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#include “cinder/audio/Source.h”

Typedefs:

SourceRef

Class Hierarchy:

cinder::Noncopyable
cinder::audio::Source

Related Links:

Audio in Cinder

Base class that is used to load and read from an audio source.

Public Member Functions

~Source ()
size_t

getSampleRate () const

Returns the user facing samplerate (output).
size_t

getNumChannels () const =0

Returns the number of channels.
size_t

getSampleRateNative () const =0

Returns the true samplerate of the Source .

Actual output samplerate may differ.

See Also

getSampleRate()
size_t

getMaxFramesPerRead () const

Returns the maximum number of frames that can be read with one call to read() .
void

setMaxFramesPerRead (size_t count)

Sets the maximum number of frames that can be read in one chunk.
size_t

read (Buffer *buffer)=0

Loads either as many frames as buffer can hold, or as many as there are left.

number of frames read into buffer .
std::string

getMetaData () const

Returns the metadata, if any, as a string.

Protected Member Functions

Source (size_t sampleRate)
size_t

performRead (Buffer *buffer, size_t bufferFrameOffset, size_t numFramesNeeded)=0

Implement to perform read of frames into buffer starting at offset bufferFrameOffset

the actual number of frames read.
bool

supportsConversion ()

Implementations should override and return true if they can provide samplerate conversion. If false (default), a Converter will be used if needed.
void

setSampleRate (size_t sampleRate)

Allows implementations to set the output samplerate.

Protected Attributes

std::unique_ptr< dsp::Converter >

mConverter
BufferDynamic

mConverterReadBuffer