Method Encode

backend/go/opus/codec.go:160–169

Encode encodes a frame of PCM int16 samples. It returns the number of bytes written to out, or a negative error code.

(pcm []int16, frameSize int, out []byte)

// Encode encodes a frame of PCM int16 samples. It returns the number of bytes
// written to out, or a negative error code.
func (e *Encoder) Encode(pcm []int16, frameSize int, out []byte) (int, error) {
	if len(pcm) == 0 || len(out) == 0 {
		return 0, errors.New("opus encode: empty input or output buffer")
	}
	n := cEncode(e.st, &pcm[0], int32(frameSize), &out[0], int32(len(out)))
	if n < 0 {
		return 0, fmt.Errorf("opus_encode failed: error %d", n)
	}
	return int(n), nil
}

func (e *Encoder) SetBitrate(bitrate int) error {
	if ret := cSetBitrate(e.st, int32(bitrate)); ret != 0 {