// ReceivePCM will receive on the the Discordgo OpusRecv channel and decode
// the opus audio into PCM then send it on the provided channel.
func ReceivePCM(v *discordgo.VoiceConnection, c chan *discordgo.Packet) {
// make sure this only runs one instance at a time.
mu.Lock()
if recvpcm || c == nil {
mu.Unlock()
return
}
recvpcm = true
mu.Unlock()
defer func() { sendpcm = false }()
var err error
for {
if v.Ready == false || v.OpusRecv == nil {
fmt.Printf("Discordgo not ready to receive opus packets. %+v : %+v", v.Ready, v.OpusSend)
return
}
p, ok := <-v.OpusRecv
if !ok {
return
}
if speakers == nil {
speakers = make(map[uint32]*gopus.Decoder)
}
_, ok = speakers[p.SSRC]
if !ok {
speakers[p.SSRC], err = gopus.NewDecoder(48000, 2)
if err != nil {
fmt.Println("error creating opus decoder:", err)
continue
}
}
p.PCM, err = speakers[p.SSRC].Decode(p.Opus, 960, false)
if err != nil {
fmt.Println("Error decoding opus data: ", err)
continue
}
c <- p
}
}
func (*generator) NewDecoder() gumble.AudioDecoder {
d, _ := gopus.NewDecoder(gumble.AudioSampleRate, gumble.AudioChannels)
return &Decoder{
d,
}
}
func handleUserState(c *Client, buffer []byte) error {
var packet MumbleProto.UserState
if err := proto.Unmarshal(buffer, &packet); err != nil {
return err
}
if packet.Session == nil {
return errIncompleteProtobuf
}
event := UserChangeEvent{
Client: c,
}
var user, actor *User
{
session := uint(*packet.Session)
if !c.users.Exists(session) {
user = c.users.create(session)
user.channel = c.channels.ByID(0)
user.client = c
event.Type |= UserChangeConnected
decoder, _ := gopus.NewDecoder(AudioSampleRate, 1)
user.decoder = decoder
if user.channel == nil {
return errInvalidProtobuf
}
event.Type |= UserChangeChannel
user.channel.users[session] = user
} else {
user = c.users.BySession(session)
}
}
event.User = user
if packet.Actor != nil {
actor = c.users.BySession(uint(*packet.Actor))
if actor == nil {
return errInvalidProtobuf
}
event.Actor = actor
}
if packet.Name != nil {
if *packet.Name != user.name {
event.Type |= UserChangeName
}
user.name = *packet.Name
}
if packet.UserId != nil {
if *packet.UserId != user.userID && !event.Type.Has(UserChangeConnected) {
if *packet.UserId != math.MaxUint32 {
event.Type |= UserChangeRegistered
user.userID = *packet.UserId
} else {
event.Type |= UserChangeUnregistered
user.userID = 0
}
} else {
user.userID = *packet.UserId
}
}
if packet.ChannelId != nil {
if user.channel != nil {
user.channel.users.delete(user.Session())
}
newChannel := c.channels.ByID(uint(*packet.ChannelId))
if newChannel == nil {
return errInvalidProtobuf
}
if newChannel != user.channel {
event.Type |= UserChangeChannel
user.channel = newChannel
}
user.channel.users[user.Session()] = user
}
if packet.Mute != nil {
if *packet.Mute != user.mute {
event.Type |= UserChangeAudio
}
user.mute = *packet.Mute
}
if packet.Deaf != nil {
if *packet.Deaf != user.deaf {
event.Type |= UserChangeAudio
}
user.deaf = *packet.Deaf
}
if packet.Suppress != nil {
if *packet.Suppress != user.suppress {
event.Type |= UserChangeAudio
}
user.suppress = *packet.Suppress
}
if packet.SelfMute != nil {
if *packet.SelfMute != user.selfMute {
event.Type |= UserChangeAudio
}
user.selfMute = *packet.SelfMute
}
if packet.SelfDeaf != nil {
if *packet.SelfDeaf != user.selfDeaf {
event.Type |= UserChangeAudio
}
user.selfDeaf = *packet.SelfDeaf
}
if packet.Texture != nil {
event.Type |= UserChangeTexture
user.texture = packet.Texture
user.textureHash = nil
}
if packet.Comment != nil {
if *packet.Comment != user.comment {
event.Type |= UserChangeComment
}
user.comment = *packet.Comment
user.commentHash = nil
}
if packet.Hash != nil {
user.hash = *packet.Hash
}
if packet.CommentHash != nil {
event.Type |= UserChangeComment
user.commentHash = packet.CommentHash
user.comment = ""
}
if packet.TextureHash != nil {
event.Type |= UserChangeTexture
user.textureHash = packet.TextureHash
user.texture = nil
}
if packet.PrioritySpeaker != nil {
if *packet.PrioritySpeaker != user.prioritySpeaker {
event.Type |= UserChangePrioritySpeaker
}
user.prioritySpeaker = *packet.PrioritySpeaker
}
if packet.Recording != nil {
if *packet.Recording != user.recording {
event.Type |= UserChangeRecording
}
user.recording = *packet.Recording
}
if c.state == StateSynced {
c.listeners.OnUserChange(&event)
}
return nil
}