initial import

git-svn-id: http://svn.pjsip.org/repos/pjproject/main@1 74dad513-b988-da41-8d7b-12977e46ad98

6 files changed, 791 insertions, 0 deletions

diff --git a/pjmedia/src/test/audio_tool.c b/pjmedia/src/test/audio_tool.c
new file mode 100644
index 00000000..31e1e9fc
--- /dev/null
+++ b/pjmedia/src/test/audio_tool.c
@@ -0,0 +1,392 @@
+/* $Header: /pjproject/pjmedia/src/test/audio_tool.c 11    6/24/05 11:17p Bennylp $ */

+#include <pjmedia.h>

+#include <pjlib.h>

+#include <stdio.h>

+

+#define THIS_FILE	"audio_tool.c"

+

+static pj_caching_pool caching_pool;

+static pj_pool_factory *pf;

+static FILE *fhnd;

+static pj_med_mgr_t *mm;

+static pj_codec *codec;

+static pj_codec_attr cattr;

+

+

+#define WRITE_ORIGINAL_PCM 0

+#if WRITE_ORIGINAL_PCM

+static FILE *fhnd_pcm;

+#endif

+

+static char talker_sdp[] = 

+    "v=0\r\n"

+    "o=- 0 0 IN IP4 127.0.0.1\r\n"

+    "s=-\r\n"

+    "c=IN IP4 127.0.0.1\r\n"

+    "t=0 0\r\n"

+    "m=audio 4002 RTP/AVP 0\r\n"

+    "a=rtpmap:0 PCMU/8000\r\n"

+    "a=sendonly\r\n";

+static char listener_sdp[] = 

+    "v=0\r\n"

+    "o=- 0 0 IN IP4 127.0.0.1\r\n"

+    "s=-\r\n"

+    "c=IN IP4 127.0.0.1\r\n"

+    "t=0 0\r\n"

+    "m=audio 4000 RTP/AVP 0\r\n"

+    "a=rtpmap:0 PCMU/8000\r\n"

+    "a=recvonly\r\n";

+

+static pj_status_t play_callback(/* in */   void *user_data,

+				 /* in */   pj_uint32_t timestamp,

+				 /* out */  void *frame,

+				 /* out */  unsigned size)

+{

+    char pkt[160];

+    struct pj_audio_frame in, out;

+    int frmsz = cattr.avg_bps / 8 * cattr.ptime / 1000;

+

+    if (fread(pkt, frmsz, 1, fhnd) != 1) {

+	puts("EOF");

+	return -1;

+    } else {

+	in.type = PJ_AUDIO_FRAME_AUDIO;

+	in.buf = pkt;

+	in.size = frmsz;

+	out.buf = frame;

+	if (codec->op->decode (codec, &in, size, &out) != 0)

+	    return -1;

+

+	size = out.size;

+	return 0;

+    }

+}

+

+static pj_status_t rec_callback( /* in */   void *user_data,

+			         /* in */   pj_uint32_t timestamp,

+			         /* in */   const void *frame,

+			         /* in*/    unsigned size)

+{

+    char pkt[160];

+    struct pj_audio_frame in, out;

+    //int frmsz = cattr.avg_bps / 8 * cattr.ptime / 1000;

+

+#if WRITE_ORIGINAL_PCM

+    fwrite(frame, size, 1, fhnd_pcm);

+#endif

+

+    in.type = PJ_AUDIO_FRAME_AUDIO;

+    in.buf = (void*)frame;

+    in.size = size;

+    out.buf = pkt;

+

+    if (codec->op->encode(codec, &in, sizeof(pkt), &out) != 0)

+	return -1;

+

+    if (fwrite(pkt, out.size, 1, fhnd) != 1)

+	return -1;

+    return 0;

+}

+

+static pj_status_t init()

+{

+    pj_codec_mgr *cm;

+    pj_codec_id id;

+    int i;

+

+    pj_caching_pool_init(&caching_pool, &pj_pool_factory_default_policy, 0);

+    pf = &caching_pool.factory;

+

+    if (pj_snd_init(&caching_pool.factory))

+	return -1;

+

+    PJ_LOG(3,(THIS_FILE, "Dumping audio devices:"));

