#include <stdarg.h>
#include "avcodec.h"
#include "libavutil/opt.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/common.h"
#include "ass_split.h"
#include "ass.h"
#include "bytestream.h"
#include "codec_internal.h"

Data Structures
struct	StyleBox

struct	HighlightBox

struct	HilightcolorBox

struct	MovTextContext

struct	Box

Macros
#define	STYLE_FLAG_BOLD (1<<0)

#define	STYLE_FLAG_ITALIC (1<<1)

#define	STYLE_FLAG_UNDERLINE (1<<2)

#define	STYLE_RECORD_SIZE 12

#define	SIZE_ADD 10

#define	STYL_BOX (1<<0)

#define	HLIT_BOX (1<<1)

#define	HCLR_BOX (1<<2)

#define	DEFAULT_STYLE_FONT_ID 0x01

#define	DEFAULT_STYLE_FONTSIZE 0x12

#define	DEFAULT_STYLE_COLOR 0xffffffff

#define	DEFAULT_STYLE_FLAG 0x00

#define	BGR_TO_RGB(c) (((c) & 0xff) << 16 \| ((c) & 0xff00) \| (((uint32_t)(c) >> 16) & 0xff))

#define	FONTSIZE_SCALE(s, fs) ((fs) * (s)->font_scale_factor + 0.5)

#define	av_bprint_append_any(buf, data, size) av_bprint_append_data(buf, ((const char*)data), size)

#define	OFFSET(x) offsetof(MovTextContext, x)

#define	FLAGS AV_OPT_FLAG_ENCODING_PARAM \| AV_OPT_FLAG_SUBTITLE_PARAM

Functions
static void	mov_text_cleanup (MovTextContext *s)

static void	encode_styl (MovTextContext *s)

static void	encode_hlit (MovTextContext *s)

static void	encode_hclr (MovTextContext *s)

static int	mov_text_encode_close (AVCodecContext *avctx)

static int	encode_sample_description (AVCodecContext *avctx)

static av_cold int	mov_text_encode_init (AVCodecContext *avctx)

static int	mov_text_style_start (MovTextContext *s)

static uint8_t	mov_text_style_to_flag (const char style)

static void	mov_text_style_set (MovTextContext *s, uint8_t style_flags)

static void	mov_text_style_cb (void *priv, const char style, int close)

static void	mov_text_color_set (MovTextContext *s, uint32_t color)

static void	mov_text_color_cb (void *priv, unsigned int color, unsigned int color_id)

static void	mov_text_alpha_set (MovTextContext *s, uint8_t alpha)

static void	mov_text_alpha_cb (void *priv, int alpha, int alpha_id)

static uint16_t	find_font_id (MovTextContext s, const char name)

static void	mov_text_font_name_set (MovTextContext s, const char name)

static void	mov_text_font_name_cb (void priv, const char name)

static void	mov_text_font_size_set (MovTextContext *s, int size)

static void	mov_text_font_size_cb (void *priv, int size)

static void	mov_text_end_cb (void *priv)

static void	mov_text_ass_style_set (MovTextContext s, ASSStyle style)

static void	mov_text_dialog (MovTextContext s, ASSDialog dialog)

static void	mov_text_cancel_overrides_cb (void priv, const char style_name)

static unsigned	utf8_strlen (const char *text, int len)

static void	mov_text_text_cb (void priv, const char text, int len)

static void	mov_text_new_line_cb (void *priv, int forced)

static int	mov_text_encode_frame (AVCodecContext avctx, unsigned char buf, int bufsize, const AVSubtitle *sub)

Variables
static const Box	box_types []

const static size_t	box_count = FF_ARRAY_ELEMS(box_types)

static const ASSCodesCallbacks	mov_text_callbacks

static const AVOption	options []

static const AVClass	mov_text_encoder_class

const FFCodec	ff_movtext_encoder

Macro Definition Documentation

◆ STYLE_FLAG_BOLD

#define STYLE_FLAG_BOLD (1<<0)

Definition at line 34 of file movtextenc.c.

