diff --git a/trunk/configure b/trunk/configure
index 6d3da2bff..c939a96c4 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -257,7 +257,7 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
             "srs_app_ingest" "srs_app_ffmpeg" "srs_app_utility" "srs_app_edge"
             "srs_app_heartbeat" "srs_app_empty" "srs_app_http_client" "srs_app_http_static"
             "srs_app_recv_thread" "srs_app_security" "srs_app_statistic" "srs_app_hds"
-            "srs_app_mpegts_udp" "srs_app_rtc_conn" "srs_app_dtls" "srs_app_rtsp" "srs_app_listener" "srs_app_async_call"
+            "srs_app_mpegts_udp" "srs_app_rtp" "srs_app_rtc_conn" "srs_app_dtls" "srs_app_rtsp" "srs_app_listener" "srs_app_async_call"
             "srs_app_caster_flv" "srs_app_process" "srs_app_ng_exec"
             "srs_app_hourglass" "srs_app_dash" "srs_app_fragment" "srs_app_dvr"
             "srs_app_coworkers" "srs_app_hybrid")
diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index bfc5c09f4..97f640f33 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -47,14 +47,14 @@ static bool is_stun(const char* data, const int size)
     return data != NULL && size > 0 && (data[0] == 0 || data[0] == 1); 
 }
 
-static bool is_rtp_or_rtcp(const char* data, const int size) 
+static bool is_dtls(const char* data, size_t len) 
 {
-    return data != NULL && size > 0 && (data[0] >= 128 && data[0] <= 191);
+  	return (len >= 13 && (data[0] > 19 && data[0] < 64));
 }
 
-static bool is_dtls(const char* data, const int size) 
+static bool is_rtp_or_rtcp(const char* data, size_t len) 
 {
-    return data != NULL && size > 0 && (data[0] >= 20 && data[0] <= 64);
+  	return (len >= 12 && (data[0] & 0xC0) == 0x80);
 }
 
