opus_decoderctls - Man Page

#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.
#define OPUS_SET_OSCE_BWE(x)
Enables blind bandwidth extension for wideband signals if decoding sampling rate is 48 kHz.
#define OPUS_GET_OSCE_BWE(x)
Gets blind bandwidth extension flag for wideband signals if decoding sampling rate is 48 kHz.
#define OPUS_SET_IGNORE_EXTENSIONS(x)
If set to 1, the decoder will ignore all extensions found in the padding area (does not affect DRED, which is decoded separately).
#define OPUS_GET_IGNORE_EXTENSIONS(x)
Gets whether the decoder is ignoring extensions.

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 whether the decoder is ignoring extensions.

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 blind bandwidth extension flag for wideband signals if decoding sampling rate is 48 kHz.

Parameters

x opus_int32 *: 1 if bwe enabled, 0 if disabled.

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.

If set to 1, the decoder will ignore all extensions found in the padding area (does not affect DRED, which is decoded separately).

Enables blind bandwidth extension for wideband signals if decoding sampling rate is 48 kHz.

Parameters

x opus_int32 : 1 enables bandwidth extension, 0 disables it. The default is 0.