Include dependency graph for filters.c:

Data Structures
struct	aout_filters

Macros
#define	AOUT_MAX_FILTERS 10

Functions
static filter_t *	CreateFilter (vlc_object_t obj, const char type, const char name, filter_owner_sys_t owner, const audio_sample_format_t infmt, const audio_sample_format_t outfmt, config_chain_t *cfg, bool const_fmt)

static filter_t *	FindConverter (vlc_object_t obj, const audio_sample_format_t infmt, const audio_sample_format_t *outfmt)

static filter_t *	FindResampler (vlc_object_t obj, const audio_sample_format_t infmt, const audio_sample_format_t *outfmt)

static void	aout_FiltersPipelineDestroy (filter_t const filters, unsigned n)
	Destroys a chain of audio filters. More...

static filter_t *	TryFormat (vlc_object_t obj, vlc_fourcc_t codec, audio_sample_format_t restrict fmt)

static int	aout_FiltersPipelineCreate (vlc_object_t obj, filter_t filters, unsigned count, unsigned max, const audio_sample_format_t restrict infmt, const audio_sample_format_t restrict outfmt, bool headphones)
	Allocates audio format conversion filters. More...

static block_t *	aout_FiltersPipelinePlay (filter_t const filters, unsigned count, block_t *block)
	Filters an audio buffer through a chain of filters. More...

static block_t *	aout_FiltersPipelineDrain (filter_t const filters, unsigned count)
	Drain the chain of filters. More...

static void	aout_FiltersPipelineFlush (filter_t const filters, unsigned count)
	Flush the chain of filters. More...

static void	aout_FiltersPipelineChangeViewpoint (filter_t const filters, unsigned count, const vlc_viewpoint_t *vp)

static int	VisualizationCallback (vlc_object_t obj, const char var, vlc_value_t oldval, vlc_value_t newval, void *data)
	Callback for visualization selection. More...

vout_thread_t *	aout_filter_RequestVout (filter_t filter, vout_thread_t vout, const video_format_t *fmt)

static int	AppendFilter (vlc_object_t obj, const char type, const char name, aout_filters_t restrict filters, const void owner, audio_sample_format_t restrict infmt, const audio_sample_format_t restrict outfmt, config_chain_t cfg)

static int	AppendRemapFilter (vlc_object_t obj, aout_filters_t restrict filters, audio_sample_format_t restrict infmt, const audio_sample_format_t restrict outfmt, const int *wg4_remap)

aout_filters_t *	aout_FiltersNew (vlc_object_t obj, const audio_sample_format_t restrict infmt, const audio_sample_format_t restrict outfmt, const aout_request_vout_t request_vout, const aout_filters_cfg_t *cfg)
	Sets a chain of audio filters up. More...

void	aout_FiltersDelete (vlc_object_t obj, aout_filters_t filters)
	Destroys a chain of audio filters. More...

bool	aout_FiltersCanResample (aout_filters_t *filters)

bool	aout_FiltersAdjustResampling (aout_filters_t *filters, int adjust)

block_t *	aout_FiltersPlay (aout_filters_t filters, block_t block, int rate)

block_t *	aout_FiltersDrain (aout_filters_t *filters)

void	aout_FiltersFlush (aout_filters_t *filters)

void	aout_FiltersChangeViewpoint (aout_filters_t filters, const vlc_viewpoint_t vp)

Macro Definition Documentation

◆ AOUT_MAX_FILTERS

#define AOUT_MAX_FILTERS 10

Function Documentation

◆ aout_FiltersCanResample()

bool aout_FiltersCanResample ( aout_filters_t * filters )

References aout_filters::resampler.

Referenced by aout_DecSynchronize().

◆ aout_FiltersNew()

aout_filters_t* aout_FiltersNew	(	vlc_object_t *	obj,
		const audio_sample_format_t *restrict	infmt,
		const audio_sample_format_t *restrict	outfmt,
		const aout_request_vout_t *	request_vout,
		const aout_filters_cfg_t *	cfg
	)

Sets a chain of audio filters up.

Parameters

obj	parent object for the filters
infmt	chain input format [IN]
outfmt	chain output format [IN]
request_vout	visualization video output request callback
cfg	a valid aout_filters_cfg_t struct or NULL.

Returns: a filters chain or NULL on failure

Note: *request_vout (if not NULL) must remain valid until aout_FiltersDelete().

Bug:: If request_vout is non NULL, obj is assumed to be an audio_output_t pointer.

