audiere::Resampler Class Reference

#include <resampler.h>

Inheritance diagram for audiere::Resampler:

[legend]Collaboration diagram for audiere::Resampler:

[legend]List of all members.

Public Member Functions
	Resampler (SampleSource *source, int rate)
void	getFormat (int &channel_count, int &sample_rate, SampleFormat &sample_format)
int	read (int frame_count, void *buffer)
void	reset ()
bool	isSeekable ()
int	getLength ()
void	setPosition (int position)
int	getPosition ()
bool	getRepeat ()
void	setRepeat (bool repeat)
int	getTagCount ()
const char *	getTagKey (int i)
const char *	getTagValue (int i)
const char *	getTagType (int i)
void	setPitchShift (float shift)
float	getPitchShift ()

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Detailed Description

Definition at line 14 of file resampler.h.

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Constructor & Destructor Documentation

audiere::Resampler::Resampler (  SampleSource *  source, int  rate )

Definition at line 6 of file resampler.cpp.

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Member Function Documentation

void audiere::Resampler::getFormat (  int &  channel_count, int &  sample_rate, SampleFormat &  sample_format )  [virtual]

Retrieve the number of channels, sample rate, and sample format of the sample source. Implements audiere::SampleSource. Definition at line 21 of file resampler.cpp. References audiere::SF_S16.

int audiere::Resampler::getLength (   )  [virtual]

Returns: number of frames in the stream, or 0 if the stream is not seekable Implements audiere::SampleSource. Definition at line 162 of file resampler.cpp.

float audiere::Resampler::getPitchShift (   )

Definition at line 205 of file resampler.cpp.

int audiere::Resampler::getPosition (   )  [virtual]

Returns the current position within the sample source. Returns: current position in frames Implements audiere::SampleSource. Definition at line 174 of file resampler.cpp. References audiere::DUMB_RESAMPLER::pos.

bool audiere::Resampler::getRepeat (   )  [virtual]

Returns: true if the sample source is set to repeat Implements audiere::SampleSource. Definition at line 184 of file resampler.cpp.

int audiere::Resampler::getTagCount (   )  [virtual]

Returns number of metadata tags present in this sample source. Implements audiere::SampleSource. Definition at line 194 of file resampler.cpp.

const char * audiere::Resampler::getTagKey (  int  i  )  [virtual]

Returns the key of the i'th tag in the source. If the tag is "author=me", the key is "author". Implements audiere::SampleSource. Definition at line 195 of file resampler.cpp.

const char * audiere::Resampler::getTagType (  int  i  )  [virtual]

Returns the type of the i'th tag in the source. The type is where the tag comes from, i.e. "ID3v1", "ID3v2", or "vorbis". Implements audiere::SampleSource. Definition at line 197 of file resampler.cpp.

const char * audiere::Resampler::getTagValue (  int  i  )  [virtual]

Returns the value of the i'th tag in the source. If the tag is "author=me", the value is "me". Implements audiere::SampleSource. Definition at line 196 of file resampler.cpp.

bool audiere::Resampler::isSeekable (   )  [virtual]

Returns: true if the stream is seekable, false otherwise Implements audiere::SampleSource. Definition at line 157 of file resampler.cpp.

int audiere::Resampler::read (  int  frame_count, void *  buffer )  [virtual]

Read frame_count samples into buffer. buffer must be at least |frame_count * GetSampleSize(format) * channel_count| bytes long. Parameters: frame_count  number of frames to read buffer  buffer to store samples in Returns: number of frames actually read Implements audiere::SampleSource. Definition at line 32 of file resampler.cpp. References ADR_ASSERT, audiere::clamp(), audiere::DUMB_RESAMPLER::dir, audiere::dumb_resample(), audiere::DUMB_RESAMPLER::end, audiere::DUMB_RESAMPLER::pos, audiere::DUMB_RESAMPLER::start, and audiere::DUMB_RESAMPLER::subpos.

void audiere::Resampler::reset (   )  [virtual]

Reset the sample source. This has the same effect as setPosition(0) on a seekable source. On an unseekable source, it resets all internal state to the way it was when the source was first created. Implements audiere::SampleSource. Definition at line 81 of file resampler.cpp.

void audiere::Resampler::setPitchShift (  float  shift  )

Definition at line 200 of file resampler.cpp.

void audiere::Resampler::setPosition (  int  position  )  [virtual]

Sets the current position within the sample source. If the stream is not seekable, this method does nothing. Parameters: position  current position in frames Implements audiere::SampleSource. Definition at line 167 of file resampler.cpp.

void audiere::Resampler::setRepeat (  bool  repeat  )  [virtual]

Todo: if we've already read to the end, do we try to read more? Implements audiere::SampleSource. Definition at line 189 of file resampler.cpp.

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

• resampler.h
• resampler.cpp

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