javaCV简单解析gb28181的rtp ps流，并推流到rtmp服务

本文转自javacv社区三群管理员“赶在时间前面”：过去的过去了的博客，感谢大佬倾情贡献，支持javacv社区发展和壮大。

国标gb28181全系列都可以参考过去的过去了的博客，再次表示感谢。

解析流程参考 https://blog.csdn.net/chen495810242/article/details/39207305

代码基于github上的修改 https://github.com/yangjiechina/JGB28181

流解析的代码长时间测试海康摄像时还不稳定，所以主要以学习为主，有知道的大佬欢迎指点下=。=

涉及到的相关类

BitUtils

public class BitUtils {public static  int byte2ToInt(byte b1,byte b2){/*int temp1 = b1&0xff ;int temp2 = b2&0xff ;return (temp1<< 8) + temp2;*/return byteToInt(b1,b2);}public static  int byte4ToInt(byte b1,byte b2,byte b3,byte b4){/*int temp1 = b1&0xff ;int temp2 = b2&0xff ;int temp3 = b3&0xff ;int temp4 = b4&0xff ;return (temp1 << 24) + (temp2<< 16)+(temp3<< 8)+temp4;*/return byteToInt(b1,b2,b3,b4);}public static  int byteToInt(byte... bs){int len=bs.length;int temp=0;for(byte b:bs){len--;if(len==0){temp+=(b&0xff);}else{temp+=(((b&0xff)<< (len*8)));}}return temp;}public static void main(String[] args) {String str="0b873697";byte[] bytes=HexStringUtils.chars2Bytes(str.toCharArray());System.out.println(byteToInt(bytes[0],bytes[1],bytes[2],bytes[3]));System.out.println(byte4ToInt(bytes[0],bytes[1],bytes[2],bytes[3]));/*byte[] bytes=str.getBytes();System.out.println(HexStringUtils.toHexString(bytes));*/}
}

HexStringUtils

public class HexStringUtils {private static final char[] DIGITS_HEX = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };protected static char[] encodeHex(byte[] data) {int l = data.length;char[] out = new char[l << 1];for (int i = 0, j = 0; i < l; i++) {out[j++] = DIGITS_HEX[(0xF0 & data[i]) >>> 4];out[j++] = DIGITS_HEX[0x0F & data[i]];}return out;}public static String byte2String(byte b){byte[] data =new byte[1];data[0]=b;int l = data.length;char[] out = new char[l << 1];for (int i = 0, j = 0; i < l; i++) {out[j++] = DIGITS_HEX[(0xF0 & data[i]) >>> 4];out[j++] = DIGITS_HEX[0x0F & data[i]];}return new String(out);}protected static byte[] decodeHex(char[] data) {int len = data.length;if ((len & 0x01) != 0) {throw new RuntimeException("字符个数应该为偶数");}byte[] out = new byte[len >> 1];for (int i = 0, j = 0; j < len; i++) {int f = toDigit(data[j], j) << 4;j++;f |= toDigit(data[j], j);j++;out[i] = (byte) (f & 0xFF);}return out;}protected static int toDigit(char ch, int index) {int digit = Character.digit(ch, 16);if (digit == -1) {throw new RuntimeException("Illegal hexadecimal character " + ch + " at index " + index);}return digit;}public static String toHexString(byte[] bs) {return new String(encodeHex(bs));}public static String hexString2Bytes(String hex) {return new String(decodeHex(hex.toCharArray()));}public static byte[] chars2Bytes(char[] bs) {return decodeHex(bs);}
}

Parser


import com.fengyulei.fylsipserver.media.push.RtmpPusher;import java.util.Map;public interface Parser {/*** TCP包长字节* 2个字节长*/int TCP_PACKET_LENGTH = 2;/*** 有扩展字段，但是没有遇到过。* 基本都为12字节*/int RTP_HEADER_LENGTH = 12;/*** UDP模式，除去rtp头的起始字节*/int UDP_START_INDEX = RTP_HEADER_LENGTH;/*** TCP模式，比UDP模式多2个字节*/int TCP_START_INDEX = TCP_PACKET_LENGTH +RTP_HEADER_LENGTH;/*** UDP模式* ps扩展内容字段索引* rtp(12)+ 00 00 01 ba(4)+10字节(长度固定，最后一个字节低3位，为扩展内容长度)*/int UDP_PS_HEADER_STUFFING_LENGTH_INDEX = 25;/*** TCP模式，依次延长2字节*/int TCP_PS_HEADER_STUFFING_LENGTH_INDEX = UDP_PS_HEADER_STUFFING_LENGTH_INDEX+2;/*** crc32校验* 固定4字节长度*/int CRC_32_LENGTH = 4;void parseUdp(Map<Integer, Packet> packetMap, int firstSeq, int endSeq,RtmpPusher rtmpPusher) throws Exception;void parseTcp(Map<Integer,Packet> packetMap,int firstSeq,int endSeq,RtmpPusher rtmpPusher) throws Exception;
}

Packet

public  class Packet {//I帧public  static final int I = 0;P//P帧public     static final int P = 1;//音频public static final  int AUDIO = 2;//合并包public  static final int SUB_PACKET = 3;private int timeStamp;   private int seq;private byte[] data;private int packetType;public  int getPacketType(){return packetType;}public Packet(int seq, byte[] data, int packetType) {this.seq = seq;this.data = data;this.packetType = packetType;}public byte[] getData(){return data;}public int getTimeStamp() {return timeStamp;}public void setTimeStamp(int timeStamp) {this.timeStamp = timeStamp;}public int getSeq() {return seq;}public void setSeq(int seq) {this.seq = seq;}public void setData(byte[] data) {this.data = data;}
}

udp数据包缓存 SsrcUdpHandler

package com.fengyulei.fylsipserver.media.netty;import com.fengyulei.fylsipserver.media.codec.CommonParser;
import com.fengyulei.fylsipserver.media.codec.Packet;
import com.fengyulei.fylsipserver.media.common.utils.BitUtils;
import com.fengyulei.fylsipserver.media.common.utils.HexStringUtils;
import com.fengyulei.fylsipserver.media.push.RtmpPusher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentLinkedDeque;public class SsrcUdpHandler {private static final Logger logger = LoggerFactory.getLogger(SsrcUdpHandler.class);/*** 存储关键数据包(i/p/audio)seq的map*/private ConcurrentLinkedDeque<Integer> mSeqMap = new ConcurrentLinkedDeque<>();//存储数据包，结合序号功能进行排序private Map<Integer,Packet> mPacketMap = new HashMap<>(60);/*** 第一帧是否为I帧* 不为I帧，直接丢弃*/private boolean mIsFirstI;//流的唯一标识private String ssrc;//推流器，通过构造方法传入private RtmpPusher rtmpPusher;public RtmpPusher getRtmpPusher() {return rtmpPusher;}//rtp ps解析器private CommonParser mParser;//缓存多几帧 一定程度上减少udp包乱序的问题private int CACHE_FRAME_LENGTH= 5;public SsrcUdpHandler(CommonParser mParser,String ssrc){this.mParser=mParser;this.ssrc=ssrc;//该链接可以自行修改rtmpPusher=new RtmpPusher("rtmp://192.168.1.201:1935/live/"+ssrc,ssrc,"UDP");rtmpPusher.startRemux();}public void read(byte[] copyData){int length=copyData.length;//截取序号，具体位置查看文章头解析rtp的博客int seq = BitUtils.byte2ToInt(copyData[2],copyData[3]);try{//保存数据包Packet packet;//去除rtp 12个字节（tcp模式头部为14个字节）请求头后，以000001ba开头的为新的视频帧if(length > 16 && copyData[12] == 0 &&copyData[13] ==0 &&copyData[14] ==01 && (copyData[15]&0xff) == 0xba){int stuffingLength =  copyData[25] & 7;int startIndex = 25+stuffingLength+1;//i帧 000001bbif(copyData[startIndex] == 0 && copyData[startIndex+1] == 0&&copyData[startIndex+2] == 01&&(copyData[startIndex+3]&0xff) == 0xbb ){packet = new Packet(seq,copyData,Packet.I);if(!mIsFirstI){mIsFirstI = true;}}//p帧else{if(!mIsFirstI){return;}packet = new Packet(seq,copyData,Packet.P);}//添加每帧开头的序号，用于排序和分数据包mSeqMap.add(seq);}//音频数据 000001c0else if( length > 16 &&  copyData[12] == 0 &&copyData[13] ==0 &&copyData[14] ==01 && (copyData[15]&0xff) == 0xc0){if(!mIsFirstI){return;}mSeqMap.add(seq);packet = new Packet(seq,copyData,Packet.AUDIO);}else {if(!mIsFirstI){return ;}packet = new Packet(seq,copyData,Packet.SUB_PACKET);}mPacketMap.put(seq, packet);if(mSeqMap.size() >= CACHE_FRAME_LENGTH){//获取最前面一帧的编号 并删除Integer firstSeq = mSeqMap.pop();//获取最前面一帧的编号 减去1 代表一帧的编号范围Integer endSeq = mSeqMap.getFirst()-1;mParser.parseUdp(mPacketMap,firstSeq,endSeq,rtmpPusher);}}catch (Exception e){logger.error(e.getMessage(),e);logger.error("UDPHandler解析异常：[{}]", HexStringUtils.toHexString(copyData));}}
}

