#include <fenv.h>
#include <math.h>
#include <string.h>
#include "textutils.h"
#include "libavutil/avutil.h"
#include "libavutil/error.h"
#include "libavutil/file.h"
#include "libavutil/mem.h"
#include "libavutil/time.h"
#include "libavutil/time_internal.h"

Functions
static int	ff_expand_text_function_internal (FFExpandTextContext expand_text, AVBPrint bp, char name, unsigned argc, char *argv)

static int	ff_expand_text_function (FFExpandTextContext expand_text, AVBPrint bp, const char **rtext)
	Expand text template pointed to by *rtext. More...

int	ff_expand_text (FFExpandTextContext expand_text, const char text, AVBPrint *bp)
	Expand text template. More...

int	ff_print_pts (void log_ctx, AVBPrint bp, double pts, const char delta, const char fmt, const char *strftime_fmt)

int	ff_print_time (void log_ctx, AVBPrint bp, const char *strftime_fmt, char localtime)

int	ff_print_eval_expr (void log_ctx, AVBPrint bp, const char expr, const char const fun_names, const ff_eval_func2 fun_values, const char const var_names, const double var_values, void eval_ctx)

int	ff_print_formatted_eval_expr (void log_ctx, AVBPrint bp, const char expr, const char const fun_names, const ff_eval_func2 fun_values, const char const var_names, const double var_values, void eval_ctx, const char format, int positions)

int	ff_load_textfile (void log_ctx, const char textfile, unsigned char *text, size_t text_size)

Detailed Description

text expansion utilities

Definition in file textutils.c.

Function Documentation

◆ ff_expand_text_function_internal()

static int ff_expand_text_function_internal	(	FFExpandTextContext *	expand_text,
		AVBPrint *	bp,
		char *	name,
		unsigned	argc,
		char **	argv
	)

static

Definition at line 36 of file textutils.c.

Referenced by ff_expand_text_function().

◆ ff_expand_text_function()

static int ff_expand_text_function	(	FFExpandTextContext *	expand_text,
		AVBPrint *	bp,
		const char **	rtext
	)

static

Expand text template pointed to by *rtext.

Expand text template defined in text using the logic defined in a text expander object.

This function expects the text to be in the format %{FUNCTION_NAME[:PARAMS]}, where PARAMS is a sequence of strings separated by : and represents the function arguments to use for the function evaluation.

Parameters

text_expander	TextExpander object used to expand the text
bp	BPrint object where the expanded text is written to
rtext	pointer to pointer to the text to expand, it is updated to point to the next part of the template to process

Returns: negative value corresponding to an AVERROR error code in case of errors, a non-negative value otherwise

Definition at line 83 of file textutils.c.

Referenced by ff_expand_text().

◆ ff_expand_text()

int ff_expand_text	(	FFExpandTextContext *	expand_text,
		const char *	text,
		AVBPrint *	bp
	)

Expand text template.

Expand text template defined in text using the logic defined in a text expander object.

Parameters

expand_text	text expansion context used to expand the text
text	template text to expand
bp	BPrint object where the expanded text is written to

Returns: negative value corresponding to an AVERROR error code in case of errors, a non-negative value otherwise

Definition at line 124 of file textutils.c.

Referenced by draw_qrcode(), and draw_text().

◆ ff_print_pts()

int ff_print_pts	(	void *	log_ctx,
		AVBPrint *	bp,
		double	pts,
		const char *	delta,
		const char *	fmt,
		const char *	strftime_fmt
	)

Definition at line 150 of file textutils.c.

Referenced by func_pts().

◆ ff_print_time()

int ff_print_time	(	void *	log_ctx,
		AVBPrint *	bp,
		const char *	strftime_fmt,
		char	localtime
	)

Definition at line 203 of file textutils.c.

Referenced by func_strftime().

◆ ff_print_eval_expr()

int ff_print_eval_expr	(	void *	log_ctx,
		AVBPrint *	bp,
		const char *	expr,
		const char const	fun_names,
		const ff_eval_func2 *	fun_values,
		const char const	var_names,
		const double *	var_values,
		void *	eval_ctx
	)

Definition at line 282 of file textutils.c.

Referenced by func_eval_expr().

◆ ff_print_formatted_eval_expr()

int ff_print_formatted_eval_expr	(	void *	log_ctx,
		AVBPrint *	bp,
		const char *	expr,
		const char const	fun_names,
		const ff_eval_func2 *	fun_values,
		const char const	var_names,
		const double *	var_values,
		void *	eval_ctx,
		const char	format,
		int	positions
	)

Definition at line 304 of file textutils.c.

Referenced by func_eval_expr_formatted().

◆ ff_load_textfile()

int ff_load_textfile	(	void *	log_ctx,
		const char *	textfile,
		unsigned char **	text,
		size_t *	text_size
	)

Definition at line 354 of file textutils.c.

Referenced by filter_frame(), and init().

Functions