load_text.c File Reference

#include <gpac/filters.h>
#include <gpac/constants.h>
#include <gpac/utf.h>
#include <gpac/xml.h>
#include <gpac/token.h>
#include <gpac/color.h>
#include <gpac/network.h>
#include <gpac/internal/media_dev.h>
#include <gpac/internal/isomedia_dev.h>
#include <gpac/internal/swf_dev.h>
#include <gpac/base_coding.h>

Include dependency graph for load_text.c:

Data Structures
struct	GF_TXTIn
struct	TTMLRes
struct	TTMLInterval
struct	GF_ISOFlusher
struct	Marker

Macros
#define	TTML_NAMESPACE   "http://www.w3.org/ns/ttml"
#define	CHECK_STR(__str)
#define	REM_TRAIL_MARKS(__str, __sep)
#define	GET_MARKER_POS(_val, __isend)
#define	PROBE_OK(_score, _mime)
#define	OFFS(_n)   #_n, offsetof(GF_TXTIn, _n)
#define	OFFS(_n)   #_n, offsetof(GF_TXTIn, _n)
#define	OFFS(_n)   #_n, offsetof(GF_TXTIn, _n)

Typedefs
typedef u32	GF_TXTInTextStreamMode

Enumerations
enum	GF_TXTInTextStreamMode_t {   STXT_MODE_STXT =0 , STXT_MODE_SBTT , STXT_MODE_TX3G , STXT_MODE_VTT ,   STXT_MODE_WEBVTT }
enum	{   GF_TXTIN_MODE_NONE = 0 , GF_TXTIN_MODE_SRT , GF_TXTIN_MODE_SUB , GF_TXTIN_MODE_TTXT ,   GF_TXTIN_MODE_TEXML , GF_TXTIN_MODE_WEBVTT , GF_TXTIN_MODE_TTML , GF_TXTIN_MODE_SWF_SVG ,   GF_TXTIN_MODE_SSA , GF_TXTIN_MODE_SIMPLE , GF_TXTIN_MODE_PROBE }

