diff --git a/src/Common/Device.cpp b/src/Common/Device.cpp
index 163541ba..0e4bebdf 100644
--- a/src/Common/Device.cpp
+++ b/src/Common/Device.cpp
@@ -35,31 +35,15 @@ using namespace toolkit;
 
 namespace mediakit {
 
-#if 0
 DevChannel::DevChannel(const char *strVhost,
                        const char *strApp,
                        const char *strId,
                        float fDuration,
                        bool bEanbleHls,
-                       bool bEnableMp4 ) :
-        RtspToRtmpMediaSource(strVhost,strApp,strId,bEanbleHls,bEnableMp4) {
+                       bool bEnableMp4) :
+        MultiMediaSourceMuxer(strVhost, strApp, strId, fDuration, bEanbleHls, bEnableMp4) {}
 
-	_strSdp = "v=0\r\n";
-	_strSdp += "o=- 1383190487994921 1 IN IP4 0.0.0.0\r\n";
-	_strSdp += "s=RTSP Session, streamed by the ZL\r\n";
-	_strSdp += "i=ZL Live Stream\r\n";
-	_strSdp += "c=IN IP4 0.0.0.0\r\n";
-	_strSdp += "t=0 0\r\n";
-	//直播，时间长度永远
-	if(fDuration <= 0){
-		_strSdp += "a=range:npt=0-\r\n";
-	}else{
-		_strSdp += StrPrinter <<"a=range:npt=0-" << fDuration  << "\r\n" << endl;
-	}
-	_strSdp += "a=control:*\r\n";
-}
-DevChannel::~DevChannel() {
-}
+DevChannel::~DevChannel() {}
 
 #ifdef ENABLE_X264
 void DevChannel::inputYUV(char* apcYuv[3], int aiYuvLen[3], uint32_t uiStamp) {
@@ -100,211 +84,70 @@ void DevChannel::inputPCM(char* pcData, int iDataLen, uint32_t uiStamp) {
 }
 #endif //ENABLE_FAAC
 
-void DevChannel::inputH264(const char* pcData, int iDataLen, uint32_t uiStamp) {
-	if (!_pRtpMaker_h264) {
-		uint32_t ui32Ssrc;
-		memcpy(&ui32Ssrc, makeRandStr(4, false).data(), 4);
-		auto lam = [this](const RtpPacket::Ptr &pkt, bool bKeyPos) {
-			onWrite(pkt,bKeyPos);
-		};
-        GET_CONFIG_AND_REGISTER(uint32_t,videoMtu,Rtp::kVideoMtuSize);
-		_pRtpMaker_h264.reset(new RtpMaker_H264(lam, ui32Ssrc,videoMtu));
-	}
-	if (!_bSdp_gotH264 && _video) {
-		makeSDP_264((unsigned char*) pcData, iDataLen);
-	}
-	int iOffset = 4;
-	if (memcmp("\x00\x00\x01", pcData, 3) == 0) {
-		iOffset = 3;
-	}
+void DevChannel::inputH264(const char* pcData, int iDataLen, uint32_t uiStamp , int prefixeSize) {
     if(uiStamp == 0){
         uiStamp = (uint32_t)_aTicker[0].elapsedTime();
     }
-	_pRtpMaker_h264->makeRtp(pcData + iOffset, iDataLen - iOffset, uiStamp);
+    inputFrame(std::make_shared<H264FrameNoCopyAble>((char *)pcData,iDataLen,uiStamp,prefixeSize));
 }
 
