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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
* Copyright (C) <2006> Julien Moutte <julien@moutte.net>
* Copyright (C) <2006> Zeeshan Ali <zeeshan.ali@nokia.com>
* Copyright (C) <2006-2008> Tim-Philipp Müller <tim centricular net>
* Copyright (C) <2009> Young-Ho Cha <ganadist@gmail.com>
* Copyright (C) <2015> British Broadcasting Corporation <dash@rd.bbc.co.uk>
*
* 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.
*/
#ifndef __GST_TTML_RENDER_H__
#define __GST_TTML_RENDER_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <pango/pango.h>
G_BEGIN_DECLS
#define GST_TYPE_TTML_RENDER (gst_ttml_render_get_type())
#define GST_TTML_RENDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
GST_TYPE_TTML_RENDER, GstTtmlRender))
#define GST_TTML_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
GST_TYPE_TTML_RENDER, \
GstTtmlRenderClass))
#define GST_TTML_RENDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
GST_TYPE_TTML_RENDER, \
GstTtmlRenderClass))
#define GST_IS_TTML_RENDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
GST_TYPE_TTML_RENDER))
#define GST_IS_TTML_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
GST_TYPE_TTML_RENDER))
typedef struct _GstTtmlRender GstTtmlRender;
typedef struct _GstTtmlRenderClass GstTtmlRenderClass;
typedef struct _GstTtmlRenderRenderedImage GstTtmlRenderRenderedImage;
struct _GstTtmlRenderRenderedImage {
GstBuffer *image;
gint x;
gint y;
guint width;
guint height;
};
struct _GstTtmlRender {
GstElement element;
GstPad *video_sinkpad;
GstPad *text_sinkpad;
GstPad *srcpad;
GstSegment segment;
GstSegment text_segment;
GstBuffer *text_buffer;
gboolean text_linked;
gboolean video_flushing;
gboolean video_eos;
gboolean text_flushing;
gboolean text_eos;
GMutex lock;
GCond cond; /* to signal removal of a queued text
* buffer, arrival of a text buffer,
* a text segment update, or a change
* in status (e.g. shutdown, flushing) */
GstVideoInfo info;
GstVideoFormat format;
gint width;
gint height;
gboolean want_background;
gboolean wait_text;
gboolean need_render;
PangoLayout *layout;
GList * compositions;
};
struct _GstTtmlRenderClass {
GstElementClass parent_class;
PangoContext *pango_context;
GMutex *pango_lock;
};
GType gst_ttml_render_get_type(void) G_GNUC_CONST;
G_END_DECLS
#endif /* __GST_TTML_RENDER_H */
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