add forward framework

@@ -108,7 +108,7 @@ void SrsForwarder::on_unpublish()
 	srs_freep(client);
 	srs_freep(client);
 }
 }
 
 
-int SrsForwarder::on_meta_data(SrsOnMetaDataPacket* metadata)
+int SrsForwarder::on_meta_data(SrsSharedPtrMessage* metadata)
 {
 {
 	int ret = ERROR_SUCCESS;
 	int ret = ERROR_SUCCESS;
 	return ret;
 	return ret;
@@ -222,8 +222,13 @@ int SrsForwarder::forward_cycle_imp()
 		srs_error("connect with server failed, tcUrl=%s. ret=%d", tc_url.c_str(), ret);
 		srs_error("connect with server failed, tcUrl=%s. ret=%d", tc_url.c_str(), ret);
 		return ret;
 		return ret;
 	}
 	}
-	if ((ret = client->play_stream(stream_name, stream_id)) != ERROR_SUCCESS) {
-		srs_error("connect with server failed, stream_name=%s. ret=%d", stream_name.c_str(), ret);
+	if ((ret = client->create_stream(stream_id)) != ERROR_SUCCESS) {
+		srs_error("connect with server failed, stream_id=%d. ret=%d", stream_id, ret);
+		return ret;
+	}
+	if ((ret = client->publish(stream_name, stream_id)) != ERROR_SUCCESS) {
+		srs_error("connect with server failed, stream_name=%s, stream_id=%d. ret=%d", 
+			stream_name.c_str(), stream_id, ret);
 		return ret;
 		return ret;
 	}
 	}
 	
 	

@@ -61,7 +61,7 @@ public:
 public:
 public:
 	virtual int on_publish(std::string vhost, std::string app, std::string stream, std::string forward_server);
 	virtual int on_publish(std::string vhost, std::string app, std::string stream, std::string forward_server);
 	virtual void on_unpublish();
 	virtual void on_unpublish();
-	virtual int on_meta_data(SrsOnMetaDataPacket* metadata);
+	virtual int on_meta_data(SrsSharedPtrMessage* metadata);
 	virtual int on_audio(SrsSharedPtrMessage* msg);
 	virtual int on_audio(SrsSharedPtrMessage* msg);
 	virtual int on_video(SrsSharedPtrMessage* msg);
 	virtual int on_video(SrsSharedPtrMessage* msg);
 private:
 private:

@@ -641,6 +641,15 @@ int SrsProtocol::on_send_message(ISrsMessage* msg)
 				pkt = dynamic_cast<SrsConnectAppPacket*>(common_msg->get_packet());
 				pkt = dynamic_cast<SrsConnectAppPacket*>(common_msg->get_packet());
 				if (pkt) {
 				if (pkt) {
 					requests[pkt->transaction_id] = RTMP_AMF0_COMMAND_CONNECT;
 					requests[pkt->transaction_id] = RTMP_AMF0_COMMAND_CONNECT;
+					break;
+				}
+			}
+			if (true) {
+				SrsCreateStreamPacket* pkt = NULL;
+				pkt = dynamic_cast<SrsCreateStreamPacket*>(common_msg->get_packet());
+				if (pkt) {
+					requests[pkt->transaction_id] = RTMP_AMF0_COMMAND_CREATE_STREAM;
+					break;
 				}
 				}
 			}
 			}
 			break;
 			break;
@@ -1246,6 +1255,10 @@ int SrsCommonMessage::decode_packet(SrsProtocol* protocol)
 				srs_info("decode the AMF0/AMF3 response command(connect vhost/app message).");
 				srs_info("decode the AMF0/AMF3 response command(connect vhost/app message).");
 				packet = new SrsConnectAppResPacket();
 				packet = new SrsConnectAppResPacket();
 				return packet->decode(stream);
 				return packet->decode(stream);
+			} else if (request_name == RTMP_AMF0_COMMAND_CREATE_STREAM) {
+				srs_info("decode the AMF0/AMF3 response command(createStream message).");
+				packet = new SrsCreateStreamResPacket(0, 0);
+				return packet->decode(stream);
 			} else {
 			} else {
 				ret = ERROR_RTMP_NO_REQUEST;
 				ret = ERROR_RTMP_NO_REQUEST;
 				srs_error("decode AMF0/AMF3 request failed. "
 				srs_error("decode AMF0/AMF3 request failed. "
@@ -1841,6 +1854,49 @@ int SrsCreateStreamPacket::decode(SrsStream* stream)
 	return ret;
 	return ret;
 }
 }
 
