chorus_flanger.c File Reference

Include dependency graph for chorus_flanger.c:

Data Structures
struct	filter_sys_t
	filter_sys_t: chroma method descriptor More...
Functions
static int	Open (vlc_object_t *)
	Basic chorus/flanger/delay audio filter This implements a variable delay filter for VLC.
static void	Close (vlc_object_t *p_this)
	Close: Destructor.
static block_t *	DoWork (filter_t *p_filter, block_t *p_in_buf)
	DoWork : delays and finds the value of the current frame.
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
static float	small_value ()
	small_value: Helper function return high pass cutoff
static void	sanitize (float *f_value)
	sanitize: Helper function to eliminate small amplitudes

---

Function Documentation

static void Close

(

vlc_object_t *

p_this

)

[static]

Close: Destructor.

Parameters:

p_this

pointer to this filter object

Close the module.

Destroys the X11 window.

Disconnect from the X server.

Close a SDL video output.

It destroys an OpenGL vout display.

Terminate a vout display created by Open.

It destroyes a Direct3D vout display.

Terminate an output method created by Open.

Release the drawable.

Close a libcaca video output.

Close a aa video output method.

Close the filter.

Terminate a splitter module.

This function closes a clone video splitter module.

Common close function.

Releases allocate resources.

Close: Destructor.

Parameters:

	p_this	pointer to this filter object
	p_this,:	the filter object

static block_t * DoWork	(	filter_t *	p_filter,
		block_t *	p_in_buf
	)			[static]

DoWork : delays and finds the value of the current frame.

Parameters:

	p_filter	This filter object
	p_in_buf	Input buffer

Returns:

Output buffer

References filter_sys_t::f_dryLevel, filter_sys_t::f_feedbackGain, filter_sys_t::f_offset, filter_sys_t::f_step, filter_sys_t::f_sweepDepth, filter_sys_t::f_sweepRate, filter_sys_t::f_temp, filter_sys_t::f_wetLevel, i, filter_sys_t::i_bufferLength, filter_sys_t::i_channels, block_t::i_nb_samples, filter_sys_t::i_offset, filter_sys_t::i_sampleRate, filter_sys_t::i_step, block_t::p_buffer, filter_t::p_sys, filter_sys_t::pf_delayLineEnd, filter_sys_t::pf_delayLineStart, filter_sys_t::pf_write, and sanitize().

static int Open

(

vlc_object_t *

p_this

)

[static]

Basic chorus/flanger/delay audio filter This implements a variable delay filter for VLC.

Open: initialize and create stuff.

It has some issues with interpolation and sounding 'correct'.

Parameters:

p_this

Basic chorus/flanger/delay audio filter This implements a variable delay filter for VLC.

Todo:

• Improve CDDB support (non-blocking, cache, .

Open the module.

Create an X11 window.

Probe the X server.

This function initializes SDL vout method.

It creates an OpenGL vout display.

This function allocates and initialize the DirectX vout display.

It creates a Direct3D vout display.

This function allocates and initializes a FB vout method.

Find the drawable set by libvlc application.

This function initializes libcaca vout method.

This function allocates and initializes a aa vout method.

This function allocates and initializes a Wall splitter module.

Open the filter.

This function allocates and initializes a Clone splitter module.

Open: initialize and create stuff.

Connect to the sftp server and ask for a file.

Parameters:

p_this,:

the vlc_object

Returns:

VLC_SUCCESS if everything was fine

Parameters:

	p_this
	p_this,:	the filter object

Returns:

VLC_SUCCESS or vlc error codes

Todo:

Reinstate meta codec name

static void sanitize

(

float *

f_value

)

[inline, static]

sanitize: Helper function to eliminate small amplitudes

Parameters:

f_value

pointer to value to clean

References small_value().

Referenced by DoWork().

static float small_value

(

)

[inline, static]

small_value: Helper function return high pass cutoff

Referenced by sanitize().

int vlc_entry__main

(

module_t *

p_module

)

const char* vlc_entry_license__main

(

void

)