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592c3f222f
Original commit message from CVS: * gst/rtpmanager/gstrtpbin.c: (gst_rtp_bin_associate), (gst_rtp_bin_handle_sync), (create_stream), (free_stream), (new_ssrc_pad_found): Remove internal sync pad, use signals instead to get lip-sync notifications. * gst/rtpmanager/gstrtpjitterbuffer.c: (gst_rtp_jitter_buffer_base_init), (gst_rtp_jitter_buffer_class_init), (gst_rtp_jitter_buffer_internal_links), (create_rtcp_sink), (remove_rtcp_sink), (gst_rtp_jitter_buffer_request_new_pad), (gst_rtp_jitter_buffer_release_pad), (gst_rtp_jitter_buffer_sink_rtcp_event), (gst_rtp_jitter_buffer_chain_rtcp), (gst_rtp_jitter_buffer_get_property): * gst/rtpmanager/gstrtpjitterbuffer.h: Make it possible to send SR packets to the jitterbuffer. Check if the SR timestamps are valid by comparing them to the RTP timestamps. Signal the SR packet and the timing information to listeners. * gst/rtpmanager/gstrtpssrcdemux.c: (create_demux_pad_for_ssrc), (gst_rtp_ssrc_demux_rtcp_chain), (gst_rtp_ssrc_demux_src_query): Remove some unused code. * gst/rtpmanager/rtpjitterbuffer.c: (rtp_jitter_buffer_reset_skew), (calculate_skew), (rtp_jitter_buffer_get_sync): * gst/rtpmanager/rtpjitterbuffer.h: Keep track of the last seen RTP timestamp so that we can filter out invalid SR packets.
101 lines
3.7 KiB
C
101 lines
3.7 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 __RTP_JITTER_BUFFER_H__
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#define __RTP_JITTER_BUFFER_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtcpbuffer.h>
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typedef struct _RTPJitterBuffer RTPJitterBuffer;
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typedef struct _RTPJitterBufferClass RTPJitterBufferClass;
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#define RTP_TYPE_JITTER_BUFFER (rtp_jitter_buffer_get_type())
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#define RTP_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_CAST((src),RTP_TYPE_JITTER_BUFFER,RTPJitterBuffer))
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#define RTP_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),RTP_TYPE_JITTER_BUFFER,RTPJitterBufferClass))
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#define RTP_IS_JITTER_BUFFER(src) (G_TYPE_CHECK_INSTANCE_TYPE((src),RTP_TYPE_JITTER_BUFFER))
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#define RTP_IS_JITTER_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),RTP_TYPE_JITTER_BUFFER))
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#define RTP_JITTER_BUFFER_CAST(src) ((RTPJitterBuffer *)(src))
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/**
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* RTPTailChanged:
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* @jbuf: an #RTPJitterBuffer
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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) (RTPJitterBuffer *jbuf, gpointer user_data);
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#define RTP_JITTER_BUFFER_MAX_WINDOW 512
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/**
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* RTPJitterBuffer:
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*
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* A JitterBuffer in the #RTPSession
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*/
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struct _RTPJitterBuffer {
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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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guint32 clock_rate;
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GstClockTime base_extrtp;
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guint64 ext_rtptime;
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guint64 last_rtptime;
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gint64 window[RTP_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 _RTPJitterBufferClass {
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GObjectClass parent_class;
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};
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GType rtp_jitter_buffer_get_type (void);
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/* managing lifetime */
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RTPJitterBuffer* rtp_jitter_buffer_new (void);
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void rtp_jitter_buffer_reset_skew (RTPJitterBuffer *jbuf);
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gboolean rtp_jitter_buffer_insert (RTPJitterBuffer *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 * rtp_jitter_buffer_peek (RTPJitterBuffer *jbuf);
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GstBuffer * rtp_jitter_buffer_pop (RTPJitterBuffer *jbuf);
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void rtp_jitter_buffer_flush (RTPJitterBuffer *jbuf);
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guint rtp_jitter_buffer_num_packets (RTPJitterBuffer *jbuf);
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guint32 rtp_jitter_buffer_get_ts_diff (RTPJitterBuffer *jbuf);
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void rtp_jitter_buffer_get_sync (RTPJitterBuffer *jbuf, guint64 *rtptime,
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guint64 *timestamp, guint32 *clock_rate,
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guint64 *last_rtptime);
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#endif /* __RTP_JITTER_BUFFER_H__ */
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