/* GStreamer * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef __RDT_JITTER_BUFFER_H__ #define __RDT_JITTER_BUFFER_H__ #include <gst/gst.h> typedef struct _RDTJitterBuffer RDTJitterBuffer; typedef struct _RDTJitterBufferClass RDTJitterBufferClass; #define RDT_TYPE_JITTER_BUFFER (rdt_jitter_buffer_get_type()) #define RDT_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_CAST((src),RDT_TYPE_JITTER_BUFFER,RDTJitterBuffer)) #define RDT_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),RDT_TYPE_JITTER_BUFFER,RDTJitterBufferClass)) #define RDT_IS_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_TYPE((src),RDT_TYPE_JITTER_BUFFER)) #define RDT_IS_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),RDT_TYPE_JITTER_BUFFER)) #define RDT_JITTER_BUFFER_CAST(src) ((RDTJitterBuffer *)(src)) /** * RTPTailChanged: * @jbuf: an #RDTJitterBuffer * @user_data: user data specified when registering * * This callback will be called when the tail buffer of @jbuf changed. */ typedef void (*RTPTailChanged) (RDTJitterBuffer *jbuf, gpointer user_data); #define RDT_JITTER_BUFFER_MAX_WINDOW 512 /** * RDTJitterBuffer: * * A JitterBuffer in the #RTPSession */ struct _RDTJitterBuffer { GObject object; GQueue *packets; /* for calculating skew */ GstClockTime base_time; GstClockTime base_rtptime; guint64 ext_rtptime; gint64 window[RDT_JITTER_BUFFER_MAX_WINDOW]; guint window_pos; guint window_size; gboolean window_filling; gint64 window_min; gint64 skew; gint64 prev_send_diff; }; struct _RDTJitterBufferClass { GObjectClass parent_class; }; GType rdt_jitter_buffer_get_type (void); /* managing lifetime */ RDTJitterBuffer* rdt_jitter_buffer_new (void); void rdt_jitter_buffer_reset_skew (RDTJitterBuffer *jbuf); gboolean rdt_jitter_buffer_insert (RDTJitterBuffer *jbuf, GstBuffer *buf, GstClockTime time, guint32 clock_rate, gboolean *tail); GstBuffer * rdt_jitter_buffer_peek (RDTJitterBuffer *jbuf); GstBuffer * rdt_jitter_buffer_pop (RDTJitterBuffer *jbuf); void rdt_jitter_buffer_flush (RDTJitterBuffer *jbuf); guint rdt_jitter_buffer_num_packets (RDTJitterBuffer *jbuf); guint32 rdt_jitter_buffer_get_ts_diff (RDTJitterBuffer *jbuf); #endif /* __RDT_JITTER_BUFFER_H__ */