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Gamma
0.9.5
Generic Synthesis Library
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Gamma
0.9.5
Generic Synthesis Library
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Audio input/output streaming. More...
#include <AudioIO.h>
Public Member Functions | |
| AudioIO (int framesPerBuf=64, double framesPerSec=44100.0, void(*callback)(AudioIOData &)=0, void *userData=0, int outChans=2, int inChans=0) | |
| bool | clipOut () const |
| Returns clipOut setting. | |
| double | cpu () const |
| Returns current CPU usage of audio thread. | |
| bool | supportsFPS (double fps) const |
| Return true if fps supported, otherwise false. | |
| bool | zeroNANs () const |
| Returns whether to zero NANs in output buffer going to DAC. | |
| void | operator() () |
| Call callback manually. | |
| bool | open () |
| Opens audio device. | |
| bool | close () |
| Closes audio device. Will stop active IO. | |
| bool | start () |
| Starts the audio IO. Will open audio device if necessary. | |
| bool | stop () |
| Stops the audio IO. | |
| void | channels (int num, bool forOutput) |
| Sets number of effective channels on input or output device depending on 'forOutput' flag. | |
| void | channelsIn (int n) |
| Set number of input channels. | |
| void | channelsOut (int n) |
| Set number of output channels. | |
| void | channelsBus (int num) |
| Set number of bus channels. | |
| void | clipOut (bool v) |
| Set whether to clip output between -1 and 1. | |
| void | deviceIn (const AudioDevice &v) |
| Set input device. | |
| void | deviceOut (const AudioDevice &v) |
| Set output device. | |
| void | framesPerSecond (double v) |
| Set number of frames per second. | |
| void | framesPerBuffer (int n) |
| Set number of frames per processing buffer. | |
| void | zeroNANs (bool v) |
| Set whether to zero NANs in output buffer going to DAC. | |
| void | print () |
| Prints info about current i/o devices to stdout. | |
| bool | operator() () const |
| Iterate frame counter, returning true while more frames. | |
| int | frame () const |
| Get current frame number. | |
| void | frame (int v) |
| Set frame count for next iteration. | |
| float & | bus (int chan) const |
| Get bus sample at current frame iteration on specified channel. | |
| float & | bus (int chan, int frame) const |
| Get bus sample at specified channel and frame. | |
| float * | busBuffer (int chan=0) const |
| Get non-interleaved bus buffer on specified channel. | |
| const float & | in (int chan) const |
| Get input sample at current frame iteration on specified channel. | |
| const float & | in (int chan, int frame) const |
| Get input sample at specified channel and frame. | |
| const float * | inBuffer (int chan=0) const |
| Get non-interleaved input buffer on specified channel. | |
| float & | out (int chan) const |
| Get output sample at current frame iteration on specified channel. | |
| float & | out (int chan, int frame) const |
| Get output sample at specified channel and frame. | |
| float * | outBuffer (int chan=0) const |
| Get non-interleaved output buffer on specified channel. | |
| void | sum (float v, int chan) const |
| Add value to current output sample on specified channel. | |
| void | sum (float v, int ch1, int ch2) const |
| Add value to current output sample on specified channels. | |
| float & | temp (int frame) const |
| Get sample from temporary buffer at specified frame. | |
| float * | tempBuffer () const |
| Get non-interleaved temporary buffer on specified channel. | |
| void * | user () const |
| Get pointer to user data. | |
| int | channelsIn () const |
| Get effective number of input channels. | |
| int | channelsOut () const |
| Get effective number of output channels. | |
| int | channelsBus () const |
| Get number of allocated bus channels. | |
| int | channelsInDevice () const |
| Get number of channels opened on input device. | |
| int | channelsOutDevice () const |
| Get number of channels opened on output device. | |
| int | framesPerBuffer () const |
| Get frames/buffer of audio I/O stream. | |
| double | framesPerSecond () const |
| Get frames/second of audio I/O streams. | |
| double | secondsPerBuffer () const |
| Get seconds/buffer of audio I/O stream. | |
| double | time () const |
| Get current stream time in seconds. | |
| double | time (int frame) const |
| Get current stream time in seconds of frame. | |
| void | zeroBus () |
| Zeros all the bus buffers. | |
| void | zeroOut () |
| Zeros all the internal output buffers. | |
Public Attributes | |
| audioCallback | callback |
| User specified callback function. | |
Audio input/output streaming.
This is a wrapper around the PortAudio v1.9 library.
| AudioIO | ( | int | framesPerBuf = 64, |
| double | framesPerSec = 44100.0, |
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| void(*)(AudioIOData &) | callback = 0, |
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| void * | userData = 0, |
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| int | outChans = 2, |
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| int | inChans = 0 |
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| ) |
Creates AudioIO using default I/O devices.
| [in] | framesPerBuf | Number of sample frames to process per callback |
| [in] | framesPerSec | Frame rate. Unsupported values will use default rate of device. |
| [in] | callback | Audio processing callback |
| [in] | userData | Pointer to user data accessible within callback |
| [in] | outChans | Number of output channels to open |
| [in] | inChans | Number of input channels to open If the number of input or output channels is greater than the device supports, virtual buffers will be created. |
| void channels | ( | int | num, |
| bool | forOutput | ||
| ) |
Sets number of effective channels on input or output device depending on 'forOutput' flag.
An effective channel is either a real device channel or virtual channel depending on how many channels the device supports. Passing in -1 for the number of channels opens all available channels.
1.8.0