+    for (i=0; i<pj_snd_get_dev_count(); ++i) {

+	const pj_snd_dev_info *info;

+	info = pj_snd_get_dev_info(i);

+	PJ_LOG(3,(THIS_FILE, "  %d: %s\t(%d in, %d out", 

+			     i, info->name, 

+			     info->input_count, info->output_count));

+    }

+

+    mm = pj_med_mgr_create (&caching_pool.factory);

+    cm = pj_med_mgr_get_codec_mgr (mm);

+

+    id.type = PJ_MEDIA_TYPE_AUDIO;

+    id.pt = 0;

+    id.encoding_name = pj_str("PCMU");

+    id.sample_rate = 8000;

+

+    codec = pj_codec_mgr_alloc_codec (cm, &id);

+    codec->op->default_attr(codec, &cattr);

+    codec->op->open(codec, &cattr);

+    return 0;

+}

+

+static pj_status_t deinit()

+{

+    pj_codec_mgr *cm;

+    cm = pj_med_mgr_get_codec_mgr (mm);

+    codec->op->close(codec);

+    pj_codec_mgr_dealloc_codec (cm, codec);

+    pj_med_mgr_destroy (mm);

+    pj_caching_pool_destroy(&caching_pool);

+    return 0;

+}

+

+static pj_status_t record_file (const char *filename)

+{

+    pj_snd_stream *stream;

+    pj_snd_stream_info info;

+    int status;

+    char s[10];

+

+    printf("Recording to file %s...\n", filename);

+

+    fhnd = fopen(filename, "wb");

+    if (!fhnd)

+	return -1;

+

+#if WRITE_ORIGINAL_PCM

+    fhnd_pcm = fopen("ORIGINAL.PCM", "wb");

+    if (!fhnd_pcm)

+	return -1;

+#endif

+

+    pj_memset(&info, 0, sizeof(info));

+    info.bits_per_sample = 16;

+    info.bytes_per_frame = 2;

+    info.frames_per_packet = 160;

+    info.samples_per_frame = 1;

+    info.samples_per_sec = 8000;

+

+    stream = pj_snd_open_recorder(-1, &info, &rec_callback, NULL);

+    if (!stream)

+	return -1;

+

+    status = pj_snd_stream_start(stream);

+    if (status != 0)

+	goto on_error;

+

+    puts("Press <ENTER> to exit recording");

+    fgets(s, sizeof(s), stdin);

+

+    pj_snd_stream_stop(stream);

+    pj_snd_stream_close(stream);

+

+#if WRITE_ORIGINAL_PCM

+    fclose(fhnd_pcm);

+#endif

+    fclose(fhnd);

+    return 0;

+

+on_error:

+    pj_snd_stream_stop(stream);

+    pj_snd_stream_close(stream);

+    return -1;

+}

+

+

+static pj_status_t play_file (const char *filename)

+{

+    pj_snd_stream *stream;

+    pj_snd_stream_info info;

+    int status;

+    char s[10];

+

+    printf("Playing file %s...\n", filename);

+

+    fhnd = fopen(filename, "rb");

+    if (!fhnd)

+	return -1;

+

+    pj_memset(&info, 0, sizeof(info));

+    info.bits_per_sample = 16;

+    info.bytes_per_frame = 2;

+    info.frames_per_packet = 160;

+    info.samples_per_frame = 1;

+    info.samples_per_sec = 8000;

+

+    stream = pj_snd_open_player(-1, &info, &play_callback, NULL);

+    if (!stream)

+	return -1;

+

+    status = pj_snd_stream_start(stream);

+    if (status != 0)

+	goto on_error;

+

+    puts("Press <ENTER> to exit playing");

+    fgets(s, sizeof(s), stdin);

+

+    pj_snd_stream_stop(stream);

+    pj_snd_stream_close(stream);

+

+    fclose(fhnd);

+    return 0;

+

+on_error:

+    pj_snd_stream_stop(stream);

+    pj_snd_stream_close(stream);

+    return -1;

+}

+

+static int create_ses_by_remote_sdp(int local_port, char *sdp)

+{

+    pj_media_session_t *ses = NULL;

+    pjsdp_session_desc *sdp_ses;

+    pj_media_sock_info skinfo;

