初始提交

2026-06-23 09:22:21 +08:00 · 2017-04-01 16:35:56 +08:00
parent aef0ecbcb9
commit 3f73024a9b
131 changed files with 18216 additions and 0 deletions
--- a/src/RTP/RtpMakerH264.cpp
+++ b/src/RTP/RtpMakerH264.cpp
@@ -0,0 +1,98 @@
+/*
+ * RtpMakerH264.cpp
+ *
+ *  Created on: 2016年8月12日
+ *      Author: xzl
+ */
+
+#include <netinet/in.h>
+#include "RtpMakerH264.h"
+#include "config.h"
+#include "Util/mini.hpp"
+
+using namespace ZL::Util;
+
+namespace ZL {
+namespace Rtsp {
+
+void RtpMaker_H264::makeRtp(const char* pcData, int iLen, uint32_t uiStamp) {
+	static uint32_t cycleMS = mINI::Instance()[Config::Rtp::kCycleMS].as<uint32_t>();
+	uiStamp %= cycleMS;
+	int iSize = m_iMtuSize - 2;
+	if (iLen > iSize) { //超过MTU
+		const unsigned char s_e_r_Start = 0x80;
+		const unsigned char s_e_r_Mid = 0x00;
+		const unsigned char s_e_r_End = 0x40;
+		//获取帧头数据，1byte
+		unsigned char naluType = *((unsigned char *) pcData) & 0x1f; //获取NALU的5bit 帧类型
+
+		unsigned char nal_ref_idc = *((unsigned char *) pcData) & 0x60; //获取NALU的2bit 帧重要程度 00 可以丢 11不能丢
+		//nal_ref_idc = 0x60;
+		//组装FU-A帧头数据 2byte
+		unsigned char f_nri_type = nal_ref_idc + 28;//F为0 1bit,nri上面获取到2bit,28为FU-A分片类型5bit
+		unsigned char s_e_r_type = naluType;
+		bool bFirst = true;
+		bool mark = false;
+		int nOffset = 1;
+		while (!mark) {
+			if (iLen < nOffset + iSize) {			//是否拆分结束
+				iSize = iLen - nOffset;
+				mark = true;
+				s_e_r_type = s_e_r_End + naluType;
+			} else {
+				if (bFirst == true) {
+					s_e_r_type = s_e_r_Start + naluType;
+					bFirst = false;
+				} 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);
+			nOffset += iSize;
+			makeH264Rtp(aucSectionBuf, iSize + 2, mark, uiStamp);
+		}
+	} else {
+		makeH264Rtp(pcData, iLen, true, uiStamp);
+	}
+}
+
+inline void RtpMaker_H264::makeH264Rtp(const void* data, unsigned int len, bool mark, uint32_t uiStamp) {
+	uint16_t ui16RtpLen = len + 12;
+	m_ui32TimeStamp = (m_ui32SampleRate / 1000) * uiStamp;
+	uint32_t ts = htonl(m_ui32TimeStamp);
+	uint16_t sq = htons(m_ui16Sequence);
+	uint32_t sc = htonl(m_ui32Ssrc);
+
+	auto pRtppkt = obtainPkt();
+	auto &rtppkt = *(pRtppkt.get());
+	unsigned char *pucRtp = rtppkt.payload;
+	pucRtp[0] = '$';
+	pucRtp[1] = m_ui8Interleaved;
+	pucRtp[2] = ui16RtpLen >> 8;
+	pucRtp[3] = ui16RtpLen & 0x00FF;
+	pucRtp[4] = 0x80;
+	pucRtp[5] = (mark << 7) | m_ui8PlayloadType;
+	memcpy(&pucRtp[6], &sq, 2);
+	memcpy(&pucRtp[8], &ts, 4);
+	//ssrc
+	memcpy(&pucRtp[12], &sc, 4);
+	memcpy(&pucRtp[16], data, len);
+	rtppkt.PT = m_ui8PlayloadType;
+	rtppkt.interleaved = m_ui8Interleaved;
+	rtppkt.mark = mark;
+	rtppkt.length = len + 16;
+	rtppkt.sequence = m_ui16Sequence;
+	rtppkt.timeStamp = m_ui32TimeStamp;
+	rtppkt.ssrc = m_ui32Ssrc;
+	rtppkt.type = TrackVideo;
+	uint8_t type = ((uint8_t *) (data))[0] & 0x1F;
+	memcpy(rtppkt.payload + 16, data, len);
+	onMakeRtp(pRtppkt, type == 5);
+	m_ui16Sequence++;
+	//InfoL<<timeStamp<<" "<<time<<" "<<sampleRate;
+}
+
+} /* namespace RTP */
+} /* namespace ZL */