tcp数据包缓存 SsrcTcpHandler

import com.fengyulei.fylsipserver.media.codec.CommonParser;
import com.fengyulei.fylsipserver.media.codec.Packet;
import com.fengyulei.fylsipserver.media.common.utils.BitUtils;
import com.fengyulei.fylsipserver.media.common.utils.HexStringUtils;
import com.fengyulei.fylsipserver.media.push.RtmpPusher;
import io.netty.channel.Channel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentLinkedDeque;
//和udp处理类差不多
public class SsrcTcpHandler {private static final Logger logger = LoggerFactory.getLogger(SsrcTcpHandler.class);/*** 存储关键数据包(i/p/audio)seq的map*/private ConcurrentLinkedDeque<Integer> mSeqMap = new ConcurrentLinkedDeque<>();private Map<Integer,Packet> mPacketMap = new HashMap<>(60);/*** 第一帧是否为I帧* 不为I帧，直接丢弃*/private boolean mIsFirstI;private String ssrc;private RtmpPusher rtmpPusher;public RtmpPusher getRtmpPusher() {return rtmpPusher;}//tcp每个实例都保存有一个通道，可以保存，方便关闭链接private Channel channel;public Channel getChannel() {return channel;}public void setChannel(Channel channel) {this.channel = channel;}//解释器private CommonParser mParser;//tcp缓存数据包个数少些，udp会多些，防止udp乱序private int CACHE_FRAME_LENGTH= 2;//创建tcp推流器public SsrcTcpHandler(CommonParser mParser, String ssrc){this.mParser=mParser;this.ssrc=ssrc;//推送路径可以作为参数传入，或配置文件获取rtmpPusher=new RtmpPusher("rtmp://192.168.1.201:1935/live/"+ssrc,ssrc,"TCP");rtmpPusher.startRemux();}public void read(byte[] copyData){int length=copyData.length;//截取序号，具体位置查看文章头解析rtp的博客int seq = BitUtils.byte2ToInt(copyData[4],copyData[5]);try{Packet packet;if(length > 18 && copyData[14] == 0 &&copyData[15] ==0 &&copyData[16] ==01 && (copyData[17]&0xff) == 0xba){int stuffingLength =  copyData[27] & 7;int startIndex = 27+stuffingLength+1;//i帧if(copyData[startIndex] == 0 && copyData[startIndex+1] == 0&&copyData[startIndex+2] == 01&&(copyData[startIndex+3]&0xff) == 0xbb ){packet = new Packet(seq,copyData,Packet.I);if(!mIsFirstI){mIsFirstI = true;}}//p帧else{if(!mIsFirstI){return;}packet = new Packet(seq,copyData,Packet.P);}mSeqMap.add(seq);}//音频数据else if( length > 18 &&  copyData[14] == 0 &&copyData[15] ==0 &&copyData[16] ==01 && (copyData[17]&0xff) == 0xc0){if(!mIsFirstI){return;}mSeqMap.add(seq);packet = new Packet(seq,copyData,Packet.AUDIO);}else {if(!mIsFirstI){return ;}packet = new Packet(seq,copyData,Packet.SUB_PACKET);}mPacketMap.put(seq, packet);if(mSeqMap.size() >= CACHE_FRAME_LENGTH){Integer firstSeq = mSeqMap.pop();Integer endSeq = mSeqMap.getFirst()-1;mParser.parseTcp(mPacketMap,firstSeq,endSeq,rtmpPusher);}}catch (Exception e){logger.error(e.getMessage(),e);logger.error("TCPHandler解析异常：[{}]", HexStringUtils.toHexString(copyData));}}
}

