CVorbisEncoder Class Reference

List of all members.

Public Member Functions
TInt	PageOutL (CMMFDataBuffer &aBuf)
void	PcmInL (const CMMFDataBuffer &aBuf)
void	Reset ()
TInt	BitRateL ()
void	SetBitRateL (TInt aBitRate)
void	InitializeVorbisStreamL ()
void	ConfigureL (TInt aSampleRate, TInt aChannels)
void	ConvertBitRateToQuality (TInt aBitRate, TReal32 &aQuality)
Static Public Member Functions
static CVorbisEncoder *	NewL ()

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Detailed Description

Definition at line 40 of file VorbisEncoder.h.

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Member Function Documentation

TInt CVorbisEncoder::PageOutL

(

CMMFDataBuffer &

aDst

)

This method tries to frame an oggpage out of the pcm data in the vorbis analysis buffer and writes it into the destination buffer aDst..

Parameters:

aDst

The buffer in which the oggpage is to be placed.

Returns:

The length of the encoded data written into aDst.

Definition at line 120 of file VorbisEncoder.cpp.

void CVorbisEncoder::PcmInL

(

const CMMFDataBuffer &

aBuf

)

This method takes raw data as an input and puts into the vorbis analysis buffer which is owned by the libvorbis. It also updates libvorbis with how many bytes of PCM is written into the buffer.

Parameters:

aBuf

The Source buffer with PCM data

Definition at line 56 of file VorbisEncoder.cpp.

void CVorbisEncoder::InitializeVorbisStreamL

(

)

This method initializes the vorbis stream depending on the configuration set on the encoder and prepares the header packets using PrepareHeadersL().

Returns:

Any Systemwide error code.

Definition at line 246 of file VorbisEncoder.cpp.

void CVorbisEncoder::ConfigureL	(	TInt	aSampleRate,
		TInt	aChannels
	)

This method sets the samplerate and channels on the encoder and initializes the vorbis stream.

Returns:

Any Systemwide error code.

Definition at line 270 of file VorbisEncoder.cpp.

void CVorbisEncoder::ConvertBitRateToQuality	(	TInt	aBitRate,
		TReal32 &	aQuality
	)

This method selects the quality corresponding to the bitrate.

Parameters:

	aBitRate	The Bitrate(input)
	aQuality(output)	The quality corresponding to the aBitRate

Definition at line 299 of file VorbisEncoder.cpp.