◆ STYLE_FLAG_ITALIC

#define STYLE_FLAG_ITALIC (1<<1)

Definition at line 35 of file movtextenc.c.

◆ STYLE_FLAG_UNDERLINE

#define STYLE_FLAG_UNDERLINE (1<<2)

Definition at line 36 of file movtextenc.c.

◆ STYLE_RECORD_SIZE

#define STYLE_RECORD_SIZE 12

Definition at line 37 of file movtextenc.c.

◆ SIZE_ADD

#define SIZE_ADD 10

Definition at line 38 of file movtextenc.c.

◆ STYL_BOX

#define STYL_BOX (1<<0)

Definition at line 40 of file movtextenc.c.

◆ HLIT_BOX

#define HLIT_BOX (1<<1)

Definition at line 41 of file movtextenc.c.

◆ HCLR_BOX

#define HCLR_BOX (1<<2)

Definition at line 42 of file movtextenc.c.

◆ DEFAULT_STYLE_FONT_ID

#define DEFAULT_STYLE_FONT_ID 0x01

Definition at line 44 of file movtextenc.c.

◆ DEFAULT_STYLE_FONTSIZE

#define DEFAULT_STYLE_FONTSIZE 0x12

Definition at line 45 of file movtextenc.c.

◆ DEFAULT_STYLE_COLOR

#define DEFAULT_STYLE_COLOR 0xffffffff

Definition at line 46 of file movtextenc.c.

◆ DEFAULT_STYLE_FLAG

#define DEFAULT_STYLE_FLAG 0x00

Definition at line 47 of file movtextenc.c.

◆ BGR_TO_RGB

#define BGR_TO_RGB ( c ) (((c) & 0xff) << 16 | ((c) & 0xff00) | (((uint32_t)(c) >> 16) & 0xff))

Definition at line 49 of file movtextenc.c.

◆ FONTSIZE_SCALE

#define FONTSIZE_SCALE	(	s,
		fs
	)	((fs) * (s)->font_scale_factor + 0.5)

Definition at line 50 of file movtextenc.c.

◆ av_bprint_append_any

#define av_bprint_append_any	(	buf,
		data,
		size
	)	av_bprint_append_data(buf, ((const char*)data), size)

Definition at line 51 of file movtextenc.c.

◆ OFFSET

#define OFFSET ( x ) offsetof(MovTextContext, x)

Definition at line 688 of file movtextenc.c.

◆ FLAGS

#define FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_SUBTITLE_PARAM

Definition at line 689 of file movtextenc.c.

Function Documentation

◆ mov_text_cleanup()

static void mov_text_cleanup ( MovTextContext * s )

static

Definition at line 97 of file movtextenc.c.

Referenced by encode_styl(), and mov_text_style_start().

◆ encode_styl()

static void encode_styl ( MovTextContext * s )

static

Definition at line 103 of file movtextenc.c.

◆ encode_hlit()

static void encode_hlit ( MovTextContext * s )

static

Definition at line 131 of file movtextenc.c.

◆ encode_hclr()

static void encode_hclr ( MovTextContext * s )

static

Definition at line 145 of file movtextenc.c.

◆ mov_text_encode_close()

static int mov_text_encode_close ( AVCodecContext * avctx )

static

Definition at line 166 of file movtextenc.c.

◆ encode_sample_description()

static int encode_sample_description ( AVCodecContext * avctx )

static

Definition at line 177 of file movtextenc.c.

Referenced by mov_text_encode_init().

◆ mov_text_encode_init()

static av_cold int mov_text_encode_init ( AVCodecContext * avctx )

static

Definition at line 324 of file movtextenc.c.

◆ mov_text_style_start()

static int mov_text_style_start ( MovTextContext * s )

static

Definition at line 343 of file movtextenc.c.

Referenced by mov_text_alpha_set(), mov_text_ass_style_set(), mov_text_color_set(), mov_text_end_cb(), mov_text_font_name_set(), mov_text_font_size_set(), mov_text_style_cb(), and mov_text_style_set().

◆ mov_text_style_to_flag()

static uint8_t mov_text_style_to_flag ( const char style )

static

Definition at line 378 of file movtextenc.c.

