122 lines
2.3 KiB
Go
122 lines
2.3 KiB
Go
package main
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import (
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"log"
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"sync"
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"time"
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"layeh.com/gumble/gumble"
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_ "layeh.com/gumble/opus"
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)
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var mutex sync.Mutex
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var fromMumbleArr []chan gumble.AudioBuffer
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var mumbleStreamingArr []bool
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// MumbleDuplex - listenera and outgoing
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type MumbleDuplex struct{}
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// OnAudioStream - Spawn routines to handle incoming packets
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func (m MumbleDuplex) OnAudioStream(e *gumble.AudioStreamEvent) {
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// hold a reference ot the channel in the closure
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localMumbleArray := make(chan gumble.AudioBuffer, 100)
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mutex.Lock()
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fromMumbleArr = append(fromMumbleArr, localMumbleArray)
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mumbleStreamingArr = append(mumbleStreamingArr, false)
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mutex.Unlock()
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go func() {
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log.Println("new mumble audio stream", e.User.Name)
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for {
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select {
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case p := <-e.C:
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// log.Println("audio packet", p.Sender.Name, len(p.AudioBuffer))
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// 480 per 10ms
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for i := 0; i < len(p.AudioBuffer)/480; i++ {
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localMumbleArray <- p.AudioBuffer[480*i : 480*(i+1)]
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}
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}
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}
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}()
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return
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}
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func (m MumbleDuplex) fromMumbleMixer(toDiscord chan []int16) {
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ticker := time.NewTicker(10 * time.Millisecond)
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sendAudio := false
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for {
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<-ticker.C
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mutex.Lock()
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sendAudio = false
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internalMixerArr := make([]gumble.AudioBuffer, 0)
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// Work through each channel
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for i := 0; i < len(fromMumbleArr); i++ {
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if len(fromMumbleArr[i]) > 0 {
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sendAudio = true
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if mumbleStreamingArr[i] == false {
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mumbleStreamingArr[i] = true
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// log.Println("mumble starting", i)
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}
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x1 := (<-fromMumbleArr[i])
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internalMixerArr = append(internalMixerArr, x1)
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} else {
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if mumbleStreamingArr[i] == true {
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mumbleStreamingArr[i] = false
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// log.Println("mumble stopping", i)
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}
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}
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}
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mutex.Unlock()
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outBuf := make([]int16, 480)
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for i := 0; i < len(outBuf); i++ {
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for j := 0; j < len(internalMixerArr); j++ {
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outBuf[i] += (internalMixerArr[j])[i]
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}
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}
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if sendAudio {
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toDiscord <- outBuf
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}
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}
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}
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func (m MumbleDuplex) sendToMumble(mumble *gumble.Client, toMumble chan gumble.AudioBuffer) {
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streaming := false
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ticker := time.NewTicker(10 * time.Millisecond)
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send := mumble.AudioOutgoing()
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for {
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<-ticker.C
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if len(toMumble) > 0 {
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streaming = true
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pcm := <-toMumble
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// gain up
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for i := range pcm {
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pcm[i] = int16((float64(pcm[i]) * 8))
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}
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send <- pcm
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} else {
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if streaming {
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streaming = false
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}
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}
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}
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}
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