解析器

package com.fengyulei.fylsipserver.media.codec;import java.util.Map;import com.fengyulei.fylsipserver.media.common.utils.BitUtils;
import com.fengyulei.fylsipserver.media.common.utils.HexStringUtils;
import com.fengyulei.fylsipserver.media.push.RtmpPusher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;/*** rtp ps解析* 解析流程参考 https://blog.csdn.net/chen495810242/article/details/39207305* 代码基于github上的修改 https://github.com/yangjiechina/JGB28181*/
@Component
public  class CommonParser implements Parser{private Logger log = LoggerFactory.getLogger(getClass());//udp解析@Overridepublic void parseUdp(Map<Integer,Packet> packetMap,int firstSeq,int endSeq,RtmpPusher rtmpPusher) throws Exception{parse(packetMap,firstSeq,endSeq,rtmpPusher,rtmpPusher.getType());}//tcp解析@Overridepublic void parseTcp(Map<Integer,Packet> packetMap,int firstSeq,int endSeq,RtmpPusher rtmpPusher) throws Exception{parse(packetMap,firstSeq,endSeq,rtmpPusher,rtmpPusher.getType());}private void parse(Map<Integer,Packet> packetMap,int firstSeq,int endSeq,RtmpPusher rtmpPusher,String type) throws Exception{int remainEsLength = 0;int startIndex = 0;byte[] data=null;Packet packet=null;boolean isAudio=false;boolean flag=true;long pts=0L;int i=0;try {for(i = firstSeq; i<= endSeq;i++){packet = packetMap.remove(i);//根据序号取，为null时说明有丢包情况，选择丢弃退出if(packet == null){log.error("丢包");flag=false;break;}data = packet.getData();int packetType = packet.getPacketType();boolean hasSubPacket = true;int pesStartIndex = 0;//tcp头部比udp头部多两个字节，主要用于tcp分包if(packetType == Packet.I){if("UDP".equals(type)){pesStartIndex = getIFramePesStartIndex(data, UDP_PS_HEADER_STUFFING_LENGTH_INDEX);}else{pesStartIndex = getIFramePesStartIndex(data, TCP_PS_HEADER_STUFFING_LENGTH_INDEX);}hasSubPacket = false;}else if(packetType == Packet.P){if("UDP".equals(type)){pesStartIndex = getPFramePesStartIndex(data,UDP_PS_HEADER_STUFFING_LENGTH_INDEX);}else {pesStartIndex = getPFramePesStartIndex(data,TCP_PS_HEADER_STUFFING_LENGTH_INDEX);}hasSubPacket = false;}else if(packetType == Packet.AUDIO){if("UDP".equals(type)){pesStartIndex = UDP_START_INDEX;}else {pesStartIndex = TCP_START_INDEX;}hasSubPacket = false;}isAudio = (packetType == Packet.AUDIO);//统一计算 startIndexif(!hasSubPacket){pts = getPts(data, pesStartIndex);onPtsCallBack(pts,isAudio,rtmpPusher);//pes长度 前四个字节为pes头 00 00 00 e0 后面第5第6个字节代表长度int pesDataLength = BitUtils.byte2ToInt(data[pesStartIndex+4],data[pesStartIndex+5]);//pes头长度int pesHeaderDataLength = data[pesStartIndex+8] & 0xFF;//es起始索引startIndex = pesStartIndex+6+3+pesHeaderDataLength;remainEsLength = pesDataLength-3-pesHeaderDataLength;}else {if("UDP".equals(type)){startIndex = UDP_START_INDEX;}else {startIndex = TCP_START_INDEX;}}int packetLength= data.length;int dataLength  = packetLength - startIndex;//如果小于,整个包都是es数据if(dataLength <= remainEsLength){remainEsLength -= dataLength;onMediaStreamCallBack(data, startIndex, dataLength,isAudio,rtmpPusher);startIndex = 0;continue;}//大于则说明数据里面还包含es数据//先将上一个es包的数据写入通道//再解析下一个pesonMediaStreamCallBack(data, startIndex, remainEsLength,isAudio,rtmpPusher);startIndex+=remainEsLength;remainEsLength = 0;while(true){if(packetLength-startIndex<=8){//onMediaStreamCallBack(data, startIndex, packetLength-startIndex,isAudio,rtmpPusher);log.error("解析异常1:[{}],[{}]",rtmpPusher.getSsrc(),type);break;}//pes数据总长int newPesDataLength = BitUtils.byte2ToInt(data[startIndex + 4],data[startIndex+5]);//pes头长度int pesHeaderDataLength = data[startIndex+8] & 0xFF;//es长度remainEsLength = newPesDataLength - 3 - pesHeaderDataLength;startIndex+=8+pesHeaderDataLength+1;//大于等于说明剩下的包不包含es,跳出循环if(startIndex >= packetLength){break;}//数据包接收异常时会导致remainEsLength不准确if(remainEsLength<0){log.error("解析异常2:[{}],[{}]",rtmpPusher.getSsrc(),type);break;}//当前包剩余长度int packetRemainLength =  packetLength - startIndex;//小于等于，说明剩下的包全都是es的数据//写入通道，跳出循环if(packetRemainLength <= remainEsLength){onMediaStreamCallBack(data, startIndex, packetRemainLength,isAudio,rtmpPusher);//datas=byteMerger(datas,subBytes(data,startIndex,packetRemainLength));remainEsLength-= packetRemainLength;break;}//大于es长度，说明还有  pes//写入通道，继续循环onMediaStreamCallBack(data, startIndex, remainEsLength,isAudio,rtmpPusher);startIndex+=remainEsLength;}startIndex = 0;}if(!flag){//异常需要清理map，防止内存溢出for(i = i+1; i<= endSeq;i++){if(i>endSeq){break;}packetMap.remove(i);}}}catch (Exception e){log.error("startIndex:{}",startIndex);log.error("解包异常：{}",HexStringUtils.toHexString(data));log.error(e.getMessage(),e);//异常需要清理mapfor(i = i+1; i<= endSeq;i++){if(i>endSeq){break;}packetMap.remove(i);}}}/*** 计算获取i帧的pes start index* @param data* @param stuffingLengthIndex* @return*/private int getIFramePesStartIndex(byte[] data,int stuffingLengthIndex){//ps头中STUFFING长度，扩充扩展字段，直接跳过。int stuffingLength =  data[stuffingLengthIndex] & 7;//psSystem头开始索引int psSystemHeaderStartIndex =  stuffingLengthIndex+stuffingLength+1;int psSystemHeaderLength=0;if((data[psSystemHeaderStartIndex+3]&0xff)==0xbb){//psSystem头长度,00 00 00 bbpsSystemHeaderLength = BitUtils.byte2ToInt(data[psSystemHeaderStartIndex + 4],data[psSystemHeaderStartIndex+5]);}else{log.error("没有系统头");}int psMapHeaderStartIndex = psSystemHeaderStartIndex + 6 +psSystemHeaderLength;//psMap头长度,00 00 00 bcint psMapHeaderLength = BitUtils.byte2ToInt(data[psMapHeaderStartIndex+4],data[psMapHeaderStartIndex+5]);//pes开始索引，00 00 01 e0return psMapHeaderStartIndex+6+psMapHeaderLength;}/*** 计算获取p帧的pes start index* @param data* @param stuffingLengthIndex* @return*/private int getPFramePesStartIndex(byte[] data,int stuffingLengthIndex){//ps头中STUFFING长度直接跳过，扩充扩展字段。int stuffingLength =  data[stuffingLengthIndex] & 7;return stuffingLengthIndex+stuffingLength+1;}/*** 计算获取 pts* @param data 源数据* @param pesStartIndex pes头起始索引* @return*/private long getPts(byte[] data,int pesStartIndex){if(data != null && data.length >= pesStartIndex){try{//检查pes头中是否包含pts、dts//i帧中的pes头至少需要携带pts//pts_dts flagsbyte ptsDtsFlags =  (byte) ((data[pesStartIndex+7]&0xff) >> 6 & 0x3);//`11` pts、dts都有//`10` pts//00 都没有if(ptsDtsFlags == 0x3 || ptsDtsFlags==0x2){//pts[32-30]int bitHight32_30 = data[pesStartIndex+10]&0xff & 0xE;//pts[29-15]int bitHight29_15 = BitUtils.byte2ToInt(data[pesStartIndex+10],data[pesStartIndex+11])&0xFFFE;//pts[14-0]                     int bitHight14_0 = BitUtils.byte2ToInt(data[pesStartIndex+12],data[pesStartIndex+13])&0xFFFE;long pts = (long)(bitHight32_30 << 29) + (long)(bitHight29_15<<14) + (long)(bitHight14_0>>1);if(pts < 0){//System.out.println(HexStringUtils.toHexString(data));}//log.info("解析后的pts >>> {}",pts);return pts;}}catch(Exception e){e.printStackTrace();}}return -1;}private void onMediaStreamCallBack(byte[] data,int offset,int length,boolean isAudio,RtmpPusher rtmpPusher){if(rtmpPusher==null){return;}rtmpPusher.onMediaStream(data,offset,length,isAudio);}private void onPtsCallBack(long pts,boolean isAudio,RtmpPusher rtmpPusher){if(rtmpPusher==null){return;}rtmpPusher.onPts(pts,isAudio);}public static void main(String[] args) throws Exception{CommonParser commonParser=new CommonParser();String str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byte[] data= HexStringUtils.chars2Bytes(str.toCharArray());System.out.println("总共字节长度为："+data.length);int pesStartIndex = commonParser.getPFramePesStartIndex(data,UDP_PS_HEADER_STUFFING_LENGTH_INDEX);System.out.println((data[pesStartIndex+3]&0xff)==0xe0);//00 00 01 e0 --->0 0 1 224System.out.println("pes包头开始下标："+pesStartIndex+"--->"+HexStringUtils.byte2String(data[pesStartIndex])+HexStringUtils.byte2String(data[pesStartIndex+1])+HexStringUtils.byte2String(data[pesStartIndex+2])+HexStringUtils.byte2String(data[pesStartIndex+3]));//pes长度int pesDataLength = BitUtils.byte2ToInt(data[pesStartIndex+4],data[pesStartIndex+5]);System.out.println("pes长度："+pesDataLength);//pes头长度int pesHeaderDataLength = data[pesStartIndex+8] & 0xFF;System.out.println("头长度："+pesHeaderDataLength);//es起始索引 2 6int startIndex = pesStartIndex+6+3+pesHeaderDataLength;System.out.println("es起始索引："+startIndex);int remainEsLength = pesDataLength-3-pesHeaderDataLength;System.out.println("es数据长度："+remainEsLength);int packetLength= data.length;int dataLength  = packetLength - startIndex;//如果小于,整个包都是es数据if(dataLength <= remainEsLength){remainEsLength -= dataLength;//onMediaStreamCallBack(data, startIndex, dataLength,isAudio,rtmpPusher);startIndex = 0;return;//continue;}//大于则说明数据里面还包含es数据//先将上一个es包的数据写入通道//再解析下一个pes//onMediaStreamCallBack(data, startIndex, remainEsLength,isAudio,rtmpPusher);startIndex+=remainEsLength;remainEsLength = 0;while(true){//新的pes数据总长int newPesDataLength = BitUtils.byte2ToInt(data[startIndex + 4],data[startIndex+5]);//新的pes头长度pesHeaderDataLength = data[startIndex+8] & 0xFF;//es长度remainEsLength = newPesDataLength - 3 - pesHeaderDataLength;startIndex+=8+pesHeaderDataLength+1;//大于等于说明剩下的包不包含es,跳出循环if(startIndex >= packetLength){break;}//当前包剩余长度int packetRemainLength =  packetLength - startIndex;//小于等于，说明剩下的包全都是es的数据//写入通道，跳出循环if(packetRemainLength <= remainEsLength){//onMediaStreamCallBack(data, startIndex, packetRemainLength,isAudio,rtmpPusher);remainEsLength-= packetRemainLength;break;}//大于es长度，说明还有  pes//写入通道，继续循环//onMediaStreamCallBack(data, startIndex, remainEsLength,isAudio,rtmpPusher);startIndex+=remainEsLength;}startIndex = 0;}
}

