rtp打包减少一次内存拷贝

src/Extension/H264Rtp.cpp

@@ -265,11 +265,22 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
             } else {
                 s_e_r_type = s_e_r_Mid + naluType;
             }
-            memcpy(_aucSectionBuf, &f_nri_type, 1);
-            memcpy(_aucSectionBuf + 1, &s_e_r_type, 1);
-            memcpy(_aucSectionBuf + 2, (unsigned char *) pcData + nOffset, iSize);
+
+            {
+                //传入nullptr先不做payload的内存拷贝
+                auto rtp = makeRtp(getTrackType(), nullptr, iSize + 2, mark, uiStamp);
+                //rtp payload 负载部分
+                uint8_t *payload = (uint8_t*)rtp->data() + rtp->offset;
+                //FU-A 第1个字节
+                memcpy(payload, &f_nri_type, 1);
+                //FU-A 第2个字节
+                memcpy(payload + 1, &s_e_r_type, 1);
+                //H264 数据
+                memcpy(payload + 2, (unsigned char *) pcData + nOffset, iSize);
+                //输入到rtp环形缓存
+                RtpCodec::inputRtp(rtp,bFirst && naluType == H264Frame::NAL_IDR);
+            }
             nOffset += iSize;
-            makeH264Rtp(naluType,_aucSectionBuf, iSize + 2, mark,bFirst, uiStamp);
             bFirst = false;
         }
     } else {

src/Extension/H264Rtp.h

@@ -97,8 +97,6 @@ public:
     void inputFrame(const Frame::Ptr &frame) override;
 private:
     void makeH264Rtp(int nal_type,const void *pData, unsigned int uiLen, bool bMark,  bool first_packet, uint32_t uiStamp);
-private:
-    unsigned char _aucSectionBuf[1600];
 };
 
 }//namespace mediakit{

src/Extension/H265Rtp.cpp

@@ -194,13 +194,24 @@ void H265RtpEncoder::inputFrame(const Frame::Ptr &frame) {
                 s_e_type = naluType;
             }
 
-            //FU type
-            _aucSectionBuf[0] = 49 << 1;
-            _aucSectionBuf[1] = 1;
-            _aucSectionBuf[2] = s_e_type;
-            memcpy(_aucSectionBuf + 3, pcData + nOffset, maxSize);
+            {
+                //传入nullptr先不做payload的内存拷贝
+                auto rtp = makeRtp(getTrackType(), nullptr, maxSize + 3, mark, uiStamp);
+                //rtp payload 负载部分
+                uint8_t *payload = (uint8_t*)rtp->data() + rtp->offset;
+                //FU-A 第1个字节
+                payload[0] = 49 << 1;
+                //FU-A 第2个字节貌似固定为1
+                payload[1] = 1;
+                //FU-A 第3个字节
+                payload[2] = s_e_type;
+                //H265 数据
+                memcpy(payload + 3,pcData + nOffset, maxSize);
+                //输入到rtp环形缓存
+                RtpCodec::inputRtp(rtp,bFirst && H265Frame::isKeyFrame(naluType));
+            }
+
             nOffset += maxSize;
-            makeH265Rtp(naluType,_aucSectionBuf, maxSize + 3, mark,bFirst, uiStamp);
             bFirst = false;
         }
     } else {

src/Extension/H265Rtp.h

@@ -98,8 +98,6 @@ public:
     void inputFrame(const Frame::Ptr &frame) override;
 private:
     void makeH265Rtp(int nal_type,const void *pData, unsigned int uiLen, bool bMark, bool first_packet,uint32_t uiStamp);
-private:
-    unsigned char _aucSectionBuf[1600];
 };
 
 }//namespace mediakit{

src/Rtsp/RtpCodec.cpp

@@ -49,8 +49,11 @@ RtpPacket::Ptr RtpInfo::makeRtp(TrackType type, const void* data, unsigned int l
     memcpy(&pucRtp[8], &ts, 4);
     //ssrc
     memcpy(&pucRtp[12], &sc, 4);
-    //playload
-    memcpy(&pucRtp[16], data, len);
+
+    if(data){
+        //playload
+        memcpy(&pucRtp[16], data, len);
+    }
 
     rtppkt->PT = _ui8PlayloadType;
     rtppkt->interleaved = _ui8Interleaved;