MIPAlsaOutput Class Reference

An Advanced Linux Sound Architecture (ALSA) soundcard output component. More...

#include <mipalsaoutput.h>

Inheritance diagram for MIPAlsaOutput:

Collaboration diagram for MIPAlsaOutput:

List of all members.

Public Member Functions
bool	open (int sampRate, int channels, const std::string device=std::string("plughw:0,0"), MIPTime blockTime=MIPTime(0.020), MIPTime arrayTime=MIPTime(10.0), bool floatSamples=true)
	Opens the soundcard device.
bool	close ()
	Closes the soundcard device.

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Detailed Description

This component uses the Advanced Linux Sound Architecture (ALSA) system to provide soundcard output functions. The component accepts floating point raw audio messages or signed 16 bit integer encoded raw audio messages and does not generate any messages itself.

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Member Function Documentation

bool MIPAlsaOutput::close

(

)

This function closes the previously opened soundcard device.

bool MIPAlsaOutput::open	(	int	sampRate,
		int	channels,
		const std::string	device = std::string("plughw:0,0"),
		MIPTime	blockTime = MIPTime(0.020),
		MIPTime	arrayTime = MIPTime(10.0),
		bool	floatSamples = true
	)

With this function, the soundcard output component opens and initializes the soundcard device.

Parameters:

sampRate	The sampling rate.
channels	The number of channels.
device	The name of the device to open.
blockTime	Audio data with a length corresponding to this parameter is sent to the soundcard device during each iteration.
arrayTime	The amount of memory allocated to internal buffers, specified as a time interval. Note that this does not correspond to the amount of buffering introduced by this component.
floatSamples	Flag indicating if floating point samples or integer samples should be used.

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The documentation for this class was generated from the following file:

• src/components/output/mipalsaoutput.h