#include "libavutil/avstring.h"
#include "avformat.h"
#include "internal.h"
#include "mux.h"
#include "ttmlenc.h"
#include "libavcodec/ttmlenc.h"
#include "libavutil/internal.h"

Data Structures
struct	TTMLHeaderParameters

struct	TTMLMuxContext

Enumerations
enum	TTMLPacketType { PACKET_TYPE_PARAGRAPH, PACKET_TYPE_DOCUMENT }

Functions
static void	ttml_write_time (AVIOContext *pb, const char tag[], int64_t millisec)

static int	ttml_set_header_values_from_extradata (AVCodecParameters par, struct TTMLHeaderParameters header_params)

static int	ttml_write_header (AVFormatContext *ctx)

static int	ttml_write_packet (AVFormatContext ctx, AVPacket pkt)

static int	ttml_write_trailer (AVFormatContext *ctx)

Variables
static const char	ttml_header_text []

static const char	ttml_footer_text []

const FFOutputFormat	ff_ttml_muxer

Detailed Description

TTML subtitle muxer

See also: https://www.w3.org/TR/ttml1/; https://www.w3.org/TR/ttml2/; https://www.w3.org/TR/ttml-imsc/rec

Definition in file ttmlenc.c.

Enumeration Type Documentation

◆ TTMLPacketType

enum TTMLPacketType

Enumerator
PACKET_TYPE_PARAGRAPH
PACKET_TYPE_DOCUMENT

Definition at line 38 of file ttmlenc.c.

Function Documentation

◆ ttml_write_time()

static void ttml_write_time	(	AVIOContext *	pb,
		const char	tag[],
		int64_t	millisec
	)

static

Definition at line 67 of file ttmlenc.c.

Referenced by ttml_write_packet().

◆ ttml_set_header_values_from_extradata()

static int ttml_set_header_values_from_extradata	(	AVCodecParameters *	par,
		struct TTMLHeaderParameters *	header_params
	)

static

Definition at line 82 of file ttmlenc.c.

Referenced by ttml_write_header().

◆ ttml_write_header()

static int ttml_write_header ( AVFormatContext * ctx )

static

Definition at line 124 of file ttmlenc.c.

◆ ttml_write_packet()

static int ttml_write_packet	(	AVFormatContext *	ctx,
		AVPacket *	pkt
	)

static

Definition at line 161 of file ttmlenc.c.

◆ ttml_write_trailer()

static int ttml_write_trailer ( AVFormatContext * ctx )

static

Definition at line 199 of file ttmlenc.c.

Variable Documentation

◆ ttml_header_text

const char ttml_header_text[]

static

Initial value:

=
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<tt\n"
"%s"
"  xml:lang=\"%s\">\n"
"%s"
"  <body>\n"
"    <div>\n"

Definition at line 53 of file ttmlenc.c.

Referenced by ttml_write_header().

◆ ttml_footer_text

const char ttml_footer_text[]

static

Initial value:

=
"    </div>\n"
"  </body>\n"
"</tt>\n"

Definition at line 62 of file ttmlenc.c.

Referenced by ttml_write_trailer().

◆ ff_ttml_muxer

const FFOutputFormat ff_ttml_muxer

Initial value:

= {
    .p.name            = "ttml",
    .p.long_name       = NULL_IF_CONFIG_SMALL("TTML subtitle"),
    .p.extensions      = "ttml",
    .p.mime_type       = "text/ttml",
    .priv_data_size    = sizeof(TTMLMuxContext),
    .p.flags           = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
                         AVFMT_TS_NONSTRICT,
    .p.video_codec     = AV_CODEC_ID_NONE,
    .p.audio_codec     = AV_CODEC_ID_NONE,
    .p.subtitle_codec  = AV_CODEC_ID_TTML,
    .flags_internal    = FF_OFMT_FLAG_MAX_ONE_OF_EACH |
                         FF_OFMT_FLAG_ONLY_DEFAULT_CODECS,
    .write_header      = ttml_write_header,
    .write_packet      = ttml_write_packet,
    .write_trailer     = ttml_write_trailer,
}

Definition at line 210 of file ttmlenc.c.

Data Structures

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ TTMLPacketType

Function Documentation

◆ ttml_write_time()

◆ ttml_set_header_values_from_extradata()

◆ ttml_write_header()

◆ ttml_write_packet()

◆ ttml_write_trailer()

Variable Documentation

◆ ttml_header_text

◆ ttml_footer_text

◆ ff_ttml_muxer