diff --git a/trunk/research/librtmp/srs_ingest_rtmp.c b/trunk/research/librtmp/srs_ingest_rtmp.c
index adf47f9d1..ddf0b6856 100644
--- a/trunk/research/librtmp/srs_ingest_rtmp.c
+++ b/trunk/research/librtmp/srs_ingest_rtmp.c
@@ -30,20 +30,154 @@ gcc srs_ingest_rtmp.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_ingest
 
 #include "../../objs/include/srs_librtmp.h"
 
+#define trace(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
+#define verbose(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
+#if 1
+#undef verbose
+#define verbose(msg, ...) (void)0
+#endif
+
+int connect_ic(srs_rtmp_t irtmp);
+int connect_oc(srs_rtmp_t ortmp);
+int proxy(srs_rtmp_t irtmp, srs_rtmp_t ortmp);
+
 int main(int argc, char** argv)
 {
+    int ret = 0;
+    // user option parse index.
+    int opt = 0;
+    // user options.
+    char* in_rtmp_url; char* out_rtmp_url;
+    // rtmp handler
+    srs_rtmp_t irtmp, ortmp;
+    
     if (argc <= 2) {
         printf("ingest RTMP and publish to RTMP server\n"
-            "Usage: %s <in_rtmp_url> <out_rtmp_url>\n"
+            "Usage: %s <-i in_rtmp_url> <-y out_rtmp_url>\n"
             "   in_rtmp_url     input rtmp url, ingest from this url.\n"
-            "   out_rtmp_url    output rtmp url, publish to this url.\n",
+            "   out_rtmp_url    output rtmp url, publish to this url.\n"
+            "For example:\n"
+            "   %s -i rtmp://127.0.0.1/live/livestream -y rtmp://127.0.0.1/live/demo\n",
             argv[0]);
-        exit(1);
+        ret = 1;
+        exit(ret);
+        return ret;
     }
     
-    printf("ingest RTMP and publish to RTMP server like edge.\n");
-    printf("srs(simple-rtmp-server) client librtmp library.\n");
-    printf("version: %d.%d.%d\n", srs_version_major(), srs_version_minor(), srs_version_revision());
+    // parse options in FFMPEG format.
+    while ((opt = getopt(argc, argv, "i:y:")) != -1) {
+        switch (opt) {
+            case 'i':
+                in_rtmp_url = optarg;
+                break;
+            case 'y':
+                out_rtmp_url = optarg;
+                break;
+            default:
+                break;
+        }
+    }
     
-    return 0;
+    trace("ingest RTMP and publish to RTMP server like edge.");
+    trace("srs(simple-rtmp-server) client librtmp library.");
+    trace("version: %d.%d.%d", srs_version_major(), srs_version_minor(), srs_version_revision());
+    trace("input:  %s", in_rtmp_url);
+    trace("output: %s", out_rtmp_url);
+    
+    irtmp = srs_rtmp_create(in_rtmp_url);
+    ortmp = srs_rtmp_create(out_rtmp_url);
+
+    ret = proxy(irtmp, ortmp);
+    trace("proxy completed");
+    
+    srs_rtmp_destroy(irtmp);
+    srs_rtmp_destroy(ortmp);
+    
+    return ret;
+}
+
+int proxy(srs_rtmp_t irtmp, srs_rtmp_t ortmp)
+{
+    int ret = 0;
+    
+    // packet data
+    int type, size;
+    u_int32_t timestamp = 0;
+    char* data = NULL;
+
+    if ((ret = connect_ic(irtmp)) != 0) {
+        return ret;
+    }
+    if ((ret = connect_oc(ortmp)) != 0) {
+        return ret;
+    }
+    
+    trace("start proxy RTMP stream");
+    for (;;) {
+        if ((ret = srs_read_packet(irtmp, &type, &timestamp, &data, &size)) != 0) {
+            trace("irtmp get packet failed. ret=%d", ret);
+            return ret;
+        }
+        verbose("irtmp got packet: type=%s, time=%d, size=%d", 
+            srs_type2string(type), timestamp, size);
+        
+        if ((ret = srs_write_packet(ortmp, type, timestamp, data, size)) != 0) {
+            trace("irtmp get packet failed. ret=%d", ret);
+            return ret;
+        }
+        verbose("ortmp sent packet: type=%s, time=%d, size=%d", 
+            srs_type2string(type), timestamp, size);
+    }
+    
+    return ret;
+}
+
+int connect_ic(srs_rtmp_t irtmp)
+{
+    int ret = 0;
+    
+    if ((ret = srs_simple_handshake(irtmp)) != 0) {
+        trace("irtmp simple handshake failed. ret=%d", ret);
+        return ret;
+    }
+    trace("irtmp simple handshake success");
+    
+    if ((ret = srs_connect_app(irtmp)) != 0) {
+        trace("irtmp connect vhost/app failed. ret=%d", ret);
+        return ret;
+    }
+    trace("irtmp connect vhost/app success");
+    
+    if ((ret = srs_play_stream(irtmp)) != 0) {
+        trace("irtmp play stream failed. ret=%d", ret);
+        return ret;
+    }
+    trace("irtmp play stream success");
+    
+    return ret;
+}
+
+int connect_oc(srs_rtmp_t ortmp)
+{
+    int ret = 0;
+    
+    if ((ret = srs_simple_handshake(ortmp)) != 0) {
+        trace("ortmp simple handshake failed. ret=%d", ret);
+        return ret;
+    }
+    trace("ortmp simple handshake success");
+    
+    if ((ret = srs_connect_app(ortmp)) != 0) {
+        trace("ortmp connect vhost/app failed. ret=%d", ret);
+        return ret;
+    }
+    trace("ortmp connect vhost/app success");
+    
+    if ((ret = srs_publish_stream(ortmp)) != 0) {
+        trace("ortmp publish stream failed. ret=%d", ret);
+        return ret;
+    }
+    trace("ortmp publish stream success");
+    
+    return ret;
 }