References aout_FiltersPipelineCreate(), aout_FiltersPipelineDestroy(), AOUT_FMT_LINEAR, AOUT_FMTS_IDENTICAL, aout_FormatNbChannels(), aout_FormatPrepare(), aout_FormatPrint, aout_FormatsPrint, AOUT_MAX_FILTERS, aout_SetWavePhysicalChannels(), AppendFilter(), AppendRemapFilter(), AUDIO_CHANNEL_TYPE_BITMAP, audio_format_t::channel_type, aout_filters::count, FindConverter(), FindResampler(), aout_filters_cfg_t::headphones, audio_format_t::i_channels, audio_format_t::i_rate, msg_Err, msg_Info, msg_Warn, name, p, aout_filters::rate_filter, aout_filters_cfg_t::remap, aout_filters::resampler, aout_filters::resampling, strcasecmp(), strsep(), aout_filters::tab, unlikely, var_AddCallback, var_DelCallback, var_InheritBool, var_InheritString, and VisualizationCallback().

◆ aout_FiltersPipelineChangeViewpoint()

static void aout_FiltersPipelineChangeViewpoint	(	filter_t const	filters,
		unsigned	count,
		const vlc_viewpoint_t *	vp
	)

static

References count, and filter_ChangeViewpoint().

Referenced by aout_FiltersChangeViewpoint().

◆ aout_FiltersPipelineCreate()

static int aout_FiltersPipelineCreate	(	vlc_object_t *	obj,
		filter_t **	filters,
		unsigned *	count,
		unsigned	max,
		const audio_sample_format_t *restrict	infmt,
		const audio_sample_format_t *restrict	outfmt,
		bool	headphones
	)

static

Allocates audio format conversion filters.

Parameters

obj	parent VLC object for new filters
filters	table of filters [IN/OUT]
count	pointer to the number of filters in the table [IN/OUT]
max	size of filters table [IN]
infmt	input audio format
outfmt	output audio format

Returns: 0 on success, -1 on failure

References _, aout_FiltersPipelineDestroy(), AOUT_FMT_LINEAR, aout_FormatPrepare(), aout_FormatsPrint, audio_format_t::channel_type, config_ChainDestroy(), config_ChainParseOptions(), count, CreateFilter(), FindConverter(), audio_format_t::i_chan_mode, audio_format_t::i_format, audio_format_t::i_physical_channels, audio_format_t::i_rate, msg_Dbg, msg_Err, TryFormat(), VLC_CODEC_FL32, and vlc_dialog_display_error.

Referenced by aout_FiltersNew(), and AppendFilter().

◆ aout_FiltersPipelineDestroy()

static void aout_FiltersPipelineDestroy	(	filter_t const	filters,
		unsigned	n
	)

static

Destroys a chain of audio filters.

References module_unneed, filter_t::p_module, and vlc_object_release.

Referenced by aout_FiltersDelete(), aout_FiltersNew(), and aout_FiltersPipelineCreate().

◆ aout_FiltersPipelineDrain()

static block_t* aout_FiltersPipelineDrain	(	filter_t const	filters,
		unsigned	count
	)

static

Drain the chain of filters.

References aout_FiltersPipelinePlay(), block_ChainAppend(), block_ChainGather(), count, and filter_DrainAudio().

Referenced by aout_FiltersDrain().

◆ aout_FiltersPipelineFlush()

static void aout_FiltersPipelineFlush	(	filter_t const	filters,
		unsigned	count
	)

static

Flush the chain of filters.

References count, and filter_Flush().

Referenced by aout_FiltersFlush().

◆ aout_FiltersPipelinePlay()

static block_t* aout_FiltersPipelinePlay	(	filter_t const	filters,
		unsigned	count,
		block_t *	block
	)

static

Filters an audio buffer through a chain of filters.

References count, and filter_t::pf_audio_filter.

Referenced by aout_FiltersDrain(), aout_FiltersPipelineDrain(), and aout_FiltersPlay().

◆ AppendFilter()

static int AppendFilter	(	vlc_object_t *	obj,
		const char *	type,
		const char *	name,
		aout_filters_t *restrict	filters,
		const void *	owner,
		audio_sample_format_t *restrict	infmt,
		const audio_sample_format_t *restrict	outfmt,
		config_chain_t *	cfg
	)

static

References aout_FiltersPipelineCreate(), es_format_t::audio, CreateFilter(), filter_t::fmt_in, filter_t::fmt_out, module_unneed, msg_Err, name, filter_t::p_module, and vlc_object_release.

Referenced by aout_FiltersNew(), and AppendRemapFilter().

◆ AppendRemapFilter()

static int AppendRemapFilter	(	vlc_object_t *	obj,
		aout_filters_t *restrict	filters,
		audio_sample_format_t *restrict	infmt,
		const audio_sample_format_t *restrict	outfmt,
		const int *	wg4_remap
	)

static

References AOUT_CHAN_MAX, AppendFilter(), asprintf(), config_ChainCreate(), config_ChainDestroy(), and name.

Referenced by aout_FiltersNew().

◆ CreateFilter()

static filter_t* CreateFilter	(	vlc_object_t *	obj,
		const char *	type,
		const char *	name,
		filter_owner_sys_t *	owner,
		const audio_sample_format_t *	infmt,
		const audio_sample_format_t *	outfmt,
		config_chain_t *	cfg,
		bool	const_fmt
	)