An instance of a filter. More...

#include <avfilter.h>

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

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

char *	name
	name of this filter instance More...

AVFilterPad *	input_pads
	array of input pads More...

AVFilterLink **	inputs
	array of pointers to input links More...

unsigned	nb_inputs
	number of input pads More...

AVFilterPad *	output_pads
	array of output pads More...

AVFilterLink **	outputs
	array of pointers to output links More...

unsigned	nb_outputs
	number of output pads More...

void *	priv
	private data for use by the filter More...

struct AVFilterGraph *	graph
	filtergraph this filter belongs to More...

int	thread_type
	Type of multithreading being allowed/used. More...

AVFilterInternal *	internal
	An opaque struct for libavfilter internal use. More...

AVBufferRef *	hw_device_ctx
	For filters which will create hardware frames, sets the device the filter should create them in. More...

struct AVFilterCommand *	command_queue

char *	enable_str
	enable expression string More...

void *	enable
	parsed expression (AVExpr*) More...

double *	var_values
	variable values for the enable expression More...

int	is_disabled
	the enabled state from the last expression evaluation More...

Detailed Description

An instance of a filter.

Examples:: filter_audio.c, filtering_audio.c, filtering_video.c, and transcoding.c.

Definition at line 305 of file avfilter.h.

Field Documentation

const AVClass* AVFilterContext::av_class

needed for av_log() and filters common options

Definition at line 306 of file avfilter.h.

Referenced by ff_filter_alloc().

const AVFilter* AVFilterContext::filter

char* AVFilterContext::name

name of this filter instance

Definition at line 310 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(), query_formats(), and uninit().

AVFilterPad* AVFilterContext::input_pads

array of input pads

Definition at line 312 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(), main(), process_frame(), and uninit().

AVFilterLink** AVFilterContext::inputs

array of pointers to input links

Examples:: filtering_audio.c, and filtering_video.c.

Definition at line 313 of file avfilter.h.

Referenced by aeval_config_output(), aeval_query_formats(), apply_unsharp_c(), av_buffersink_get_frame_flags(), av_buffersink_get_frame_rate(), av_buffersink_get_samples(), 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(), config_props_ref(), config_video(), create_sink(), cudaupload_config_output(), cudaupload_query_formats(), default_query_formats_common(), do_blend(), do_video_out(), draw_blank_frame(), draw_text(), 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_to_filter(), filter_color(), filter_color2(), filter_frame(), filter_mono(), filter_query_formats(), flush_frame(), formats_declared(), free_link(), generate_kernel(), get_current_tile_pos(), get_speaker_pos(), graph_check_validity(), graph_config_pointers(), graph_insert_fifos(), guess_map_any(), guess_map_matching(), hwdownload_config_output(), hwdownload_query_formats(), hwupload_config_output(), hwupload_query_formats(), init_cqt(), init_filters(), init_output_stream(), init_processing_chain(), join_config_output(), join_query_formats(), join_request_frame(), lavfi_read_header(), lavfi_read_packet(), load_apply_palette(), load_data(), main(), nppscale_config_props(), pick_formats(), process_command(), process_frame(), push_frame(), push_single_pic(), query_formats(), read_fft_data(), read_from_fifo(), reap_filters(), reduce_formats_on_filter(), request_frame(), request_frame_ref(), request_inlink(), request_samples(), return_audio_frame(), scale_vaapi_query_formats(), select_frame(), send_silence(), set_work_frame_pts(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), swap_samplerates_on_filter(), transcode_init(), and video_thread().

unsigned AVFilterContext::nb_inputs

number of input pads

Definition at line 314 of file avfilter.h.

Referenced by avfilter_config_links(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_graph_parse_ptr(), avfilter_link(), config_output(), decimate_uninit(), ff_filter_alloc(), ff_insert_inpad(), ff_poll_frame(), fieldmatch_uninit(), filter_frame(), filter_query_formats(), flush_segment(), formats_declared(), graph_check_validity(), graph_config_pointers(), graph_insert_fifos(), guess_map_any(), guess_map_matching(), init(), join_config_output(), join_query_formats(), join_request_frame(), join_uninit(), link_filter_inouts(), main(), parse_mapping(), pick_formats(), process_frame(), push_frame(), query_formats(), reduce_formats_on_filter(), request_frame(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), swap_samplerates_on_filter(), try_push_frame(), and uninit().

AVFilterPad* AVFilterContext::output_pads

array of output pads

Definition at line 316 of file avfilter.h.