 
+int SrsCreateStreamPacket::get_perfer_cid()
+{
+	return RTMP_CID_OverConnection;
+}
+
+int SrsCreateStreamPacket::get_message_type()
+{
+	return RTMP_MSG_AMF0CommandMessage;
+}
+
+int SrsCreateStreamPacket::get_size()
+{
+	return srs_amf0_get_string_size(command_name) + srs_amf0_get_number_size()
+		+ srs_amf0_get_null_size();
+}
+
+int SrsCreateStreamPacket::encode_packet(SrsStream* stream)
+{
+	int ret = ERROR_SUCCESS;
+	
+	if ((ret = srs_amf0_write_string(stream, command_name)) != ERROR_SUCCESS) {
+		srs_error("encode command_name failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_name success.");
+	
+	if ((ret = srs_amf0_write_number(stream, transaction_id)) != ERROR_SUCCESS) {
+		srs_error("encode transaction_id failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode transaction_id success.");
+	
+	if ((ret = srs_amf0_write_null(stream)) != ERROR_SUCCESS) {
+		srs_error("encode command_object failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_object success.");
+	
+	srs_info("encode create stream request packet success.");
+	
+	return ret;
+}
+
 SrsCreateStreamResPacket::SrsCreateStreamResPacket(double _transaction_id, double _stream_id)
 SrsCreateStreamResPacket::SrsCreateStreamResPacket(double _transaction_id, double _stream_id)
 {
 {
 	command_name = RTMP_AMF0_COMMAND_RESULT;
 	command_name = RTMP_AMF0_COMMAND_RESULT;
@@ -1854,6 +1910,41 @@ SrsCreateStreamResPacket::~SrsCreateStreamResPacket()
 	srs_freep(command_object);
 	srs_freep(command_object);
 }
 }
 
 
+int SrsCreateStreamResPacket::decode(SrsStream* stream)
+{
+	int ret = ERROR_SUCCESS;
+
+	if ((ret = srs_amf0_read_string(stream, command_name)) != ERROR_SUCCESS) {
+		srs_error("amf0 decode createStream command_name failed. ret=%d", ret);
+		return ret;
+	}
+	if (command_name.empty() || command_name != RTMP_AMF0_COMMAND_RESULT) {
+		ret = ERROR_RTMP_AMF0_DECODE;
+		srs_error("amf0 decode createStream command_name failed. "
+			"command_name=%s, ret=%d", command_name.c_str(), ret);
+		return ret;
+	}
+	
+	if ((ret = srs_amf0_read_number(stream, transaction_id)) != ERROR_SUCCESS) {
+		srs_error("amf0 decode createStream transaction_id failed. ret=%d", ret);
+		return ret;
+	}
+	
+	if ((ret = srs_amf0_read_null(stream)) != ERROR_SUCCESS) {
+		srs_error("amf0 decode createStream command_object failed. ret=%d", ret);
+		return ret;
+	}
+	
+	if ((ret = srs_amf0_read_number(stream, stream_id)) != ERROR_SUCCESS) {
+		srs_error("amf0 decode createStream stream_id failed. ret=%d", ret);
+		return ret;
+	}
+	
+	srs_info("amf0 decode createStream response packet success");
+	
+	return ret;
+}
+
 int SrsCreateStreamResPacket::get_perfer_cid()
 int SrsCreateStreamResPacket::get_perfer_cid()
 {
 {
 	return RTMP_CID_OverConnection;
 	return RTMP_CID_OverConnection;
@@ -2072,6 +2163,62 @@ int SrsPublishPacket::decode(SrsStream* stream)
 	return ret;
 	return ret;
 }
 }
 
