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Implement a workaround to signal Opus support (mumble) (#1764)
* Mumble: Implement a workaround to signal Opus support without pulling in the CGO gopus dependency. * mumble: lowercase error messages * mumble: Add link to #1750 in bridge/mumble/codec.go
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70
bridge/mumble/codec.go
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70
bridge/mumble/codec.go
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@ -0,0 +1,70 @@
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package bmumble
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import (
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"fmt"
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"layeh.com/gumble/gumble"
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)
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// This is a dummy implementation of a Gumble audio codec which claims
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// to implement Opus, but does not actually do anything. This serves
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// as a workaround until https://github.com/layeh/gumble/pull/61 is
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// merged.
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// See https://github.com/42wim/matterbridge/issues/1750 for details.
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const (
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audioCodecIDOpus = 4
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)
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func registerNullCodecAsOpus() {
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codec := &NullCodec{
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encoder: &NullAudioEncoder{},
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decoder: &NullAudioDecoder{},
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}
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gumble.RegisterAudioCodec(audioCodecIDOpus, codec)
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}
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type NullCodec struct {
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encoder *NullAudioEncoder
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decoder *NullAudioDecoder
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}
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func (c *NullCodec) ID() int {
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return audioCodecIDOpus
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}
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func (c *NullCodec) NewEncoder() gumble.AudioEncoder {
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e := &NullAudioEncoder{}
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return e
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}
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func (c *NullCodec) NewDecoder() gumble.AudioDecoder {
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d := &NullAudioDecoder{}
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return d
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}
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type NullAudioEncoder struct{}
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func (e *NullAudioEncoder) ID() int {
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return audioCodecIDOpus
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}
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func (e *NullAudioEncoder) Encode(pcm []int16, mframeSize, maxDataBytes int) ([]byte, error) {
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return nil, fmt.Errorf("not implemented")
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}
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func (e *NullAudioEncoder) Reset() {
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}
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type NullAudioDecoder struct{}
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func (d *NullAudioDecoder) ID() int {
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return audioCodecIDOpus
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}
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func (d *NullAudioDecoder) Decode(data []byte, frameSize int) ([]int16, error) {
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return nil, fmt.Errorf("not implemented")
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}
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func (d *NullAudioDecoder) Reset() {
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}
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@ -185,6 +185,7 @@ func (b *Bmumble) doConnect() error {
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gumbleConfig.Password = password
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}
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registerNullCodecAsOpus()
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client, err := gumble.DialWithDialer(new(net.Dialer), b.GetString("Server"), gumbleConfig, &b.tlsConfig)
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if err != nil {
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return err
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