Opus
Opus audio codec (RFC 6716): API and operations manual
1.2
Macros
Pre-defined values for CTL interface

Macros

#define OPUS_AUTO
 Auto/default setting. More...
 
#define OPUS_BITRATE_MAX
 Maximum bitrate. More...
 
#define OPUS_APPLICATION_VOIP
 Best for most VoIP/videoconference applications where listening quality and intelligibility matter most. More...
 
#define OPUS_APPLICATION_AUDIO
 Best for broadcast/high-fidelity application where the decoded audio should be as close as possible to the input. More...
 
#define OPUS_APPLICATION_RESTRICTED_LOWDELAY
 Only use when lowest-achievable latency is what matters most. More...
 
#define OPUS_SIGNAL_VOICE   3001
 Signal being encoded is voice. More...
 
#define OPUS_SIGNAL_MUSIC   3002
 Signal being encoded is music. More...
 
#define OPUS_BANDWIDTH_NARROWBAND
 4 kHz bandpass More...
 
#define OPUS_BANDWIDTH_MEDIUMBAND
 6 kHz bandpass More...
 
#define OPUS_BANDWIDTH_WIDEBAND
 8 kHz bandpass More...
 
#define OPUS_BANDWIDTH_SUPERWIDEBAND
 12 kHz bandpass More...
 
#define OPUS_BANDWIDTH_FULLBAND
 20 kHz bandpass More...
 
#define OPUS_FRAMESIZE_ARG   5000
 Select frame size from the argument (default) More...
 
#define OPUS_FRAMESIZE_2_5_MS   5001
 Use 2.5 ms frames. More...
 
#define OPUS_FRAMESIZE_5_MS   5002
 Use 5 ms frames. More...
 
#define OPUS_FRAMESIZE_10_MS   5003
 Use 10 ms frames. More...
 
#define OPUS_FRAMESIZE_20_MS   5004
 Use 20 ms frames. More...
 
#define OPUS_FRAMESIZE_40_MS   5005
 Use 40 ms frames. More...
 
#define OPUS_FRAMESIZE_60_MS   5006
 Use 60 ms frames. More...
 
#define OPUS_FRAMESIZE_80_MS   5007
 Use 80 ms frames. More...
 
#define OPUS_FRAMESIZE_100_MS   5008
 Use 100 ms frames. More...
 
#define OPUS_FRAMESIZE_120_MS   5009
 Use 120 ms frames. More...
 

Detailed Description

See also
Generic CTLs, Encoder related CTLs

Macro Definition Documentation

#define OPUS_APPLICATION_AUDIO

Best for broadcast/high-fidelity application where the decoded audio should be as close as possible to the input.

#define OPUS_APPLICATION_RESTRICTED_LOWDELAY

Only use when lowest-achievable latency is what matters most.

Voice-optimized modes cannot be used.

#define OPUS_APPLICATION_VOIP

Best for most VoIP/videoconference applications where listening quality and intelligibility matter most.

#define OPUS_AUTO

Auto/default setting.

#define OPUS_BANDWIDTH_FULLBAND

20 kHz bandpass

#define OPUS_BANDWIDTH_MEDIUMBAND

6 kHz bandpass

#define OPUS_BANDWIDTH_NARROWBAND

4 kHz bandpass

#define OPUS_BANDWIDTH_SUPERWIDEBAND

12 kHz bandpass

#define OPUS_BANDWIDTH_WIDEBAND

8 kHz bandpass

#define OPUS_BITRATE_MAX

Maximum bitrate.

#define OPUS_FRAMESIZE_100_MS   5008

Use 100 ms frames.

#define OPUS_FRAMESIZE_10_MS   5003

Use 10 ms frames.

#define OPUS_FRAMESIZE_120_MS   5009

Use 120 ms frames.

#define OPUS_FRAMESIZE_20_MS   5004

Use 20 ms frames.

#define OPUS_FRAMESIZE_2_5_MS   5001

Use 2.5 ms frames.

#define OPUS_FRAMESIZE_40_MS   5005

Use 40 ms frames.

#define OPUS_FRAMESIZE_5_MS   5002

Use 5 ms frames.

#define OPUS_FRAMESIZE_60_MS   5006

Use 60 ms frames.

#define OPUS_FRAMESIZE_80_MS   5007

Use 80 ms frames.

#define OPUS_FRAMESIZE_ARG   5000

Select frame size from the argument (default)

#define OPUS_SIGNAL_MUSIC   3002

Signal being encoded is music.

#define OPUS_SIGNAL_VOICE   3001

Signal being encoded is voice.

For more information visit the Opus Website.