gstreamer/subprojects/gst-plugins-good/gst/isomp4/qtdemux-webvtt.h
Jan Schmidt 6cada5b064 qtdemux: Add support for wvtt (WebVTT) subtitles.
WebVTT in ISO MP4 is specified in ISO 14496-30,
and needed for DASH support. It's stored in an
mp4 specific format. To handle it compatibly,
the wvtt boxes are converted back into WebVTT text
and pushed as application/x-subtitle-vtt

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1182>
2021-10-19 08:56:58 +00:00

32 lines
1.1 KiB
C

/* GStreamer
* Copyright (C) <2021> Jan Schmidt <jan@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <gst/gst.h>
#include "qtdemux.h"
#ifndef __QTDEMUX_WEBVTT_H__
#define __QTDEMUX_WEBVTT_H__
G_BEGIN_DECLS
gboolean qtdemux_webvtt_is_empty(GstQTDemux *demux, guint8 *data, gsize size);
GstBuffer *qtdemux_webvtt_decode (GstQTDemux * qtdemux, GstClockTime start, GstClockTime duration, guint8 *data, gsize size);
G_END_DECLS
#endif