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109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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* Copyright (C) <2006> Julien Moutte <julien@moutte.net>
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* Copyright (C) <2006> Zeeshan Ali <zeeshan.ali@nokia.com>
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* Copyright (C) <2006-2008> Tim-Philipp Müller <tim centricular net>
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* Copyright (C) <2009> Young-Ho Cha <ganadist@gmail.com>
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* Copyright (C) <2015> British Broadcasting Corporation <dash@rd.bbc.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_TTML_RENDER_H__
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#define __GST_TTML_RENDER_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <pango/pango.h>
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G_BEGIN_DECLS
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#define GST_TYPE_TTML_RENDER (gst_ttml_render_get_type())
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#define GST_TTML_RENDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
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GST_TYPE_TTML_RENDER, GstTtmlRender))
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#define GST_TTML_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
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GST_TYPE_TTML_RENDER, \
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GstTtmlRenderClass))
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#define GST_TTML_RENDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
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GST_TYPE_TTML_RENDER, \
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GstTtmlRenderClass))
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#define GST_IS_TTML_RENDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
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GST_TYPE_TTML_RENDER))
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#define GST_IS_TTML_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
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GST_TYPE_TTML_RENDER))
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typedef struct _GstTtmlRender GstTtmlRender;
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typedef struct _GstTtmlRenderClass GstTtmlRenderClass;
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typedef struct _GstTtmlRenderRenderedImage GstTtmlRenderRenderedImage;
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struct _GstTtmlRenderRenderedImage {
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GstBuffer *image;
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gint x;
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gint y;
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guint width;
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guint height;
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};
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struct _GstTtmlRender {
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GstElement element;
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GstPad *video_sinkpad;
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GstPad *text_sinkpad;
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GstPad *srcpad;
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GstSegment segment;
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GstSegment text_segment;
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GstBuffer *text_buffer;
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gboolean text_linked;
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gboolean video_flushing;
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gboolean video_eos;
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gboolean text_flushing;
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gboolean text_eos;
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GMutex lock;
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GCond cond; /* to signal removal of a queued text
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* buffer, arrival of a text buffer,
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* a text segment update, or a change
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* in status (e.g. shutdown, flushing) */
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GstVideoInfo info;
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GstVideoFormat format;
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gint width;
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gint height;
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gboolean want_background;
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gboolean wait_text;
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gboolean need_render;
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PangoLayout *layout;
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GList * compositions;
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};
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struct _GstTtmlRenderClass {
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GstElementClass parent_class;
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PangoContext *pango_context;
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GMutex *pango_lock;
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};
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GType gst_ttml_render_get_type(void) G_GNUC_CONST;
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G_END_DECLS
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#endif /* __GST_TTML_RENDER_H */
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