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move default audioframesender impl into separate file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package udp | ||
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| import dev.kord.common.annotation.KordVoice | ||
| import dev.kord.voice.AudioFrame | ||
| import dev.kord.voice.FrameInterceptor | ||
| import dev.kord.voice.udp.AudioFrameSender | ||
| import dev.kord.voice.udp.AudioFrameSenderConfiguration | ||
| import dev.kord.voice.udp.AudioPacket | ||
| import dev.kord.voice.udp.VoiceUdpConnection | ||
| import kotlinx.coroutines.CoroutineDispatcher | ||
| import kotlinx.coroutines.CoroutineName | ||
| import kotlinx.coroutines.SupervisorJob | ||
| import kotlinx.coroutines.channels.Channel | ||
| import kotlinx.coroutines.flow.collect | ||
| import kotlinx.coroutines.flow.receiveAsFlow | ||
| import kotlinx.coroutines.flow.transform | ||
| import kotlinx.coroutines.launch | ||
| import mu.KotlinLogging | ||
| import kotlin.coroutines.CoroutineContext | ||
| import kotlin.random.Random | ||
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| private val audioFrameSenderLogger = KotlinLogging.logger { } | ||
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| @KordVoice | ||
| data class DefaultAudioFrameSenderData( | ||
| val udp: VoiceUdpConnection, | ||
| val dispatcher: CoroutineDispatcher | ||
| ) | ||
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| @KordVoice | ||
| class DefaultAudioFrameSender( | ||
| val data: DefaultAudioFrameSenderData | ||
| ) : AudioFrameSender { | ||
| override val coroutineContext: CoroutineContext = | ||
| SupervisorJob() + data.dispatcher + CoroutineName("Default Audio Frame Poller") | ||
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| private fun createFrameInterceptor(configuration: AudioFrameSenderConfiguration): FrameInterceptor = | ||
| with(configuration) { | ||
| val builder = baseFrameInterceptorContext | ||
| builder.ssrc = ssrc | ||
| return interceptorFactory(builder.build()) // we should assume that everything else is set before-hand in the base builder | ||
| } | ||
|
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| override suspend fun start(configuration: AudioFrameSenderConfiguration) = with(configuration) { | ||
| val interceptor = createFrameInterceptor(configuration) | ||
| var sequence: UShort = Random.nextBits(UShort.SIZE_BITS).toUShort() | ||
|
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| val frames = Channel<AudioFrame?>(Channel.RENDEZVOUS) | ||
| with(provider) { launch { provideFrames(frames) } } | ||
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| audioFrameSenderLogger.trace { "audio poller starting." } | ||
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| try { | ||
| frames.receiveAsFlow() | ||
| .transform { emit(interceptor.intercept(it)) } | ||
| .collect { frame -> | ||
| if (frame != null) { | ||
| val encryptedPacket = AudioPacket.DecryptedPacket( | ||
| sequence = sequence, | ||
| timestamp = sequence * 960u, | ||
| ssrc = ssrc, | ||
| decryptedData = frame.data | ||
| ).encrypt(key) | ||
|
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| data.udp.send(encryptedPacket.asByteReadPacket()) | ||
| sequence++ | ||
| } | ||
| } | ||
| } catch (e: Exception) { | ||
| /* we're done polling, nothing to worry about */ | ||
| } | ||
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| audioFrameSenderLogger.trace { "udp connection closed, stopped polling for audio frames." } | ||
| } | ||
| } |