avfilter_internal.h File Reference

#include <stdint.h>
#include "avfilter.h"
#include "filters.h"
#include "framequeue.h"

Go to the source code of this file.

Data Structures
struct	FilterLinkInternal
struct	FFFilterContext
struct	AVFilterCommand
struct	FFFilterGraph

Macros
#define	FF_TPRINTF_START(ctx, func)   ff_tlog(NULL, "%-16s: ", #func)
#define	ff_tlog_link(ctx, link, end)   do { } while(0)

Functions
static FilterLinkInternal *	ff_link_internal (AVFilterLink *link)
static FFFilterContext *	fffilterctx (AVFilterContext *ctx)
static FFFilterGraph *	fffiltergraph (AVFilterGraph *graph)
void	ff_avfilter_graph_update_heap (AVFilterGraph *graph, struct FilterLinkInternal *li)
	Update the position of a link in the age heap. More...
AVFilterContext *	ff_filter_alloc (const AVFilter *filter, const char *inst_name)
	Allocate a new filter context and return it. More...
void	ff_filter_graph_remove_filter (AVFilterGraph *graph, AVFilterContext *filter)
	Remove a filter from a graph;. More...
int	ff_filter_activate (AVFilterContext *filter)
int	ff_filter_opt_parse (void *logctx, const AVClass *priv_class, AVDictionary **options, const char *args)
	Parse filter options into a dictionary. More...
int	ff_graph_thread_init (FFFilterGraph *graph)
void	ff_graph_thread_free (FFFilterGraph *graph)
int	ff_filter_config_links (AVFilterContext *filter)
	Negotiate the media format, dimensions, etc of all inputs to a filter. More...
int	ff_filter_graph_run_once (AVFilterGraph *graph)
	Run one round of processing on a filter graph. More...
int	ff_inlink_process_commands (AVFilterLink *link, const AVFrame *frame)
	Process the commands queued in the link up to the time of the frame. More...
int	ff_inlink_evaluate_timeline_at_frame (AVFilterLink *link, const AVFrame *frame)
	Evaluate the timeline expression of the link for the time and properties of the frame. More...

Macro Definition Documentation

FF_TPRINTF_START

#define FF_TPRINTF_START	(		ctx,
			func
	)		ff_tlog(NULL, "%-16s: ", #func)

Definition at line 192 of file avfilter_internal.h.

ff_tlog_link

#define ff_tlog_link	(		ctx,
			link,
			end
	)		do { } while(0)

Definition at line 197 of file avfilter_internal.h.

Function Documentation

ff_link_internal()

static FilterLinkInternal* ff_link_internal ( AVFilterLink *  link )

inlinestatic

Definition at line 90 of file avfilter_internal.h.

Referenced by activate(), ff_avfilter_link_set_in_status(), ff_default_get_audio_buffer(), ff_default_get_video_buffer2(), ff_filter_activate_default(), ff_filter_config_links(), ff_filter_frame(), ff_filter_frame_to_filter(), ff_inlink_acknowledge_status(), ff_inlink_check_available_frame(), ff_inlink_check_available_samples(), ff_inlink_consume_frame(), ff_inlink_consume_samples(), ff_inlink_peek_frame(), ff_inlink_queued_frames(), ff_inlink_queued_samples(), ff_inlink_request_frame(), ff_inlink_set_status(), ff_inoutlink_check_flow(), ff_outlink_frame_wanted(), ff_outlink_get_status(), ff_request_frame(), ff_request_frame_to_filter(), filter_unblock(), forward_status_change(), get_frame_internal(), graph_config_pointers(), guess_status_pts(), link_free(), and link_set_out_status().

fffilterctx()

static FFFilterContext* fffilterctx ( AVFilterContext *  ctx )

inlinestatic

Definition at line 108 of file avfilter_internal.h.

Referenced by avfilter_graph_segment_init(), avfilter_init_dict(), avfilter_link(), and ff_filter_execute().

fffiltergraph()

static FFFilterGraph* fffiltergraph ( AVFilterGraph *  graph )

inlinestatic

Definition at line 137 of file avfilter_internal.h.

