#include <string.h>
#include <stdio.h>
#include "libavutil/avstring.h"
#include "libavutil/dict.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "avfilter_internal.h"
#include "filters.h"

Macros
#define	WHITESPACES " \n\t\r"

Functions
static char *	parse_link_name (const char *buf, void log_ctx)
	Parse the name of a link, which has the format "[linkname]".

AVFilterInOut *	avfilter_inout_alloc (void)
	Allocate a single AVFilterInOut entry.

void	avfilter_inout_free (AVFilterInOut **inout)
	Free the supplied list of AVFilterInOut and set *inout to NULL.

static AVFilterInOut *	extract_inout (const char label, AVFilterInOut *links)

static void	append_inout (AVFilterInOut inouts, AVFilterInOut element)

static int	parse_sws_flags (const char buf, char dst, void *log_ctx)

int	avfilter_graph_parse2 (AVFilterGraph graph, const char filters, AVFilterInOut inputs, AVFilterInOut outputs)
	Add a graph described by a string to a graph.

int	avfilter_graph_parse (AVFilterGraph graph, const char filters, AVFilterInOut open_inputs, AVFilterInOut open_outputs, void *log_ctx)
	Add a graph described by a string to a graph.

static void	pad_params_free (AVFilterPadParams **pfpp)

static void	filter_params_free (AVFilterParams **pp)

static void	chain_free (AVFilterChain **pch)

void	avfilter_graph_segment_free (AVFilterGraphSegment **pseg)
	Free the provided AVFilterGraphSegment and everything associated with it.

static int	linklabels_parse (void logctx, const char linklabels, AVFilterPadParams *res, unsigned nb_res)

static int	filter_parse (void logctx, const char filter, AVFilterParams *pp)

static int	chain_parse (void logctx, const char pchain, AVFilterChain *pch)

int	avfilter_graph_segment_parse (AVFilterGraph graph, const char graph_str, int flags, AVFilterGraphSegment **pseg)
	Parse a textual filtergraph description into an intermediate form.

int	avfilter_graph_segment_create_filters (AVFilterGraphSegment *seg, int flags)
	Create filters specified in a graph segment.

static int	fail_creation_pending (AVFilterGraphSegment seg, const char fn, const char *func)

int	avfilter_graph_segment_apply_opts (AVFilterGraphSegment *seg, int flags)
	Apply parsed options to filter instances in a graph segment.

int	avfilter_graph_segment_init (AVFilterGraphSegment *seg, int flags)
	Initialize all filter instances in a graph segment.

static unsigned	find_linklabel (AVFilterGraphSegment seg, const char label, int output, size_t idx_chain, size_t idx_filter, AVFilterParams **pp)

static int	inout_add (AVFilterInOut *inouts, AVFilterContext f, unsigned pad_idx, const char *label)

static int	link_inputs (AVFilterGraphSegment seg, size_t idx_chain, size_t idx_filter, AVFilterInOut *inputs)

static int	link_outputs (AVFilterGraphSegment seg, size_t idx_chain, size_t idx_filter, AVFilterInOut *outputs)

int	avfilter_graph_segment_link (AVFilterGraphSegment seg, int flags, AVFilterInOut inputs, AVFilterInOut *outputs)
	Link filters in a graph segment.

static void	log_unknown_opt (const AVFilterGraphSegment *seg)

int	avfilter_graph_segment_apply (AVFilterGraphSegment seg, int flags, AVFilterInOut inputs, AVFilterInOut *outputs)
	Apply all filter/link descriptions from a graph segment to the associated filtergraph.

int	avfilter_graph_parse_ptr (AVFilterGraph graph, const char filters, AVFilterInOut open_inputs_ptr, AVFilterInOut open_outputs_ptr, void *log_ctx)
	Add a graph described by a string to a graph.

Macro Definition Documentation

◆ WHITESPACES

#define WHITESPACES " \n\t\r"

Definition at line 35 of file graphparser.c.

Referenced by av_bprint_escape(), av_get_token(), avfilter_graph_segment_parse(), chain_parse(), filter_parse(), get_key(), linklabels_parse(), and parse_set_cookie().

Function Documentation

◆ parse_link_name()

static char * parse_link_name	(	const char **	buf,
		void *	log_ctx )

static

Parse the name of a link, which has the format "[linkname]".

Returns: a pointer (that need to be freed after use) to the name between parenthesis

Definition at line 43 of file graphparser.c.