Functions
s32	gf_text_get_utf_type (GF_TXTIn *ctx, FILE *in_src)
static void	ttxt_dom_progress (void *cbk, u64 cur_samp, u64 count)
static Bool	txtin_check_blocking (GF_TXTIn *ctx)
static GF_Err	gf_text_guess_format (GF_TXTIn *ctx, const char *filename, u32 *fmt)
char *	gf_text_get_utf8_line (char *szLine, u32 lineSize, FILE *txt_in, s32 unicode_type, Bool *io_progress)
static void	txtin_probe_duration (GF_TXTIn *ctx)
static GF_Err	txtin_setup_srt (GF_Filter *filter, GF_TXTIn *ctx, Bool gen_dsi_only)
static void	txtin_process_send_text_sample (GF_TXTIn *ctx, GF_TextSample *txt_samp, u64 ts, u32 duration, Bool is_rap)
static GF_Err	parse_srt_line (GF_TXTIn *ctx, char *szLine, u32 *char_l, Bool *set_start_c, Bool *set_end_c)
static GF_Err	txtin_process_srt (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	gf_webvtt_import_report (void *user, GF_Err e, char *message, const char *line)
static void	gf_webvtt_import_header (void *user, const char *config)
static void	gf_webvtt_flush_sample (void *user, GF_WebVTTSample *samp)
static GF_Err	txtin_webvtt_setup (GF_Filter *filter, GF_TXTIn *ctx)
void	gf_webvtt_parser_not_done (GF_WebVTTParser *parser)
static GF_Err	txtin_process_webvtt (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static char *	ttxt_parse_string (char *str, Bool strip_lines)
static void	ebu_ttd_remove_samples (GF_XMLNode *root, GF_XMLNode **out_body_node)
u64	ttml_get_timestamp_ex (char *value, u32 tick_rate, u32 *ttml_fps_num, u32 *ttml_fps_den, u32 *ttml_sfps)
static u64	ttml_get_timestamp (GF_TXTIn *ctx, char *value)
static GF_Err	ttml_push_interval (GF_TXTIn *ctx, s64 begin, s64 end, TTMLInterval **out_interval)
static void	ttml_reset_intervals (GF_TXTIn *ctx)
static GF_Err	ttml_push_res (GF_TXTIn *ctx, TTMLInterval *interval, u8 *f_data, u32 f_size)
static GF_Err	ttml_push_resources (GF_TXTIn *ctx, TTMLInterval *interval, GF_XMLNode *node, GF_XMLNode *parent_source_node)
static GF_Err	ttml_rewrite_timestamp (GF_TXTIn *ctx, s64 ttml_zero, GF_XMLAttribute *att, s64 *value, Bool *drop)
static GF_Err	ttml_setup_intervals (GF_TXTIn *ctx)
GF_Err	ttml_parse_root (GF_XMLNode *root, const char **lang, u32 *tick_rate, u32 *ttml_fps_num, u32 *ttml_fps_den, u32 *ttml_sfps)
static GF_Err	gf_text_ttml_setup (GF_Filter *filter, GF_TXTIn *ctx)
static Bool	ttml_check_range (TTMLInterval *interval, s64 ts_begin, s64 ts_end)
static GF_Err	ttml_send_empty_sample (GF_TXTIn *ctx, u64 sample_start, u64 sample_end)
static GF_Err	gf_text_process_ttml (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	swf_svg_add_iso_sample (void *user, const u8 *data, u32 length, u64 timestamp, Bool isRap)
static GF_Err	swf_svg_add_iso_header (void *user, const u8 *data, u32 length, Bool isHeader)
static GF_Err	gf_text_swf_setup (GF_Filter *filter, GF_TXTIn *ctx)
static GF_Err	gf_text_process_swf (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	gf_text_process_sub (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	gf_text_process_ssa (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static u32	ttxt_get_color (char *val)
static void	ttxt_parse_text_box (GF_XMLNode *n, GF_BoxRecord *box)
static void	ttxt_parse_text_style (GF_TXTIn *ctx, GF_XMLNode *n, GF_StyleRecord *style)
static GF_Err	txtin_setup_ttxt (GF_Filter *filter, GF_TXTIn *ctx)
static GF_Err	txtin_process_ttxt (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static u32	tx3g_get_color (char *value)
static void	tx3g_parse_text_box (GF_XMLNode *n, GF_BoxRecord *box)
static GF_Err	txtin_texml_setup (GF_Filter *filter, GF_TXTIn *ctx)
static GF_Err	txtin_process_texml (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	txtin_process_simple (GF_Filter *filter, GF_TXTIn *ctx, GF_FilterPacket *ipck)
static GF_Err	txtin_configure_pid_ex (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove, u32 force_fmt)
static GF_Err	txtin_process (GF_Filter *filter)
static void	ttxtin_reset (GF_TXTIn *ctx)
static GF_Err	txtin_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
static Bool	txtin_process_event (GF_Filter *filter, const GF_FilterEvent *evt)
GF_Err	txtin_initialize (GF_Filter *filter)
void	txtin_finalize (GF_Filter *filter)
static const char *	txtin_probe_data (const u8 *data, u32 data_size, GF_FilterProbeScore *score)
const GF_FilterRegister *	txtin_register (GF_FilterSession *session)
static GF_Err	vtt2tx3g_initialize (GF_Filter *filter)
const GF_FilterRegister *	vtt2tx3g_register (GF_FilterSession *session)
static GF_Err	rfsrt_initialize (GF_Filter *filter)
const GF_FilterRegister *	rfsrt_register (GF_FilterSession *session)

Variables
static const GF_FilterCapability	TXTInCaps []
static const GF_FilterArgs	TXTInArgs []
GF_FilterRegister	TXTInRegister
static const GF_FilterCapability	VTTTX3GCaps []
static const GF_FilterArgs	VTTTX3GArgs []
GF_FilterRegister	VTTTX3GRegister
static const GF_FilterCapability	RFSRTCaps []
static const GF_FilterArgs	RFSRTArgs []
GF_FilterRegister	RFSRTRegister

---

Data Structure Documentation

TTMLRes

struct TTMLRes

Data Fields
u32	size
u8 *	data
Bool	global

TTMLInterval

struct TTMLInterval

Data Fields
s64	begin
s64	end
GF_List *	resources

GF_ISOFlusher

struct GF_ISOFlusher

Data Fields
GF_TXTIn *	ctx
u32	timescale
u32	track
u32	descriptionIndex

Marker

struct Marker

Data Fields
u32	id
u32	pos

Macro Definition Documentation

TTML_NAMESPACE

#define TTML_NAMESPACE   "http://www.w3.org/ns/ttml"