 static string gen_random_str(int len)
diff --git a/trunk/src/app/srs_app_rtp.cpp b/trunk/src/app/srs_app_rtp.cpp
new file mode 100644
index 000000000..015141f84
--- /dev/null
+++ b/trunk/src/app/srs_app_rtp.cpp
@@ -0,0 +1,285 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2020 Winlin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <srs_app_rtp.hpp>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <unistd.h>
+#include <algorithm>
+#include <sstream>
+using namespace std;
+
+#include <srs_kernel_buffer.hpp>
+#include <srs_kernel_error.hpp>
+#include <srs_kernel_codec.hpp>
+#include <srs_kernel_flv.hpp>
+#include <srs_app_config.hpp>
+#include <srs_app_source.hpp>
+#include <srs_core_autofree.hpp>
+#include <srs_app_pithy_print.hpp>
+#include <srs_kernel_utility.hpp>
+#include <srs_kernel_codec.hpp>
+#include <srs_kernel_file.hpp>
+#include <srs_app_utility.hpp>
+#include <srs_app_http_hooks.hpp>
+#include <srs_protocol_format.hpp>
+#include <openssl/rand.h>
+
+static string dump_string_hex(const char* buf, const int nb_buf, const int& max_len);
+static string dump_string_hex(const std::string& str, const int& max_len = 128)
+{
+	return dump_string_hex(str.c_str(), str.size(), max_len);
+}
+
+static string dump_string_hex(const char* buf, const int nb_buf, const int& max_len = 128)
+{
+    char tmp_buf[1024*16];
+    int len = 0;
+    
+    for (int i = 0; i < nb_buf && i < max_len; ++i) {
+        int nb = snprintf(tmp_buf + len, sizeof(tmp_buf) - len - 1, "%02X ", (uint8_t)buf[i]);
+        if (nb <= 0)
+            break;
+
+        len += nb; 
+    }   
+    tmp_buf[len] = '\0';
+
+    return string(tmp_buf, len);
+}
+
+
+SrsRtpRawFrame::SrsRtpRawFrame(char* buf, int len)
+{
+    if (buf && len > 0) {
+        payload = new char[len];
+        size = len;
+        memcpy(payload, buf, len);
+    } else {
+        payload = NULL;
+        size = 0;
+    }
+}
+
+SrsRtpRawFrame::~SrsRtpRawFrame()
+{
+    if (payload) {
+        delete [] payload;
+        payload = NULL;
+        size = 0;
+    }
+}
+
+srs_error_t SrsRtpRawFrame::avcc_to_annexb()
+{
+    srs_error_t err = srs_success;
+
+    if (! (payload[0] == 0x00 && payload[1] == 0x00 && payload[2] == 0x00 && payload[3] == 0x01)) {
+    }
+
+    return err;
+}
+
+srs_error_t SrsRtpRawFrame::frame_to_packet()
+{
+    srs_error_t err = srs_success;
+    if (payload == NULL || size <= 4) {
+        return srs_error_wrap(err, "invalid rtp raw frame");
+    }
+
+    avcc_to_annexb();
+
+    char buf[1500] = {0};
+    SrsBuffer* stream = new SrsBuffer(buf, sizeof(buf));
+}
+
+SrsRtpMuxer::SrsRtpMuxer()
+{
+}
+
+SrsRtpMuxer::~SrsRtpMuxer()
+{
+}
+
+srs_error_t SrsRtpMuxer::video_frame_to_packet(SrsSharedPtrMessage* shared_video, SrsFormat* format)
+{
+    srs_error_t err = srs_success;
+
+    if (shared_video->size < 5) {
+        return srs_error_wrap(err, "invalid video size:%d", shared_video->size);
+    }
+
+    SrsRtpRawFrame* rtp_raw_frame = new SrsRtpRawFrame(shared_video->payload + 5, shared_video->size - 5);
+    SrsAutoFree(SrsRtpRawFrame, rtp_raw_frame);
+
+    rtp_raw_frame->frame_to_packet();
+
+    srs_trace("video dump=%s", dump_string_hex(shared_video->payload, shared_video->size).c_str());
+
+    //srs_avcc_to_annexb(raw, raw_len);
+
+    return err;
+}
+
+srs_error_t SrsRtpMuxer::audio_frame_to_packet(SrsSharedPtrMessage* shared_video, SrsFormat* format)
+{
+    srs_error_t err = srs_success;
+
+    return err;
+}
+
+SrsRtp::SrsRtp()
+{
+    req = NULL;
+    hub = NULL;
+    
+    enabled = false;
+    disposable = false;
+    last_update_time = 0;
+}
+
+SrsRtp::~SrsRtp()
+{
+}
+
+void SrsRtp::dispose()
+{
+    if (enabled) {
+        on_unpublish();
+    }
+}
+
+srs_error_t SrsRtp::cycle()
+{
+    srs_error_t err = srs_success;
+    
+    return err;
+}
+
+srs_error_t SrsRtp::initialize(SrsOriginHub* h, SrsRequest* r)
+{
+    srs_error_t err = srs_success;
+    
+    hub = h;
+    req = r;
+
+    rtp_muxer = new SrsRtpMuxer();
+    
+    return err;
+}
+
+srs_error_t SrsRtp::on_publish()
+{
+    srs_error_t err = srs_success;
+
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time();
+    
+    // support multiple publish.
+    if (enabled) {
+        return err;
+    }
+    
+    // if enabled, open the muxer.
+    enabled = true;
+    
+    // ok, the hls can be dispose, or need to be dispose.
+    disposable = true;
+    
+    return err;
+}
+
+void SrsRtp::on_unpublish()