推流器

加入javacv相关依赖

<!-- javacv 和 ffmpeg -->
<dependency><groupId>org.bytedeco</groupId><artifactId>javacv</artifactId><version>1.4.4</version>
</dependency>
<dependency><groupId>org.bytedeco</groupId><artifactId>javacpp</artifactId><version>1.4.4</version>
</dependency>
<dependency><groupId>org.bytedeco.javacpp-presets</groupId><artifactId>ffmpeg</artifactId><version>4.1-1.4.4</version>
</dependency>
<dependency><groupId>org.bytedeco.javacpp-presets</groupId><artifactId>ffmpeg-platform</artifactId><version>4.1-1.4.4</version>
</dependency>

CustomFFmpegFrameRecorder 覆盖原来的FFmpegFrameRecorder

package com.fengyulei.fylsipserver.media.push;import static org.bytedeco.javacpp.avcodec.AV_CODEC_CAP_EXPERIMENTAL;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_FLAG_GLOBAL_HEADER;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_FLAG_QSCALE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_AAC;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_FFV1;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_FLV1;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_H263;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_H264;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_HUFFYUV;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_JPEGLS;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_MJPEG;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_MJPEGB;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_MPEG1VIDEO;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_MPEG2VIDEO;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_MPEG4;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_NONE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_PCM_S16BE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_PCM_S16LE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_PCM_U16BE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_PCM_U16LE;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_PNG;
import static org.bytedeco.javacpp.avcodec.AV_CODEC_ID_RAWVIDEO;
import static org.bytedeco.javacpp.avcodec.AV_INPUT_BUFFER_MIN_SIZE;
import static org.bytedeco.javacpp.avcodec.AV_PKT_FLAG_KEY;
import static org.bytedeco.javacpp.avcodec.av_init_packet;
import static org.bytedeco.javacpp.avcodec.av_jni_set_java_vm;
import static org.bytedeco.javacpp.avcodec.av_packet_unref;
import static org.bytedeco.javacpp.avcodec.avcodec_alloc_context3;
import static org.bytedeco.javacpp.avcodec.avcodec_copy_context;
import static org.bytedeco.javacpp.avcodec.avcodec_encode_audio2;
import static org.bytedeco.javacpp.avcodec.avcodec_encode_video2;
import static org.bytedeco.javacpp.avcodec.avcodec_fill_audio_frame;
import static org.bytedeco.javacpp.avcodec.avcodec_find_encoder;
import static org.bytedeco.javacpp.avcodec.avcodec_find_encoder_by_name;
import static org.bytedeco.javacpp.avcodec.avcodec_free_context;
import static org.bytedeco.javacpp.avcodec.avcodec_open2;
import static org.bytedeco.javacpp.avcodec.avcodec_parameters_from_context;
import static org.bytedeco.javacpp.avcodec.avcodec_register_all;
import static org.bytedeco.javacpp.avdevice.avdevice_register_all;
import static org.bytedeco.javacpp.avformat.AVFMT_GLOBALHEADER;
import static org.bytedeco.javacpp.avformat.AVFMT_NOFILE;
import static org.bytedeco.javacpp.avformat.AVIO_FLAG_WRITE;
import static org.bytedeco.javacpp.avformat.av_dump_format;
import static org.bytedeco.javacpp.avformat.av_guess_format;
import static org.bytedeco.javacpp.avformat.av_interleaved_write_frame;
import static org.bytedeco.javacpp.avformat.av_register_all;
import static org.bytedeco.javacpp.avformat.av_write_frame;
import static org.bytedeco.javacpp.avformat.av_write_trailer;
import static org.bytedeco.javacpp.avformat.avformat_alloc_output_context2;
import static org.bytedeco.javacpp.avformat.avformat_network_init;
import static org.bytedeco.javacpp.avformat.avformat_new_stream;
import static org.bytedeco.javacpp.avformat.avformat_write_header;
import static org.bytedeco.javacpp.avformat.avio_alloc_context;
import static org.bytedeco.javacpp.avformat.avio_close;
import static org.bytedeco.javacpp.avformat.avio_open2;
import static org.bytedeco.javacpp.avutil.*;
import static org.bytedeco.javacpp.swresample.swr_alloc_set_opts;
import static org.bytedeco.javacpp.swresample.swr_convert;
import static org.bytedeco.javacpp.swresample.swr_free;
import static org.bytedeco.javacpp.swresample.swr_init;
import static org.bytedeco.javacpp.swscale.SWS_BILINEAR;
import static org.bytedeco.javacpp.swscale.sws_freeContext;
import static org.bytedeco.javacpp.swscale.sws_getCachedContext;
import static org.bytedeco.javacpp.swscale.sws_scale;import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.DoubleBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;import org.bytedeco.javacpp.BytePointer;
import org.bytedeco.javacpp.DoublePointer;
import org.bytedeco.javacpp.FloatPointer;
import org.bytedeco.javacpp.IntPointer;
import org.bytedeco.javacpp.Loader;
import org.bytedeco.javacpp.Pointer;
import org.bytedeco.javacpp.PointerPointer;
import org.bytedeco.javacpp.PointerScope;
import org.bytedeco.javacpp.ShortPointer;
import org.bytedeco.javacpp.avcodec.AVCodec;
import org.bytedeco.javacpp.avcodec.AVCodecContext;
import org.bytedeco.javacpp.avcodec.AVPacket;
import org.bytedeco.javacpp.avformat.AVFormatContext;
import org.bytedeco.javacpp.avformat.AVIOContext;
import org.bytedeco.javacpp.avformat.AVOutputFormat;
import org.bytedeco.javacpp.avformat.AVStream;
import org.bytedeco.javacpp.avformat.Write_packet_Pointer_BytePointer_int;
import org.bytedeco.javacpp.avutil.AVDictionary;
import org.bytedeco.javacpp.avutil.AVFrame;
import org.bytedeco.javacpp.avutil.AVRational;
import org.bytedeco.javacpp.swresample.SwrContext;
import org.bytedeco.javacpp.swscale.SwsContext;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.FFmpegLockCallback;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.FrameRecorder;@SuppressWarnings("all")
