ttml_conv.c File Reference

#include <gpac/filters.h>
#include <gpac/constants.h>
#include <gpac/bitstream.h>
#include <gpac/internal/isomedia_dev.h>
#include <gpac/internal/media_dev.h>
#include <gpac/color.h>
#include <gpac/xml.h>

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Data Structures
struct	TTMLConvCtx

Functions
GF_Err	ttmlconv_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
GF_XMLNode *	ttml_get_body (GF_XMLNode *root)
GF_XMLAttribute *	ttml_get_attr (GF_XMLNode *node, char *name)
u64	ttml_get_timestamp_ex (char *value, u32 tick_rate, u32 *ttml_fps_num, u32 *ttml_fps_den, u32 *ttml_sfps)
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 void	ttmlconv_dump_node (TTMLConvCtx *ctx, GF_XMLNode *p, FILE *dump)
GF_Err	ttmlconv_process (GF_Filter *filter)
static void	ttmlconv_finalize (GF_Filter *filter)
const GF_FilterRegister *	ttml2vtt_register (GF_FilterSession *session)
static GF_Err	ttmlconv2_initialize (GF_Filter *filter)
const GF_FilterRegister *	ttml2srt_register (GF_FilterSession *session)

Variables
static const GF_FilterCapability	TTMLConvCaps []
GF_FilterRegister	TTMLConvRegister
static const GF_FilterCapability	TTMLConv2Caps []
GF_FilterRegister	TTMLConv2Register

---

Data Structure Documentation

TTMLConvCtx

struct TTMLConvCtx

Data Fields
GF_FilterPid *	ipid
GF_FilterPid *	opid
u32	timescale
u8 *	buf
u32	buf_alloc
u64	last_end_ts
s64	delay
Bool	srt_conv

Function Documentation

ttmlconv_configure_pid()

GF_Err ttmlconv_configure_pid	(	GF_Filter *	filter,
		GF_FilterPid *	pid,
		Bool	is_remove
	)

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ttml_get_body()

GF_XMLNode* ttml_get_body

(

GF_XMLNode *

root

)

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ttml_get_attr()

GF_XMLAttribute* ttml_get_attr	(	GF_XMLNode *	node,
		char *	name
	)

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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_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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ttmlconv_dump_node()

static void ttmlconv_dump_node ( TTMLConvCtx *  ctx, GF_XMLNode *  p, FILE *  dump  )

static

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ttmlconv_process()

GF_Err ttmlconv_process

(

GF_Filter *

filter

)

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ttmlconv_finalize()

static void ttmlconv_finalize ( GF_Filter *  filter )

static

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ttml2vtt_register()

const GF_FilterRegister* ttml2vtt_register

(

GF_FilterSession *

session

)

ttmlconv2_initialize()

static GF_Err ttmlconv2_initialize ( GF_Filter *  filter )

static

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ttml2srt_register()

const GF_FilterRegister* ttml2srt_register

(

GF_FilterSession *

session

)

Variable Documentation

TTMLConvCaps

const GF_FilterCapability TTMLConvCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_SUBS_XML),
        CAP_BOOL(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_OUTPUT,GF_PROP_PID_CODECID, GF_CODECID_WEBVTT),
        CAP_BOOL(GF_CAPS_OUTPUT,GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
}

TTMLConvRegister

GF_FilterRegister TTMLConvRegister

Initial value:

= {
        .name = "ttml2vtt",
 
        GF_FS_SET_HELP("This filter converts TTML frames to unframed WebVTT.\n"
        "\n"
        "Conversion is quite limited: only the first div is analyzed and only basic styling is implemented.\n"
        )
        .private_size = sizeof(TTMLConvCtx),
        .finalize = ttmlconv_finalize,
        SETCAPS(TTMLConvCaps),
        .configure_pid = ttmlconv_configure_pid,
        .process = ttmlconv_process,
        
        .priority = 128,
        .hint_class_type = GF_FS_CLASS_SUBTITLE
}

TTMLConv2Caps

const GF_FilterCapability TTMLConv2Caps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_SUBS_XML),
        CAP_BOOL(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_TEXT),
        CAP_UINT(GF_CAPS_OUTPUT,GF_PROP_PID_CODECID, GF_CODECID_SIMPLE_TEXT),
        CAP_BOOL(GF_CAPS_OUTPUT,GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
}

TTMLConv2Register

GF_FilterRegister TTMLConv2Register

Initial value:

= {
        .name = "ttml2srt",
 
        GF_FS_SET_HELP("This filter converts TTML frames to unframed SRT.\n"
        "\n"
        "Conversion is quite limited: only the first div is analyzed and only basic styling is implemented.\n"
        )
        .private_size = sizeof(TTMLConvCtx),
        .initialize = ttmlconv2_initialize,
        .finalize = ttmlconv_finalize,
        SETCAPS(TTMLConv2Caps),
        .configure_pid = ttmlconv_configure_pid,
        .process = ttmlconv_process,
        .hint_class_type = GF_FS_CLASS_SUBTITLE
}