2 * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #ifndef __RDT_JITTER_BUFFER_H__
21 #define __RDT_JITTER_BUFFER_H__
25 typedef struct _RDTJitterBuffer RDTJitterBuffer;
26 typedef struct _RDTJitterBufferClass RDTJitterBufferClass;
28 #define RDT_TYPE_JITTER_BUFFER (rdt_jitter_buffer_get_type())
29 #define RDT_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_CAST((src),RDT_TYPE_JITTER_BUFFER,RDTJitterBuffer))
30 #define RDT_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),RDT_TYPE_JITTER_BUFFER,RDTJitterBufferClass))
31 #define RDT_IS_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_TYPE((src),RDT_TYPE_JITTER_BUFFER))
32 #define RDT_IS_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),RDT_TYPE_JITTER_BUFFER))
33 #define RDT_JITTER_BUFFER_CAST(src) ((RDTJitterBuffer *)(src))
37 * @jbuf: an #RDTJitterBuffer
38 * @user_data: user data specified when registering
40 * This callback will be called when the tail buffer of @jbuf changed.
42 typedef void (*RTPTailChanged) (RDTJitterBuffer *jbuf, gpointer user_data);
44 #define RDT_JITTER_BUFFER_MAX_WINDOW 512
48 * A JitterBuffer in the #RTPSession
50 struct _RDTJitterBuffer {
55 /* for calculating skew */
56 GstClockTime base_time;
57 GstClockTime base_rtptime;
59 gint64 window[RDT_JITTER_BUFFER_MAX_WINDOW];
62 gboolean window_filling;
65 gint64 prev_send_diff;
68 struct _RDTJitterBufferClass {
69 GObjectClass parent_class;
72 GType rdt_jitter_buffer_get_type (void);
74 /* managing lifetime */
75 RDTJitterBuffer* rdt_jitter_buffer_new (void);
77 void rdt_jitter_buffer_reset_skew (RDTJitterBuffer *jbuf);
79 gboolean rdt_jitter_buffer_insert (RDTJitterBuffer *jbuf, GstBuffer *buf,
83 GstBuffer * rdt_jitter_buffer_peek (RDTJitterBuffer *jbuf);
84 GstBuffer * rdt_jitter_buffer_pop (RDTJitterBuffer *jbuf);
86 void rdt_jitter_buffer_flush (RDTJitterBuffer *jbuf);
88 guint rdt_jitter_buffer_num_packets (RDTJitterBuffer *jbuf);
89 guint32 rdt_jitter_buffer_get_ts_diff (RDTJitterBuffer *jbuf);
91 #endif /* __RDT_JITTER_BUFFER_H__ */