libavfilter/formats.h File Reference

#include "avfilter.h"

Go to the source code of this file.

Data Structures
struct	AVFilterChannelLayouts
Functions
AVFilterChannelLayouts *	ff_merge_channel_layouts (AVFilterChannelLayouts *a, AVFilterChannelLayouts *b)
	Return a channel layouts/samplerates list which contains the intersection of the layouts/samplerates of a and b.
AVFilterFormats *	ff_merge_samplerates (AVFilterFormats *a, AVFilterFormats *b)
AVFilterChannelLayouts *	ff_all_channel_layouts (void)
	Construct an empty AVFilterChannelLayouts/AVFilterFormats struct -- representing any channel layout/sample rate.
AVFilterFormats *	ff_all_samplerates (void)
AVFilterChannelLayouts *	avfilter_make_format64_list (const int64_t *fmts)
void	ff_set_common_channel_layouts (AVFilterContext *ctx, AVFilterChannelLayouts *layouts)
	A helper for query_formats() which sets all links to the same list of channel layouts/sample rates.
void	ff_set_common_samplerates (AVFilterContext *ctx, AVFilterFormats *samplerates)
int	ff_add_channel_layout (AVFilterChannelLayouts **l, uint64_t channel_layout)
void	ff_channel_layouts_ref (AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
	Add *ref as a new reference to f.
void	ff_channel_layouts_unref (AVFilterChannelLayouts **ref)
	Remove a reference to a channel layouts list.
void	ff_channel_layouts_changeref (AVFilterChannelLayouts **oldref, AVFilterChannelLayouts **newref)
int	ff_default_query_formats (AVFilterContext *ctx)

---

Function Documentation

AVFilterChannelLayouts* avfilter_make_format64_list

(

const int64_t *

fmts

)

Definition at line 225 of file formats.c.

Referenced by query_formats().

int ff_add_channel_layout	(	AVFilterChannelLayouts **	l,
		uint64_t	channel_layout
	)

Definition at line 258 of file formats.c.

Referenced by init(), query_formats(), and reduce_formats_on_filter().

AVFilterChannelLayouts* ff_all_channel_layouts

(

void

)

Construct an empty AVFilterChannelLayouts/AVFilterFormats struct -- representing any channel layout/sample rate.

Definition at line 314 of file formats.c.

Referenced by ff_default_query_formats(), and query_formats().

AVFilterFormats* ff_all_samplerates

(

void

)

Definition at line 308 of file formats.c.

Referenced by ff_default_query_formats(), and query_formats().

void ff_channel_layouts_changeref	(	AVFilterChannelLayouts **	oldref,
		AVFilterChannelLayouts **	newref
	)

Definition at line 391 of file formats.c.

Referenced by avfilter_insert_filter().

void ff_channel_layouts_ref	(	AVFilterChannelLayouts *	f,
		AVFilterChannelLayouts **	ref
	)

Add *ref as a new reference to f.

Definition at line 327 of file formats.c.

Referenced by ff_set_common_channel_layouts(), and query_formats().

void ff_channel_layouts_unref

(

AVFilterChannelLayouts **

ref

)

Remove a reference to a channel layouts list.

Definition at line 373 of file formats.c.

Referenced by avfilter_free(), and pick_format().

int ff_default_query_formats

(

AVFilterContext *

ctx

)

Definition at line 452 of file formats.c.

Referenced by avfilter_default_query_formats(), main(), and query_formats().

AVFilterChannelLayouts* ff_merge_channel_layouts	(	AVFilterChannelLayouts *	a,
		AVFilterChannelLayouts *	b
	)

Return a channel layouts/samplerates list which contains the intersection of the layouts/samplerates of a and b.

Also, all the references of a, all the references of b, and a and b themselves will be deallocated.

If a and b do not share any common elements, neither is modified, and NULL is returned.

Definition at line 134 of file formats.c.

Referenced by insert_conv_filter(), and query_formats().

AVFilterFormats* ff_merge_samplerates	(	AVFilterFormats *	a,
		AVFilterFormats *	b
	)

Definition at line 107 of file formats.c.

Referenced by query_formats().

void ff_set_common_channel_layouts	(	AVFilterContext *	ctx,
		AVFilterChannelLayouts *	layouts
	)

A helper for query_formats() which sets all links to the same list of channel layouts/sample rates.

If there are no links hooked to this filter, the list is freed.

Definition at line 427 of file formats.c.

Referenced by ff_default_query_formats(), and query_formats().

void ff_set_common_samplerates	(	AVFilterContext *	ctx,
		AVFilterFormats *	samplerates
	)

Definition at line 434 of file formats.c.

Referenced by ff_default_query_formats(), and query_formats().