Referenced by avfilter_graph_alloc_filter(), avfilter_graph_free(), avfilter_graph_request_oldest(), avfilter_graph_set_auto_convert(), avfilter_init_dict(), avfilter_link(), ff_avfilter_graph_update_heap(), graph_config_pointers(), query_formats(), and thread_execute().

ff_avfilter_graph_update_heap()

void ff_avfilter_graph_update_heap	(	AVFilterGraph *	graph,
		struct FilterLinkInternal *	li
	)

Update the position of a link in the age heap.

Definition at line 1416 of file avfiltergraph.c.

Referenced by update_link_current_pts().

ff_filter_alloc()

AVFilterContext* ff_filter_alloc	(	const AVFilter *	filter,
		const char *	inst_name
	)

Allocate a new filter context and return it.

Parameters

filter	what filter to create an instance of
inst_name	name to give to the new filter context

Returns

newly created filter context or NULL on failure

Definition at line 694 of file avfilter.c.

Referenced by avfilter_graph_alloc_filter().

ff_filter_graph_remove_filter()

void ff_filter_graph_remove_filter	(	AVFilterGraph *	graph,
		AVFilterContext *	filter
	)

Remove a filter from a graph;.

Definition at line 99 of file avfiltergraph.c.

Referenced by avfilter_free().

ff_filter_activate()

int ff_filter_activate

(

AVFilterContext *

filter

)

Definition at line 1383 of file avfilter.c.

Referenced by ff_filter_graph_run_once().

ff_filter_opt_parse()

int ff_filter_opt_parse	(	void *	logctx,
		const AVClass *	priv_class,
		AVDictionary **	options,
		const char *	args
	)

Parse filter options into a dictionary.

Parameters

logctx	context for logging
priv_class	a filter's private class for shorthand options or NULL
options	dictionary to store parsed options in
args	options string to parse

Returns

a non-negative number on success, a negative error code on failure

Definition at line 841 of file avfilter.c.

Referenced by avfilter_init_str(), and filter_parse().

ff_graph_thread_init()

int ff_graph_thread_init

(

FFFilterGraph *

graph

)

Definition at line 75 of file avfiltergraph.c.

Referenced by avfilter_graph_alloc_filter().

ff_graph_thread_free()

void ff_graph_thread_free

(

FFFilterGraph *

graph

)

Definition at line 71 of file avfiltergraph.c.

Referenced by avfilter_graph_free().

ff_filter_config_links()

int ff_filter_config_links

(

AVFilterContext *

filter

)

Negotiate the media format, dimensions, etc of all inputs to a filter.

Parameters

filter

the filter to negotiate the properties for its inputs

Returns

zero on successful negotiation

Definition at line 332 of file avfilter.c.

Referenced by ff_filter_config_links(), and graph_config_links().

ff_filter_graph_run_once()

int ff_filter_graph_run_once

(

AVFilterGraph *

graph

)

Run one round of processing on a filter graph.

Definition at line 1471 of file avfiltergraph.c.

Referenced by avfilter_graph_request_oldest(), get_frame_internal(), and push_frame().

ff_inlink_process_commands()

int ff_inlink_process_commands	(	AVFilterLink *	link,
		const AVFrame *	frame
	)

Process the commands queued in the link up to the time of the frame.

Commands will trigger the process_command() callback.

Returns

>= 0 or AVERROR code.

Definition at line 1538 of file avfilter.c.

Referenced by consume_update(), and ff_filter_frame_framed().

ff_inlink_evaluate_timeline_at_frame()

int ff_inlink_evaluate_timeline_at_frame	(	AVFilterLink *	link,
		const AVFrame *	frame
	)

Evaluate the timeline expression of the link for the time and properties of the frame.

Returns

>0 if enabled, 0 if disabled

Note

It does not update link->dst->is_disabled.

Definition at line 1553 of file avfilter.c.

Referenced by consume_update(), and ff_filter_frame_framed().