 void DevChannel::inputAAC(const char* pcData, int iDataLen, uint32_t uiStamp,bool withAdtsHeader) {
 	if(withAdtsHeader){
 		inputAAC(pcData+7,iDataLen-7,uiStamp,pcData);
-	} else if(_pAdtsHeader){
-		_pAdtsHeader->aac_frame_length = iDataLen;
-		writeAdtsHeader(*_pAdtsHeader,(uint8_t *)_pAdtsHeader->buffer);
-		inputAAC(pcData,iDataLen,uiStamp,(const char *)_pAdtsHeader->buffer);
+	} else {
+		inputAAC(pcData,iDataLen,uiStamp,(char *)_adtsHeader);
 	}
 }
+
 void DevChannel::inputAAC(const char *pcDataWithoutAdts,int iDataLen, uint32_t uiStamp,const char *pcAdtsHeader){
-	if (!_pRtpMaker_aac) {
-		uint32_t ssrc;
-		memcpy(&ssrc, makeRandStr(8, false).data() + 4, 4);
-		auto lam = [this](const RtpPacket::Ptr &pkt, bool keyPos) {
-			onWrite(pkt,keyPos);
-		};
-        GET_CONFIG_AND_REGISTER(uint32_t,audioMtu,Rtp::kAudioMtuSize);
-        _pRtpMaker_aac.reset(new RtpMaker_AAC(lam, ssrc, audioMtu,_audio->iSampleRate));
-	}
-	if (!_bSdp_gotAAC && _audio && pcAdtsHeader) {
-		makeSDP_AAC((unsigned char*) pcAdtsHeader);
-	}
     if(uiStamp == 0){
         uiStamp = (uint32_t)_aTicker[1].elapsedTime();
     }
-    if(pcDataWithoutAdts && iDataLen){
-        _pRtpMaker_aac->makeRtp(pcDataWithoutAdts, iDataLen, uiStamp);
-    }
-}
-
-inline void DevChannel::makeSDP_264(unsigned char *pcData, int iDataLen) {
-	int offset = 4;
-	if (memcmp("\x00\x00\x01", pcData, 3) == 0) {
-		offset = 3;
-	}
-	switch (pcData[offset] & 0x1F) {
-	case 7:/*SPS frame*/
-	{
-		if (_uiSPSLen != 0) {
-			break;
-		}
-		memcpy(_aucSPS, pcData + offset, iDataLen - offset);
-		_uiSPSLen = iDataLen - offset;
-	}
-		break;
-	case 8:/*PPS frame*/
-	{
-		if (_uiPPSLen != 0) {
-			break;
-		}
-		memcpy(_aucPPS, pcData + offset, iDataLen - offset);
-		_uiPPSLen = iDataLen - offset;
-	}
-		break;
-	default:
-		break;
-	}
-	if (!_uiSPSLen || !_uiPPSLen) {
-		return;
-	}
-
-	char acTmp[256];
-	int profile_level_id = 0;
-	if (_uiSPSLen >= 4) { // sanity check
-		profile_level_id = (_aucSPS[1] << 16) | (_aucSPS[2] << 8) | _aucSPS[3]; // profile_idc|constraint_setN_flag|level_idc
-	}
-
-	//视频通道
-	_strSdp += StrPrinter << "m=video 0 RTP/AVP "
-			<< _pRtpMaker_h264->getPlayloadType() << "\r\n" << endl;
-	_strSdp += "b=AS:5100\r\n";
-	_strSdp += StrPrinter << "a=rtpmap:" << _pRtpMaker_h264->getPlayloadType()
-			<< " H264/" << _pRtpMaker_h264->getSampleRate() << "\r\n" << endl;
-	_strSdp += StrPrinter << "a=fmtp:" << _pRtpMaker_h264->getPlayloadType()
-			<< " packetization-mode=1;profile-level-id=" << endl;
-
-	memset(acTmp, 0, sizeof(acTmp));
-	sprintf(acTmp, "%06X", profile_level_id);
-	_strSdp += acTmp;
-	_strSdp += ";sprop-parameter-sets=";
-	memset(acTmp, 0, sizeof(acTmp));
-	av_base64_encode(acTmp, sizeof(acTmp), (uint8_t *) _aucSPS, _uiSPSLen);
-	//WarnL<<"SPS base64:"<<strTemp;
-	//WarnL<<"SPS hexdump:"<<hexdump(SPS_BUF, SPS_LEN);
-	_strSdp += acTmp;
-	_strSdp += ",";
-	memset(acTmp, 0, sizeof(acTmp));
-	av_base64_encode(acTmp, sizeof(acTmp), (uint8_t *) _aucPPS, _uiPPSLen);
-	_strSdp += acTmp;
-	_strSdp += "\r\n";
-	if (_video->iFrameRate > 0 && _video->iHeight > 0 && _video->iWidth > 0) {
-		_strSdp += "a=framerate:";
-		_strSdp += StrPrinter << _video->iFrameRate << endl;
-		_strSdp += StrPrinter << "\r\na=framesize:"
-				<< _pRtpMaker_h264->getPlayloadType() << " " << endl;
-		_strSdp += StrPrinter << _video->iWidth << endl;
-		_strSdp += "-";
-		_strSdp += StrPrinter << _video->iHeight << endl;
-		_strSdp += "\r\n";
-	}
-	_strSdp += StrPrinter << "a=control:trackID="
-			<< _pRtpMaker_h264->getInterleaved() / 2 << "\r\n" << endl;
-	_bSdp_gotH264 = true;
-	if (_audio) {
-		if (_bSdp_gotAAC) {
-			makeSDP(_strSdp);
-		}
+    if(pcAdtsHeader + 7 == pcDataWithoutAdts){
+		inputFrame(std::make_shared<AACFrameNoCopyAble>((char *)pcDataWithoutAdts - 7,iDataLen + 7,uiStamp,7));
 	} else {
-		makeSDP(_strSdp);
+    	char *dataWithAdts = new char[iDataLen + 7];
+		memcpy(dataWithAdts,pcAdtsHeader,7);
+    	memcpy(dataWithAdts + 7 , pcDataWithoutAdts , iDataLen);
+		inputFrame(std::make_shared<AACFrameNoCopyAble>(dataWithAdts,iDataLen + 7,uiStamp,7));
+		delete [] dataWithAdts;
 	}
 }
 
