mono.c File Reference

Include dependency graph for mono.c:


Data Structures
struct	atomic_operation_t
struct	filter_sys_t
	filter_sys_t: chroma method descriptor More...
Defines
#define	MONO_DOWNMIX_TEXT N_("Use downmix algorithm")
#define	MONO_DOWNMIX_LONGTEXT
#define	MONO_CHANNEL_TEXT N_("Select channel to keep")
#define	MONO_CHANNEL_LONGTEXT
#define	MONO_CFG "sout-mono-"
Functions
static int	OpenFilter (vlc_object_t *)
static void	CloseFilter (vlc_object_t *)
static block_t *	Convert (filter_t p_filter, block_t p_block)
static unsigned int	stereo_to_mono (aout_filter_t , aout_buffer_t , aout_buffer_t *)
static unsigned int	mono (aout_filter_t , aout_buffer_t , aout_buffer_t *)
static void	stereo2mono_downmix (aout_filter_t , aout_buffer_t , aout_buffer_t *)
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
static void	ComputeChannelOperations (struct filter_sys_t *p_data, unsigned int i_rate, unsigned int i_next_atomic_operation, int i_source_channel_offset, double d_x, double d_z, double d_compensation_length, double d_channel_amplitude_factor)
static int	Init (vlc_object_t p_this, struct filter_sys_t p_data, unsigned int i_nb_channels, uint32_t i_physical_channels, unsigned int i_rate)
Variables
static const int	pi_pos_values [] = { 0, 1, 2, 4, 8, 5 }
static const char *const	ppsz_pos_descriptions []
static const uint32_t	pi_channels_out []

Define Documentation

#define MONO_CFG "sout-mono-"

Referenced by CloseFilter(), and OpenFilter().

#define MONO_CHANNEL_LONGTEXT

Value:

N_("This option silences all other channels " \
    "except the selected channel. Choose one from (0=left, 1=right, " \
    "2=rear left, 3=rear right, 4=center, 5=left front)")

#define MONO_CHANNEL_TEXT N_("Select channel to keep")

#define MONO_DOWNMIX_LONGTEXT

Value:

N_("This option selects a stereo to mono " \
    "downmix algorithm that is used in the headphone channel mixer. It " \
    "gives the effect of standing in a room full of speakers." )

#define MONO_DOWNMIX_TEXT N_("Use downmix algorithm")

Function Documentation

static void CloseFilter ( vlc_object_t * p_this ) [static]

References MONO_CFG, filter_sys_t::p_atomic_operations, filter_sys_t::p_overflow_buffer, filter_t::p_sys, p_sys, and var_Destroy.

static void ComputeChannelOperations	(	struct filter_sys_t *	p_data,
		unsigned int	i_rate,
		unsigned int	i_next_atomic_operation,
		int	i_source_channel_offset,
		double	d_x,
		double	d_z,
		double	d_compensation_length,
		double	d_channel_amplitude_factor
	)			`[static]`

static block_t * Convert	(	filter_t *	p_filter,
		block_t *	p_block
	)			`[static]`

static int Init	(	vlc_object_t *	p_this,
		struct filter_sys_t *	p_data,
		unsigned int	i_nb_channels,
		uint32_t	i_physical_channels,
		unsigned int	i_rate
	)			`[static]`

References AOUT_CHAN_CENTER, AOUT_CHAN_LEFT, AOUT_CHAN_LFE, AOUT_CHAN_MIDDLELEFT, AOUT_CHAN_MIDDLERIGHT, AOUT_CHAN_REARCENTER, AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT, AOUT_CHAN_RIGHT, ComputeChannelOperations(), i, atomic_operation_t::i_delay, filter_sys_t::i_nb_atomic_operations, filter_sys_t::i_overflow_buffer_size, atomic_operation_t::i_source_channel_offset, filter_sys_t::p_atomic_operations, filter_sys_t::p_overflow_buffer, and var_InheritInteger.

static unsigned int mono	(	aout_filter_t *	p_filter,
		aout_buffer_t *	p_output,
		aout_buffer_t *	p_input
	)			`[static]`

References filter_sys_t::i_nb_channels, block_t::i_nb_samples, block_t::p_buffer, aout_filter_t::p_sys, and p_sys.

Referenced by Convert().

static int OpenFilter ( vlc_object_t * p_this ) [static]

static void stereo2mono_downmix	(	aout_filter_t *	p_filter,
		aout_buffer_t *	p_in_buf,
		aout_buffer_t *	p_out_buf
	)			`[static]`

References aout_FormatNbChannels(), es_format_t::audio, atomic_operation_t::d_amplitude_factor, aout_filter_t::fmt_in, aout_filter_t::fmt_out, i, block_t::i_buffer, atomic_operation_t::i_delay, atomic_operation_t::i_dest_channel_offset, filter_sys_t::i_nb_atomic_operations, block_t::i_nb_samples, filter_sys_t::i_overflow_buffer_size, atomic_operation_t::i_source_channel_offset, filter_sys_t::p_atomic_operations, block_t::p_buffer, filter_sys_t::p_overflow_buffer, aout_filter_t::p_sys, and p_sys.

Referenced by Convert().

static unsigned int stereo_to_mono	(	aout_filter_t *	p_filter,
		aout_buffer_t *	p_output,
		aout_buffer_t *	p_input
	)			`[static]`

References filter_sys_t::i_channel_selected, filter_sys_t::i_nb_channels, block_t::i_nb_samples, block_t::p_buffer, aout_filter_t::p_sys, and p_sys.

Referenced by Convert().

int vlc_entry__main ( module_t * p_module )

const char* vlc_entry_license__main ( void )

Variable Documentation

const uint32_t pi_channels_out[] [static]

Initial value:

{  0x2 ,  0x4 ,  0x20 ,  0x40 ,
   0x1 ,  0x1000 , 0 }

Referenced by CreateDSBuffer(), and OpenWaveOut().

const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5 } [static]

const char* const ppsz_pos_descriptions[] [static]

Initial value:

{ N_("Left"), N_("Right"), N_("Left rear"), N_("Right rear"), N_("Center"),
  N_("Left front") }

mono.c File Reference

Data Structures

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation