1 /*
2  * Copyright (c) 2008 Benjamin Schmitz <vortex@wolpzone.de>
3  * Copyright (c) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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_ASS_RENDER_H__
21 #define __GST_ASS_RENDER_H__
22 
23 #include <gst/gst.h>
24 #include <gst/video/video.h>
25 #include <gst/video/video-overlay-composition.h>
26 
27 #include <ass/ass.h>
28 #include <ass/ass_types.h>
29 
30 G_BEGIN_DECLS
31 
32 #if !defined(LIBASS_VERSION) || LIBASS_VERSION < 0x00907010
33 #define ASS_Library ass_library_t
34 #define ASS_Renderer ass_renderer_t
35 #define ASS_Track ass_track_t
36 #define ASS_Image ass_image_t
37 #endif
38 
39 #define GST_TYPE_ASS_RENDER (gst_ass_render_get_type())
40 #define GST_ASS_RENDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASS_RENDER,GstAssRender))
41 #define GST_ASS_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASS_RENDER,GstAssRenderClass))
42 #define GST_ASS_RENDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), \
43     GST_TYPE_ASS_RENDER, GstAssRenderClass))
44 #define GST_IS_ASS_RENDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASS_RENDER))
45 #define GST_IS_ASS_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASS_RENDER))
46 
47 typedef struct _GstAssRender GstAssRender;
48 typedef struct _GstAssRenderClass GstAssRenderClass;
49 
50 struct _GstAssRender
51 {
52   GstElement element;
53 
54   GstPad *video_sinkpad, *text_sinkpad, *srcpad;
55 
56   /* properties */
57   gboolean enable, embeddedfonts;
58   gboolean wait_text;
59 
60   /* <private> */
61   GMutex lock;
62   GCond cond;
63 
64   GstSegment video_segment;
65   gboolean video_flushing;
66   gboolean video_eos;
67 
68   GstVideoInfo info;
69 
70   GSList *subtitle_pending;
71   gboolean subtitle_flushing;
72   gboolean subtitle_eos;
73   GstSegment subtitle_segment;
74 
75   GMutex ass_mutex;
76   ASS_Library *ass_library;
77   ASS_Renderer *ass_renderer;
78   ASS_Track *ass_track;
79   gint ass_frame_width, ass_frame_height;
80 
81   gboolean renderer_init_ok, track_init_ok;
82   gboolean need_process;
83 
84   /* overlay stuff */
85   GstVideoOverlayComposition *composition;
86   guint window_width, window_height;
87   gboolean attach_compo_to_buffer;
88 };
89 
90 struct _GstAssRenderClass
91 {
92   GstElementClass parent_class;
93 };
94 
95 GType gst_ass_render_get_type (void);
96 
97 G_END_DECLS
98 
99 #endif
100