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package bot |
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import ( |
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"bufio" |
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"encoding/binary" |
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"errors" |
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"fmt" |
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"io" |
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"time" |
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"github.com/FlameInTheDark/gopus" |
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) |
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const ( |
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// CHANNELS count of audio channels |
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CHANNELS int = 2 |
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// FRAME_RATE ... |
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FRAME_RATE int = 48000 |
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// FRAME_SIZE ... |
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FRAME_SIZE int = 960 |
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// MAX_BYTES max bytes per sample |
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MAX_BYTES int = (FRAME_SIZE * 2) * 2 |
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) |
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func (connection *Connection) EncodeOpusAndSend(reader io.Reader) error { |
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if connection.playing { |
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return errors.New("song already playing") |
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} |
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connection.playing = true |
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_ = connection.voiceConnection.Speaking(true) |
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defer func() { _ = connection.voiceConnection.Speaking(false) }() |
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breader := bufio.NewReaderSize(reader, 16384) |
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var buffer [FRAME_SIZE * CHANNELS]int16 |
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encoder, err := gopus.NewEncoder(FRAME_RATE, CHANNELS, gopus.Audio) |
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if err != nil { |
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fmt.Println("Can's create a gopus encoder", err) |
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return err |
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} |
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voice := connection.voiceConnection |
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loop: |
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for { |
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select { |
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case _ = <-connection.quitChan: |
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break loop |
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default: |
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err = binary.Read(breader, binary.LittleEndian, &buffer) |
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if err == io.EOF || err == io.ErrUnexpectedEOF { |
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return nil |
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} else if err != nil { |
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return err |
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} |
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opus, err := encoder.Encode(buffer[:], FRAME_SIZE, MAX_BYTES) |
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if err != nil { |
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fmt.Println("Gopus encoding error,", err) |
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return err |
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} |
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if !voice.Ready || voice.OpusSend == nil { |
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fmt.Printf("Discordgo not ready for opus packets. %+v : %+v", voice.Ready, voice.OpusSend) |
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return err |
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} |
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select { |
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case voice.OpusSend <- opus: |
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case <-time.After(time.Second * 5): |
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break |
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} |
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} |
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} |
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return nil |
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} |
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// Stop stops playback |
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func (connection *Connection) Stop() { |
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connection.playing = false |
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connection.quitChan <- struct{}{} |
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} |
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FlameInTheDark /
dtbot
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