webvttenc.c File Reference

#include <stdarg.h>
#include "avcodec.h"
#include "libavutil/bprint.h"
#include "ass_split.h"
#include "ass.h"
#include "codec_internal.h"

Go to the source code of this file.

Data Structures
struct	WebVTTContext

Macros
#define	WEBVTT_STACK_SIZE   64

Functions
static	av_printf_format (2, 3)
static int	webvtt_stack_push (WebVTTContext *s, const char c)
static char	webvtt_stack_pop (WebVTTContext *s)
static int	webvtt_stack_find (WebVTTContext *s, const char c)
static void	webvtt_close_tag (WebVTTContext *s, char tag)
static void	webvtt_stack_push_pop (WebVTTContext *s, const char c, int close)
static void	webvtt_style_apply (WebVTTContext *s, const char *style)
static void	webvtt_text_cb (void *priv, const char *text, int len)
static void	webvtt_new_line_cb (void *priv, int forced)
static void	webvtt_style_cb (void *priv, char style, int close)
static void	webvtt_cancel_overrides_cb (void *priv, const char *style)
static void	webvtt_end_cb (void *priv)
static int	webvtt_encode_frame (AVCodecContext *avctx, unsigned char *buf, int bufsize, const AVSubtitle *sub)
static av_cold int	webvtt_encode_close (AVCodecContext *avctx)
static av_cold int	webvtt_encode_init (AVCodecContext *avctx)

Variables
static const ASSCodesCallbacks	webvtt_callbacks
const FFCodec	ff_webvtt_encoder

Macro Definition Documentation

WEBVTT_STACK_SIZE

#define WEBVTT_STACK_SIZE   64

Definition at line 30 of file webvttenc.c.

Referenced by webvtt_stack_push().

Function Documentation

av_printf_format()

static av_printf_format ( 2 , 3  )

static

Definition at line 41 of file webvttenc.c.

webvtt_stack_push()

static int webvtt_stack_push ( WebVTTContext * s, const char c )

static

Definition at line 49 of file webvttenc.c.

Referenced by webvtt_stack_push_pop(), and webvtt_style_apply().

webvtt_stack_pop()

static char webvtt_stack_pop ( WebVTTContext * s )

static

Definition at line 57 of file webvttenc.c.

Referenced by webvtt_stack_push_pop().

webvtt_stack_find()

static int webvtt_stack_find ( WebVTTContext * s, const char c )

static

Definition at line 64 of file webvttenc.c.

Referenced by webvtt_stack_push_pop().

webvtt_close_tag()

static void webvtt_close_tag ( WebVTTContext * s, char tag )

static

Definition at line 73 of file webvttenc.c.

Referenced by webvtt_stack_push_pop().

webvtt_stack_push_pop()

static void webvtt_stack_push_pop ( WebVTTContext * s, const char c, int close )

static

Definition at line 78 of file webvttenc.c.

Referenced by webvtt_cancel_overrides_cb(), webvtt_end_cb(), and webvtt_style_cb().

webvtt_style_apply()

static void webvtt_style_apply ( WebVTTContext * s, const char * style )

static

Definition at line 90 of file webvttenc.c.

Referenced by webvtt_cancel_overrides_cb(), and webvtt_encode_frame().

webvtt_text_cb()

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

static

Definition at line 109 of file webvttenc.c.

webvtt_new_line_cb()

static void webvtt_new_line_cb ( void * priv, int forced )

static

Definition at line 115 of file webvttenc.c.

webvtt_style_cb()

static void webvtt_style_cb ( void * priv, char style, int close )

static

Definition at line 120 of file webvttenc.c.

webvtt_cancel_overrides_cb()

static void webvtt_cancel_overrides_cb ( void * priv, const char * style )

static

Definition at line 130 of file webvttenc.c.

webvtt_end_cb()

static void webvtt_end_cb ( void * priv )

static

Definition at line 136 of file webvttenc.c.

webvtt_encode_frame()

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

static

Definition at line 154 of file webvttenc.c.

webvtt_encode_close()

static av_cold int webvtt_encode_close ( AVCodecContext * avctx )

static

Definition at line 190 of file webvttenc.c.

webvtt_encode_init()

static av_cold int webvtt_encode_init ( AVCodecContext * avctx )

static

Definition at line 197 of file webvttenc.c.

Variable Documentation

webvtt_callbacks

const ASSCodesCallbacks webvtt_callbacks

static

Initial value:

= {
    .text             = webvtt_text_cb,
    .new_line         = webvtt_new_line_cb,
    .style            = webvtt_style_cb,
    .color            = NULL,
    .font_name        = NULL,
    .font_size        = NULL,
    .alignment        = NULL,
    .cancel_overrides = webvtt_cancel_overrides_cb,
    .move             = NULL,
    .end              = webvtt_end_cb,
}

Definition at line 141 of file webvttenc.c.

Referenced by webvtt_encode_frame().

ff_webvtt_encoder

const FFCodec ff_webvtt_encoder

Initial value:

= {
    .p.name         = "webvtt",
    CODEC_LONG_NAME("WebVTT subtitle"),
    .p.type         = AVMEDIA_TYPE_SUBTITLE,
    .p.id           = AV_CODEC_ID_WEBVTT,
    .priv_data_size = sizeof(WebVTTContext),
    .init           = webvtt_encode_init,
    FF_CODEC_ENCODE_SUB_CB(webvtt_encode_frame),
    .close          = webvtt_encode_close,
}

Definition at line 205 of file webvttenc.c.