 
+int SrsPublishPacket::get_perfer_cid()
+{
+	return RTMP_CID_OverStream;
+}
+
+int SrsPublishPacket::get_message_type()
+{
+	return RTMP_MSG_AMF0CommandMessage;
+}
+
+int SrsPublishPacket::get_size()
+{
+	return srs_amf0_get_string_size(command_name) + srs_amf0_get_number_size()
+		+ srs_amf0_get_null_size() + srs_amf0_get_string_size(stream_name)
+		+ srs_amf0_get_string_size(type);
+}
+
+int SrsPublishPacket::encode_packet(SrsStream* stream)
+{
+	int ret = ERROR_SUCCESS;
+	
+	if ((ret = srs_amf0_write_string(stream, command_name)) != ERROR_SUCCESS) {
+		srs_error("encode command_name failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_name success.");
+	
+	if ((ret = srs_amf0_write_number(stream, transaction_id)) != ERROR_SUCCESS) {
+		srs_error("encode transaction_id failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode transaction_id success.");
+	
+	if ((ret = srs_amf0_write_null(stream)) != ERROR_SUCCESS) {
+		srs_error("encode command_object failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_object success.");
+	
+	if ((ret = srs_amf0_write_string(stream, stream_name)) != ERROR_SUCCESS) {
+		srs_error("encode stream_name failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode stream_name success.");
+	
+	if ((ret = srs_amf0_write_string(stream, type)) != ERROR_SUCCESS) {
+		srs_error("encode type failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode type success.");
+	
+	srs_info("encode play request packet success.");
+	
+	return ret;
+}
+
 SrsPausePacket::SrsPausePacket()
 SrsPausePacket::SrsPausePacket()
 {
 {
 	command_name = RTMP_AMF0_COMMAND_PAUSE;
 	command_name = RTMP_AMF0_COMMAND_PAUSE;
@@ -2191,6 +2338,75 @@ int SrsPlayPacket::decode(SrsStream* stream)
 	return ret;
 	return ret;
 }
 }
 
 
+int SrsPlayPacket::get_perfer_cid()
+{
+	return RTMP_CID_OverStream;
+}
+
+int SrsPlayPacket::get_message_type()
+{
+	return RTMP_MSG_AMF0CommandMessage;
+}
+
+int SrsPlayPacket::get_size()
+{
+	return srs_amf0_get_string_size(command_name) + srs_amf0_get_number_size()
+		+ srs_amf0_get_null_size() + srs_amf0_get_string_size(stream_name)
+		+ srs_amf0_get_number_size() + srs_amf0_get_number_size()
+		+ srs_amf0_get_boolean_size();
+}
+
+int SrsPlayPacket::encode_packet(SrsStream* stream)
+{
+	int ret = ERROR_SUCCESS;
+	
+	if ((ret = srs_amf0_write_string(stream, command_name)) != ERROR_SUCCESS) {
+		srs_error("encode command_name failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_name success.");
+	
+	if ((ret = srs_amf0_write_number(stream, transaction_id)) != ERROR_SUCCESS) {
+		srs_error("encode transaction_id failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode transaction_id success.");
+	
+	if ((ret = srs_amf0_write_null(stream)) != ERROR_SUCCESS) {
+		srs_error("encode command_object failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode command_object success.");
+	
+	if ((ret = srs_amf0_write_string(stream, stream_name)) != ERROR_SUCCESS) {
+		srs_error("encode stream_name failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode stream_name success.");
+	
+	if ((ret = srs_amf0_write_number(stream, start)) != ERROR_SUCCESS) {
+		srs_error("encode start failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode start success.");
+	
+	if ((ret = srs_amf0_write_number(stream, duration)) != ERROR_SUCCESS) {
+		srs_error("encode duration failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode duration success.");
+	
+	if ((ret = srs_amf0_write_boolean(stream, reset)) != ERROR_SUCCESS) {
+		srs_error("encode reset failed. ret=%d", ret);
+		return ret;
+	}
+	srs_verbose("encode reset success.");
+	
+	srs_info("encode play request packet success.");
+	
+	return ret;
+}
+
 SrsPlayResPacket::SrsPlayResPacket()
 SrsPlayResPacket::SrsPlayResPacket()
 {
 {
 	command_name = RTMP_AMF0_COMMAND_RESULT;
 	command_name = RTMP_AMF0_COMMAND_RESULT;