-inline void DevChannel::makeSDP_AAC(unsigned char *fixedHeader) {
-	auto audioSpecificConfig = makeAdtsConfig(fixedHeader);
-	if (audioSpecificConfig.size() != 2) {
-		return;
-	}
-
-	char fConfigStr[5] = { 0 };
-	sprintf(fConfigStr, "%02X%02x", (uint8_t)audioSpecificConfig[0],(uint8_t)audioSpecificConfig[1]);
-
-	_strSdp += StrPrinter << "m=audio 0 RTP/AVP "
-			<< _pRtpMaker_aac->getPlayloadType() << "\r\n" << endl;
-	_strSdp += "b=AS:96\r\n";
-	_strSdp += StrPrinter << "a=rtpmap:" << _pRtpMaker_aac->getPlayloadType()
-			<< " MPEG4-GENERIC/" << _pRtpMaker_aac->getSampleRate() << "\r\n"
-			<< endl;
-	_strSdp += StrPrinter << "a=fmtp:" << _pRtpMaker_aac->getPlayloadType()
-				<< " streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config="
-				<< endl;
-	_strSdp += fConfigStr;
-	_strSdp += "\r\n";
-	_strSdp += StrPrinter << "a=control:trackID="
-			<< _pRtpMaker_aac->getInterleaved() / 2 << "\r\n" << endl;
-
-	_bSdp_gotAAC = true;
-	if (_video) {
-		if (_bSdp_gotH264) {
-			makeSDP(_strSdp);
-		}
-	} else {
-		makeSDP(_strSdp);
-	}
-}
-
-void DevChannel::makeSDP(const string& strSdp) {
-	onGetSDP(strSdp);
-}
 
 void DevChannel::initVideo(const VideoInfo& info) {
-	_video.reset(new VideoInfo(info));
+	_video = std::make_shared<VideoInfo>(info);
+	addTrack(std::make_shared<H264Track>());
 }
 
 void DevChannel::initAudio(const AudioInfo& info) {
-	_audio.reset(new AudioInfo(info));
-	_pAdtsHeader = std::make_shared<AACFrame>();
+	_audio = std::make_shared<AudioInfo>(info);
+	addTrack(std::make_shared<AACTrack>());
 