public class CustomFFmpegFrameRecorder extends FrameRecorder {public static CustomFFmpegFrameRecorder createDefault(File f, int w, int h)   throws Exception { return new CustomFFmpegFrameRecorder(f, w, h); }public static CustomFFmpegFrameRecorder createDefault(String f, int w, int h) throws Exception { return new CustomFFmpegFrameRecorder(f, w, h); }private static Exception loadingException = null;public static void tryLoad() throws Exception {if (loadingException != null) {throw loadingException;} else {try {Loader.load(org.bytedeco.javacpp.avutil.class);Loader.load(org.bytedeco.javacpp.swresample.class);Loader.load(org.bytedeco.javacpp.avcodec.class);Loader.load(org.bytedeco.javacpp.avformat.class);Loader.load(org.bytedeco.javacpp.swscale.class);/* initialize libavcodec, and register all codecs and formats */av_jni_set_java_vm(Loader.getJavaVM(), null);avcodec_register_all();av_register_all();avformat_network_init();Loader.load(org.bytedeco.javacpp.avdevice.class);avdevice_register_all();} catch (Throwable t) {if (t instanceof Exception) {throw loadingException = (Exception)t;} else {throw loadingException = new Exception("Failed to load " + FFmpegFrameRecorder.class, t);}}}}static {try {tryLoad();FFmpegLockCallback.init();} catch (Exception ex) { }}public CustomFFmpegFrameRecorder(File file, int audioChannels) {this(file, 0, 0, audioChannels);}public CustomFFmpegFrameRecorder(String filename, int audioChannels) {this(filename, 0, 0, audioChannels);}public CustomFFmpegFrameRecorder(File file, int imageWidth, int imageHeight) {this(file, imageWidth, imageHeight, 0);}public CustomFFmpegFrameRecorder(String filename, int imageWidth, int imageHeight) {this(filename, imageWidth, imageHeight, 0);}public CustomFFmpegFrameRecorder(File file, int imageWidth, int imageHeight, int audioChannels) {this(file.getAbsolutePath(), imageWidth, imageHeight, audioChannels);}public CustomFFmpegFrameRecorder(String filename, int imageWidth, int imageHeight, int audioChannels) {this.filename      = filename;this.imageWidth    = imageWidth;this.imageHeight   = imageHeight;this.audioChannels = audioChannels;this.pixelFormat   = AV_PIX_FMT_NONE;this.videoCodec    = AV_CODEC_ID_NONE;this.videoBitrate  = 400000;this.frameRate     = 30;this.sampleFormat  = AV_SAMPLE_FMT_NONE;this.audioCodec    = AV_CODEC_ID_NONE;this.audioBitrate  = 64000;this.sampleRate    = 44100;this.interleaved = true;this.video_pkt = new AVPacket();this.audio_pkt = new AVPacket();}public CustomFFmpegFrameRecorder(OutputStream outputStream, int audioChannels) {this(outputStream.toString(), audioChannels);this.outputStream = outputStream;}public CustomFFmpegFrameRecorder(OutputStream outputStream, int imageWidth, int imageHeight) {this(outputStream.toString(), imageWidth, imageHeight);this.outputStream = outputStream;}public CustomFFmpegFrameRecorder(OutputStream outputStream, int imageWidth, int imageHeight, int audioChannels) {this(outputStream.toString(), imageWidth, imageHeight, audioChannels);this.outputStream = outputStream;}public void release() throws Exception {// synchronized (org.bytedeco.javacpp.avcodec.class) {releaseUnsafe();// }}void releaseUnsafe() throws Exception {/* close each codec */if (video_c != null) {avcodec_free_context(video_c);video_c = null;}if (audio_c != null) {avcodec_free_context(audio_c);audio_c = null;}if (picture_buf != null) {av_free(picture_buf);picture_buf = null;}if (picture != null) {av_frame_free(picture);picture = null;}if (tmp_picture != null) {av_frame_free(tmp_picture);tmp_picture = null;}if (video_outbuf != null) {av_free(video_outbuf);video_outbuf = null;}if (frame != null) {av_frame_free(frame);frame = null;}if (samples_out != null) {for (int i = 0; i < samples_out.length; i++) {av_free(samples_out[i].position(0));}samples_out = null;}if (audio_outbuf != null) {av_free(audio_outbuf);audio_outbuf = null;}if (video_st != null && video_st.metadata() != null) {av_dict_free(video_st.metadata());video_st.metadata(null);}if (audio_st != null && audio_st.metadata() != null) {av_dict_free(audio_st.metadata());audio_st.metadata(null);}video_st = null;audio_st = null;filename = null;AVFormatContext outputStreamKey = oc;if (oc != null && !oc.isNull()) {if (outputStream == null && (oformat.flags() & AVFMT_NOFILE) == 0) {/* close the output file */avio_close(oc.pb());}/* free the streams */int nb_streams = oc.nb_streams();for(int i = 0; i < nb_streams; i++) {av_free(oc.streams(i).codec());av_free(oc.streams(i));}/* free metadata */if (oc.metadata() != null) {av_dict_free(oc.metadata());oc.metadata(null);}/* free the stream */av_free(oc);oc = null;}if (img_convert_ctx != null) {sws_freeContext(img_convert_ctx);img_convert_ctx = null;}if (samples_convert_ctx != null) {swr_free(samples_convert_ctx);samples_convert_ctx = null;}if (outputStream != null) {try {outputStream.close();} catch (IOException ex) {throw new Exception("Error on OutputStream.close(): ", ex);} finally {outputStream = null;outputStreams.remove(outputStreamKey);if (avio != null) {if (avio.buffer() != null) {av_free(avio.buffer());avio.buffer(null);}av_free(avio);avio = null;}}}}@Override protected void finalize() throws Throwable {super.finalize();release();}static Map<Pointer,OutputStream> outputStreams = Collections.synchronizedMap(new HashMap<Pointer,OutputStream>());static class WriteCallback extends Write_packet_Pointer_BytePointer_int {@Override public int call(Pointer opaque, BytePointer buf, int buf_size) {try {byte[] b = new byte[buf_size];OutputStream os = outputStreams.get(opaque);buf.get(b, 0, buf_size);os.write(b, 0, buf_size);return buf_size;}catch (Throwable t) {System.err.println("Error on OutputStream.write(): " + t);return -1;}}}static WriteCallback writeCallback = new WriteCallback();static {PointerScope s = PointerScope.getInnerScope();if (s != null) {s.detach(writeCallback);}}private OutputStream outputStream;private AVIOContext avio;private String filename;private AVFrame picture, tmp_picture;private BytePointer picture_buf;private BytePointer video_outbuf;private int video_outbuf_size;private AVFrame frame;private Pointer[] samples_in;private BytePointer[] samples_out;private PointerPointer samples_in_ptr;private PointerPointer samples_out_ptr;private BytePointer audio_outbuf;private int audio_outbuf_size;private int audio_input_frame_size;private AVOutputFormat oformat;private AVFormatContext oc;private AVCodec video_codec, audio_codec;private AVCodecContext video_c, audio_c;private AVStream video_st, audio_st;private SwsContext img_convert_ctx;private SwrContext samples_convert_ctx;private int samples_channels, samples_format, samples_rate;private AVPacket video_pkt, audio_pkt;private int[] got_video_packet, got_audio_packet;private AVFormatContext ifmt_ctx;@Override public int getFrameNumber() {return picture == null ? super.getFrameNumber() : (int)picture.pts();}@Override public void setFrameNumber(int frameNumber) {if (picture == null) { super.setFrameNumber(frameNumber); } else { picture.pts(frameNumber); }}// best guess for timestamp in microseconds...