1 /*
2  * mpegts_parse.h - GStreamer MPEG transport stream parser
3  * Copyright (C) 2007 Alessandro Decina
4  *
5  * Authors:
6  *   Alessandro Decina <alessandro@nnva.org>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the
20  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21  * Boston, MA 02110-1301, USA.
22  */
23 
24 
25 #ifndef GST_MPEG_TS_PARSE_H
26 #define GST_MPEG_TS_PARSE_H
27 
28 #include <gst/gst.h>
29 #include <gst/base/gstflowcombiner.h>
30 #include "mpegtsbase.h"
31 #include "mpegtspacketizer.h"
32 
33 G_BEGIN_DECLS
34 
35 #define GST_TYPE_MPEGTS_PARSE \
36   (mpegts_parse_get_type())
37 #define GST_MPEGTS_PARSE(obj) \
38   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEGTS_PARSE,MpegTSParse2))
39 #define GST_MPEGTS_PARSE_CLASS(klass) \
40   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEGTS_PARSE,MpegTSParse2Class))
41 #define GST_IS_MPEGTS_PARSE(obj) \
42   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEGTS_PARSE))
43 #define GST_IS_MPEGTS_PARSE_CLASS(klass) \
44   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEGTS_PARSE))
45 
46 typedef struct _MpegTSParse2 MpegTSParse2;
47 typedef struct _MpegTSParse2Class MpegTSParse2Class;
48 
49 struct _MpegTSParse2 {
50   MpegTSBase parent;
51 
52   gboolean have_group_id;
53   guint group_id;
54 
55   GstClockTime smoothing_latency;
56   GstClockTime base_pcr;
57   GstClockTime ts_offset;
58   GstClockTime current_pcr;
59   gint user_pcr_pid;
60   gint pcr_pid;
61 
62   /* Always present source pad */
63   GstPad *srcpad;
64 
65   /* Request source (single program) pads */
66   GList *srcpads;
67 
68   GstFlowCombiner *flowcombiner;
69 
70   /* state */
71   gboolean first;
72   gboolean set_timestamps;
73 
74   /* Pending buffer state */
75   GList *pending_buffers;
76   GstClockTime previous_pcr;
77   guint bytes_since_pcr;
78 };
79 
80 struct _MpegTSParse2Class {
81   MpegTSBaseClass parent_class;
82 };
83 
84 G_GNUC_INTERNAL GType mpegts_parse_get_type(void);
85 
86 G_GNUC_INTERNAL gboolean gst_mpegtsparse_plugin_init (GstPlugin * plugin);
87 
88 G_END_DECLS
89 
90 #endif /* GST_MPEG_TS_PARSE_H */
91