An instance of a filter. More...

#include <avfilter.h>

Data Fields
const AVClass *	av_class
	needed for av_log() and filters common options

const AVFilter *	filter
	the AVFilter of which this is an instance

char *	name
	name of this filter instance

AVFilterPad *	input_pads
	array of input pads

AVFilterLink **	inputs
	array of pointers to input links

unsigned	nb_inputs
	number of input pads

AVFilterPad *	output_pads
	array of output pads

AVFilterLink **	outputs
	array of pointers to output links

unsigned	nb_outputs
	number of output pads

void *	priv
	private data for use by the filter

struct AVFilterGraph *	graph
	filtergraph this filter belongs to

int	thread_type
	Type of multithreading being allowed/used.

AVFilterInternal *	internal
	An opaque struct for libavfilter internal use.

struct AVFilterCommand *	command_queue

char *	enable_str
	enable expression string

void *	enable
	parsed expression (AVExpr*)

double *	var_values
	variable values for the enable expression

int	is_disabled
	the enabled state from the last expression evaluation

Detailed Description

An instance of a filter.

Examples:: doc/examples/filtering_audio.c, and doc/examples/filtering_video.c.

Definition at line 627 of file avfilter.h.

Field Documentation

const AVClass* AVFilterContext::av_class

needed for av_log() and filters common options

Definition at line 628 of file avfilter.h.

Referenced by ff_filter_alloc().

const AVFilter* AVFilterContext::filter

char* AVFilterContext::name

name of this filter instance

Definition at line 632 of file avfilter.h.

Referenced by avfilter_config_links(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_graph_get_filter(), avfilter_graph_queue_command(), avfilter_graph_request_oldest(), avfilter_graph_send_command(), avfilter_insert_filter(), avfilter_link(), avfilter_process_command(), default_filter_name(), ff_filter_alloc(), filter_frame(), filter_query_formats(), graph_check_validity(), init_input_filter(), pick_format(), print_digraph(), and query_formats().

AVFilterPad* AVFilterContext::input_pads

array of input pads

Definition at line 634 of file avfilter.h.

Referenced by avfilter_free(), avfilter_insert_filter(), avfilter_link(), close_input(), config_output(), configure_input_filter(), decimate_uninit(), ff_filter_alloc(), ff_insert_inpad(), fieldmatch_uninit(), free_link(), graph_check_validity(), init_input_filter(), join_uninit(), process_frame(), and uninit().

AVFilterLink** AVFilterContext::inputs

array of pointers to input links

Examples:: doc/examples/filtering_audio.c, and doc/examples/filtering_video.c.

Definition at line 635 of file avfilter.h.

Referenced by apply_unsharp_c(), av_buffersink_get_frame_flags(), av_buffersink_get_frame_rate(), av_buffersink_get_samples(), av_buffersink_poll_frame(), av_buffersink_set_frame_size(), avfilter_config_links(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_insert_filter(), avfilter_link(), blend_frame(), channelmap_query_formats(), check_black_end(), command(), compand_delay(), compand_nodelay(), config_input(), config_input_overlay(), config_input_ref(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), default_query_formats_common(), do_blend(), draw_blank_frame(), draw_text(), ff_avfilter_graph_config_pointers(), ff_dualinput_init(), ff_filter_alloc(), ff_framesync_request_frame(), ff_insert_inpad(), ff_opencl_apply_unsharp(), ff_opencl_deshake_process_inout_buf(), ff_opencl_unsharp_process_inout_buf(), ff_poll_frame(), ff_request_frame(), filter_frame(), filter_query_formats(), formats_declared(), free_link(), get_current_tile_pos(), graph_check_validity(), graph_insert_fifos(), guess_map_any(), guess_map_matching(), init_filters(), join_config_output(), join_query_formats(), join_request_frame(), lavfi_read_header(), lavfi_read_packet(), main(), pick_formats(), push_frame(), query_formats(), read_from_fifo(), reap_filters(), reduce_formats_on_filter(), request_frame(), request_inlink(), request_samples(), return_audio_frame(), select_frame(), send_out(), send_silence(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), swap_samplerates_on_filter(), transcode_init(), and video_thread().

unsigned AVFilterContext::nb_inputs

AVFilterPad* AVFilterContext::output_pads

array of output pads

Definition at line 641 of file avfilter.h.

Referenced by av_buffersrc_add_frame_internal(), avfilter_free(), avfilter_link(), config_output(), configure_output_filter(), ff_filter_alloc(), ff_insert_outpad(), free_link(), graph_check_validity(), init_output_filter(), lavfi_read_header(), movie_uninit(), open_output_file(), split_uninit(), and uninit().

AVFilterLink** AVFilterContext::outputs

array of pointers to output links

Definition at line 642 of file avfilter.h.

Referenced by apply_lut(), av_buffersrc_add_frame_internal(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_insert_filter(), avfilter_link(), blend_frame(), channelmap_filter_frame(), channelmap_query_formats(), compand_delay(), compand_nodelay(), config_output(), config_props(), create_weave_frame(), default_filter_frame(), default_query_formats_common(), end_last_frame(), ff_avfilter_graph_config_pointers(), ff_filter_alloc(), ff_insert_outpad(), ff_null_get_audio_buffer(), ff_null_get_video_buffer(), ff_vf_next_put_image(), filter(), filter_frame(), filter_query_formats(), formats_declared(), free_link(), geq_filter_frame(), get_audio_buffer(), get_video_buffer(), graph_check_validity(), join_query_formats(), main(), movie_push_frame(), movie_query_formats(), pick_formats(), plot_spectrum_column(), pp_filter_frame(), print_digraph(), process_frame(), push_frame(), query_formats(), reduce_formats_on_filter(), request_frame(), return_audio_frame(), return_frame(), send_out(), send_silence(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), and swap_samplerates_on_filter().

unsigned AVFilterContext::nb_outputs

void* AVFilterContext::priv

private data for use by the filter

Definition at line 648 of file avfilter.h.

