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91 lines
3 KiB
C
91 lines
3 KiB
C
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/* GStreamer DVB subtitles overlay
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* Copyright (c) 2010 Mart Raudsepp <mart.raudsepp@collabora.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 License
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* as published by the Free Software Foundation; either version 2
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* 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
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* GNU 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 License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_DVBSUB_OVERLAY_H__
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#define __GST_DVBSUB_OVERLAY_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "dvb-sub.h"
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G_BEGIN_DECLS
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#define GST_TYPE_DVBSUB_OVERLAY (gst_dvbsub_overlay_get_type())
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#define GST_DVBSUB_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DVBSUB_OVERLAY,GstDVBSubOverlay))
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#define GST_DVBSUB_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DVBSUB_OVERLAY,GstDVBSubOverlayClass))
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#define GST_IS_DVBSUB_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DVBSUB_OVERLAY))
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#define GST_IS_DVBSUB_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DVBSUB_OVERLAY))
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typedef struct _GstDVBSubOverlay GstDVBSubOverlay;
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typedef struct _GstDVBSubOverlayClass GstDVBSubOverlayClass;
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typedef void (*GstAssRenderBlitFunction) (GstDVBSubOverlay *overlay, DVBSubtitles *subs, GstBuffer *buffer);
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struct _GstDVBSubOverlay
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{
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GstElement element;
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GstPad *video_sinkpad, *text_sinkpad, *srcpad;
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/* properties */
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gboolean enable;
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/* <private> */
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GstSegment video_segment;
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GstSegment subtitle_segment;
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GstVideoFormat format;
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gint width, height;
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gint fps_n, fps_d;
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GstAssRenderBlitFunction blit;
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guint subtitle_buffer; /* FIXME: This should hold the pre-rendered
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* subtitle regions for fast blending on top
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* of each frame. Currently just a number of
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* active regions that ought to get blended,
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* to get all the timing code working,
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* leaving the actual conversion from
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* libdvbsub to a suitable cache format and
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* blending to later */
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GMutex *subtitle_mutex;
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GCond *subtitle_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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* FIXME: Update comment for dvbsub case */
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GstBuffer *subtitle_pending;
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gboolean subtitle_flushing;
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gboolean subtitle_eos;
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GMutex *dvbsub_mutex; /* FIXME: Do we need a mutex lock in case of libdvbsub? Probably, but... */
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DvbSub *dvb_sub;
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gboolean renderer_init_ok;
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};
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struct _GstDVBSubOverlayClass
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{
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GstElementClass parent_class;
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};
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GType gst_dvbsub_overlay_get_type (void);
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G_END_DECLS
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#endif
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