@@ -552,6 +552,13 @@ public:
 	virtual ~SrsCreateStreamPacket();
 	virtual ~SrsCreateStreamPacket();
 public:
 public:
 	virtual int decode(SrsStream* stream);
 	virtual int decode(SrsStream* stream);
+public:
+	virtual int get_perfer_cid();
+public:
+	virtual int get_message_type();
+protected:
+	virtual int get_size();
+	virtual int encode_packet(SrsStream* stream);
 };
 };
 /**
 /**
 * response for SrsCreateStreamPacket.
 * response for SrsCreateStreamPacket.
@@ -574,6 +581,8 @@ public:
 	SrsCreateStreamResPacket(double _transaction_id, double _stream_id);
 	SrsCreateStreamResPacket(double _transaction_id, double _stream_id);
 	virtual ~SrsCreateStreamResPacket();
 	virtual ~SrsCreateStreamResPacket();
 public:
 public:
+	virtual int decode(SrsStream* stream);
+public:
 	virtual int get_perfer_cid();
 	virtual int get_perfer_cid();
 public:
 public:
 	virtual int get_message_type();
 	virtual int get_message_type();
@@ -662,6 +671,13 @@ public:
 	virtual ~SrsPublishPacket();
 	virtual ~SrsPublishPacket();
 public:
 public:
 	virtual int decode(SrsStream* stream);
 	virtual int decode(SrsStream* stream);
+public:
+	virtual int get_perfer_cid();
+public:
+	virtual int get_message_type();
+protected:
+	virtual int get_size();
+	virtual int encode_packet(SrsStream* stream);
 };
 };
 
 
 /**
 /**
@@ -717,6 +733,13 @@ public:
 	virtual ~SrsPlayPacket();
 	virtual ~SrsPlayPacket();
 public:
 public:
 	virtual int decode(SrsStream* stream);
 	virtual int decode(SrsStream* stream);
+public:
+	virtual int get_perfer_cid();
+public:
+	virtual int get_message_type();
+protected:
+	virtual int get_size();
+	virtual int encode_packet(SrsStream* stream);
 };
 };
 /**
 /**
 * response for SrsPlayPacket.
 * response for SrsPlayPacket.
@@ -1050,6 +1073,7 @@ protected:
 		return CLASS_NAME_STRING(SrsUserControlPacket);
 		return CLASS_NAME_STRING(SrsUserControlPacket);
 	}
 	}
 public:
 public:
+	// @see: SrcPCUCEventType
 	int16_t event_type;
 	int16_t event_type;
 	int32_t event_data;
 	int32_t event_data;
 	/**
 	/**

@@ -252,12 +252,99 @@ int SrsRtmpClient::connect_app(std::string app, std::string tc_url)
     return ret;
     return ret;
 }
 }
 
 
-int SrsRtmpClient::play_stream(std::string stream, int& stream_id)
+int SrsRtmpClient::create_stream(int& stream_id)
 {
 {
 	int ret = ERROR_SUCCESS;
 	int ret = ERROR_SUCCESS;
 	