Referenced by linklabels_parse().

◆ extract_inout()

static AVFilterInOut * extract_inout	(	const char *	label,
		AVFilterInOut **	links )

static

Definition at line 86 of file graphparser.c.

Referenced by avfilter_graph_parse(), and avfilter_graph_parse_ptr().

◆ append_inout()

static void append_inout	(	AVFilterInOut **	inouts,
		AVFilterInOut **	element )

static

Definition at line 103 of file graphparser.c.

Referenced by avfilter_graph_parse_ptr(), and inout_add().

◆ parse_sws_flags()

static int parse_sws_flags	(	const char **	buf,
		char **	dst,
		void *	log_ctx )

static

Definition at line 115 of file graphparser.c.

Referenced by avfilter_graph_segment_parse().

◆ pad_params_free()

static void pad_params_free ( AVFilterPadParams ** pfpp )

static

Definition at line 227 of file graphparser.c.

Referenced by filter_params_free(), and linklabels_parse().

◆ filter_params_free()

static void filter_params_free ( AVFilterParams ** pp )

static

Definition at line 239 of file graphparser.c.

Referenced by chain_free(), chain_parse(), and filter_parse().

◆ chain_free()

static void chain_free ( AVFilterChain ** pch )

static

Definition at line 262 of file graphparser.c.

Referenced by avfilter_graph_segment_free(), avfilter_graph_segment_parse(), and chain_parse().

◆ linklabels_parse()

static int linklabels_parse	(	void *	logctx,
		const char **	linklabels,
		AVFilterPadParams ***	res,
		unsigned *	nb_res )

static

Definition at line 292 of file graphparser.c.

Referenced by avfilter_graph_parse_ptr(), and filter_parse().

◆ filter_parse()

static int filter_parse	(	void *	logctx,
		const char **	filter,
		AVFilterParams **	pp )

static

Definition at line 338 of file graphparser.c.

Referenced by chain_parse().

◆ chain_parse()

static int chain_parse	(	void *	logctx,
		const char **	pchain,
		AVFilterChain **	pch )

static

Definition at line 403 of file graphparser.c.

Referenced by avfilter_graph_segment_parse().

◆ fail_creation_pending()

static int fail_creation_pending	(	AVFilterGraphSegment *	seg,
		const char *	fn,
		const char *	func )

static

Definition at line 577 of file graphparser.c.

Referenced by avfilter_graph_segment_apply_opts(), avfilter_graph_segment_init(), and avfilter_graph_segment_link().

◆ find_linklabel()

static unsigned find_linklabel	(	AVFilterGraphSegment *	seg,
		const char *	label,
		int	output,
		size_t	idx_chain,
		size_t	idx_filter,
		AVFilterParams **	pp )

static

Definition at line 644 of file graphparser.c.

Referenced by link_inputs(), and link_outputs().

◆ inout_add()

static int inout_add	(	AVFilterInOut **	inouts,
		AVFilterContext *	f,
		unsigned	pad_idx,
		const char *	label )

static

Definition at line 678 of file graphparser.c.

Referenced by link_inputs(), and link_outputs().

◆ link_inputs()

static int link_inputs	(	AVFilterGraphSegment *	seg,
		size_t	idx_chain,
		size_t	idx_filter,
		AVFilterInOut **	inputs )

static

Definition at line 702 of file graphparser.c.

Referenced by avfilter_graph_segment_link().

◆ link_outputs()

static int link_outputs	(	AVFilterGraphSegment *	seg,
		size_t	idx_chain,
		size_t	idx_filter,
		AVFilterInOut **	outputs )

static

Definition at line 747 of file graphparser.c.

Referenced by avfilter_graph_segment_link().

◆ log_unknown_opt()

static void log_unknown_opt ( const AVFilterGraphSegment * seg )

static

Definition at line 857 of file graphparser.c.

Referenced by avfilter_graph_parse_ptr(), and avfilter_graph_segment_apply().

Macros

Functions

Macro Definition Documentation

◆ WHITESPACES

Function Documentation

◆ parse_link_name()

◆ extract_inout()

◆ append_inout()

◆ parse_sws_flags()

◆ pad_params_free()

◆ filter_params_free()

◆ chain_free()

◆ linklabels_parse()

◆ filter_parse()

◆ chain_parse()

◆ fail_creation_pending()

◆ find_linklabel()

◆ inout_add()

◆ link_inputs()

◆ link_outputs()

◆ log_unknown_opt()