ass_split.c File Reference

#include <limits.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/error.h"
#include "libavutil/macros.h"
#include "libavutil/mem.h"
#include "ass_split.h"

Go to the source code of this file.

Data Structures
struct	ASSFields
struct	ASSSection
struct	ASSSplitContext
	This struct can be casted to ASS to access to the split data. More...

Typedefs
typedef int(*	ASSConvertFunc) (void *dest, const char *buf, int len)

Enumerations
enum	ASSFieldType {   ASS_STR, ASS_INT, ASS_FLT, ASS_COLOR,   ASS_TIMESTAMP, ASS_ALGN }

Functions
static int	convert_str (void *dest, const char *buf, int len)
static int	convert_int (void *dest, const char *buf, int len)
static int	convert_flt (void *dest, const char *buf, int len)
static int	convert_color (void *dest, const char *buf, int len)
static int	convert_timestamp (void *dest, const char *buf, int len)
static int	convert_alignment (void *dest, const char *buf, int len)
static uint8_t *	realloc_section_array (ASSSplitContext *ctx)
static int	is_eol (char buf)
static const char *	skip_space (const char *buf)
static int *	get_default_field_orders (const ASSSection *section, int *number)
static const char *	ass_split_section (ASSSplitContext *ctx, const char *buf)
static int	ass_split (ASSSplitContext *ctx, const char *buf)
av_cold ASSSplitContext *	ff_ass_split (const char *buf)
	Split a full ASS file or a ASS header from a string buffer and store the split structure in a newly allocated context. More...
static void	free_section (ASSSplitContext *ctx, const ASSSection *section)
void	ff_ass_free_dialog (ASSDialog **dialogp)
	Free a dialogue obtained from ff_ass_split_dialog(). More...
ASSDialog *	ff_ass_split_dialog (ASSSplitContext *ctx, const char *buf)
	Split one ASS Dialogue line from a string buffer. More...
av_cold void	ff_ass_split_free (ASSSplitContext *ctx)
	Free all the memory allocated for an ASSSplitContext. More...
int	ff_ass_split_override_codes (const ASSCodesCallbacks *callbacks, void *priv, const char *buf)
	Split override codes out of a ASS "Dialogue" Text field. More...
ASSStyle *	ff_ass_style_get (ASSSplitContext *ctx, const char *style)
	Find an ASSStyle structure by its name. More...

Variables
static const ASSSection	ass_sections []
static const ASSConvertFunc	convert_func []

Typedef Documentation

ASSConvertFunc

typedef int(* ASSConvertFunc) (void *dest, const char *buf, int len)

Definition at line 150 of file ass_split.c.

Enumeration Type Documentation

ASSFieldType

enum ASSFieldType

Enumerator
ASS_STR
ASS_INT
ASS_FLT
ASS_COLOR
ASS_TIMESTAMP
ASS_ALGN

Definition at line 33 of file ass_split.c.

Function Documentation

convert_str()

static int convert_str ( void *  dest, const char *  buf, int  len  )

static

Definition at line 152 of file ass_split.c.

convert_int()

static int convert_int ( void *  dest, const char *  buf, int  len  )

static

Definition at line 164 of file ass_split.c.

convert_flt()

static int convert_flt ( void *  dest, const char *  buf, int  len  )

static

Definition at line 168 of file ass_split.c.

convert_color()

static int convert_color ( void *  dest, const char *  buf, int  len  )

static

Definition at line 172 of file ass_split.c.

convert_timestamp()

static int convert_timestamp ( void *  dest, const char *  buf, int  len  )

static

Definition at line 177 of file ass_split.c.

convert_alignment()

static int convert_alignment ( void *  dest, const char *  buf, int  len  )

static

Definition at line 184 of file ass_split.c.

realloc_section_array()

static uint8_t* realloc_section_array ( ASSSplitContext *  ctx )

static

Definition at line 213 of file ass_split.c.

Referenced by ass_split_section().

is_eol()

static int is_eol ( char  buf )

inlinestatic

Definition at line 228 of file ass_split.c.

Referenced by ass_split_section().

skip_space()

static const char* skip_space ( const char *  buf )

inlinestatic

Definition at line 233 of file ass_split.c.

Referenced by ass_split_section(), and ff_ass_split_dialog().

get_default_field_orders()

static int* get_default_field_orders ( const ASSSection *  section, int *  number  )

static

Definition at line 240 of file ass_split.c.