-	_pAdtsHeader->syncword = 0x0FFF;
-	_pAdtsHeader->id = 0;
-	_pAdtsHeader->layer = 0;
-	_pAdtsHeader->protection_absent = 1;
-	_pAdtsHeader->profile =  info.iProfile;//audioObjectType - 1;
+	AACFrame adtsHeader;
+	adtsHeader.syncword = 0x0FFF;
+	adtsHeader.id = 0;
+	adtsHeader.layer = 0;
+	adtsHeader.protection_absent = 1;
+	adtsHeader.profile =  info.iProfile;//audioObjectType - 1;
 	int i = 0;
 	for(auto rate : samplingFrequencyTable){
 		if(rate == info.iSampleRate){
-			_pAdtsHeader->sf_index = i;
+			adtsHeader.sf_index = i;
 		};
 		++i;
 	}
-
-	_pAdtsHeader->private_bit = 0;
-	_pAdtsHeader->channel_configuration = info.iChannel;
-	_pAdtsHeader->original = 0;
-	_pAdtsHeader->home = 0;
-	_pAdtsHeader->copyright_identification_bit = 0;
-	_pAdtsHeader->copyright_identification_start = 0;
-	_pAdtsHeader->aac_frame_length = 7;
-	_pAdtsHeader->adts_buffer_fullness = 2047;
-	_pAdtsHeader->no_raw_data_blocks_in_frame = 0;
-
+	adtsHeader.private_bit = 0;
+	adtsHeader.channel_configuration = info.iChannel;
+	adtsHeader.original = 0;
+	adtsHeader.home = 0;
+	adtsHeader.copyright_identification_bit = 0;
+	adtsHeader.copyright_identification_start = 0;
+	adtsHeader.aac_frame_length = 7;
+	adtsHeader.adts_buffer_fullness = 2047;
+	adtsHeader.no_raw_data_blocks_in_frame = 0;
+	writeAdtsHeader(adtsHeader,_adtsHeader);
 }
 
-#endif
 } /* namespace mediakit */
 
diff --git a/src/Common/Device.h b/src/Common/Device.h
index 01019d20..032e89fc 100644
--- a/src/Common/Device.h
+++ b/src/Common/Device.h
@@ -31,10 +31,8 @@
 #include <string>
 #include <functional>
 #include "Util/util.h"
-#include "Player/Player.h"
-#include "Rtsp/RtspToRtmpMediaSource.h"
-#include "RtspMuxer/RtspSdp.h"
 #include "Util/TimeTicker.h"
+#include "Player/Player.h"
 #include "Common/MultiMediaSourceMuxer.h"
 
 using namespace std;
@@ -52,7 +50,6 @@ using namespace toolkit;
 
 namespace mediakit {
 
-#if 0
 class VideoInfo {
 public:
 	int iWidth;
@@ -67,37 +64,85 @@ public:
 	int iProfile;
 };
 
-class DevChannel  : public RtspToRtmpMediaSource{
+/**
+ * 该类已经废弃，保留只为兼容旧代码，请直接使用MultiMediaSourceMuxer类！
+ */
+class DevChannel  : public MultiMediaSourceMuxer{
 public:
 	typedef std::shared_ptr<DevChannel> Ptr;
     //fDuration<=0为直播，否则为点播
-	DevChannel(const char *strVhost,
+    DevChannel(const char *strVhost,
                const char *strApp,
                const char *strId,
                float fDuration = 0,
                bool bEanbleHls = true,
                bool bEnableMp4 = false);
+
 	virtual ~DevChannel();
 
-	void initVideo(const VideoInfo &info);
+	/**
+	 * 初始化h264视频Track
+	 * 相当于MultiMediaSourceMuxer::addTrack(H264Track::Ptr );
+	 * @param info
+	 */
+    void initVideo(const VideoInfo &info);
+
+    /**
+     * 初始化aac音频Track
+     * 相当于MultiMediaSourceMuxer::addTrack(AACTrack::Ptr );
+     * @param info
+     */
 	void initAudio(const AudioInfo &info);
 
