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AU_DEVOUT(3) BSD Library Functions Manual AU_DEVOUT(3) NAME AU_DevOut -- agar audio output interface SYNOPSIS #include <agar/au.h> DESCRIPTION The AU_DevOut interface provides basic audio output functionality, using different drivers to interface with different audio systems. INTERFACE AU_DevOut * AU_OpenOut(const char *path, int rate, int channels) void AU_CloseOut(AU_DevOut *dev) int AU_AddChannel(AU_DevOut *dev) int AU_DelChannel(AU_DevOut *dev, int channel) void AU_WriteFloat(AU_DevOut *dev, float *data, size_t frames) The AU_OpenOut() function opens the specified output device. The path argument should contain the name of the output driver, with optional ar- guments in round brackets. For example, `pa' opens the PortAudio output driver, if available. The `file(foo.wav)' argument specifies the "file" driver with an output filename argument. The rate argument is the re- quested sampling rate in Hz, and channels is the requested number of channels (if the device is unable to handle those settings, the call will fail). On success, a device handle is returned. AU_CloseOut() closes the specified output device. Every output device has an associated set of virtual channels, which is independent from the number of channels supported by the underlying de- vice (software mixing is done if necessary). The AU_AddChannel() func- tion adds a new virtual channel to the given output device. AU_DelChannel() deletes the specified channel. The AU_WriteFloat() routine writes one or more frames to the output de- vice. A single frame should contain one float per channel. SEE ALSO AU(3), AU_Wave(3) HISTORY The AU(3) library and the AU_DevOut interface first appeared in Agar 1.5.0. BSD April 21, 2014 BSD
NAME | SYNOPSIS | DESCRIPTION | INTERFACE | SEE ALSO | HISTORY
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