switchboard::WavDecoder Class Reference

Decodes WAV data to Linear PCM audio data. More...

#include <WavDecoder.hpp>

Public Member Functions
	WavDecoder (const std::string &path)
	WavDecoder constructor for decoding WAV from file path.
	~WavDecoder ()
const uint	getSampleRate () const
	Gets the sample rate of the audio.
const uint	getNumberOfChannels () const
	Gets the number of channels of the audio.
const uint	getNumberOfFrames () const
	Gets the number of frames of the audio.
const bool	read (float *outputBuffer, const uint frameIndex, const uint numberOfFrames)
	Gets the next available chunk of audio.

Static Public Member Functions
static bool	decode (const std::vector< uint8 > &inputData, std::vector< float > &outputData, uint &sampleRate, uint &numberOfChannels)
	Decodes input WAV byte data to Linear PCM data.

Detailed Description

Decodes WAV data to Linear PCM audio data.

WavDecoder class.

Constructor & Destructor Documentation

WavDecoder()

switchboard::WavDecoder::WavDecoder

(

const std::string &

path

)

WavDecoder constructor for decoding WAV from file path.

This constructor throws std::runtime_error if loading the audio file fails.

Parameters

path	The path the audio file to load.

~WavDecoder()

switchboard::WavDecoder::~WavDecoder ( )

default

WavDecoder destructor.

Member Function Documentation

decode()

bool switchboard::WavDecoder::decode ( const std::vector< uint8 > & inputData, std::vector< float > & outputData, uint & sampleRate, uint & numberOfChannels )

static

Decodes input WAV byte data to Linear PCM data.

Parameters

inputData	The vector that contains the WAV byte data.
outputData	The vector that will contain the decoded PCM data.
sampleRate	In-out parameter that will contain the decoded WAV data sample rate.
numberOfChannels	In-out parameter that will contain the decoded WAV data number of channels.

Returns

True if decoding was successful, false otherwise.

getNumberOfChannels()

const uint switchboard::WavDecoder::getNumberOfChannels

(

)

const

Gets the number of channels of the audio.

Returns

The number of channels of the audio.

getNumberOfFrames()

const uint switchboard::WavDecoder::getNumberOfFrames

(

)

const

Gets the number of frames of the audio.

Returns

The number of frames of the audio.

getSampleRate()

const uint switchboard::WavDecoder::getSampleRate

(

)

const

Gets the sample rate of the audio.

Returns

The sample rate of the audio.

read()

const bool switchboard::WavDecoder::read	(	float *	outputBuffer,
		const uint	frameIndex,
		const uint	numberOfFrames )

Gets the next available chunk of audio.

Returns false in case the frame index overflows.

Pads the end with zeros if there is not enough frames to read.

Parameters

outputBuffer	The buffer that will contain the output samples.
frameIndex	Reading starts at this frame index.
numberOfFrames	The number of frames to put in the output buffer.

Returns

True if reading from decoded audio was successful, false otherwise.