FFmpeg: AVFilterContext Struct Reference

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

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 546 of file avfilter.h.

Field Documentation

const AVClass* AVFilterContext::av_class

needed for av_log() and filters common options

Definition at line 547 of file avfilter.h.

Referenced by ff_filter_alloc().

struct AVFilterCommand* AVFilterContext::command_queue

Definition at line 571 of file avfilter.h.

Referenced by avfilter_free(), avfilter_graph_queue_command(), ff_command_queue_pop(), and ff_filter_frame_framed().

void* AVFilterContext::enable

parsed expression (AVExpr*)

Definition at line 574 of file avfilter.h.

Referenced by avfilter_free(), ff_filter_frame_framed(), and set_enable_expr().

char* AVFilterContext::enable_str

enable expression string

Definition at line 573 of file avfilter.h.

Referenced by ff_filter_frame_framed(), process_options(), and set_enable_expr().

const AVFilter* AVFilterContext::filter

struct AVFilterGraph* AVFilterContext::graph

filtergraph this filter belongs to

Definition at line 569 of file avfilter.h.

Referenced by avfilter_free(), and avfilter_graph_alloc_filter().

AVFilterPad* AVFilterContext::input_pads

array of input pads

Definition at line 553 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(), 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 554 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(), config_input(), config_input_overlay(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), default_query_formats_common(), draw_blank_frame(), draw_text(), ff_avfilter_graph_config_pointers(), ff_filter_alloc(), 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(), 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(), try_filter_frame(), and video_thread().

int AVFilterContext::is_disabled

the enabled state from the last expression evaluation

Definition at line 576 of file avfilter.h.

Referenced by ff_filter_frame_framed(), filter_frame(), request_frame(), and try_filter_frame().

char* AVFilterContext::name

name of this filter instance

Definition at line 551 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().

unsigned AVFilterContext::nb_inputs

unsigned AVFilterContext::nb_outputs

AVFilterPad* AVFilterContext::output_pads

array of output pads

Definition at line 560 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(), 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 561 of file avfilter.h.

Referenced by av_buffersrc_add_frame_internal(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_insert_filter(), avfilter_link(), channelmap_filter_frame(), channelmap_query_formats(), 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_frame(), filter_query_formats(), formats_declared(), 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(), 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(), swap_samplerates_on_filter(), and try_filter_frame().

void* AVFilterContext::priv

private data for use by the filter

Definition at line 567 of file avfilter.h.

Referenced by add_buffer_ref(), add_to_queue(), 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(), config_audio_input(), config_audio_output(), config_inprops(), config_input(), config_input_main(), config_input_overlay(), config_input_props(), config_out_props(), config_outprops(), config_output(), config_output_props(), config_props(), config_props_input(), config_props_output(), config_video_output(), create_weave_frame(), decimate_frame(), decimate_init(), decimate_uninit(), diff_planes(), dilate_end_frame_filter(), dilate_init(), dilate_uninit(), 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_frame_main(), filter_frame_over(), filter_init(), filter_plane(), find_next_delta_ts(), flush_segment(), frei0r_init(), func_eval_expr(), func_frame_num(), 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_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_enable_expr(), set_param(), set_params(), smooth_end_frame_filter(), smooth_init(), sobel(), source_config_props(), source_init(), source_request_frame(), split_init(), super2xsai(), try_filter_frame(), try_filter_next_frame(), uninit(), vsink_init(), vsink_query_formats(), and yae_set_tempo().

double* AVFilterContext::var_values

variable values for the enable expression

Definition at line 575 of file avfilter.h.

Referenced by avfilter_free(), ff_filter_frame_framed(), and set_enable_expr().

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

libavfilter/avfilter.h