CHECK_STR

#define CHECK_STR

(

__str

)

Value:

        if (!__str) { \
                e = gf_import_message(import, GF_BAD_PARAM, "Invalid XML formatting (line %d)", parser.line);   \
                goto exit;      \
        }

REM_TRAIL_MARKS

#define REM_TRAIL_MARKS	(		__str,
			__sep
	)

Value:

                while (1) {     \
                u32 _len = (u32) strlen(__str);         \
                if (!_len) break;       \
                _len--;                         \
                if (strchr(__sep, __str[_len])) __str[_len] = 0;        \
                else break;     \
        }       \

GET_MARKER_POS

#define GET_MARKER_POS	(		_val,
			__isend
	)

Value:

        {       \
                u32 i, __m = atoi(att->value);  \
                _val = 0;       \
                for (i=0; i<nb_marks; i++) { if (__m==marks[i].id) { _val = marks[i].pos; /*if (__isend) _val--; */break; } }    \
        }

PROBE_OK

#define PROBE_OK	(		_score,
			_mime
	)

Value:

                *score = _score;\
                if (dst) gf_free(dst);\
                return _mime; \

OFFS [1/3]

#define OFFS

(

_n

)

#_n, offsetof(GF_TXTIn, _n)

OFFS [2/3]

#define OFFS

(

_n

)

#_n, offsetof(GF_TXTIn, _n)

OFFS [3/3]

#define OFFS

(

_n

)

#_n, offsetof(GF_TXTIn, _n)

Typedef Documentation

GF_TXTInTextStreamMode

typedef u32 GF_TXTInTextStreamMode

Enumeration Type Documentation

GF_TXTInTextStreamMode_t

enum GF_TXTInTextStreamMode_t

Enumerator
STXT_MODE_STXT
STXT_MODE_SBTT
STXT_MODE_TX3G
STXT_MODE_VTT
STXT_MODE_WEBVTT

anonymous enum

anonymous enum

Enumerator
GF_TXTIN_MODE_NONE
GF_TXTIN_MODE_SRT
GF_TXTIN_MODE_SUB
GF_TXTIN_MODE_TTXT
GF_TXTIN_MODE_TEXML
GF_TXTIN_MODE_WEBVTT
GF_TXTIN_MODE_TTML
GF_TXTIN_MODE_SWF_SVG
GF_TXTIN_MODE_SSA
GF_TXTIN_MODE_SIMPLE
GF_TXTIN_MODE_PROBE

Function Documentation

gf_text_get_utf_type()

s32 gf_text_get_utf_type	(	GF_TXTIn *	ctx,
		FILE *	in_src
	)

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ttxt_dom_progress()

static void ttxt_dom_progress ( void *  cbk, u64  cur_samp, u64  count  )

static

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txtin_check_blocking()

static Bool txtin_check_blocking ( GF_TXTIn *  ctx )

static

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gf_text_guess_format()

static GF_Err gf_text_guess_format ( GF_TXTIn *  ctx, const char *  filename, u32 *  fmt  )

static

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gf_text_get_utf8_line()

char * gf_text_get_utf8_line	(	char *	szLine,
		u32	lineSize,
		FILE *	txt_in,
		s32	unicode_type,
		Bool *	io_progress
	)

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txtin_probe_duration()

static void txtin_probe_duration ( GF_TXTIn *  ctx )

static

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txtin_setup_srt()

static GF_Err txtin_setup_srt ( GF_Filter *  filter, GF_TXTIn *  ctx, Bool  gen_dsi_only  )

static

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txtin_process_send_text_sample()

static void txtin_process_send_text_sample ( GF_TXTIn *  ctx, GF_TextSample *  txt_samp, u64  ts, u32  duration, Bool  is_rap  )

static

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parse_srt_line()

static GF_Err parse_srt_line ( GF_TXTIn *  ctx, char *  szLine, u32 *  char_l, Bool *  set_start_c, Bool *  set_end_c  )

static

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txtin_process_srt()

static GF_Err txtin_process_srt ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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gf_webvtt_import_report()

static GF_Err gf_webvtt_import_report ( void *  user, GF_Err  e, char *  message, const char *  line  )

static

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gf_webvtt_import_header()

static void gf_webvtt_import_header ( void *  user, const char *  config  )

static

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gf_webvtt_flush_sample()

static void gf_webvtt_flush_sample ( void *  user, GF_WebVTTSample *  samp  )

static

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txtin_webvtt_setup()

static GF_Err txtin_webvtt_setup ( GF_Filter *  filter, GF_TXTIn *  ctx  )

static

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gf_webvtt_parser_not_done()

void gf_webvtt_parser_not_done

(

GF_WebVTTParser *

parser

)

