修正rtmp绝对时间戳的bug

src/Rtmp/RtmpProtocol.cpp

@@ -210,7 +210,7 @@ void RtmpProtocol::startClientSession(const function<void()> &callBack) {
 	//发送 C0C1
 	char handshake_head = HANDSHAKE_PLAINTEXT;
 	onSendRawData(&handshake_head, 1);
-	RtmpHandshake c1(::time(NULL));
+	RtmpHandshake c1(0);
 	onSendRawData((char *) (&c1), sizeof(c1));
 	m_nextHandle = [this,callBack]() {
 		//等待 S0+S1+S2
@@ -388,7 +388,7 @@ void RtmpProtocol::send_complex_S0S1S2(int schemeType,const string &digest){
 	char handshake_head = HANDSHAKE_PLAINTEXT;
 	onSendRawData(&handshake_head, 1);
 	//S1
-	RtmpHandshake s1(time(NULL));
+	RtmpHandshake s1(0);
 	memcpy(s1.zero,"\x04\x05\x00\x01",4);
 	char *digestPos;
 	if(schemeType == 0){

src/Rtmp/RtmpSession.cpp

@@ -342,7 +342,20 @@ void RtmpSession::onCmd_seek(AMFDecoder &dec) {
 }
 
 void RtmpSession::onSendMedia(const RtmpPacket& pkt) {
-	sendRtmp(pkt.typeId, pkt.streamId, pkt.strBuf, pkt.timeStamp, pkt.chunkId);
+	auto modifiedStamp = pkt.timeStamp;
+	auto &firstStamp = m_aui32FirstStamp[pkt.typeId % 2];
+	if(!firstStamp){
+		firstStamp = modifiedStamp;
+	}
+	if(modifiedStamp >= firstStamp){
+		//计算时间戳增量
+		modifiedStamp -= firstStamp;
+	}else{
+		//发生回环，重新计算时间戳增量
+		CLEAR_ARR(m_aui32FirstStamp);
+		modifiedStamp = 0;
+	}
+	sendRtmp(pkt.typeId, pkt.streamId, pkt.strBuf, modifiedStamp, pkt.chunkId);
 }
 
 } /* namespace Rtmp */

src/Rtmp/RtmpSession.h

@@ -46,6 +46,7 @@ private:
 	std::shared_ptr<RtmpMediaSource> m_pPublisherSrc;
 	bool m_bPublisherSrcRegisted = false;
     std::weak_ptr<RtmpMediaSource> m_pPlayerSrc;
+    uint32_t m_aui32FirstStamp[2] = {0};
 
 	void onProcessCmd(AMFDecoder &dec);
 	void onCmd_connect(AMFDecoder &dec);

src/Rtsp/RtspToRtmpMediaSource.cpp

@@ -118,20 +118,7 @@ void RtspToRtmpMediaSource::onGetH264(const H264Frame& frame) {
 	m_rtmpPkt.bodySize = m_rtmpPkt.strBuf.size();
 	m_rtmpPkt.chunkId = CHUNK_MEDIA;
 	m_rtmpPkt.streamId = STREAM_MEDIA;
-
-	if(!m_aui32FirstStamp[0]){
-		//记录首次时间戳
-		m_aui32FirstStamp[0] = frame.timeStamp;
-	}
-	if(frame.timeStamp >= m_aui32FirstStamp[0]){
-		//计算时间戳增量
-		m_rtmpPkt.timeStamp = frame.timeStamp - m_aui32FirstStamp[0];
-	}else{
-		//发生回环，重新计算时间戳增量
-		CLEAR_ARR(m_aui32FirstStamp);
-		m_rtmpPkt.timeStamp = 0;
-	}
-
+	m_rtmpPkt.timeStamp = frame.timeStamp;
 	m_rtmpPkt.typeId = MSG_VIDEO;
 	m_pRtmpSrc->onGetMedia(m_rtmpPkt);
 }
@@ -150,20 +137,7 @@ void RtspToRtmpMediaSource::onGetAdts(const AdtsFrame& frame) {
 	m_rtmpPkt.bodySize = m_rtmpPkt.strBuf.size();
 	m_rtmpPkt.chunkId = CHUNK_MEDIA;
 	m_rtmpPkt.streamId = STREAM_MEDIA;
-
-	if(!m_aui32FirstStamp[1]){
-		//记录首次时间戳
-		m_aui32FirstStamp[1] = frame.timeStamp;
-	}
-	if(frame.timeStamp >= m_aui32FirstStamp[1]){
-		//计算时间戳增量
-		m_rtmpPkt.timeStamp = frame.timeStamp - m_aui32FirstStamp[1];
-	}else{
-		//发生回环，重新计算时间戳增量
-		CLEAR_ARR(m_aui32FirstStamp);
-		m_rtmpPkt.timeStamp = 0;
-	}
-
+	m_rtmpPkt.timeStamp = frame.timeStamp;
 	m_rtmpPkt.typeId = MSG_AUDIO;
 	m_pRtmpSrc->onGetMedia(m_rtmpPkt);
 }

src/Rtsp/RtspToRtmpMediaSource.h

@@ -84,8 +84,6 @@ private:
 	RtmpMediaSource::Ptr m_pRtmpSrc;
 	RtmpPacket m_rtmpPkt;
 	uint8_t m_ui8AudioFlags = 0;
-	//首次时间戳，m_aui32FirstStamp[0]:视频，m_aui32FirstStamp[1]:音频
-	uint32_t m_aui32FirstStamp[2] = {0,0};
 	MediaRecorder::Ptr m_pRecorder;
 	bool m_bEnableFile = true;
 	void onGetH264(const H264Frame &frame);