Referenced by mov_text_style_cb().

◆ mov_text_style_set()

static void mov_text_style_set	(	MovTextContext *	s,
		uint8_t	style_flags
	)

static

Definition at line 396 of file movtextenc.c.

Referenced by mov_text_ass_style_set().

◆ mov_text_style_cb()

static void mov_text_style_cb	(	void *	priv,
		const char	style,
		int	close
	)

static

Definition at line 406 of file movtextenc.c.

◆ mov_text_color_set()

static void mov_text_color_set	(	MovTextContext *	s,
		uint32_t	color
	)

static

Definition at line 423 of file movtextenc.c.

Referenced by mov_text_ass_style_set(), and mov_text_color_cb().

◆ mov_text_color_cb()

static void mov_text_color_cb	(	void *	priv,
		unsigned int	color,
		unsigned int	color_id
	)

static

Definition at line 434 of file movtextenc.c.

◆ mov_text_alpha_set()

static void mov_text_alpha_set	(	MovTextContext *	s,
		uint8_t	alpha
	)

static

Definition at line 461 of file movtextenc.c.

Referenced by mov_text_alpha_cb(), and mov_text_ass_style_set().

◆ mov_text_alpha_cb()

static void mov_text_alpha_cb	(	void *	priv,
		int	alpha,
		int	alpha_id
	)

static

Definition at line 472 of file movtextenc.c.

◆ find_font_id()

static uint16_t find_font_id	(	MovTextContext *	s,
		const char *	name
	)

static

Definition at line 495 of file movtextenc.c.

Referenced by mov_text_font_name_set().

◆ mov_text_font_name_set()

static void mov_text_font_name_set	(	MovTextContext *	s,
		const char *	name
	)

static

Definition at line 507 of file movtextenc.c.

Referenced by mov_text_ass_style_set(), and mov_text_font_name_cb().

◆ mov_text_font_name_cb()

static void mov_text_font_name_cb	(	void *	priv,
		const char *	name
	)

static

Definition at line 518 of file movtextenc.c.

◆ mov_text_font_size_set()

static void mov_text_font_size_set	(	MovTextContext *	s,
		int	size
	)

static

Definition at line 523 of file movtextenc.c.

Referenced by mov_text_ass_style_set(), and mov_text_font_size_cb().

◆ mov_text_font_size_cb()

static void mov_text_font_size_cb	(	void *	priv,
		int	size
	)

static

Definition at line 534 of file movtextenc.c.

◆ mov_text_end_cb()

static void mov_text_end_cb ( void * priv )

static

Definition at line 539 of file movtextenc.c.

◆ mov_text_ass_style_set()

static void mov_text_ass_style_set	(	MovTextContext *	s,
		ASSStyle *	style
	)

static

Definition at line 545 of file movtextenc.c.

Referenced by mov_text_cancel_overrides_cb(), and mov_text_dialog().

◆ mov_text_dialog()

static void mov_text_dialog	(	MovTextContext *	s,
		ASSDialog *	dialog
	)

static

Definition at line 567 of file movtextenc.c.

Referenced by mov_text_encode_frame().

◆ mov_text_cancel_overrides_cb()

static void mov_text_cancel_overrides_cb	(	void *	priv,
		const char *	style_name
	)

static

Definition at line 575 of file movtextenc.c.

◆ utf8_strlen()

static unsigned utf8_strlen	(	const char *	text,
		int	len
	)

static

Definition at line 588 of file movtextenc.c.

Referenced by mov_text_text_cb().

◆ mov_text_text_cb()

static void mov_text_text_cb	(	void *	priv,
		const char *	text,
		int	len
	)

static

Definition at line 608 of file movtextenc.c.

◆ mov_text_new_line_cb()

static void mov_text_new_line_cb	(	void *	priv,
		int	forced
	)

static

Definition at line 617 of file movtextenc.c.

◆ mov_text_encode_frame()

static int mov_text_encode_frame	(	AVCodecContext *	avctx,
		unsigned char *	buf,
		int	bufsize,
		const AVSubtitle *	sub
	)

static

Definition at line 636 of file movtextenc.c.