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txtin_process_webvtt()

static GF_Err txtin_process_webvtt ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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ttxt_parse_string()

static char * ttxt_parse_string ( char *  str, Bool  strip_lines  )

static

state;

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ebu_ttd_remove_samples()

static void ebu_ttd_remove_samples ( GF_XMLNode *  root, GF_XMLNode **  out_body_node  )

static

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ttml_get_timestamp_ex()

u64 ttml_get_timestamp_ex	(	char *	value,
		u32	tick_rate,
		u32 *	ttml_fps_num,
		u32 *	ttml_fps_den,
		u32 *	ttml_sfps
	)

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ttml_get_timestamp()

static u64 ttml_get_timestamp ( GF_TXTIn *  ctx, char *  value  )

static

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ttml_push_interval()

static GF_Err ttml_push_interval ( GF_TXTIn *  ctx, s64  begin, s64  end, TTMLInterval **  out_interval  )

static

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ttml_reset_intervals()

static void ttml_reset_intervals ( GF_TXTIn *  ctx )

static

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ttml_push_res()

static GF_Err ttml_push_res ( GF_TXTIn *  ctx, TTMLInterval *  interval, u8 *  f_data, u32  f_size  )

static

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ttml_push_resources()

static GF_Err ttml_push_resources ( GF_TXTIn *  ctx, TTMLInterval *  interval, GF_XMLNode *  node, GF_XMLNode *  parent_source_node  )

static

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ttml_rewrite_timestamp()

static GF_Err ttml_rewrite_timestamp ( GF_TXTIn *  ctx, s64  ttml_zero, GF_XMLAttribute *  att, s64 *  value, Bool *  drop  )

static

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ttml_setup_intervals()

static GF_Err ttml_setup_intervals ( GF_TXTIn *  ctx )

static

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ttml_parse_root()

GF_Err ttml_parse_root	(	GF_XMLNode *	root,
		const char **	lang,
		u32 *	tick_rate,
		u32 *	ttml_fps_num,
		u32 *	ttml_fps_den,
		u32 *	ttml_sfps
	)

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gf_text_ttml_setup()

static GF_Err gf_text_ttml_setup ( GF_Filter *  filter, GF_TXTIn *  ctx  )

static

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ttml_check_range()

static Bool ttml_check_range ( TTMLInterval *  interval, s64  ts_begin, s64  ts_end  )

static

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ttml_send_empty_sample()

static GF_Err ttml_send_empty_sample ( GF_TXTIn *  ctx, u64  sample_start, u64  sample_end  )

static

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gf_text_process_ttml()

static GF_Err gf_text_process_ttml ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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swf_svg_add_iso_sample()

static GF_Err swf_svg_add_iso_sample ( void *  user, const u8 *  data, u32  length, u64  timestamp, Bool  isRap  )

static

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swf_svg_add_iso_header()

static GF_Err swf_svg_add_iso_header ( void *  user, const u8 *  data, u32  length, Bool  isHeader  )

static

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gf_text_swf_setup()

static GF_Err gf_text_swf_setup ( GF_Filter *  filter, GF_TXTIn *  ctx  )

static

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gf_text_process_swf()

static GF_Err gf_text_process_swf ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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gf_text_process_sub()

static GF_Err gf_text_process_sub ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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gf_text_process_ssa()

static GF_Err gf_text_process_ssa ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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ttxt_get_color()

static u32 ttxt_get_color ( char *  val )

static

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ttxt_parse_text_box()

static void ttxt_parse_text_box ( GF_XMLNode *  n, GF_BoxRecord *  box  )

static

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ttxt_parse_text_style()

static void ttxt_parse_text_style ( GF_TXTIn *  ctx, GF_XMLNode *  n, GF_StyleRecord *  style  )

static

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txtin_setup_ttxt()

static GF_Err txtin_setup_ttxt ( GF_Filter *  filter, GF_TXTIn *  ctx  )