Referenced by add_buffer_ref(), add_to_queue(), apply_lut(), apply_unsharp_c(), asink_init(), asink_query_formats(), av_buffersink_get_frame_flags(), av_buffersink_get_samples(), av_buffersink_poll_frame(), av_buffersrc_add_frame_internal(), av_buffersrc_get_nb_failed_requests(), avfilter_free(), avfilter_init_dict(), blend_frame(), blend_image(), calc_coefficients(), channelmap_config_input(), channelmap_filter_frame(), channelmap_init(), channelmap_query_formats(), check_black_end(), checkmm(), close_input(), command(), common_init(), compand_delay(), compand_drain(), compand_nodelay(), config_audio_input(), config_audio_output(), config_inprops(), config_input(), config_input_main(), config_input_overlay(), config_input_props(), config_input_ref(), config_out_props(), config_outprops(), config_output(), config_output_props(), config_props(), config_props_input(), config_props_output(), config_video_output(), connect_ports(), create_weave_frame(), decimate_frame(), decimate_init(), decimate_uninit(), deinterlace_plane(), diff_planes(), dilate_end_frame_filter(), dilate_init(), dilate_uninit(), do_blend(), do_psnr(), double_threshold(), draw_blank_frame(), draw_frame(), draw_mandelbrot(), draw_text(), end_last_frame(), erode_end_frame_filter(), eval_expr(), evolve(), expand_text(), ff_filter_alloc(), ff_opencl_apply_unsharp(), ff_opencl_deshake_init(), ff_opencl_deshake_process_inout_buf(), ff_opencl_deshake_uninit(), ff_opencl_transform(), ff_opencl_unsharp_init(), ff_opencl_unsharp_process_inout_buf(), ff_opencl_unsharp_uninit(), fieldmatch_init(), fieldmatch_uninit(), fill_from_cache(), fill_picture(), fill_picture_monoblack(), fill_picture_rgb(), filter(), filter_child_next(), filter_frame(), filter_init(), filter_plane(), filter_slice(), filter_slice_alpha(), filter_slice_chroma(), filter_slice_luma(), find_next_delta_ts(), flush_segment(), frei0r_init(), func_eval_expr(), func_frame_num(), func_metadata(), func_pict_type(), func_pts(), generate_mask(), geq_config_props(), geq_filter_frame(), geq_init(), geq_query_formats(), geq_uninit(), get_best_frame(), get_current_tile_pos(), get_video_buffer(), handle_trimming(), init(), init_audio(), init_dict(), init_pattern_from_file(), init_pattern_from_string(), init_video(), join_config_output(), join_init(), join_query_formats(), join_request_frame(), join_uninit(), load_font(), load_font_file(), load_glyph(), load_sym(), load_textfile(), movie_common_init(), movie_config_output_props(), movie_push_frame(), movie_query_formats(), movie_uninit(), non_maximum_suppression(), output_frame(), parse_3dl(), parse_cube(), parse_dat(), parse_m3d(), parse_maps(), parse_psfile(), plot_spectrum_column(), poll_frame(), pp_config_props(), pp_filter_frame(), pp_init(), pp_process_command(), pp_uninit(), print_stats(), process_command(), process_frame(), process_options(), push_frame(), push_samples(), query_formats(), read_from_fifo(), recv_msg(), request_frame(), request_inlink(), request_samples(), return_audio_frame(), return_frame(), rewind_file(), scale_slice(), select_frame(), send_next(), send_out(), send_silence(), set_control(), set_enable_expr(), set_param(), set_params(), smooth_end_frame_filter(), smooth_init(), sobel(), source_config_props(), source_init(), source_request_frame(), split_init(), super2xsai(), uninit(), vsink_init(), vsink_query_formats(), and yae_set_tempo().

struct AVFilterGraph* AVFilterContext::graph

filtergraph this filter belongs to

Definition at line 650 of file avfilter.h.

Referenced by avfilter_free(), avfilter_graph_alloc_filter(), avfilter_init_dict(), blend_frame(), filter(), filter_frame(), and thread_execute().

int AVFilterContext::thread_type

Type of multithreading being allowed/used.

A combination of AVFILTER_THREAD_* flags.

May be set by the caller before initializing the filter to forbid some or all kinds of multithreading for this filter. The default is allowing everything.

When the filter is initialized, this field is combined using bit AND with AVFilterGraph.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.

After the filter is initialzed, libavfilter sets this field to the threading type that is actually used (0 for no multithreading).

Definition at line 668 of file avfilter.h.

Referenced by avfilter_init_dict().

AVFilterInternal* AVFilterContext::internal

An opaque struct for libavfilter internal use.

Definition at line 673 of file avfilter.h.

Referenced by avfilter_free(), avfilter_init_dict(), blend_frame(), ff_filter_alloc(), filter(), and filter_frame().