@Override public long getTimestamp() {return Math.round(getFrameNumber() * 1000000L / getFrameRate());}@Override public void setTimestamp(long timestamp)  {setFrameNumber((int)Math.round(timestamp * getFrameRate() / 1000000L));}public void start(AVFormatContext ifmt_ctx) throws Exception {this.ifmt_ctx = ifmt_ctx;start();}public void start() throws Exception {// synchronized (org.bytedeco.javacpp.avcodec.class) {startUnsafe();// }}void startUnsafe() throws Exception {int ret;picture = null;tmp_picture = null;picture_buf = null;frame = null;video_outbuf = null;audio_outbuf = null;oc = new AVFormatContext(null);video_c = null;audio_c = null;video_st = null;audio_st = null;got_video_packet = new int[1];got_audio_packet = new int[1];/* auto detect the output format from the name. */String format_name = format == null || format.length() == 0 ? null : format;if ((oformat = av_guess_format(format_name, filename, null)) == null) {int proto = filename.indexOf("://");if (proto > 0) {format_name = filename.substring(0, proto);}if ((oformat = av_guess_format(format_name, filename, null)) == null) {throw new Exception("av_guess_format() error: Could not guess output format for \"" + filename + "\" and " + format + " format.");}}format_name = oformat.name().getString();/* allocate the output media context */if (avformat_alloc_output_context2(oc, null, format_name, filename) < 0) {throw new Exception("avformat_alloc_context2() error:\tCould not allocate format context");}if (outputStream != null) {avio = avio_alloc_context(new BytePointer(av_malloc(4096)), 4096, 1, oc, null, writeCallback, null);oc.pb(avio);filename = outputStream.toString();outputStreams.put(oc, outputStream);}oc.oformat(oformat);oc.filename().putString(filename);oc.max_delay(maxDelay);/* add the audio and video streams using the format codecsand initialize the codecs */AVStream inpVideoStream = null, inpAudioStream = null;if (ifmt_ctx != null) {// get input video and audio stream indices from ifmt_ctxfor (int idx = 0; idx < ifmt_ctx.nb_streams(); idx++) {AVStream inputStream = ifmt_ctx.streams(idx);if (inputStream.codec().codec_type() == AVMEDIA_TYPE_VIDEO) {inpVideoStream = inputStream;videoCodec = inpVideoStream.codec().codec_id();if (inpVideoStream.r_frame_rate().num() != AV_NOPTS_VALUE && inpVideoStream.r_frame_rate().den() != 0) {frameRate = (inpVideoStream.r_frame_rate().num()) / (inpVideoStream.r_frame_rate().den());}} else if (inputStream.codec().codec_type() == AVMEDIA_TYPE_AUDIO) {inpAudioStream = inputStream;audioCodec = inpAudioStream.codec().codec_id();}}}if (imageWidth > 0 && imageHeight > 0) {if (videoCodec != AV_CODEC_ID_NONE) {oformat.video_codec(videoCodec);} else if ("flv".equals(format_name)) {oformat.video_codec(AV_CODEC_ID_FLV1);} else if ("mp4".equals(format_name)) {oformat.video_codec(AV_CODEC_ID_MPEG4);} else if ("3gp".equals(format_name)) {oformat.video_codec(AV_CODEC_ID_H263);} else if ("avi".equals(format_name)) {oformat.video_codec(AV_CODEC_ID_HUFFYUV);}/* find the video encoder */if ((video_codec = avcodec_find_encoder_by_name(videoCodecName)) == null &&(video_codec = avcodec_find_encoder(oformat.video_codec())) == null) {release();throw new Exception("avcodec_find_encoder() error: Video codec not found.");}oformat.video_codec(video_codec.id());AVRational frame_rate = av_d2q(frameRate, 1001000);AVRational supported_framerates = video_codec.supported_framerates();if (supported_framerates != null) {int idx = av_find_nearest_q_idx(frame_rate, supported_framerates);frame_rate = supported_framerates.position(idx);}/* add a video output stream */if ((video_st = avformat_new_stream(oc, null)) == null) {release();throw new Exception("avformat_new_stream() error: Could not allocate video stream.");}if ((video_c = avcodec_alloc_context3(video_codec)) == null) {release();throw new Exception("avcodec_alloc_context3() error: Could not allocate video encoding context.");}if (inpVideoStream != null) {if ((ret = avcodec_copy_context(video_st.codec(), inpVideoStream.codec())) < 0) {release();throw new Exception("avcodec_copy_context() error:\tFailed to copy context from input to output stream codec context");}videoBitrate = (int) inpVideoStream.codec().bit_rate();pixelFormat = inpVideoStream.codec().pix_fmt();aspectRatio = inpVideoStream.codec().sample_aspect_ratio().den() / inpVideoStream.codec().sample_aspect_ratio().den() * 1.d;videoQuality = inpVideoStream.codec().global_quality();video_c.codec_tag(0);}video_c.codec_id(oformat.video_codec());video_c.codec_type(AVMEDIA_TYPE_VIDEO);/* put sample parameters */video_c.bit_rate(videoBitrate);/* resolution must be a multiple of two. Scale height to maintain the aspect ratio. */if (imageWidth % 2 == 1) {int roundedWidth = imageWidth + 1;imageHeight = (roundedWidth * imageHeight + imageWidth / 2) / imageWidth;imageWidth = roundedWidth;}video_c.width(imageWidth);video_c.height(imageHeight);if (aspectRatio > 0) {AVRational r = av_d2q(aspectRatio, 255);video_c.sample_aspect_ratio(r);video_st.sample_aspect_ratio(r);}/* time base: this is the fundamental unit of time (in seconds) in termsof which frame timestamps are represented. for fixed-fps content,timebase should be 1/framerate and timestamp increments should beidentically 1. */AVRational time_base = av_inv_q(frame_rate);video_c.time_base(time_base);video_st.time_base(time_base);video_st.avg_frame_rate(frame_rate);video_st.codec().time_base(time_base); // "deprecated", but this is actually requiredif (gopSize >= 0) {video_c.gop_size(gopSize); /* emit one intra frame every gopSize frames at most */}if (videoQuality >= 0) {video_c.flags(video_c.flags() | AV_CODEC_FLAG_QSCALE);video_c.global_quality((int)Math.round(FF_QP2LAMBDA * videoQuality));}if (pixelFormat != AV_PIX_FMT_NONE) {video_c.pix_fmt(pixelFormat);} else if (video_c.codec_id() == AV_CODEC_ID_RAWVIDEO || video_c.codec_id() == AV_CODEC_ID_PNG ||video_c.codec_id() == AV_CODEC_ID_HUFFYUV  || video_c.codec_id() == AV_CODEC_ID_FFV1) {video_c.pix_fmt(AV_PIX_FMT_RGB32);   // appropriate for common lossless formats} else if (video_c.codec_id() == AV_CODEC_ID_JPEGLS) {video_c.pix_fmt(AV_PIX_FMT_BGR24);} else if (video_c.codec_id() == AV_CODEC_ID_MJPEG || video_c.codec_id() == AV_CODEC_ID_MJPEGB) {video_c.pix_fmt(AV_PIX_FMT_YUVJ420P);} else {video_c.pix_fmt(AV_PIX_FMT_YUV420P); // lossy, but works with about everything}if (video_c.codec_id() == AV_CODEC_ID_MPEG2VIDEO) {/* just for testing, we also add B frames */video_c.max_b_frames(2);} else if (video_c.codec_id() == AV_CODEC_ID_MPEG1VIDEO) {/* Needed to avoid using macroblocks in which some coeffs overflow.This does not happen with normal video, it just happens here asthe motion of the chroma plane does not match the luma plane. */video_c.mb_decision(2);} else if (video_c.codec_id() == AV_CODEC_ID_H263) {// H.263 does not support any other resolution than the followingif (imageWidth <= 128 && imageHeight <= 96) {video_c.width(128).height(96);} else if (imageWidth <= 176 && imageHeight <= 144) {video_c.width(176).height(144);} else if (imageWidth <= 352 && imageHeight <= 288) {video_c.width(352).height(288);} else if (imageWidth <= 704 && imageHeight <= 576) {video_c.width(704).height(576);} else {video_c.width(1408).height(1152);}} else if (video_c.codec_id() == AV_CODEC_ID_H264) {// default to constrained baseline to produce content that plays back on anything,// without any significant tradeoffs for most use casesvideo_c.profile(AVCodecContext.FF_PROFILE_H264_CONSTRAINED_BASELINE);}// some formats want stream headers to be separateif ((oformat.flags() & AVFMT_GLOBALHEADER) != 0) {video_c.flags(video_c.flags() | AV_CODEC_FLAG_GLOBAL_HEADER);}if ((video_codec.capabilities() & AV_CODEC_CAP_EXPERIMENTAL) != 0) {video_c.strict_std_compliance(AVCodecContext.FF_COMPLIANCE_EXPERIMENTAL);}if (maxBFrames >= 0) {video_c.max_b_frames(maxBFrames);video_c.has_b_frames(maxBFrames == 0 ? 