 	
 	// CreateStream
 	// CreateStream
 	if (true) {
 	if (true) {
+		SrsCommonMessage* msg = new SrsCommonMessage();
+		SrsCreateStreamPacket* pkt = new SrsCreateStreamPacket();
+	
+		msg->set_packet(pkt, 0);
+		
+		if ((ret = protocol->send_message(msg)) != ERROR_SUCCESS) {
+			return ret;
+		}
+	}
+
+	// CreateStream _result.
+	if (true) {
+		SrsCommonMessage* msg = NULL;
+		SrsCreateStreamResPacket* pkt = NULL;
+		if ((ret = srs_rtmp_expect_message<SrsCreateStreamResPacket>(protocol, &msg, &pkt)) != ERROR_SUCCESS) {
+			srs_error("expect create stream response message failed. ret=%d", ret);
+			return ret;
+		}
+		SrsAutoFree(SrsCommonMessage, msg, false);
+		srs_info("get create stream response message");
+
+		stream_id = (int)pkt->stream_id;
+	}
+	
+	return ret;
+}
+
+int SrsRtmpClient::play(std::string stream, int stream_id)
+{
+	int ret = ERROR_SUCCESS;
+
+	// Play(stream)
+	if (true) {
+		SrsCommonMessage* msg = new SrsCommonMessage();
+		SrsPlayPacket* pkt = new SrsPlayPacket();
+	
+		pkt->stream_name = stream;
+		msg->set_packet(pkt, stream_id);
+		
+		if ((ret = protocol->send_message(msg)) != ERROR_SUCCESS) {
+			srs_error("send play stream failed. "
+				"stream=%s, stream_id=%d, ret=%d", 
+				stream.c_str(), stream_id, ret);
+			return ret;
+		}
+	}
+	
+	// SetBufferLength(1000ms)
+	int buffer_length_ms = 1000;
+	if (true) {
+		SrsCommonMessage* msg = new SrsCommonMessage();
+		SrsUserControlPacket* pkt = new SrsUserControlPacket();
+	
+		pkt->event_type = SrcPCUCSetBufferLength;
+		pkt->event_data = stream_id;
+		pkt->extra_data = buffer_length_ms;
+		msg->set_packet(pkt, 0);
+		
+		if ((ret = protocol->send_message(msg)) != ERROR_SUCCESS) {
+			srs_error("send set buffer length failed. "
+				"stream=%s, stream_id=%d, bufferLength=%d, ret=%d", 
+				stream.c_str(), stream_id, buffer_length_ms, ret);
+			return ret;
+		}
+	}
+	
+	return ret;
+}
+
+int SrsRtmpClient::publish(std::string stream, int stream_id)
+{
+	int ret = ERROR_SUCCESS;
+
+	// publish(stream)
+	if (true) {
+		SrsCommonMessage* msg = new SrsCommonMessage();
+		SrsPublishPacket* pkt = new SrsPublishPacket();
+	
+		pkt->stream_name = stream;
+		msg->set_packet(pkt, stream_id);
+		
+		if ((ret = protocol->send_message(msg)) != ERROR_SUCCESS) {
+			srs_error("send publish message failed. "
+				"stream=%s, stream_id=%d, ret=%d", 
+				stream.c_str(), stream_id, ret);
+			return ret;
+		}
 	}
 	}
 	
 	
 	return ret;
 	return ret;

@@ -111,7 +111,9 @@ public:
 public:
 public:
 	virtual int handshake();
 	virtual int handshake();
 	virtual int connect_app(std::string app, std::string tc_url);
 	virtual int connect_app(std::string app, std::string tc_url);
-	virtual int play_stream(std::string stream, int& stream_id);
+	virtual int create_stream(int& stream_id);
+	virtual int play(std::string stream, int stream_id);
+	virtual int publish(std::string stream, int stream_id);
 };
 };
 
 
 /**
 /**

@@ -409,17 +409,6 @@ int SrsSource::on_meta_data(SrsCommonMessage* msg, SrsOnMetaDataPacket* metadata
 		return ret;
 		return ret;
 	}
 	}
 #endif
 #endif
-
-	if (true) {
-		std::vector<SrsForwarder*>::iterator it;
-		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
-			SrsForwarder* forwarder = *it;
-			if ((ret = forwarder->on_meta_data(metadata)) != ERROR_SUCCESS) {
-				srs_error("forwarder process onMetaData message failed. ret=%d", ret);
-				return ret;
-			}
-		}
-	}
 	
 	
 	metadata->metadata->set("server", new SrsAmf0String(
 	metadata->metadata->set("server", new SrsAmf0String(
 		RTMP_SIG_SRS_KEY" "RTMP_SIG_SRS_VERSION" ("RTMP_SIG_SRS_URL_SHORT")"));
 		RTMP_SIG_SRS_KEY" "RTMP_SIG_SRS_VERSION" ("RTMP_SIG_SRS_URL_SHORT")"));
@@ -477,6 +466,18 @@ int SrsSource::on_meta_data(SrsCommonMessage* msg, SrsOnMetaDataPacket* metadata
 		srs_trace("dispatch metadata success.");
 		srs_trace("dispatch metadata success.");
 	}
 	}
 	