static

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txtin_process_ttxt()

static GF_Err txtin_process_ttxt ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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tx3g_get_color()

static u32 tx3g_get_color ( char *  value )

static

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tx3g_parse_text_box()

static void tx3g_parse_text_box ( GF_XMLNode *  n, GF_BoxRecord *  box  )

static

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txtin_texml_setup()

static GF_Err txtin_texml_setup ( GF_Filter *  filter, GF_TXTIn *  ctx  )

static

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txtin_process_texml()

static GF_Err txtin_process_texml ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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txtin_process_simple()

static GF_Err txtin_process_simple ( GF_Filter *  filter, GF_TXTIn *  ctx, GF_FilterPacket *  ipck  )

static

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txtin_configure_pid_ex()

static GF_Err txtin_configure_pid_ex ( GF_Filter *  filter, GF_FilterPid *  pid, Bool  is_remove, u32  force_fmt  )

static

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txtin_process()

static GF_Err txtin_process ( GF_Filter *  filter )

static

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ttxtin_reset()

static void ttxtin_reset ( GF_TXTIn *  ctx )

static

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txtin_configure_pid()

static GF_Err txtin_configure_pid ( GF_Filter *  filter, GF_FilterPid *  pid, Bool  is_remove  )

static

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txtin_process_event()

static Bool txtin_process_event ( GF_Filter *  filter, const GF_FilterEvent *  evt  )

static

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txtin_initialize()

GF_Err txtin_initialize

(

GF_Filter *

filter

)

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txtin_finalize()

void txtin_finalize

(

GF_Filter *

filter

)

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txtin_probe_data()

static const char * txtin_probe_data ( const u8 *  data, u32  data_size, GF_FilterProbeScore *  score  )

static

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txtin_register()

const GF_FilterRegister * txtin_register

(

GF_FilterSession *

session

)

vtt2tx3g_initialize()

static GF_Err vtt2tx3g_initialize ( GF_Filter *  filter )

static

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vtt2tx3g_register()

const GF_FilterRegister * vtt2tx3g_register

(

GF_FilterSession *

session

)

rfsrt_initialize()

static GF_Err rfsrt_initialize ( GF_Filter *  filter )

static

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rfsrt_register()

const GF_FilterRegister * rfsrt_register

(

GF_FilterSession *

session

)

Variable Documentation

TXTInCaps

const GF_FilterCapability TXTInCaps[]

static

TXTInArgs

const GF_FilterArgs TXTInArgs[]

static

Initial value:

=
{
        { OFFS(nodefbox), "skip default text box", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(noflush), "skip final sample flush for srt", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(fontname), "default font", GF_PROP_STRING, NULL, NULL, 0},
        { OFFS(fontsize), "default font size", GF_PROP_UINT, "18", NULL, 0},
        { OFFS(lang), "default language", GF_PROP_STRING, NULL, NULL, 0},
        { OFFS(width), "default width of text area", GF_PROP_UINT, "0", NULL, 0},
        { OFFS(height), "default height of text area", GF_PROP_UINT, "0", NULL, 0},
        { OFFS(txtx), "default horizontal offset of text area: -1 (left), 0 (center) or 1 (right)", GF_PROP_UINT, "0", NULL, 0},
        { OFFS(txty), "default vertical offset of text area: -1 (bottom), 0 (center) or 1 (top)", GF_PROP_UINT, "0", NULL, 0},
        { OFFS(zorder), "default z-order of the PID", GF_PROP_SINT, "0", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(timescale), "default timescale of the PID", GF_PROP_UINT, "1000", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ttml_split), "split ttml doc in non-overlapping samples", GF_PROP_BOOL, "true", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ttml_cts), "first sample cts - see filter help", GF_PROP_FRACTION64, "-1/1", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ttml_dur), "sample duration when not spliting split - see filter help", GF_PROP_FRACTION, "0/1", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ttml_embed), "force embedding TTML resources", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ttml_zero), "set subtitle zero time for TTML", GF_PROP_STRING, NULL, NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(no_empty), "do not send empty samples", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(stxtdur), "duration for simple text", GF_PROP_FRACTION, "1", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(stxtmod), "text stream mode for simple text streams and SRT inputs\n"
        "- stxt: output PID formatted as simple text stream (remove markup in VTT/SRT payload)\n"
        "- sbtt: output PID formatted as subtitle text stream (keep markup in VTT/SRT payload)\n"
        "- tx3g: output PID formatted as TX3G/Apple stream\n"
        "- vtt: output PID formatted as WebVTT stream\n"
        "- webvtt: same as vtt (for backward compatiblity", GF_PROP_UINT, "tx3g", "stxt|sbtt|tx3g|vtt|webvtt", GF_FS_ARG_HINT_EXPERT},
        { OFFS(index), "indexing window length. If 0, bitstream is not probed for duration. A negative value skips the indexing if the source file is larger than 20M (slows down importers) unless a play with start range > 0 is issued", GF_PROP_DOUBLE, "-1.0", NULL, GF_FS_ARG_HINT_HIDE},
        {0}
}