-	void inputH264(const char *pcData, int iDataLen, uint32_t uiStamp);
+	/**
+	 * 输入264帧
+	 * @param pcData 264单帧数据指针
+	 * @param iDataLen 数据指针长度
+	 * @param uiStamp 时间戳，单位毫秒
+	 * @param prefixSize 264 其实头字节数，起始头可以是0x00 00 00 01 或 0x 00 00 01 或者没有起始头
+	 */
+	void inputH264(const char *pcData, int iDataLen, uint32_t uiStamp,int prefixSize = 4);
+
+	/**
+	 * 输入可能带adts头的aac帧
+	 * @param pcDataWithAdts 可能带adts头的aac帧
+	 * @param iDataLen 帧数据长度
+	 * @param uiStamp 时间戳，单位毫秒
+	 * @param withAdtsHeader 是否带adts头
+	 */
 	void inputAAC(const char *pcDataWithAdts, int iDataLen, uint32_t uiStamp, bool withAdtsHeader = true);
+
+	/**
+	 * 输入不带adts头的aac帧
+	 * @param pcDataWithoutAdts 不带adts头的aac帧
+	 * @param iDataLen 帧数据长度
+	 * @param uiStamp 时间戳，单位毫秒
+	 * @param pcAdtsHeader adts头
+	 */
 	void inputAAC(const char *pcDataWithoutAdts,int iDataLen, uint32_t uiStamp,const char *pcAdtsHeader);
 
 #ifdef ENABLE_X264
-        void inputYUV(char *apcYuv[3], int aiYuvLen[3], uint32_t uiStamp);
+	/**
+	 * 输入yuv420p视频帧，内部会完成编码并调用inputH264方法
+	 * @param apcYuv
+	 * @param aiYuvLen
+	 * @param uiStamp
+	 */
+    void inputYUV(char *apcYuv[3], int aiYuvLen[3], uint32_t uiStamp);
 #endif //ENABLE_X264
 
 #ifdef ENABLE_FAAC
-        void inputPCM(char *pcData, int iDataLen, uint32_t uiStamp);
+
+    /**
+     * 输入pcm数据，内部会完成编码并调用inputAAC方法
+     * @param pcData
+     * @param iDataLen
+     * @param uiStamp
+     */
+    void inputPCM(char *pcData, int iDataLen, uint32_t uiStamp);
 #endif //ENABLE_FAAC
 
 private:
-	inline void makeSDP_264(unsigned char *pucData, int iDataLen);
-	inline void makeSDP_AAC(unsigned char *pucData);
-	inline void makeSDP(const string& strSdp);
 #ifdef ENABLE_X264
 	std::shared_ptr<H264Encoder> _pH264Enc;
 #endif //ENABLE_X264
@@ -105,25 +150,13 @@ private:
 #ifdef ENABLE_FAAC
 	std::shared_ptr<AACEncoder> _pAacEnc;
 #endif //ENABLE_FAAC
-	RtpMaker_AAC::Ptr _pRtpMaker_aac;
-	RtpMaker_H264::Ptr _pRtpMaker_h264;
-	bool _bSdp_gotH264 = false;
-	bool _bSdp_gotAAC = false;
+    std::shared_ptr<VideoInfo> _video;
+    std::shared_ptr<AudioInfo> _audio;
 
-	unsigned char _aucSPS[256];
-	unsigned int _uiSPSLen = 0;
-	unsigned char _aucPPS[256];
-	unsigned int _uiPPSLen = 0;
-	std::shared_ptr<VideoInfo> _video;
-	std::shared_ptr<AudioInfo> _audio;
     SmoothTicker _aTicker[2];
-	std::shared_ptr<AACFrame> _pAdtsHeader;
+    uint8_t _adtsHeader[7];
 };
 
-#endif //0
-
-typedef MultiMediaSourceMuxer DevChannel;
-
 } /* namespace mediakit */
 
 #endif /* DEVICE_DEVICE_H_ */
diff --git a/src/MediaFile/HLSMaker.cpp b/src/MediaFile/HLSMaker.cpp
index 35e88d77..221ac9ac 100644
--- a/src/MediaFile/HLSMaker.cpp
+++ b/src/MediaFile/HLSMaker.cpp
@@ -185,10 +185,10 @@ bool HLSMaker::removets() {
 void HLSMaker::onTrackFrame(const Frame::Ptr &frame) {
 	switch (frame->getCodecId()){
 		case CodecH264:{
-			if( frame->prefixSize() == 4){
+			if( frame->prefixSize() != 0){
 				inputH264(frame->data(), frame->size(),frame->stamp());
 			}else{
-				WarnL << "h264必须要有头4个字节的前缀";
+				WarnL << "h264必须要有头4个或3个字节的前缀";
 			}
 		}
 			break;