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/* -*- C++ -*- */
/*-
* Copyright (c) 1993-1994 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and the Network Research Group at
* Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
//=============================================================================
/**
* @file RTCP.h
*
* $Id$
*
* @author Nagarajan Surendran <naga@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_AV_RTCP_H
#define TAO_AV_RTCP_H
#include /**/ "ace/pre.h"
// FUZZ: disable check_for_math_include
#include "ace/OS.h"
#include "ace/Hash_Map_Manager.h"
#include "orbsvcs/AV/AVStreams_i.h"
#include "orbsvcs/AV/UDP.h"
#include <math.h>
#include <stdlib.h>
#include "orbsvcs/AV/RTP.h"
#include "RTCP_Channel.h"
class TAO_AV_RTCP_Callback;
/**
* @class TAO_AV_RTCP
* @brief Encapsulate the header format for the Real Time Control
* Protocol (RTCP)
*/
class TAO_AV_Export TAO_AV_RTCP
{
public:
struct rtcphdr
{
ACE_UINT16 rh_flags; /* T:2 P:1 CNT:5 PT:8 */
ACE_UINT16 rh_len; /* length of message (in bytes) */
ACE_UINT32 rh_ssrc; /* synchronization src id */
};
struct ntp64
{
ACE_UINT32 upper; /* more significant 32 bits */
ACE_UINT32 lower; /* less significant 32 bits */
};
struct md5_string
{
int type;
ACE_Time_Value tv;
pid_t pid;
pid_t pgid;
pid_t ppid;
uid_t uid;
gid_t gid;
};
static void send_report (ACE_Message_Block *mb);
static ACE_UINT32 alloc_srcid (ACE_UINT32 addr);
static double rtcp_interval (int members,
int senders,
double rtcp_bw,
int we_sent,
int packet_size,
int *avg_rtcp_size,
int initial);
};
/**
* @class TAO_AV_RTCP_Flow_Factory
* @brief
*/
class TAO_AV_Export TAO_AV_RTCP_Flow_Factory
:public TAO_AV_Flow_Protocol_Factory
{
public:
TAO_AV_RTCP_Flow_Factory (void);
virtual ~TAO_AV_RTCP_Flow_Factory (void);
virtual int init (int argc, char *argv[]);
virtual int match_protocol (const char *flow_string);
virtual TAO_AV_Protocol_Object* make_protocol_object (TAO_FlowSpec_Entry *entry,
TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Flow_Handler *handler,
TAO_AV_Transport *transport);
};
class TAO_AV_Callback;
/**
* @class TAO_AV_RTCP_Callback
* @brief TAO_AV_Callback for RTCP protocol
*/
class TAO_AV_Export TAO_AV_RTCP_Callback : public TAO_AV_Callback
{
public:
/// RTCP callback.
TAO_AV_RTCP_Callback (void);
/// virtual destructor.
virtual ~TAO_AV_RTCP_Callback (void);
/// Called during Streamctrl->start.
virtual int handle_start (void);
/// Called during Streamctrl->stop.
virtual int handle_stop (void);
/// Called during timeout for Flow Producers.
virtual int handle_timeout (void *arg);
/// Called when a frame arrives for a FlowConsumer.
virtual int receive_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *frame_info = 0,
const ACE_Addr &peer_address = ACE_Addr::sap_any);
int send_frame (ACE_Message_Block *frame);
virtual int receive_control_frame (ACE_Message_Block *frame,
const ACE_Addr &peer_address = ACE_Addr::sap_any);
/// Called during Streamctrl->destroy i.e tear_down of the stream
/// @@coryan:Call it handle_destroy or handle_close.
virtual int handle_destroy (void);
/// Called to get the timeout. If tv is 0 then the framework stop
/// calling this.
virtual void get_timeout (ACE_Time_Value *&tv,
void *&arg);
int send_report(int bye);
void schedule (int ms);
TAO_AV_RTP_State *state (void);
void ts_offset (ACE_UINT32 offset);
protected:
ACE_Hash_Map_Manager<ACE_UINT32, RTCP_Channel_In*, ACE_Null_Mutex> inputs_;
RTCP_Channel_Out output_;
int timeout_;
int timestamp_offset_;
int sdes_count_;
int is_initial_timeout_;
int avg_rtcp_size_;
int packet_size_;
};
class RTP_Packet;
/**
* @class TAO_AV_RTCP_Object
* @brief TAO_AV_Protocol_Object for RTCP protocol
*/
class TAO_AV_Export TAO_AV_RTCP_Object
: public TAO_AV_Protocol_Object
{
public:
/// constructor.
TAO_AV_RTCP_Object (TAO_AV_Callback *client_cb,
TAO_AV_RTCP_Callback *&rtcp_cb,
TAO_AV_Transport *transport = 0);
/// Destructor
virtual ~TAO_AV_RTCP_Object (void);
virtual int handle_input (void);
virtual int handle_control_input (ACE_Message_Block *frame,
const ACE_Addr &peer_address);
virtual int handle_control_output (ACE_Message_Block *frame);
/// set/get policies.
virtual int set_policies (const TAO_AV_PolicyList &policy_list);
/// start/stop the flow.
virtual int start (void);
virtual int stop (void);
/// send a data frame.
virtual int send_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *frame_info = 0);
/// send a frame in iovecs.
virtual int send_frame (const iovec *iov,
int iovcnt,
TAO_AV_frame_info *frame_info = 0);
virtual int send_frame (const char*buf,
size_t len);
/// end the stream.
virtual int destroy (void);
void ssrc (ACE_UINT32 ssrc) {this->ssrc_ = ssrc; }
ACE_UINT32 ssrc (void) { return this->ssrc_; }
void ts_offset (ACE_UINT32 ts_offset);
private:
TAO_AV_Callback *client_cb_;
TAO_AV_RTCP_Callback rtcp_cb_;
ACE_UINT32 ssrc_;
};
ACE_STATIC_SVC_DECLARE (TAO_AV_RTCP_Flow_Factory)
ACE_FACTORY_DECLARE (TAO_AV, TAO_AV_RTCP_Flow_Factory)
#include /**/ "ace/post.h"
#endif /* TAO_AV_RTCP_H */
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