+{
+    srs_error_t err = srs_success;
+    
+    // support multiple unpublish.
+    if (!enabled) {
+        return;
+    }
+    
+    enabled = false;
+}
+
+srs_error_t SrsRtp::on_audio(SrsSharedPtrMessage* shared_audio, SrsFormat* format)
+{
+    srs_error_t err = srs_success;
+    
+    if (!enabled) {
+        return err;
+    }
+
+    // Ignore if no format->acodec, it means the codec is not parsed, or unknown codec.
+    // @issue https://github.com/ossrs/srs/issues/1506#issuecomment-562079474
+    if (!format->acodec) {
+        return err;
+    }
+    
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time();
+    
+    SrsSharedPtrMessage* audio = shared_audio->copy();
+    SrsAutoFree(SrsSharedPtrMessage, audio);
+    
+    // ts support audio codec: aac/mp3
+    SrsAudioCodecId acodec = format->acodec->id;
+    if (acodec != SrsAudioCodecIdAAC && acodec != SrsAudioCodecIdMP3) {
+        return err;
+    }
+    
+    // ignore sequence header
+    srs_assert(format->audio);
+
+    return rtp_muxer->audio_frame_to_packet(audio, format);
+}
+
+srs_error_t SrsRtp::on_video(SrsSharedPtrMessage* shared_video, SrsFormat* format)
+{
+    srs_error_t err = srs_success;
+    
+    if (!enabled) {
+        return err;
+    }
+
+    // Ignore if no format->vcodec, it means the codec is not parsed, or unknown codec.
+    // @issue https://github.com/ossrs/srs/issues/1506#issuecomment-562079474
+    if (!format->vcodec) {
+        return err;
+    }
+
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time();
+    
+    SrsSharedPtrMessage* video = shared_video->copy();
+    SrsAutoFree(SrsSharedPtrMessage, video);
+    
+    // ignore info frame,
+    // @see https://github.com/ossrs/srs/issues/288#issuecomment-69863909
+    srs_assert(format->video);
+    return rtp_muxer->video_frame_to_packet(video, format);
+}
diff --git a/trunk/src/app/srs_app_rtp.hpp b/trunk/src/app/srs_app_rtp.hpp
new file mode 100644
index 000000000..097d2a8a6
--- /dev/null
+++ b/trunk/src/app/srs_app_rtp.hpp
@@ -0,0 +1,87 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2020 Winlin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SRS_APP_RTP_HPP
+#define SRS_APP_RTP_HPP
+
+#include <srs_core.hpp>
+
+#include <string>
+#include <vector>
+#include <map>
+
+class SrsFormat;
+class SrsSharedPtrMessage;
+class SrsRequest;
+class SrsOriginHub;
+
+class SrsRtpRawFrame
+{
+public:
+    int64_t timestamp;
+    char* payload;
+    int size;
+public:
+    SrsRtpRawFrame(char* buf, int len);
+    virtual ~SrsRtpRawFrame();
+public:
+    srs_error_t avcc_to_annexb();
+    srs_error_t frame_to_packet();
+};
+
+class SrsRtpMuxer
+{
+private:
+    std::map<uint32_t, std::string> packet_queue;
+public:
+    SrsRtpMuxer();
+    virtual ~SrsRtpMuxer();
+public:
+    srs_error_t video_frame_to_packet(SrsSharedPtrMessage* shared_video, SrsFormat* format);
+    srs_error_t audio_frame_to_packet(SrsSharedPtrMessage* shared_video, SrsFormat* format);
+};
+
+class SrsRtp
+{
+private:
+    SrsRequest* req;
+    bool enabled;
+    bool disposable;
+    srs_utime_t last_update_time;
+    SrsRtpMuxer* rtp_muxer;
+    SrsOriginHub* hub;
+public:
+    SrsRtp();
+    virtual ~SrsRtp();
+public:
+    virtual void dispose();
+    virtual srs_error_t cycle();
+public:
+    virtual srs_error_t initialize(SrsOriginHub* h, SrsRequest* r);
+    virtual srs_error_t on_publish();
+    virtual void on_unpublish();
+    virtual srs_error_t on_audio(SrsSharedPtrMessage* shared_audio, SrsFormat* format);
+    virtual srs_error_t on_video(SrsSharedPtrMessage* shared_video, SrsFormat* format);
+};
+
+#endif
diff --git a/trunk/src/app/srs_app_source.cpp b/trunk/src/app/srs_app_source.cpp
index f5acb05da..f30eb0163 100755
--- a/trunk/src/app/srs_app_source.cpp
+++ b/trunk/src/app/srs_app_source.cpp
@@ -32,6 +32,7 @@ using namespace std;
 #include <srs_protocol_amf0.hpp>
 #include <srs_kernel_codec.hpp>
 #include <srs_app_hls.hpp>
+#include <srs_app_rtp.hpp>
 #include <srs_app_forward.hpp>
 #include <srs_app_config.hpp>
 #include <srs_app_encoder.hpp>
@@ -824,6 +825,7 @@ SrsOriginHub::SrsOriginHub()
     dash = new SrsDash();
     dvr = new SrsDvr();
     encoder = new SrsEncoder();
+    rtp = new SrsRtp();
 #ifdef SRS_AUTO_HDS
     hds = new SrsHds();
 #endif
@@ -868,6 +870,10 @@ srs_error_t SrsOriginHub::initialize(SrsSource* s, SrsRequest* r)
         return srs_error_wrap(err, "format initialize");
     }
     
