Provided by: libopus-doc_1.4-1build1_all
NAME
opus_decoderctls - Decoder related CTLs
SYNOPSIS
Macros #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.
Detailed Description
See also Generic CTLs, Encoder related CTLs, Opus Decoder
Macro Definition Documentation
#define OPUS_GET_GAIN(x) 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. #define OPUS_GET_LAST_PACKET_DURATION(x) Gets the duration (in samples) of the last packet successfully decoded or concealed. Parameters x opus_int32 *: Number of samples (at current sampling rate). #define OPUS_GET_PITCH(x) 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) #define OPUS_SET_GAIN(x) 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.
Author
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