Variable Documentation

◆ box_types

const Box box_types[]

static

Initial value:

= {
    { encode_styl },
    { encode_hlit },
    { encode_hclr },
}

Definition at line 158 of file movtextenc.c.

Referenced by mov_text_encode_frame().

◆ box_count

const static size_t box_count = FF_ARRAY_ELEMS(box_types)

static

Definition at line 164 of file movtextenc.c.

Referenced by mov_text_encode_frame().

◆ mov_text_callbacks

const ASSCodesCallbacks mov_text_callbacks

static

Initial value:

= {
    .text             = mov_text_text_cb,
    .new_line         = mov_text_new_line_cb,
    .style            = mov_text_style_cb,
    .color            = mov_text_color_cb,
    .alpha            = mov_text_alpha_cb,
    .font_name        = mov_text_font_name_cb,
    .font_size        = mov_text_font_size_cb,
    .cancel_overrides = mov_text_cancel_overrides_cb,
    .end              = mov_text_end_cb,
}

Definition at line 624 of file movtextenc.c.

Referenced by mov_text_encode_frame().

◆ options

const AVOption options[]

static

Initial value:

= {
    { "height", "Frame height, usually video height", OFFSET(frame_height), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
    { NULL },
}

Definition at line 690 of file movtextenc.c.

◆ mov_text_encoder_class

const AVClass mov_text_encoder_class

static

Initial value:

= {
    .class_name = "MOV text enoder",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 695 of file movtextenc.c.

◆ ff_movtext_encoder

const FFCodec ff_movtext_encoder

Initial value:

= {
    .p.name         = "mov_text",
    CODEC_LONG_NAME("3GPP Timed Text subtitle"),
    .p.type         = AVMEDIA_TYPE_SUBTITLE,
    .p.id           = AV_CODEC_ID_MOV_TEXT,
    .priv_data_size = sizeof(MovTextContext),
    .p.priv_class   = &mov_text_encoder_class,
    .init           = mov_text_encode_init,
    FF_CODEC_ENCODE_SUB_CB(mov_text_encode_frame),
    .close          = mov_text_encode_close,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 702 of file movtextenc.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ STYLE_FLAG_BOLD

◆ STYLE_FLAG_ITALIC

◆ STYLE_FLAG_UNDERLINE

◆ STYLE_RECORD_SIZE

◆ SIZE_ADD

◆ STYL_BOX

◆ HLIT_BOX

◆ HCLR_BOX

◆ DEFAULT_STYLE_FONT_ID

◆ DEFAULT_STYLE_FONTSIZE

◆ DEFAULT_STYLE_COLOR

◆ DEFAULT_STYLE_FLAG

◆ BGR_TO_RGB

◆ FONTSIZE_SCALE

◆ av_bprint_append_any

◆ OFFSET

◆ FLAGS

Function Documentation

◆ mov_text_cleanup()

◆ encode_styl()

◆ encode_hlit()

◆ encode_hclr()

◆ mov_text_encode_close()

◆ encode_sample_description()

◆ mov_text_encode_init()

◆ mov_text_style_start()

◆ mov_text_style_to_flag()

◆ mov_text_style_set()

◆ mov_text_style_cb()

◆ mov_text_color_set()

◆ mov_text_color_cb()

◆ mov_text_alpha_set()

◆ mov_text_alpha_cb()

◆ find_font_id()

◆ mov_text_font_name_set()

◆ mov_text_font_name_cb()

◆ mov_text_font_size_set()

◆ mov_text_font_size_cb()

◆ mov_text_end_cb()

◆ mov_text_ass_style_set()

◆ mov_text_dialog()

◆ mov_text_cancel_overrides_cb()

◆ utf8_strlen()

◆ mov_text_text_cb()

◆ mov_text_new_line_cb()

◆ mov_text_encode_frame()

Variable Documentation

◆ box_types

◆ box_count

◆ mov_text_callbacks

◆ options

◆ mov_text_encoder_class

◆ ff_movtext_encoder