AVFilter

Filter definition. This defines the pads a filter contains, and all the callback functions used to interact with the filter.

@nogc nothrow extern (C)

struct AVFilter {

char* description;

AVFilterPad* inputs;

AVFilterPad* outputs;

AVClass* priv_class;

int function(AVFilterContext* ctx) init;

int function(AVFilterContext* ctx, AVDictionary** options) init_dict;

void function(AVFilterContext* ctx) uninit;

int function(AVFilterContext*) query_formats;

int priv_size;

AVFilter* next;

int function(AVFilterContext*, const char* cmd, const char* arg, char* res, int res_len, int flags) process_command;

int function(AVFilterContext* ctx, void* opaque) init_opaque;

}

Members

Variables

description char* description;: A description of the filter. May be NULL.
flags int flags;: A combination of AVFILTER_FLAG_*
init int function(AVFilterContext* ctx) init;: Filter initialization function.
init_dict
int function(AVFilterContext* ctx, AVDictionary** options) init_dict;: Should be set instead of @ref AVFilter.init "init" by the filters that want to pass a dictionary of AVOptions to nested contexts that are allocated during init.
init_opaque int function(AVFilterContext* ctx, void* opaque) init_opaque;: Filter initialization function, alternative to the init() callback. Args contains the user-supplied parameters, opaque is used for providing binary data.
inputs AVFilterPad* inputs;: List of inputs, terminated by a zeroed element.
name char* name;: Filter name. Must be non-NULL and unique among filters.
next AVFilter* next;: Used by the filter registration system. Must not be touched by any other code.
outputs AVFilterPad* outputs;: List of outputs, terminated by a zeroed element.
priv_class AVClass* priv_class;: A class for the private data, used to declare filter private AVOptions. This field is NULL for filters that do not declare any options.
priv_size int priv_size;: < size of private data to allocate for the filter
process_command int function(AVFilterContext*, const char* cmd, const char* arg, char* res, int res_len, int flags) process_command;: Make the filter instance process a command.
query_formats int function(AVFilterContext*) query_formats;: Query formats supported by the filter on its inputs and outputs.
uninit void function(AVFilterContext* ctx) uninit;: Filter uninitialization function.

Meta

Source

See Implementation

ffmpeg libavfilter avfilter aliases

enums

AVFILTER_AUTO_CONVERT_ALL

functions

manifest constants

structs

variables