Referenced by ass_split_section().

ass_split_section()

static const char* ass_split_section ( ASSSplitContext *  ctx, const char *  buf  )

static

Definition at line 255 of file ass_split.c.

Referenced by ass_split().

ass_split()

static int ass_split ( ASSSplitContext *  ctx, const char *  buf  )

static

Definition at line 357 of file ass_split.c.

Referenced by ff_ass_split().

ff_ass_split()

av_cold ASSSplitContext* ff_ass_split

(

const char *

buf

)

Split a full ASS file or a ASS header from a string buffer and store the split structure in a newly allocated context.

Parameters

buf	String containing the ASS formatted data.

Returns

Newly allocated struct containing split data.

Definition at line 382 of file ass_split.c.

Referenced by mov_text_encode_init(), srt_encode_init(), ttml_encode_init(), and webvtt_encode_init().

free_section()

static void free_section ( ASSSplitContext *  ctx, const ASSSection *  section  )

static

Definition at line 397 of file ass_split.c.

Referenced by ff_ass_split_free().

ff_ass_free_dialog()

void ff_ass_free_dialog

(

ASSDialog **

dialogp

)

Free a dialogue obtained from ff_ass_split_dialog().

Definition at line 421 of file ass_split.c.

Referenced by encode_frame(), ff_ass_split_dialog(), mov_text_encode_frame(), ttml_encode_frame(), and webvtt_encode_frame().

ff_ass_split_dialog()

ASSDialog* ff_ass_split_dialog	(	ASSSplitContext *	ctx,
		const char *	buf
	)

Split one ASS Dialogue line from a string buffer.

Parameters

ctx	Context previously initialized by ff_ass_split().
buf	String containing the ASS "Dialogue" line.

Returns

Pointer to the split ASSDialog. Must be freed with ff_ass_free_dialog()

Definition at line 433 of file ass_split.c.

Referenced by encode_frame(), mov_text_encode_frame(), ttml_encode_frame(), and webvtt_encode_frame().

ff_ass_split_free()

av_cold void ff_ass_split_free

(

ASSSplitContext *

ctx

)

Free all the memory allocated for an ASSSplitContext.

Parameters

ctx	Context previously initialized by ff_ass_split().

Definition at line 470 of file ass_split.c.

Referenced by ff_ass_split(), mov_text_encode_close(), srt_encode_close(), ttml_encode_close(), and webvtt_encode_close().

ff_ass_split_override_codes()

int ff_ass_split_override_codes	(	const ASSCodesCallbacks *	callbacks,
		void *	priv,
		const char *	buf
	)

Split override codes out of a ASS "Dialogue" Text field.

Parameters

callbacks	Set of callback functions called for each override code encountered.
priv	Opaque pointer passed to the callback functions.
buf	The ASS "Dialogue" Text field to split.

Returns

>= 0 on success otherwise an error code <0

Definition at line 483 of file ass_split.c.

Referenced by encode_frame(), mov_text_encode_frame(), ttml_encode_frame(), and webvtt_encode_frame().

ff_ass_style_get()

ASSStyle* ff_ass_style_get	(	ASSSplitContext *	ctx,
		const char *	style
	)

Find an ASSStyle structure by its name.

Parameters

ctx	Context previously initialized by ff_ass_split().
style	name of the style to search for.

Returns

the ASSStyle corresponding to style, or NULL if style can't be found

Definition at line 578 of file ass_split.c.

Referenced by encode_sample_description(), mov_text_cancel_overrides_cb(), mov_text_dialog(), srt_style_apply(), and webvtt_style_apply().

Variable Documentation

ass_sections

const ASSSection ass_sections[]

static

Definition at line 58 of file ass_split.c.

Referenced by ass_split(), ass_split_section(), ff_ass_split_free(), and realloc_section_array().

convert_func

const ASSConvertFunc convert_func[]

static

Initial value:

= {
    [ASS_STR]       = convert_str,
    [ASS_INT]       = convert_int,
    [ASS_FLT]       = convert_flt,
    [ASS_COLOR]     = convert_color,
    [ASS_TIMESTAMP] = convert_timestamp,
    [ASS_ALGN]      = convert_alignment,
}

Definition at line 195 of file ass_split.c.

Referenced by ass_split_section(), and ff_ass_split_dialog().