1 /* OGG muxer plugin for GStreamer
2 * Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
3 * Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
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 GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
21 #ifndef __GST_OGG_MUX_H__
22 #define __GST_OGGEMUX_H__
27 #include <gst/base/gstcollectpads.h>
31 #define GST_TYPE_OGG_MUX (gst_ogg_mux_get_type())
32 #define GST_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_MUX, GstOggMux))
33 #define GST_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_MUX, GstOggMux))
34 #define GST_IS_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_MUX))
35 #define GST_IS_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_MUX))
37 typedef struct _GstOggMux GstOggMux;
38 typedef struct _GstOggMuxClass GstOggMuxClass;
42 GST_OGG_PAD_STATE_CONTROL = 0,
43 GST_OGG_PAD_STATE_DATA = 1
47 /* all information needed for one ogg stream */
50 GstCollectData collect; /* we extend the CollectData */
52 /* These two buffers make a very simple queue - they enter as 'next_buffer'
53 * and (usually) leave as 'buffer', except at EOS, when buffer will be NULL */
54 GstBuffer *buffer; /* the first waiting buffer for the pad */
55 GstBuffer *next_buffer; /* the second waiting buffer for the pad */
58 ogg_stream_state stream;
59 gint64 packetno; /* number of next packet */
60 gint64 pageno; /* number of next page */
61 guint64 duration; /* duration of current page */
64 GstClockTime timestamp; /* timestamp of the first packet on the next
65 * page to be dequeued */
66 GstClockTime timestamp_end; /* end timestamp of last complete packet on
67 the next page to be dequeued */
68 GstClockTime gp_time; /* time corresponding to the gp value of the
69 last complete packet on the next page to be
72 GstOggPadState state; /* state of the pad */
76 GQueue *pagebuffers; /* List of pages in buffers ready for pushing */
78 gboolean new_page; /* starting a new page */
79 gboolean first_delta; /* was the first packet in the page a delta */
80 gboolean prev_delta; /* was the previous buffer a delta frame */
82 GstPadEventFunction collect_event;
84 gboolean always_flush_page;
91 * The ogg muxer object structure.
101 GstCollectPads *collect;
103 /* number of pads which have not received EOS */
106 /* the pad we are currently using to fill a page */
107 GstOggPadData *pulling;
109 /* next timestamp for the page */
110 GstClockTime next_ts;
112 /* Last timestamp actually output on src pad */
113 GstClockTime last_ts;
115 /* offset in stream */
119 gboolean need_headers;
122 guint64 max_page_delay;
124 GstOggPadData *delta_pad; /* when a delta frame is detected on a stream, we mark
125 pages as delta frames up to the page that has the
130 struct _GstOggMuxClass
132 GstElementClass parent_class;
135 GType gst_ogg_mux_get_type (void);
137 gboolean gst_ogg_mux_plugin_init (GstPlugin * plugin);
141 #endif /* __GST_OGG_MUX_H__ */