1 /* GStreamer DVB subtitles overlay 2 * Copyright (c) 2010 Mart Raudsepp <mart.raudsepp@collabora.co.uk> 3 * Copyright (c) 2010 ONELAN Ltd. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_DVBSUB_OVERLAY_H__ 21 #define __GST_DVBSUB_OVERLAY_H__ 22 23 #include <gst/gst.h> 24 #include <gst/video/video.h> 25 #include <gst/video/video-overlay-composition.h> 26 27 #include "dvb-sub.h" 28 29 G_BEGIN_DECLS 30 31 #define GST_TYPE_DVBSUB_OVERLAY (gst_dvbsub_overlay_get_type()) 32 #define GST_DVBSUB_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DVBSUB_OVERLAY,GstDVBSubOverlay)) 33 #define GST_DVBSUB_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DVBSUB_OVERLAY,GstDVBSubOverlayClass)) 34 #define GST_IS_DVBSUB_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DVBSUB_OVERLAY)) 35 #define GST_IS_DVBSUB_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DVBSUB_OVERLAY)) 36 37 typedef struct _GstDVBSubOverlay GstDVBSubOverlay; 38 typedef struct _GstDVBSubOverlayClass GstDVBSubOverlayClass; 39 40 struct _GstDVBSubOverlay 41 { 42 GstElement element; 43 44 GstPad *video_sinkpad, *text_sinkpad, *srcpad; 45 46 /* properties */ 47 gboolean enable; 48 gint max_page_timeout; 49 gboolean force_end; 50 51 /* <private> */ 52 GstSegment video_segment; 53 GstSegment subtitle_segment; 54 55 GstVideoInfo info; 56 57 DVBSubtitles *current_subtitle; /* The currently active set of subtitle regions, if any */ 58 GstVideoOverlayComposition *current_comp; 59 GQueue *pending_subtitles; /* A queue of raw subtitle region sets with 60 * metadata that are waiting their running time */ 61 62 GMutex dvbsub_mutex; /* protects the queue and the DvbSub instance */ 63 DvbSub *dvb_sub; 64 65 /* subtitle data submitted to dvb_sub but no sub received yet */ 66 gboolean pending_sub; 67 /* last text pts */ 68 GstClockTime last_text_pts; 69 70 gboolean attach_compo_to_buffer; 71 }; 72 73 struct _GstDVBSubOverlayClass 74 { 75 GstElementClass parent_class; 76 }; 77 78 GType gst_dvbsub_overlay_get_type (void); 79 80 G_END_DECLS 81 82 #endif 83