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6fb8002cab
Original commit message from CVS: * gst/realmedia/Makefile.am: * gst/realmedia/gstrdtbuffer.c: (gst_rdt_buffer_validate_data), (gst_rdt_buffer_validate), (gst_rdt_buffer_get_packet_count), (read_packet_header), (gst_rdt_buffer_get_first_packet), (gst_rdt_packet_move_to_next), (gst_rdt_packet_get_type), (gst_rdt_packet_get_length), (gst_rdt_packet_to_buffer), (gst_rdt_buffer_compare_seqnum), (gst_rdt_packet_data_get_seq), (gst_rdt_packet_data_peek_data), (gst_rdt_packet_data_get_stream_id), (gst_rdt_packet_data_get_timestamp): * gst/realmedia/gstrdtbuffer.h: Add first support for parsing RDT messages. * gst/realmedia/rdtjitterbuffer.c: (rdt_jitter_buffer_class_init), (rdt_jitter_buffer_init), (rdt_jitter_buffer_finalize), (rdt_jitter_buffer_new), (rdt_jitter_buffer_reset_skew), (calculate_skew), (rdt_jitter_buffer_insert), (rdt_jitter_buffer_pop), (rdt_jitter_buffer_peek), (rdt_jitter_buffer_flush), (rdt_jitter_buffer_num_packets), (rdt_jitter_buffer_get_ts_diff): * gst/realmedia/rdtjitterbuffer.h: Add first version of an RDT jitterbuffer.
91 lines
3.3 KiB
C
91 lines
3.3 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __RDT_JITTER_BUFFER_H__
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#define __RDT_JITTER_BUFFER_H__
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#include <gst/gst.h>
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typedef struct _RDTJitterBuffer RDTJitterBuffer;
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typedef struct _RDTJitterBufferClass RDTJitterBufferClass;
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#define RDT_TYPE_JITTER_BUFFER (rdt_jitter_buffer_get_type())
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#define RDT_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_CAST((src),RDT_TYPE_JITTER_BUFFER,RDTJitterBuffer))
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#define RDT_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),RDT_TYPE_JITTER_BUFFER,RDTJitterBufferClass))
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#define RDT_IS_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_TYPE((src),RDT_TYPE_JITTER_BUFFER))
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#define RDT_IS_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),RDT_TYPE_JITTER_BUFFER))
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#define RDT_JITTER_BUFFER_CAST(src) ((RDTJitterBuffer *)(src))
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/**
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* RTPTailChanged:
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* @jbuf: an #RDTJitterBuffer
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* @user_data: user data specified when registering
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*
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* This callback will be called when the tail buffer of @jbuf changed.
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*/
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typedef void (*RTPTailChanged) (RDTJitterBuffer *jbuf, gpointer user_data);
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#define RDT_JITTER_BUFFER_MAX_WINDOW 512
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/**
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* RDTJitterBuffer:
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*
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* A JitterBuffer in the #RTPSession
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*/
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struct _RDTJitterBuffer {
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GObject object;
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GQueue *packets;
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/* for calculating skew */
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GstClockTime base_time;
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GstClockTime base_rtptime;
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guint64 ext_rtptime;
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gint64 window[RDT_JITTER_BUFFER_MAX_WINDOW];
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guint window_pos;
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guint window_size;
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gboolean window_filling;
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gint64 window_min;
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gint64 skew;
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gint64 prev_send_diff;
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};
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struct _RDTJitterBufferClass {
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GObjectClass parent_class;
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};
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GType rdt_jitter_buffer_get_type (void);
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/* managing lifetime */
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RDTJitterBuffer* rdt_jitter_buffer_new (void);
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void rdt_jitter_buffer_reset_skew (RDTJitterBuffer *jbuf);
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gboolean rdt_jitter_buffer_insert (RDTJitterBuffer *jbuf, GstBuffer *buf,
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GstClockTime time,
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guint32 clock_rate,
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gboolean *tail);
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GstBuffer * rdt_jitter_buffer_peek (RDTJitterBuffer *jbuf);
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GstBuffer * rdt_jitter_buffer_pop (RDTJitterBuffer *jbuf);
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void rdt_jitter_buffer_flush (RDTJitterBuffer *jbuf);
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guint rdt_jitter_buffer_num_packets (RDTJitterBuffer *jbuf);
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guint32 rdt_jitter_buffer_get_ts_diff (RDTJitterBuffer *jbuf);
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#endif /* __RDT_JITTER_BUFFER_H__ */
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