+    pj_pool_t *pool;

+    char s[4];

+    const pj_media_stream_info *info[2];

+    int i, count;

+

+    pool = pj_pool_create(pf, "sdp", 1024, 0, NULL);

+    if (!pool) {

+	PJ_LOG(1,(THIS_FILE, "Unable to create pool"));

+	return -1;

+    }

+

+    pj_memset(&skinfo, 0, sizeof(skinfo));

+    skinfo.rtp_sock = skinfo.rtcp_sock = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, 0);

+    if (skinfo.rtp_sock == PJ_INVALID_SOCKET) {

+	PJ_LOG(1,(THIS_FILE, "Unable to create socket"));

+	goto on_error;

+    }

+

+    pj_sockaddr_init2(&skinfo.rtp_addr_name, "0.0.0.0", local_port);

+    if (pj_sock_bind(skinfo.rtp_sock, (struct pj_sockaddr*)&skinfo.rtp_addr_name, sizeof(pj_sockaddr_in)) != 0) {

+	PJ_LOG(1,(THIS_FILE, "Unable to bind socket"));

+	goto on_error;

+    }

+

+    sdp_ses = pjsdp_parse(sdp, strlen(sdp), pool);

+    if (!sdp_ses) {

+	PJ_LOG(1,(THIS_FILE, "Error parsing SDP"));

+	goto on_error;

+    }

+

+    ses = pj_media_session_create_from_sdp(mm, sdp_ses, &skinfo);

+    if (!ses) {

+	PJ_LOG(1,(THIS_FILE, "Unable to create session from SDP"));

+	goto on_error;

+    }

+

+    if (pj_media_session_activate(ses) != 0) {

+	PJ_LOG(1,(THIS_FILE, "Error activating session"));

+	goto on_error;

+    }

+

+    count = pj_media_session_enum_streams(ses, 2, info);

+    printf("\nDumping streams: \n");

+    for (i=0; i<count; ++i) {

+	const char *dir;

+	char *local_ip;

+

+	switch (info[i]->dir) {

+	case PJ_MEDIA_DIR_NONE:

+	    dir = "- NONE -"; break;

+	case PJ_MEDIA_DIR_ENCODING:

+	    dir = "SENDONLY"; break;

+	case PJ_MEDIA_DIR_DECODING:

+	    dir = "RECVONLY"; break;

+	case PJ_MEDIA_DIR_ENCODING_DECODING:

+	    dir = "SENDRECV"; break;

+	default:

+	    dir = "?UNKNOWN"; break;

+	}

+

+	local_ip = pj_sockaddr_get_str_addr(&info[i]->sock_info.rtp_addr_name);

+

+	printf("  Stream %d: %.*s %s local=%s:%d remote=%.*s:%d\n",

+	       i, info[i]->type.slen, info[i]->type.ptr,

+	       dir, 

+	       local_ip, pj_sockaddr_get_port(&info[i]->sock_info.rtp_addr_name),

+	       info[i]->rem_addr.slen, info[i]->rem_addr.ptr, info[i]->rem_port);

+    }

+

+    puts("Press <ENTER> to quit");

+    fgets(s, sizeof(s), stdin);

+

+    pj_media_session_destroy(ses);

+    pj_sock_close(skinfo.rtp_sock);

+    pj_pool_release(pool);

+

+    return 0;

+

+on_error:

+    if (ses)

+	pj_media_session_destroy(ses);

+    if (skinfo.rtp_sock != PJ_INVALID_SOCKET)

+	pj_sock_close(skinfo.rtp_sock);

+    if (pool)

+	pj_pool_release(pool);

+    return -1;

+}

+

+#if WRITE_ORIGINAL_PCM

+static pj_status_t convert(const char *src, const char *dst)

+{

+    char pcm[320];

+    char frame[160];

+    struct pj_audio_frame in, out;

+

+    fhnd_pcm = fopen(src, "rb");

+    if (!fhnd_pcm)

+	return -1;

+    fhnd = fopen(dst, "wb");

+    if (!fhnd)

+	return -1;

+

+    while (fread(pcm, 320, 1, fhnd_pcm) == 1) {

+

+	in.type = PJ_AUDIO_FRAME_AUDIO;