Referenced by av_buffersrc_add_frame_internal(), avfilter_free(), avfilter_link(), config_output(), configure_output_filter(), create_sink(), ff_filter_alloc(), ff_insert_outpad(), free_link(), graph_check_validity(), init_complex_filtergraph(), main(), movie_uninit(), split_uninit(), and uninit().

AVFilterLink** AVFilterContext::outputs

array of pointers to output links

Definition at line 317 of file avfilter.h.

Referenced by aeval_query_formats(), apply_lut(), apply_palette(), av_buffersrc_add_frame_internal(), avfilter_free(), avfilter_graph_dump_to_buf(), avfilter_insert_filter(), avfilter_link(), blend_frame(), blend_frames16(), blend_frames8(), calc_persp_luts(), channelmap_filter_frame(), channelmap_query_formats(), compand_delay(), compand_nodelay(), config_output(), create_weave_frame(), cudaupload_filter_frame(), cudaupload_query_formats(), default_filter_frame(), default_query_formats_common(), draw_background(), end_last_frame(), ff_filter_alloc(), ff_filter_graph_remove_filter(), ff_insert_outpad(), ff_null_get_audio_buffer(), ff_null_get_video_buffer(), filter(), filter_color(), filter_color2(), filter_frame(), filter_frame_ref(), filter_mono(), filter_query_formats(), formats_declared(), free_link(), geq_filter_frame(), get_audio_buffer(), get_frame(), get_palette_frame(), get_video_buffer(), graph_check_validity(), graph_config_pointers(), graph_run_once_find_filter(), hwdownload_filter_frame(), hwdownload_query_formats(), hwupload_filter_frame(), hwupload_query_formats(), init_processing_chain(), join_query_formats(), main(), movie_push_frame(), movie_query_formats(), nppscale_filter_frame(), output_single_frame(), pick_formats(), plot_cqt(), plot_freqs(), plot_spectrum_column(), pp_filter_frame(), print_digraph(), process_command(), process_frame(), process_work_frame(), push_frame(), query_formats(), query_formats_src(), reduce_formats_on_filter(), request_frame(), request_samples(), return_audio_frame(), return_frame(), scale_vaapi_filter_frame(), scale_vaapi_query_formats(), send_silence(), shuffleplanes_filter_frame(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), swap_samplerates_on_filter(), and try_push_frame().

unsigned AVFilterContext::nb_outputs

void* AVFilterContext::priv

private data for use by the filter

Definition at line 320 of file avfilter.h.

