decoder_impl Class Reference

Detailed Description

Definition at line 56 of file el_processor.cpp.


Public Member Functions
	decoder_impl (unsigned blocksize=8192)
	~decoder_impl ()
float **	getInputBuffers ()
float **	getOutputBuffers ()
void	decode (float center_width, float dimension, float adaption_rate)
void	flush ()
void	sample_rate (unsigned int srate)
void	surround_coefficients (float a, float b)
void	surround_gain (float gain)
void	phase_mode (unsigned mode)
void	steering_mode (bool mode)
void	separation (float front, float rear)
Private Member Functions
void	add_output (float input1[2], float input2[2], float center_width, float dimension, float adaption_rate, bool result=false)
void	block_decode (float input1[2], float input2[2], float *output[6], float center_width, float dimension, float adaption_rate)
double	get_yfs (double ampDiff, double phaseDiff)
double	get_xfs (double ampDiff, double yfs)
void	apply_filter (cfloat signal, float flt, float *target)
void	ff_fft_permuteRC (FFTContext s, FFTSample r, FFTComplex *z)
	* Do the permutation needed BEFORE calling ff_fft_calc() special for freesurround that also copies
void	ff_fft_permuteCR (FFTContext s, FFTComplex z, FFTSample *r)
	* Do the permutation needed BEFORE calling ff_fft_calc() special for freesurround that also copies and discards im component as it should be 0
Static Private Member Functions
static float	amplitude (const float cf[2])
static float	phase (const float cf[2])
static cfloat	polar (float a, float p)
static float	sqr (float x)
static float	min (float a, float b)
static float	max (float a, float b)
static float	clamp (float x)
Private Attributes
unsigned int	N
unsigned int	halfN
float *	lt
float *	rt
float *	dst
fftwf_complex *	dftL
fftwf_complex *	dftR
fftwf_complex *	src
fftwf_plan	loadL
fftwf_plan	loadR
fftwf_plan	store
FFTContext *	fftContextForward
FFTContext *	fftContextReverse
FFTSample *	lt
FFTSample *	rt
FFTComplexArray *	dftL
FFTComplexArray *	dftR
FFTComplexArray *	src
std::vector< cfloat >	frontL
std::vector< cfloat >	frontR
std::vector< cfloat >	avg
std::vector< cfloat >	surL
std::vector< cfloat >	surR
std::vector< cfloat >	trueavg
std::vector< float >	xfs
std::vector< float >	yfs
std::vector< float >	wnd
std::vector< float >	filter [6]
std::vector< float >	inbuf [2]
std::vector< float >	outbuf [6]
float	surround_high
float	surround_low
float	surround_balance
float	surround_level
float	master_gain
float	phase_offsetL
float	phase_offsetR
float	front_separation
float	rear_separation
bool	linear_steering
cfloat	A
cfloat	B
cfloat	C
cfloat	D
cfloat	E
cfloat	F
cfloat	G
cfloat	H
int	current_buf
float *	inbufs [2]
float *	outbufs [6]
Friends
class	fsurround_decoder

Constructor & Destructor Documentation

decoder_impl::decoder_impl ( unsigned blocksize = 8192 ) [inline]

Definition at line 60 of file el_processor.cpp.

decoder_impl::~decoder_impl ( ) [inline]

Definition at line 123 of file el_processor.cpp.

Member Function Documentation

float** decoder_impl::getInputBuffers ( ) [inline]

Definition at line 148 of file el_processor.cpp.

Referenced by fsurround_decoder::getInputBuffers().

float** decoder_impl::getOutputBuffers ( ) [inline]

Definition at line 155 of file el_processor.cpp.

Referenced by fsurround_decoder::getOutputBuffers().

void decoder_impl::decode	(	float	center_width,
		float	dimension,
		float	adaption_rate
	)			`[inline]`

Definition at line 170 of file el_processor.cpp.

Referenced by fsurround_decoder::decode().

void decoder_impl::flush ( ) [inline]

Definition at line 183 of file el_processor.cpp.

Referenced by fsurround_decoder::flush().

void decoder_impl::sample_rate ( unsigned int srate ) [inline]

Definition at line 193 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::sample_rate().

void decoder_impl::surround_coefficients	(	float	a,
		float	b
	)			`[inline]`

Definition at line 205 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::surround_coefficients().

void decoder_impl::surround_gain ( float gain ) [inline]

Definition at line 217 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::gain().

void decoder_impl::phase_mode ( unsigned mode ) [inline]

Definition at line 224 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::phase_mode().

void decoder_impl::steering_mode ( bool mode ) [inline]

Definition at line 231 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::steering_mode().

void decoder_impl::separation	(	float	front,
		float	rear
	)			`[inline]`

Definition at line 234 of file el_processor.cpp.

Referenced by decoder_impl(), and fsurround_decoder::separation().

static float decoder_impl::amplitude ( const float cf[2] ) [inline, static, private]

Definition at line 241 of file el_processor.cpp.

Referenced by block_decode().

static float decoder_impl::phase ( const float cf[2] ) [inline, static, private]

Definition at line 242 of file el_processor.cpp.

Referenced by block_decode().

static cfloat decoder_impl::polar	(	float	a,
		float	p
	)			`[inline, static, private]`

Definition at line 243 of file el_processor.cpp.

Referenced by block_decode().

static float decoder_impl::sqr ( float x ) [inline, static, private]

Definition at line 244 of file el_processor.cpp.

Referenced by get_yfs().

static float decoder_impl::min	(	float	a,
		float	b
	)			`[inline, static, private]`

Definition at line 246 of file el_processor.cpp.

Referenced by block_decode(), and clamp().

static float decoder_impl::max	(	float	a,
		float	b
	)			`[inline, static, private]`

Definition at line 247 of file el_processor.cpp.

Referenced by block_decode(), and clamp().

static float decoder_impl::clamp ( float x ) [inline, static, private]

Definition at line 248 of file el_processor.cpp.

Referenced by block_decode().

void decoder_impl::add_output	(	float *	input1[2],
		float *	input2[2],
		float	center_width,
		float	dimension,
		float	adaption_rate,
		bool	result = `false`
	)			`[inline, private]`

Definition at line 251 of file el_processor.cpp.

Referenced by decode().

void decoder_impl::block_decode	(	float *	input1[2],
		float *	input2[2],
		float *	output[6],
		float	center_width,
		float	dimension,
		float	adaption_rate
	)			`[inline, private]`