Manpages - opus_decoderctls.3

#define *OPUS_SET_GAIN*(x)
Configures decoder gain adjustment.

#define *OPUS_GET_GAIN*(x)
Gets the decoder’s configured gain adjustment.

#define *OPUS_GET_LAST_PACKET_DURATION*(x)
Gets the duration (in samples) of the last packet successfully decoded or concealed.

#define *OPUS_GET_PITCH*(x)
Gets the pitch of the last decoded frame, if available.

Gets the decoder’s configured gain adjustment.

See also

OPUS_SET_GAIN

Parameters

x opus_int32 *: Amount to scale PCM signal by in Q8 dB units.

Gets the duration (in samples) of the last packet successfully decoded or concealed.

Parameters

x opus_int32 *: Number of samples (at current sampling rate).

Gets the pitch of the last decoded frame, if available. This can be used for any post-processing algorithm requiring the use of pitch, e.g. time stretching/shortening. If the last frame was not voiced, or if the pitch was not coded in the frame, then zero is returned.

This CTL is only implemented for decoder instances.

Parameters

x opus_int32 *: pitch period at 48 kHz (or 0 if not available)

Configures decoder gain adjustment. Scales the decoded output by a factor specified in Q8 dB units. This has a maximum range of -32768 to 32767 inclusive, and returns OPUS_BAD_ARG otherwise. The default is zero indicating no adjustment. This setting survives decoder reset.

gain = pow(10, x/(20.0*256))

Parameters

x opus_int32: Amount to scale PCM signal by in Q8 dB units.