+	in.buf = pcm;

+	in.size = 320;

+	out.buf = frame;

+

+	if (codec->op->encode(codec, &in, 160, &out) != 0)

+	    break;

+

+	if (fwrite(frame, out.size, 1, fhnd) != 1)

+	    break;

+

+    }

+

+    fclose(fhnd);

+    fclose(fhnd_pcm);

+    return 0;

+}

+#endif

+

+static void usage(const char *exe)

+{

+    printf("Usage: %s <command> <file>\n", exe);

+    puts("where:");

+    puts("  <command>     play|record|send|recv");

+}

+

+int main(int argc, char *argv[])

+{

+    if (argc < 2) {

+	usage(argv[0]);

+	return 1;

+    }

+

+    pj_init();

+

+    init();

+

+    if (stricmp(argv[1], "record")==0) {

+	record_file("FILE.PCM");

+    } else if (stricmp(argv[1], "play")==0) {

+	play_file("FILE.PCM");

+    } else if (stricmp(argv[1], "send")==0) {

+	create_ses_by_remote_sdp(4002, listener_sdp);

+    } else if (stricmp(argv[1], "recv")==0) {

+	create_ses_by_remote_sdp(4000, talker_sdp);

+    } else {

+	usage(argv[0]);

+    }

+    deinit();

+    return 0;

+}

diff --git a/pjmedia/src/test/jbuf_test.c b/pjmedia/src/test/jbuf_test.c
new file mode 100644
index 00000000..74114001
--- /dev/null
+++ b/pjmedia/src/test/jbuf_test.c
@@ -0,0 +1,137 @@
+/* $Header: /pjproject/pjmedia/src/test/jbuf_test.c 9     6/24/05 11:18p Bennylp $ */

+#include <stdio.h>

+#include <ctype.h>

+#include <pjmedia/jbuf.h>

+#include <pj/pool.h>

+

+#define JB_MIN	    1

+#define JB_MAX	    8

+#define JB_BUF_SIZE 10

+

+#define REPORT

+//#define PRINT_COMMENT

+

+int jbuf_main(pj_pool_factory *pf)

+{

+    pj_jitter_buffer jb;

+    FILE *input = fopen("JBTEST.DAT", "rt");

+    unsigned lastseq;

+    void *data = "Hello world";

+    char line[1024], *p;

+    int lastget = 0, lastput = 0;

+    pj_pool_t *pool;

+

+    pj_init();

+    pool = pj_pool_create(pf, "JBPOOL", 256*16, 256*16, NULL);

+

+    pj_jb_init(&jb, pool, JB_MIN, JB_MAX, JB_BUF_SIZE);

+

+    lastseq = 1;

+

+    while ((p=fgets(line, sizeof(line), input)) != NULL) {

+

+	while (*p && isspace(*p))

+	    ++p;

+

+	if (!*p)

+	    continue;

+

+	if (*p == '#') {

+#ifdef PRINT_COMMENT

+	    printf("\n%s", p);

+#endif

+	    continue;

+	}

+

+	pj_jb_reset(&jb);

+#ifdef REPORT

+	printf( "Initial\t%c   size=%d  prefetch=%d level=%d\n", 

+	        ' ', jb.lst.count, jb.prefetch, jb.level);

+#endif

+

+	while (*p) {

+	    int c;

+	    unsigned seq = 0;

+	    void *thedata;

+	    int status = 1234;

+	    

+	    c = *p++;

+	    if (isspace(c))

+		continue;

+	    

+	    if (c == '/') {

+		char *end;

+

+		printf("/*");

+

+		do {

+		    putchar(*++p);

+		} while (*p != '/');

+

+		putchar('\n');

+

+		c = *++p;

+		end = p;

+

+	    }

+

+	    if (isspace(c))

+		continue;

+

+	    if (isdigit(c)) {

+		seq = c - '0';

+		while (*p) {

+		    c = *p++;

+		    

+		    if (isspace(c))

+			continue;

+		    

+		    if (!isdigit(c))

+			break;

+		    

+		    seq = seq * 10 + c - '0';

+		}

+	    }

+

+	    if (!*p)

+		break;

+

+	    switch (toupper(c)) {

+	    case 'G':