 	
+	// copy to all forwarders
+	if (true) {
+		std::vector<SrsForwarder*>::iterator it;
+		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
+			SrsForwarder* forwarder = *it;
+			if ((ret = forwarder->on_meta_data(cache_metadata->copy())) != ERROR_SUCCESS) {
+				srs_error("forwarder process onMetaData message failed. ret=%d", ret);
+				return ret;
+			}
+		}
+	}
+	
 	return ret;
 	return ret;
 }
 }
 
 
@@ -498,17 +499,6 @@ int SrsSource::on_audio(SrsCommonMessage* audio)
 		return ret;
 		return ret;
 	}
 	}
 #endif
 #endif
-
-	if (true) {
-		std::vector<SrsForwarder*>::iterator it;
-		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
-			SrsForwarder* forwarder = *it;
-			if ((ret = forwarder->on_audio(msg->copy())) != ERROR_SUCCESS) {
-				srs_error("forwarder process audio message failed. ret=%d", ret);
-				return ret;
-			}
-		}
-	}
 	
 	
 	// copy to all consumer
 	// copy to all consumer
 	if (true) {
 	if (true) {
@@ -523,6 +513,18 @@ int SrsSource::on_audio(SrsCommonMessage* audio)
 		srs_info("dispatch audio success.");
 		srs_info("dispatch audio success.");
 	}
 	}
 
 
+	// copy to all forwarders.
+	if (true) {
+		std::vector<SrsForwarder*>::iterator it;
+		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
+			SrsForwarder* forwarder = *it;
+			if ((ret = forwarder->on_audio(msg->copy())) != ERROR_SUCCESS) {
+				srs_error("forwarder process audio message failed. ret=%d", ret);
+				return ret;
+			}
+		}
+	}
+
 	// cache the sequence header if h264
 	// cache the sequence header if h264
 	if (SrsCodec::audio_is_sequence_header(msg->payload, msg->size)) {
 	if (SrsCodec::audio_is_sequence_header(msg->payload, msg->size)) {
 		srs_freep(cache_sh_audio);
 		srs_freep(cache_sh_audio);
@@ -559,17 +561,6 @@ int SrsSource::on_video(SrsCommonMessage* video)
 		return ret;
 		return ret;
 	}
 	}
 #endif
 #endif
-
-	if (true) {
-		std::vector<SrsForwarder*>::iterator it;
-		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
-			SrsForwarder* forwarder = *it;
-			if ((ret = forwarder->on_video(msg->copy())) != ERROR_SUCCESS) {
-				srs_error("forwarder process video message failed. ret=%d", ret);
-				return ret;
-			}
-		}
-	}
 	
 	
 	// copy to all consumer
 	// copy to all consumer
 	if (true) {
 	if (true) {
@@ -584,6 +575,18 @@ int SrsSource::on_video(SrsCommonMessage* video)
 		srs_info("dispatch video success.");
 		srs_info("dispatch video success.");
 	}
 	}
 
 
+	// copy to all forwarders.
+	if (true) {
+		std::vector<SrsForwarder*>::iterator it;
+		for (it = forwarders.begin(); it != forwarders.end(); ++it) {
+			SrsForwarder* forwarder = *it;
+			if ((ret = forwarder->on_video(msg->copy())) != ERROR_SUCCESS) {
+				srs_error("forwarder process video message failed. ret=%d", ret);
+				return ret;
+			}
+		}
+	}
+
 	// cache the sequence header if h264
 	// cache the sequence header if h264
 	if (SrsCodec::video_is_sequence_header(msg->payload, msg->size)) {
 	if (SrsCodec::video_is_sequence_header(msg->payload, msg->size)) {
 		srs_freep(cache_sh_video);
 		srs_freep(cache_sh_video);