Referenced by add_buffer_ref(), add_to_queue(), aeval_config_output(), aeval_query_formats(), agate_config_input(), apply_lut(), apply_palette(), apply_unsharp_c(), asink_init(), asink_query_formats(), av_buffersink_get_frame_flags(), av_buffersink_get_samples(), av_buffersrc_add_frame_internal(), av_buffersrc_get_nb_failed_requests(), av_buffersrc_parameters_set(), avfilter_free(), avfilter_init_dict(), blend_frame(), blend_frames16(), blend_frames8(), blend_image(), calc_coefficients(), calc_persp_luts(), 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(), compensate_volume(), compressor_config_output(), compute_sat_hue_metrics(), config_audio_input(), config_audio_output(), config_input(), config_input_main(), config_input_overlay(), config_input_props(), config_input_ref(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_input(), config_props_output(), config_video(), config_video_output(), connect_ports(), convert(), create_filtergraph(), create_weave_frame(), cudaupload_config_output(), cudaupload_filter_frame(), cudaupload_init(), cudaupload_uninit(), deband_16_c(), deband_8_c(), decimate_frame(), decimate_init(), decimate_uninit(), deinterlace_slice(), dejudder_init(), dejudder_uninit(), diff_planes(), dilate_end_frame_filter(), dilate_init(), dilate_uninit(), do_blend(), do_chromakey_slice(), do_colorkey_slice(), do_psnr(), do_ssim(), draw_background(), draw_blank_frame(), draw_curves(), draw_frame(), draw_mandelbrot(), draw_text(), end_last_frame(), entry_func(), erode_end_frame_filter(), eval_expr(), evolve(), 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_brng(), filter_child_next(), filter_color(), filter_color2(), filter_frame(), filter_frame_left(), filter_frame_magnitude(), filter_frame_phase(), filter_frame_right(), filter_init(), filter_mono(), filter_rgb24(), filter_rgb48(), filter_rgba(), filter_rgba64(), filter_slice(), filter_slice16(), filter_slice8(), filter_slice_alpha(), filter_slice_chroma(), filter_slice_luma(), filter_slice_rgb(), filter_tout(), filter_vrep(), filter_xyz(), find_next_delta_ts(), flush_frame(), flush_segment(), framepack_uninit(), frei0r_init(), func_eval_expr(), func_eval_expr_int_format(), func_frame_num(), func_metadata(), func_pict_type(), func_pts(), gain_interpolate_func(), generate_kernel(), generate_mask(), geq_config_props(), geq_filter_frame(), geq_init(), geq_query_formats(), geq_uninit(), get_aspect_ratio(), get_best_frame(), get_current_tile_pos(), get_frame(), get_palette_frame(), get_scene_score(), get_scene_score16(), get_speaker_pos(), get_video_buffer(), handle_trimming(), horizontal_frame_pack(), hwdownload_config_input(), hwdownload_config_output(), hwdownload_filter_frame(), hwdownload_uninit(), hwupload_config_output(), hwupload_filter_frame(), hwupload_query_formats(), hwupload_uninit(), init(), init_audio(), init_dict(), init_pattern_from_file(), init_pattern_from_string(), init_processing_chain(), init_src(), init_video(), initialize(), initialize_chromakey(), join_config_output(), join_init(), join_query_formats(), join_request_frame(), join_uninit(), load_apply_palette(), load_data(), load_font(), load_font_file(), load_glyph(), load_sofa(), load_sym(), load_textfile(), movie_common_init(), movie_config_output_props(), movie_push_frame(), movie_query_formats(), movie_uninit(), next_source(), nppscale_config_props(), nppscale_filter_frame(), nppscale_init(), nppscale_resize(), nppscale_scale(), nppscale_uninit(), output_frame(), output_single_frame(), parse_3dl(), parse_channel_expressions(), parse_cube(), parse_dat(), parse_m3d(), parse_mapping(), parse_maps(), parse_psfile(), parse_speaker_pos(), plot_cqt(), plot_freqs(), plot_spectrum_column(), poll_frame(), pp_config_props(), pp_filter_frame(), pp_init(), pp_process_command(), pp_uninit(), print_file(), print_stats(), process_command(), process_frame(), process_options(), process_work_frame(), push_frame(), push_samples(), push_single_pic(), query_formats(), read_fft_data(), read_from_fifo(), recv_msg(), request_frame(), request_inlink(), request_samples(), resample_cubic(), resample_linear(), return_audio_frame(), return_frame(), rewind_file(), scale_slice(), scale_vaapi_config_input(), scale_vaapi_config_output(), scale_vaapi_filter_frame(), scale_vaapi_init(), scale_vaapi_uninit(), select_frame(), selective_color(), send_silence(), set_control(), set_enable_expr(), set_param(), set_params(), set_srce_frame_dest_pts(), set_volume(), set_work_frame_pts(), shuffleplanes_config_input(), shuffleplanes_filter_frame(), smooth_end_frame_filter(), smooth_init(), sofalizer_convolute(), sofalizer_fast_convolute(), source_config_props(), source_init(), source_request_frame(), spatial_frame_pack(), split_init(), super2xsai(), synth_window(), try_push_frame(), try_push_frames(), uninit(), vertical_frame_pack(), vsink_init(), vsink_query_formats(), write_palette(), and yae_set_tempo().

struct AVFilterGraph* AVFilterContext::graph

filtergraph this filter belongs to

Definition at line 322 of file avfilter.h.

Referenced by apply_lut(), av_buffersink_get_frame_flags(), avfilter_free(), avfilter_graph_alloc_filter(), avfilter_init_dict(), blend_frame(), config_input(), config_props(), ff_filter_graph_remove_filter(), 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 initialized, libavfilter sets this field to the threading type that is actually used (0 for no multithreading).

Definition at line 340 of file avfilter.h.

Referenced by avfilter_init_dict().

AVFilterInternal* AVFilterContext::internal

An opaque struct for libavfilter internal use.

Definition at line 345 of file avfilter.h.

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

AVBufferRef* AVFilterContext::hw_device_ctx

For filters which will create hardware frames, sets the device the filter should create them in.

All other filters will ignore this field: in particular, a filter which consumes or processes hardware frames will instead use the hw_frames_ctx field in AVFilterLink to carry the hardware context information.

Definition at line 354 of file avfilter.h.

Referenced by avfilter_free(), configure_filtergraph(), and hwupload_query_formats().

struct AVFilterCommand* AVFilterContext::command_queue

Definition at line 356 of file avfilter.h.

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

char* AVFilterContext::enable_str

enable expression string

Definition at line 358 of file avfilter.h.

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

void* AVFilterContext::enable

parsed expression (AVExpr*)

Definition at line 359 of file avfilter.h.