+		seq = -1;

+		status = pj_jb_get(&jb, &seq, &thedata);

+		lastget = seq;

+		break;

+	    case 'P':

+		if (seq == 0) 

+		    seq = lastseq++;

+		else

+		    lastseq = seq;

+		status = pj_jb_put(&jb, seq, data);

+		if (status == 0)

+		    lastput = seq;

+		break;

+	    default:

+		printf("Unknown character '%c'\n", c);

+		break;

+	    }

+

+#ifdef REPORT

+	    printf("seq=%d\t%c rc=%d\tsize=%d\tpfch=%d\tlvl=%d\tmxl=%d\tdelay=%d\n", 

+		    seq, toupper(c), status, jb.lst.count, jb.prefetch, jb.level, jb.max_level,

+		    (lastget>0 && lastput>0) ? lastput-lastget : -1);

+#endif

+	}

+    }

+

+#ifdef REPORT

+    printf("0\t%c   size=%d  prefetch=%d level=%d\n", 

+	    ' ', jb.lst.count, jb.prefetch, jb.level);

+#endif

+

+    if (input != stdin)

+	fclose(input);

+

+    pj_pool_release(pool);

+    return 0;

+}

diff --git a/pjmedia/src/test/main.c b/pjmedia/src/test/main.c
new file mode 100644
index 00000000..ad683ffe
--- /dev/null
+++ b/pjmedia/src/test/main.c
@@ -0,0 +1,25 @@
+/* $Header: /pjproject/pjmedia/src/test/main.c 9     6/24/05 11:18p Bennylp $ */

+#include <pj/os.h>

+#include <pj/pool.h>

+#include <pjmedia/sound.h>

+

+pj_status_t session_test (pj_pool_factory *pf);

+pj_status_t rtp_test (pj_pool_factory *pf);

+pj_status_t sdp_test(pj_pool_factory *pf);

+int jbuf_main(pj_pool_factory *pf);

+

+int main()

+{

+    pj_caching_pool caching_pool;

+

+    pj_init();

+    pj_caching_pool_init(&caching_pool, &pj_pool_factory_default_policy, 0);

+

+    sdp_test (&caching_pool.factory);

+    rtp_test(&caching_pool.factory);

+    session_test (&caching_pool.factory);

+    //jbuf_main(&caching_pool.factory);

+

+    pj_caching_pool_destroy(&caching_pool);

+    return 0;

+}

diff --git a/pjmedia/src/test/rtp_test.c b/pjmedia/src/test/rtp_test.c
new file mode 100644
index 00000000..9b70a894
--- /dev/null
+++ b/pjmedia/src/test/rtp_test.c
@@ -0,0 +1,20 @@
+/* $Header: /pjproject/pjmedia/src/test/rtp_test.c 4     3/12/05 4:21p Bennylp $ */

+#include <pjmedia/rtp.h>

+#include <stdio.h>

+

+int rtp_test()

+{

+    pj_rtp_session rtp;

+    FILE *fhnd = fopen("RTP.DAT", "wb");

+    const void *rtphdr;

+    int hdrlen;

+

+    if (!fhnd)

+	return -1;

+

+    pj_rtp_session_init (&rtp, 4, 0x12345678);

+    pj_rtp_encode_rtp (&rtp, 4, 0, 0, 160, &rtphdr, &hdrlen);

+    fwrite (rtphdr, hdrlen, 1, fhnd);

+    fclose(fhnd);

+    return 0;

+}

diff --git a/pjmedia/src/test/sdptest.c b/pjmedia/src/test/sdptest.c
new file mode 100644
index 00000000..45a79f67
--- /dev/null
+++ b/pjmedia/src/test/sdptest.c
@@ -0,0 +1,104 @@
+/* $Header: /pjproject/pjmedia/src/test/sdptest.c 8     6/12/05 11:36a Bennylp $ */

+#include <pjmedia/sdp.h>

+#include <pj/os.h>

+#include <pj/pool.h>

+#include <stdio.h>

+#include <string.h>

+

+static char *sdp[] = {

+    /*

+    "v=0\r\n"

+    "o=mhandley 2890844526 2890842807 IN IP4 126.16.64.4\r\n"