+    if ((err = rtp->initialize(this, req)) != srs_success) {
+        return srs_error_wrap(err, "rtp initialize");
+    }
+    
     if ((err = hls->initialize(this, req)) != srs_success) {
         return srs_error_wrap(err, "hls initialize");
     }
@@ -965,6 +971,12 @@ srs_error_t SrsOriginHub::on_audio(SrsSharedPtrMessage* shared_audio)
                   flv_sample_sizes[c->sound_size], flv_sound_types[c->sound_type],
                   srs_flv_srates[c->sound_rate]);
     }
+
+    if ((err = rtp->on_audio(msg, format)) != srs_success) {
+        srs_warn("rtp: ignore audio error %s", srs_error_desc(err).c_str());
+        srs_error_reset(err);
+        rtp->on_unpublish();
+    }
     
     if ((err = hls->on_audio(msg, format)) != srs_success) {
         // apply the error strategy for hls.
@@ -1058,6 +1070,12 @@ srs_error_t SrsOriginHub::on_video(SrsSharedPtrMessage* shared_video, bool is_se
     if (format->vcodec && !format->vcodec->is_avc_codec_ok()) {
         return err;
     }
+
+    if ((err = rtp->on_video(msg, format)) != srs_success) {
+        srs_warn("rtp: ignore video error %s", srs_error_desc(err).c_str());
+        srs_error_reset(err);
+        rtp->on_unpublish();
+    }
     
     if ((err = hls->on_video(msg, format)) != srs_success) {
         // apply the error strategy for hls.
@@ -1126,6 +1144,10 @@ srs_error_t SrsOriginHub::on_publish()
         return srs_error_wrap(err, "encoder publish");
     }
     
+    if ((err = rtp->on_publish()) != srs_success) {
+        return srs_error_wrap(err, "rtp publish");
+    }
+
     if ((err = hls->on_publish()) != srs_success) {
         return srs_error_wrap(err, "hls publish");
     }
@@ -1163,6 +1185,7 @@ void SrsOriginHub::on_unpublish()
     destroy_forwarders();
     
     encoder->on_unpublish();
+    rtp->on_unpublish();
     hls->on_unpublish();
     dash->on_unpublish();
     dvr->on_unpublish();
@@ -2224,7 +2247,7 @@ srs_error_t SrsSource::on_video(SrsCommonMessage* shared_video)
         return srs_error_wrap(err, "create message");
     }
     
-    // directly process the audio message.
+    // directly process the video message.
     if (!mix_correct) {
         return on_video_imp(&msg);
     }
diff --git a/trunk/src/app/srs_app_source.hpp b/trunk/src/app/srs_app_source.hpp
index 8cb79f478..674ffc99e 100644
--- a/trunk/src/app/srs_app_source.hpp
+++ b/trunk/src/app/srs_app_source.hpp
@@ -54,6 +54,7 @@ class SrsNgExec;
 class SrsConnection;
 class SrsMessageHeader;
 class SrsHls;
+class SrsRtp;
 class SrsDvr;
 class SrsDash;
 class SrsEncoder;
@@ -335,6 +336,8 @@ private:
 private:
     // The format, codec information.
     SrsRtmpFormat* format;
+    // rtp handler
+    SrsRtp* rtp;
     // hls handler.
     SrsHls* hls;
     // The DASH encoder.