERENCE, voiceBroadcast.voiceBroadcastId)
.mapNotNull { it.root.asVoiceBroadcastEvent() }
.maxByOrNull { it.root.originServerTs ?: 0 }
?: initialEvent
return when (latestEvent?.content?.voiceBroadcastState) {
null, VoiceBroadcastState.STOPPED -> flowOf(latestEvent.toOptional())
else -> {
room.flow()
.liveStateEvent(VoiceBroadcastConstants.STATE_ROOM_VOICE_BROADCAST_INFO, QueryStringValue.Equals(latestEvent.root.stateKey.orEmpty()))
.unwrap()
.mapNotNull { it.asVoiceBroadcastEvent() }
.filter { it.reference?.eventId == voiceBroadcast.voiceBroadcastId }
.map { it.toOptional() }
}
}
}
}