+    "s=SDP Seminar\r\n"

+    "i=A Seminar on the session description protocol\r\n"

+    "u=http://www.cs.ucl.ac.uk/staff/M.Handley/sdp.03.ps\r\n"

+    "e=mjh@isi.edu (Mark Handley)\r\n"

+    "c=IN IP4 224.2.17.12/127\r\n"

+    "t=2873397496 2873404696\r\n"

+    "a=recvonly\r\n"

+    "m=audio 49170 RTP/AVP 0\r\n"

+    "m=video 51372 RTP/AVP 31\r\n"

+    "m=application 32416 udp wb\r\n"

+    "a=orient:portrait\r\n"

+    "m=audio 49230 RTP/AVP 96 97 98\r\n"

+    "a=rtpmap:96 L8/8000\r\n"

+    "a=rtpmap:97 L16/8000\r\n"

+    "a=rtpmap:98 L16/11025/2\r\n",

+    */

+    "v=0\r\n"

+    "o=usera 2890844526 2890844527 IN IP4 alice.example.com\r\n"

+    "s=\r\n"

+    "c=IN IP4 alice.example.com\r\n"

+    "t=0 0\r\n"

+    "m=message 7394 msrp/tcp *\r\n"

+    "a=accept-types: message/cpim text/plain text/html\r\n"

+    "a=path:msrp://alice.example.com:7394/2s93i9;tcp\r\n"

+};

+

+static int sdp_perform_test(pj_pool_factory *pf)

+{

+    pj_pool_t *pool;

+    int inputlen, len;

+    pjsdp_session_desc *ses;

+    char buf[1500];

+    enum { LOOP=1000000 };

+    int i;

+    pj_time_val start, end;

+

+    printf("Parsing and printing %d SDP messages..\n", LOOP);

+

+    pool = pj_pool_create(pf, "", 4096, 0, NULL);

+    inputlen = strlen(sdp[0]);

+    pj_gettimeofday(&start);

+    for (i=0; i<LOOP; ++i) {

+	ses = pjsdp_parse(sdp[0], inputlen, pool);

+	len = pjsdp_print(ses, buf, sizeof(buf));

+	buf[len] = '\0';

+	pj_pool_reset(pool);

+    }

+    pj_gettimeofday(&end);

+

+    printf("Original:\n%s\n", sdp[0]);

+    printf("Parsed:\n%s\n", buf);

+

+    PJ_TIME_VAL_SUB(end, start);

+    printf("Time: %ld:%03lds\n", end.sec, end.msec);

+

+    if (end.msec==0 && end.sec==0) end.msec=1;

+    printf("Performance: %ld msg/sec\n", LOOP*1000/PJ_TIME_VAL_MSEC(end));

+    puts("");

+

+    pj_pool_release(pool);

+    return 0;

+}

+

+static int sdp_conform_test(pj_pool_factory *pf)

+{

+    pj_pool_t *pool;

+    pjsdp_session_desc *ses;

+    int i, len;

+    char buf[1500];

+

+    for (i=0; i<sizeof(sdp)/sizeof(sdp[0]); ++i) {

+	pool = pj_pool_create(pf, "sdp", 4096, 0, NULL);

+	ses = pjsdp_parse(sdp[i], strlen(sdp[i]), pool);

+	len = pjsdp_print(ses, buf, sizeof(buf)); 

+	buf[len] = '\0';

+	printf("%s\n", buf);

+	pj_pool_release(pool);

+    }

+

+    return 0;

+}

+

+pj_status_t sdp_test(pj_pool_factory *pf)

+{

+    if (sdp_conform_test(pf) != 0)

+	return -2;

+

+    if (sdp_perform_test(pf) != 0)

+	return -3;

+

+    return 0;

+}

+

diff --git a/pjmedia/src/test/session_test.c b/pjmedia/src/test/session_test.c
new file mode 100644
index 00000000..57455336
--- /dev/null
+++ b/pjmedia/src/test/session_test.c
@@ -0,0 +1,113 @@
+/* $Header: /pjproject/pjmedia/src/test/session_test.c 8     6/12/05 11:36a Bennylp $ */

+#include <pjmedia/mediamgr.h>

+#include <pjmedia/session.h>

+#include <pj/sock.h>

+#include <pj/pool.h>

+#include <stdio.h>

+#include <pj/string.h>

+

+pj_status_t session_test (pj_pool_factory *pf)

+{

+    pj_med_mgr_t *mm;

+    pj_media_session_t *s1, *s2;

+    pj_pool_t *pool;

+    pjsdp_session_desc *sdp;

+    pj_media_stream_info sd_info;

+    char buf[1024];

+    int len;

+    pj_media_stream_stat tx_stat, rx_stat;

+

+    pool = pj_pool_create(pf, "test", 4096, 1024, NULL);

+

+    // Init media manager.

