/*?
?*?rtpdemo:?A?simple?rtp?application?that?sends?and?receives?data.
?*
?*?（C）?2000-2001?University?College?London.
?*/

#include?

#include?
#include?
#include?
#include?
#include?
#include?

#include?“uclconf.h“
#include?“config_unix.h“
#include?“config_win32.h“
#include?“debug.h“
#include?“memory.h“
#include?“rtp.h“

static?void?
usage（）?
{
	printf（“Usage:?rtpdemo?[switches]?address?port\n“）;
	printf（“Valid?switches?are:\n“）;
	printf（“??-f\t\tFilter?local?packets?out?of?receive?stream.\n“）;
	printf（“??-l\t\tListen?and?do?not?transmit?data.\n“）;
	exit（-1）;
}

/*?-------------------------------------------------------------------------?*/
/*?RTP?callback?related?*/

static?void
sdes_print（struct?rtp?*session?uint32_t?ssrc?rtcp_sdes_type?stype）?{
	const?char?*sdes_type_names[]?=?{
		“end“?“cname“?“name“?“email“?“telephone“?
		“location“?“tool“?“note“?“priv“
	};
	const?uint8_t?n?=?sizeof（sdes_type_names）?/?sizeof（sdes_type_names[0]）;

	if?（stype?>?n）?{
		/*?Theoretically?impossible?*/
		printf（“boo!?invalud?sdes?field?%d\n“?stype）;
		return;
	}
	
	printf（“SSRC?0x%08x?reported?SDES?type?%s?-?“?ssrc?
	???????sdes_type_names[stype]）;

	if?（stype?==?RTCP_SDES_PRIV）?{
		/*?Requires?extra-handling?not?important?for?example?*/
		printf（“don‘t?know?how?to?display.\n“）;
	}?else?{
		printf（“%s\n“?rtp_get_sdes（session?ssrc?stype））;
	}
}

static?void
packet_print（struct?rtp?*session?rtp_packet?*p）?
{
	printf（“Received?data?（payload?%d?timestamp?%06d?size?%d）?“?p->pt?p->ts?p->data_len）;

	if?（p->ssrc?==?rtp_my_ssrc（session））?{
		/*?Unless?filtering?is?enabled?we?are?likely?to?see
		???out?packets?if?sending?to?a?multicast?group.?*/
		printf（“that?I?just?sent.\n“）;
	}?else?{
		printf（“from?SSRC?0x%08x\n“?p->ssrc）;?
	}?
}

static?void
rtp_event_handler（struct?rtp?*session?rtp_event?*e）?
{
	rtp_packet	*p;
	rtcp_sdes_item	*r;

	switch（e->type）?{
	case?RX_RTP:?	
		p?=?（rtp_packet*）e->data;
		packet_print（session?p）;
		xfree（p）;?/*?xfree（）?is?mandatory?to?release?RTP?packet?data?*/
		break;
	case?RX_SDES:
		r?=?（rtcp_sdes_item*）e->data;
		sdes_print（session?e->ssrc?r->type）;
		break;
	case?RX_BYE:
		break;
	case?SOURCE_CREATED:
		printf（“New?source?created?SSRC?=?0x%08x\n“?e->ssrc）;
		break;
	case?SOURCE_DELETED:
		printf（“Source?deleted?SSRC?=?0x%08x\n“?e->ssrc）;
		break;
	case?RX_SR:
	case?RX_RR:
	case?RX_RR_EMPTY:
	case?RX_RTCP_START:
	case?RX_RTCP_FINISH:
	case?RR_TIMEOUT:
	case?RX_APP:
		break;
	}
	fflush（stdout）;
}

/*?-------------------------------------------------------------------------?*/
/*?Send?and?receive?loop.??Sender?use?20ms?audio?mulaw?packets?*/

#define?MULAW_BYTES	4?*?160
#define?MULAW_PAYLOAD	0
#define?MULAW_MS	4?*?20

#define?MAX_ROUNDS	100

static?void
rxtx_loop（struct?rtp*?session?int?send_enable）?
{
	struct?timeval	t

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????525??2001-05-10?20:25??common-1.2.14\Makefile.in
?????文件?????????108??2001-03-10?14:54??common-1.2.14\.cvsignore
?????文件????????1966??2000-01-04?13:27??common-1.2.14\COPYRIGHT
?????文件???????20668??2003-05-23?12:43??common-1.2.14\MODS
?????文件???????27653??1999-11-18?22:49??common-1.2.14\config.guess
?????文件?????????416??2001-03-10?14:54??common-1.2.14\README
?????文件???????????8??2003-05-23?12:42??common-1.2.14\VERSION
?????文件?????????535??1998-11-14?17:46??common-1.2.14\common.dsw
?????文件???????10330??2003-04-02?12:03??common-1.2.14\configure.in
?????文件???????20769??1999-11-18?22:49??common-1.2.14\config.sub
?????文件???????85626??2003-04-02?12:16??common-1.2.14\configure
?????目錄???????????0??2003-05-23?12:49??common-1.2.14\doc\
?????目錄???????????0??2003-05-23?12:49??common-1.2.14\doc\html\
?????文件????????3492??2001-04-01?23:18??common-1.2.14\doc\html\uclmmbase.html
?????文件????????2276??2001-04-01?23:18??common-1.2.14\doc\html\book1.html
?????文件????????6138??2001-03-26?21:47??common-1.2.14\doc\html\uclmmbase-hmac.html
?????文件????????9108??2001-03-26?21:47??common-1.2.14\doc\html\uclmmbase-md5.html
?????文件???????22600??2001-03-26?21:47??common-1.2.14\doc\html\uclmmbase-net-udp.html
?????文件???????81144??2001-04-04?14:36??common-1.2.14\doc\html\uclmmbase-rtp.html
?????文件?????????703??2001-03-10?14:54??common-1.2.14\doc\Makefile.in
?????文件????????3123??2001-03-10?17:19??common-1.2.14\doc\README
?????目錄???????????0??2003-05-23?12:49??common-1.2.14\doc\tmpl\
?????文件????????1250??2001-03-10?14:54??common-1.2.14\doc\tmpl\config_unix.sgml
?????文件?????????299??2001-03-10?14:54??common-1.2.14\doc\tmpl\acconfig.sgml
?????文件????????2237??2001-03-10?14:54??common-1.2.14\doc\tmpl\addrinfo.sgml
?????文件?????????291??2001-03-10?14:54??common-1.2.14\doc\tmpl\addrsize.sgml
?????文件?????????861??2001-03-10?14:54??common-1.2.14\doc\tmpl\asarray.sgml
?????文件?????????500??2001-03-10?14:54??common-1.2.14\doc\tmpl\base64.sgml
?????文件?????????416??2001-03-10?14:54??common-1.2.14\doc\tmpl\bittypes.sgml
?????文件????????1043??2001-03-10?14:54??common-1.2.14\doc\tmpl\btree.sgml
?????文件?????????229??2001-03-10?14:54??common-1.2.14\doc\tmpl\cdecl_ext.sgml
............此處省略117個文件信息