FFmpeg
Data Fields
AVFilterGraph Struct Reference

#include <avfilter.h>

Data Fields

const AVClassav_class
 
AVFilterContext ** filters
 
unsigned nb_filters
 
char * scale_sws_opts
 sws options to use for the auto-inserted scale filters More...
 
int thread_type
 Type of multithreading allowed for filters in this graph. More...
 
int nb_threads
 Maximum number of threads used by filters in this graph. More...
 
AVFilterGraphInternalinternal
 Opaque object for libavfilter internal use. More...
 
void * opaque
 Opaque user data. More...
 
avfilter_execute_funcexecute
 This callback may be set by the caller immediately after allocating the graph and before adding any filters to it, to provide a custom multithreading implementation. More...
 
char * aresample_swr_opts
 swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions More...
 

Detailed Description

Examples
decode_filter_audio.c, decode_filter_video.c, filter_audio.c, and transcode.c.

Definition at line 830 of file avfilter.h.

Field Documentation

◆ av_class

const AVClass* AVFilterGraph::av_class

Definition at line 831 of file avfilter.h.

◆ filters

AVFilterContext** AVFilterGraph::filters

◆ nb_filters

unsigned AVFilterGraph::nb_filters

◆ scale_sws_opts

char* AVFilterGraph::scale_sws_opts

sws options to use for the auto-inserted scale filters

Definition at line 835 of file avfilter.h.

Referenced by avfilter_graph_segment_create_filters(), configure_filtergraph(), and configure_video_filters().

◆ thread_type

int AVFilterGraph::thread_type

Type of multithreading allowed for filters in this graph.

A combination of AVFILTER_THREAD_* flags.

May be set by the caller at any point, the setting will apply to all filters initialized after that. The default is allowing everything.

When a filter in this graph is initialized, this field is combined using bit AND with AVFilterContext.thread_type to get the final mask used for determining allowed threading types. I.e. a threading type needs to be set in both to be allowed.

Definition at line 849 of file avfilter.h.

Referenced by avfilter_graph_alloc_filter(), and ff_graph_thread_init().

◆ nb_threads

int AVFilterGraph::nb_threads

Maximum number of threads used by filters in this graph.

May be set by the caller before adding any filters to the filtergraph. Zero (the default) means that the number of threads is determined automatically.

Definition at line 856 of file avfilter.h.

Referenced by configure_filtergraph(), ff_graph_thread_init(), fg_create(), and video_thread().

◆ internal

AVFilterGraphInternal* AVFilterGraph::internal

Opaque object for libavfilter internal use.

Definition at line 861 of file avfilter.h.

◆ opaque

void* AVFilterGraph::opaque

Opaque user data.

May be set by the caller to an arbitrary value, e.g. to be used from callbacks like AVFilterGraph::execute. Libavfilter will not touch this field in any way.

Definition at line 868 of file avfilter.h.

◆ execute

avfilter_execute_func* AVFilterGraph::execute

This callback may be set by the caller immediately after allocating the graph and before adding any filters to it, to provide a custom multithreading implementation.

If set, filters with slice threading capability will call this callback to execute multiple jobs in parallel.

If this field is left unset, libavfilter will use its internal implementation, which may or may not be multithreaded depending on the platform and build options.

Definition at line 882 of file avfilter.h.

Referenced by avfilter_graph_alloc_filter().

◆ aresample_swr_opts

char* AVFilterGraph::aresample_swr_opts

swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions

Definition at line 884 of file avfilter.h.


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