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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