0 : 1);}if (trellis >= 0) {video_c.trellis(trellis);}}/** add an audio output stream*/if (audioChannels > 0 && audioBitrate > 0 && sampleRate > 0) {if (audioCodec != AV_CODEC_ID_NONE) {oformat.audio_codec(audioCodec);} else if ("flv".equals(format_name) || "mp4".equals(format_name) || "3gp".equals(format_name)) {oformat.audio_codec(AV_CODEC_ID_AAC);} else if ("avi".equals(format_name)) {oformat.audio_codec(AV_CODEC_ID_PCM_S16LE);}/* find the audio encoder */if ((audio_codec = avcodec_find_encoder_by_name(audioCodecName)) == null &&(audio_codec = avcodec_find_encoder(oformat.audio_codec())) == null) {release();throw new Exception("avcodec_find_encoder() error: Audio codec not found.");}oformat.audio_codec(audio_codec.id());if ((audio_st = avformat_new_stream(oc, null)) == null) {release();throw new Exception("avformat_new_stream() error: Could not allocate audio stream.");}if ((audio_c = avcodec_alloc_context3(audio_codec)) == null) {release();throw new Exception("avcodec_alloc_context3() error: Could not allocate audio encoding context.");}if(inpAudioStream != null && audioChannels > 0){if ((ret = avcodec_copy_context(audio_st.codec(), inpAudioStream.codec()))  < 0) {throw new Exception("avcodec_copy_context() error:\tFailed to copy context from input audio to output audio stream codec context\n");}audioBitrate = (int) inpAudioStream.codec().bit_rate();sampleRate = inpAudioStream.codec().sample_rate();audioChannels = inpAudioStream.codec().channels();sampleFormat = inpAudioStream.codec().sample_fmt();audioQuality = inpAudioStream.codec().global_quality();audio_c.codec_tag(0);//                audio_st.pts(inpAudioStream.pts());audio_st.duration(inpAudioStream.duration());audio_st.time_base().num(inpAudioStream.time_base().num());audio_st.time_base().den(inpAudioStream.time_base().den());}audio_c.codec_id(oformat.audio_codec());audio_c.codec_type(AVMEDIA_TYPE_AUDIO);/* put sample parameters */audio_c.bit_rate(audioBitrate);audio_c.sample_rate(sampleRate);audio_c.channels(audioChannels);audio_c.channel_layout(av_get_default_channel_layout(audioChannels));if (sampleFormat != AV_SAMPLE_FMT_NONE) {audio_c.sample_fmt(sampleFormat);} else {// use AV_SAMPLE_FMT_S16 by default, if availableaudio_c.sample_fmt(AV_SAMPLE_FMT_FLTP);IntPointer formats = audio_c.codec().sample_fmts();for (int i = 0; formats.get(i) != -1; i++) {if (formats.get(i) == AV_SAMPLE_FMT_S16) {audio_c.sample_fmt(AV_SAMPLE_FMT_S16);break;}}}audio_c.time_base().num(1).den(sampleRate);audio_st.time_base().num(1).den(sampleRate);switch (audio_c.sample_fmt()) {case AV_SAMPLE_FMT_U8:case AV_SAMPLE_FMT_U8P:  audio_c.bits_per_raw_sample(8);  break;case AV_SAMPLE_FMT_S16:case AV_SAMPLE_FMT_S16P: audio_c.bits_per_raw_sample(16); break;case AV_SAMPLE_FMT_S32:case AV_SAMPLE_FMT_S32P: audio_c.bits_per_raw_sample(32); break;case AV_SAMPLE_FMT_FLT:case AV_SAMPLE_FMT_FLTP: audio_c.bits_per_raw_sample(32); break;case AV_SAMPLE_FMT_DBL:case AV_SAMPLE_FMT_DBLP: audio_c.bits_per_raw_sample(64); break;default: assert false;}if (audioQuality >= 0) {audio_c.flags(audio_c.flags() | AV_CODEC_FLAG_QSCALE);audio_c.global_quality((int)Math.round(FF_QP2LAMBDA * audioQuality));}// some formats want stream headers to be separateif ((oformat.flags() & AVFMT_GLOBALHEADER) != 0) {audio_c.flags(audio_c.flags() | AV_CODEC_FLAG_GLOBAL_HEADER);}if ((audio_codec.capabilities() & AV_CODEC_CAP_EXPERIMENTAL) != 0) {audio_c.strict_std_compliance(AVCodecContext.FF_COMPLIANCE_EXPERIMENTAL);}}/* now that all the parameters are set, we can open the audio andvideo codecs and allocate the necessary encode buffers */if (video_st != null && inpVideoStream == null) {AVDictionary options = new AVDictionary(null);if (videoQuality >= 0) {av_dict_set(options, "crf", "" + videoQuality, 0);}for (Entry<String, String> e : videoOptions.entrySet()) {av_dict_set(options, e.getKey(), e.getValue(), 0);}/* open the codec */if ((ret = avcodec_open2(video_c, video_codec, options)) < 0) {release();av_dict_free(options);throw new Exception("avcodec_open2() error " + ret + ": Could not open video codec.");}av_dict_free(options);video_outbuf = null;//            if ((oformat.flags() & AVFMT_RAWPICTURE) == 0) {//                /* allocate output buffer *///                /* XXX: API change will be done *///                /* buffers passed into lav* can be allocated any way you prefer,//                   as long as they're aligned enough for the architecture, and//                   they're freed appropriately (such as using av_free for buffers//                   allocated with av_malloc) *///                video_outbuf_size = Math.max(256 * 1024, 8 * video_c.width() * video_c.height()); // a la ffmpeg.c//                video_outbuf = new BytePointer(av_malloc(video_outbuf_size));//            }/* allocate the encoded raw picture */if ((picture = av_frame_alloc()) == null) {release();throw new Exception("av_frame_alloc() error: Could not allocate picture.");}picture.pts(0); // magic required by libx264int size = av_image_get_buffer_size(video_c.pix_fmt(), video_c.width(), video_c.height(), 1);if ((picture_buf = new BytePointer(av_malloc(size))).isNull()) {release();throw new Exception("av_malloc() error: Could not allocate picture buffer.");}/* if the output format is not equal to the image format, then a temporarypicture is needed too. It is then converted to the required output format */if ((tmp_picture = av_frame_alloc()) == null) {release();throw new Exception("av_frame_alloc() error: Could not allocate temporary picture.");}/* copy the stream parameters to the muxer */if ((ret = avcodec_parameters_from_context(video_st.codecpar(), video_c)) < 0) {release();throw new Exception("avcodec_parameters_from_context() error: Could not copy the video stream parameters.");}AVDictionary metadata = new AVDictionary(null);for (Entry<String, String> e : videoMetadata.entrySet()) {av_dict_set(metadata, e.getKey(), e.getValue(), 