AVFilterChannelLayouts Struct Reference

A list of supported channel layouts. More...

#include <formats.h>

Data Fields
uint64_t *	channel_layouts
	list of channel layouts More...
int	nb_channel_layouts
	number of channel layouts More...
char	all_layouts
	accept any known channel layout More...
char	all_counts
	accept any channel layout or count More...
unsigned	refcount
	number of references to this list More...
struct AVFilterChannelLayouts ***	refs
	references to this list More...

Detailed Description

A list of supported channel layouts.

The list works the same as AVFilterFormats, except for the following differences:

• A list with all_layouts = 1 means all channel layouts with a known disposition; nb_channel_layouts must then be 0.
• A list with all_counts = 1 means all channel counts, with a known or unknown disposition; nb_channel_layouts must then be 0 and all_layouts 1.
• The list must not contain a layout with a known disposition and a channel count with unknown disposition with the same number of channels (e.g. AV_CH_LAYOUT_STEREO and FF_COUNT2LAYOUT(2).

Definition at line 85 of file formats.h.

Field Documentation

uint64_t* AVFilterChannelLayouts::channel_layouts

list of channel layouts

Definition at line 86 of file formats.h.

Referenced by channelmap_query_formats(), ff_merge_channel_layouts(), pick_format(), query_formats(), reduce_formats_on_filter(), and swap_channel_layouts_on_filter().

int AVFilterChannelLayouts::nb_channel_layouts

number of channel layouts

Definition at line 87 of file formats.h.

Referenced by ff_merge_channel_layouts(), pick_format(), query_formats(), reduce_formats_on_filter(), sanitize_channel_layouts(), and swap_channel_layouts_on_filter().

char AVFilterChannelLayouts::all_layouts

accept any known channel layout

Definition at line 88 of file formats.h.

Referenced by ff_add_channel_layout(), ff_all_channel_counts(), ff_all_channel_layouts(), ff_merge_channel_layouts(), pick_format(), reduce_formats_on_filter(), and sanitize_channel_layouts().

char AVFilterChannelLayouts::all_counts

accept any channel layout or count

Definition at line 89 of file formats.h.

Referenced by ff_all_channel_counts(), ff_merge_channel_layouts(), pick_format(), reduce_formats_on_filter(), and sanitize_channel_layouts().

unsigned AVFilterChannelLayouts::refcount

number of references to this list

Definition at line 91 of file formats.h.

Referenced by query_formats().

struct AVFilterChannelLayouts*** AVFilterChannelLayouts::refs

references to this list

Definition at line 92 of file formats.h.

Referenced by ff_merge_channel_layouts().

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The documentation for this struct was generated from the following file:

• libavfilter/formats.h