TXTInRegister

GF_FilterRegister TXTInRegister

VTTTX3GCaps

const GF_FilterCapability VTTTX3GCaps[]

static

Initial value:

=
{
        
        CAP_UINT(GF_CAPS_INPUT_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_WEBVTT),
        CAP_BOOL(GF_CAPS_INPUT, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_CODECID, GF_CODECID_TX3G),
        CAP_BOOL(GF_CAPS_OUTPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
}

VTTTX3GArgs

const GF_FilterArgs VTTTX3GArgs[]

static

Initial value:

=
{
        { OFFS(fontname), "default font", GF_PROP_STRING, NULL, NULL, 0},
        { OFFS(fontsize), "default font size", GF_PROP_UINT, "18", NULL, 0},
        {0}
}

VTTTX3GRegister

GF_FilterRegister VTTTX3GRegister

Initial value:

= {
        .name = "vtt2tx3g",
 
        GF_FS_SET_HELP("This filter rewrites unframed WebVTT to TX3G / QT Timed Text (binary format)\n"
        "\n"
        "Unframed WebVTT packets consist in single cues:\n"
        "- cue payload as packet payload\n"
        "- prefix as packet string property `vtt_pre`\n"
        "- cue ID as packet string property `vtt_cueid`\n"
        "- cue settings as packet string property `vtt_settings`\n"
        "- packet timing contains the cue timing (start and duration)\n"
        )
 
        .private_size = sizeof(GF_TXTIn),
        .flags = GF_FS_REG_MAIN_THREAD,
        .args = VTTTX3GArgs,
        SETCAPS(VTTTX3GCaps),
        .process = txtin_process,
        .configure_pid = txtin_configure_pid,
        .process_event = txtin_process_event,
        .probe_data = txtin_probe_data,
        .initialize = vtt2tx3g_initialize,
        .finalize = txtin_finalize,
        .hint_class_type = GF_FS_CLASS_SUBTITLE
}

RFSRTCaps

const GF_FilterCapability RFSRTCaps[]

static

Initial value:

=
{
        
        CAP_UINT(GF_CAPS_INPUT_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_SIMPLE_TEXT),
 
        CAP_BOOL(GF_CAPS_INPUT, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_CODECID, GF_CODECID_TX3G),
        CAP_BOOL(GF_CAPS_OUTPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
}

RFSRTArgs

const GF_FilterArgs RFSRTArgs[]

static

Initial value:

=
{
        { OFFS(fontname), "default font", GF_PROP_STRING, NULL, NULL, 0},
        { OFFS(fontsize), "default font size", GF_PROP_UINT, "18", NULL, 0},
        {0}
}

RFSRTRegister

GF_FilterRegister RFSRTRegister

Initial value:

= {
        .name = "rfsrt",
 
        GF_FS_SET_HELP("This filter rewrites unframed SRT to TX3G / QT Timed Text (binary format)\n"
        "\n"
        "An unframed SRT packet consists in a single SRT cue as packet payload and packet timing contains the cue timing (start and duration).\n"
        )
 
        .private_size = sizeof(GF_TXTIn),
        .flags = GF_FS_REG_MAIN_THREAD,
        .args = RFSRTArgs,
        SETCAPS(RFSRTCaps),
        .process = txtin_process,
        .configure_pid = txtin_configure_pid,
        .process_event = txtin_process_event,
        .probe_data = txtin_probe_data,
        .initialize = rfsrt_initialize,
        .finalize = txtin_finalize,
        .hint_class_type = GF_FS_CLASS_FRAMING
}