+    mm = pj_med_mgr_create ( pf );

+

+    // Create caller session.

+    // THIS WILL DEFINITELY CRASH (NULL as argument)!

+    s1 = pj_media_session_create (mm, NULL);

+

+    // Set caller's media to send-only.

+    sd_info.dir = PJ_MEDIA_DIR_ENCODING;

+    pj_media_session_modify_stream (s1, 0, PJ_MEDIA_STREAM_MODIFY_DIR, &sd_info);

+

+    // Create caller SDP.

+    sdp = pj_media_session_create_sdp (s1, pool, 0);

+    len = pjsdp_print (sdp, buf, sizeof(buf));

+    buf[len] = '\0';

+    printf("Caller's initial SDP:\n<BEGIN>\n%s\n<END>\n", buf);

+

+    // Parse SDP from caller.

+    sdp = pjsdp_parse (buf, len, pool);

+

+    // Create callee session based on caller's SDP.

+    // THIS WILL DEFINITELY CRASH (NULL as argument)!

+    s2 = pj_media_session_create_from_sdp (mm, sdp, NULL);

+    

+    // Create callee SDP

+    sdp = pj_media_session_create_sdp (s2, pool, 0);

+    len = pjsdp_print (sdp, buf, sizeof(buf));

+    buf[len] = '\0';

+    printf("Callee's SDP:\n<BEGIN>\n%s\n<END>\n", buf);

+

+    // Parse SDP from callee.

+    sdp = pjsdp_parse (buf, len, pool);

+

+    // Update caller

+    pj_media_session_update (s1, sdp);

+    sdp = pj_media_session_create_sdp (s1, pool, 0);

+    pjsdp_print (sdp, buf, sizeof(buf));

+    printf("Caller's SDP after update:\n<BEGIN>\n%s\n<END>\n", buf);

+

+    // Now start media.

+    pj_media_session_activate (s2);

+    pj_media_session_activate (s1);

+

+    // Wait

+    for (;;) {

+	int has_stat;

+

+	printf("Enter q to exit, 1 or 2 to print statistics.\n");

+	fgets (buf, 10, stdin);

+	has_stat = 0;

+

+	switch (buf[0]) {

+	case 'q':

+	case 'Q':

+	    goto done;

+	    break;

+	case '1':

+	    pj_media_session_get_stat (s1, 0, &tx_stat, &rx_stat);

+	    has_stat = 1;

+	    break;

+	case '2':

+	    pj_media_session_get_stat (s2, 0, &tx_stat, &rx_stat);

+	    has_stat = 1;

+	    break;

+	}

+

+	if (has_stat) {

+	    pj_media_stream_stat *stat[2] = { &tx_stat, &rx_stat };

+	    const char *statname[2] = { "TX", "RX" };

+	    int i;

+

+	    for (i=0; i<2; ++i) {

+		printf("%s statistics:\n", statname[i]);

+		printf(" Pkt      TX=%d RX=%d\n", stat[i]->pkt_tx, stat[i]->pkt_rx);

+		printf(" Octets   TX=%d RX=%d\n", stat[i]->oct_tx, stat[i]->oct_rx);

+		printf(" Jitter   %d ms\n", stat[i]->jitter);

+		printf(" Pkt lost %d\n", stat[i]->pkt_lost);

+	    }

+	    printf("\n");

+	}

+    }

+

+done:

+

+    // Done.

+    pj_pool_release (pool);

+    pj_media_session_destroy (s2);

+    pj_media_session_destroy (s1);

+    pj_med_mgr_destroy (mm);

+

+    return 0;

+}