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package bmumble
import (
"fmt"
"layeh.com/gumble/gumble"
)
// This is a dummy implementation of a Gumble audio codec which claims
// to implement Opus, but does not actually do anything. This serves
// as a workaround until https://github.com/layeh/gumble/pull/61 is
// merged.
// See https://github.com/42wim/matterbridge/issues/1750 for details.
const (
audioCodecIDOpus = 4
)
func registerNullCodecAsOpus() {
codec := &NullCodec{
encoder: &NullAudioEncoder{},
decoder: &NullAudioDecoder{},
}
gumble.RegisterAudioCodec(audioCodecIDOpus, codec)
}
type NullCodec struct {
encoder *NullAudioEncoder
decoder *NullAudioDecoder
}
func (c *NullCodec) ID() int {
return audioCodecIDOpus
}
func (c *NullCodec) NewEncoder() gumble.AudioEncoder {
e := &NullAudioEncoder{}
return e
}
func (c *NullCodec) NewDecoder() gumble.AudioDecoder {
d := &NullAudioDecoder{}
return d
}
type NullAudioEncoder struct{}
func (e *NullAudioEncoder) ID() int {
return audioCodecIDOpus
}
func (e *NullAudioEncoder) Encode(pcm []int16, mframeSize, maxDataBytes int) ([]byte, error) {
return nil, fmt.Errorf("not implemented")
}
func (e *NullAudioEncoder) Reset() {
}
type NullAudioDecoder struct{}
func (d *NullAudioDecoder) ID() int {
return audioCodecIDOpus
}
func (d *NullAudioDecoder) Decode(data []byte, frameSize int) ([]int16, error) {
return nil, fmt.Errorf("not implemented")
}
func (d *NullAudioDecoder) Reset() {
}
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