0);}video_st.metadata(metadata);}if (audio_st != null && inpAudioStream == null) {AVDictionary options = new AVDictionary(null);if (audioQuality >= 0) {av_dict_set(options, "crf", "" + audioQuality, 0);}for (Entry<String, String> e : audioOptions.entrySet()) {av_dict_set(options, e.getKey(), e.getValue(), 0);}/* open the codec */if ((ret = avcodec_open2(audio_c, audio_codec, options)) < 0) {release();av_dict_free(options);throw new Exception("avcodec_open2() error " + ret + ": Could not open audio codec.");}av_dict_free(options);audio_outbuf_size = 256 * 1024;audio_outbuf = new BytePointer(av_malloc(audio_outbuf_size));/* ugly hack for PCM codecs (will be removed ASAP with new PCMsupport to compute the input frame size in samples */if (audio_c.frame_size() <= 1) {audio_outbuf_size = AV_INPUT_BUFFER_MIN_SIZE;audio_input_frame_size = audio_outbuf_size / audio_c.channels();switch (audio_c.codec_id()) {case AV_CODEC_ID_PCM_S16LE:case AV_CODEC_ID_PCM_S16BE:case AV_CODEC_ID_PCM_U16LE:case AV_CODEC_ID_PCM_U16BE:audio_input_frame_size >>= 1;break;default:break;}} else {audio_input_frame_size = audio_c.frame_size();}//int bufferSize = audio_input_frame_size * audio_c.bits_per_raw_sample()/8 * audio_c.channels();int planes = av_sample_fmt_is_planar(audio_c.sample_fmt()) != 0 ? (int)audio_c.channels() : 1;int data_size = av_samples_get_buffer_size((IntPointer)null, audio_c.channels(),audio_input_frame_size, audio_c.sample_fmt(), 1) / planes;samples_out = new BytePointer[planes];for (int i = 0; i < samples_out.length; i++) {samples_out[i] = new BytePointer(av_malloc(data_size)).capacity(data_size);}samples_in = new Pointer[AVFrame.AV_NUM_DATA_POINTERS];samples_in_ptr  = new PointerPointer(AVFrame.AV_NUM_DATA_POINTERS);samples_out_ptr = new PointerPointer(AVFrame.AV_NUM_DATA_POINTERS);/* allocate the audio frame */if ((frame = av_frame_alloc()) == null) {release();throw new Exception("av_frame_alloc() error: Could not allocate audio frame.");}frame.pts(0); // magic required by libvorbis and webm/* copy the stream parameters to the muxer */if ((ret = avcodec_parameters_from_context(audio_st.codecpar(), audio_c)) < 0) {release();throw new Exception("avcodec_parameters_from_context() error: Could not copy the audio stream parameters.");}AVDictionary metadata = new AVDictionary(null);for (Entry<String, String> e : audioMetadata.entrySet()) {av_dict_set(metadata, e.getKey(), e.getValue(), 0);}audio_st.metadata(metadata);}AVDictionary options = new AVDictionary(null);for (Entry<String, String> e : this.options.entrySet()) {av_dict_set(options, e.getKey(), e.getValue(), 0);}/* open the output file, if needed */if (outputStream == null && (oformat.flags() & AVFMT_NOFILE) == 0) {AVIOContext pb = new AVIOContext(null);if ((ret = avio_open2(pb, filename, AVIO_FLAG_WRITE, null, options)) < 0) {release();av_dict_free(options);throw new Exception("avio_open2 error() error " + ret + ": Could not open '" + filename + "'");}oc.pb(pb);}AVDictionary metadata = new AVDictionary(null);for (Entry<String, String> e : this.metadata.entrySet()) {av_dict_set(metadata, e.getKey(), e.getValue(), 0);}/* write the stream header, if any */avformat_write_header(oc.metadata(metadata), options);av_dict_free(options);if (av_log_get_level() >= AV_LOG_INFO) {av_dump_format(oc, 0, filename, 1);}}public void stop() throws Exception {if (oc != null) {try {synchronized (oc) {/* flush all the buffers */while (video_st != null && ifmt_ctx == null && recordImage(0, 0, 0, 0, 0, AV_PIX_FMT_NONE, (Buffer[])null));while (audio_st != null && ifmt_ctx == null && recordSamples(0, 0, (Buffer[])null));if (interleaved && video_st != null && audio_st != null) {av_interleaved_write_frame(oc, null);} else {av_write_frame(oc, null);}/* write the trailer, if any */av_write_trailer(oc);}} finally {release();}}}@Override public void record(Frame frame) throws Exception {record(frame, AV_PIX_FMT_NONE);}public void record(Frame frame, int pixelFormat) throws Exception {if (frame == null || (frame.image == null && frame.samples == null)) {recordImage(0, 0, 0, 0, 0, pixelFormat, (Buffer[])null);} else {if (frame.image != null) {frame.keyFrame = recordImage(frame.imageWidth, frame.imageHeight, frame.imageDepth,frame.imageChannels, frame.imageStride, pixelFormat, frame.image);}if (frame.samples != null) {frame.keyFrame = recordSamples(frame.sampleRate, frame.audioChannels, frame.samples);}}}public boolean recordImage(int width, int height, int depth, int channels, int stride, int pixelFormat, Buffer ... image) throws Exception {if (video_st == null) {throw new Exception("No video output stream (Is imageWidth > 0 && imageHeight > 0 and has start() been called?)");}int ret;if (image == null || image.length == 0) {/* no more frame to compress. The codec has a latency of a fewframes if using B frames, so we get the last frames bypassing the same picture again */} else {int step = stride * Math.abs(depth) / 8;BytePointer data = image[0] instanceof ByteBuffer? new BytePointer((ByteBuffer)image[0].position(0)): new BytePointer(new Pointer(image[0].position(0)));if (pixelFormat == AV_PIX_FMT_NONE) {if ((depth == Frame.DEPTH_UBYTE || depth == Frame.DEPTH_BYTE) && channels == 3) {pixelFormat = AV_PIX_FMT_BGR24;} else if ((depth == Frame.DEPTH_UBYTE || depth == Frame.DEPTH_BYTE) && channels == 1) {pixelFormat = AV_PIX_FMT_GRAY8;} else if ((depth == Frame.DEPTH_USHORT || depth == Frame.DEPTH_SHORT) && channels == 1) {pixelFormat = ByteOrder.nativeOrder().equals(ByteOrder.BIG_ENDIAN) ?AV_PIX_FMT_GRAY16BE : AV_PIX_FMT_GRAY16LE;} else if ((depth == Frame.DEPTH_UBYTE || depth == Frame.DEPTH_BYTE) && channels == 4) {pixelFormat = AV_PIX_FMT_RGBA;} else if ((depth == Frame.DEPTH_UBYTE || depth == Frame.DEPTH_BYTE) && channels == 2) {pixelFormat = AV_PIX_FMT_NV21; // Android's camera capture format} else {throw new Exception("Could not guess pixel format of image: depth=" + depth + ", channels=" + channels);}}if (pixelFormat == AV_PIX_FMT_NV21) {step = width;}if (video_c.pix_fmt() != pixelFormat || video_c.width() != width || video_c.height() != height) {/* convert to the codec pixel format if needed */img_convert_ctx = sws_getCachedContext(img_convert_ctx, width, height, pixelFormat,video_c.width(), video_c.height(), video_c.pix_fmt(),imageScalingFlags != 0 ? imageScalingFlags : SWS_BILINEAR,null, null, (DoublePointer)null);if (img_convert_ctx == null) {throw new Exception("sws_getCachedContext() error: Cannot initialize the conversion context.");}av_image_fill_arrays(new PointerPointer(tmp_picture), tmp_picture.linesize(), data, pixelFormat, width, height, 1);av_image_fill_arrays(new PointerPointer(picture), picture.linesize(), picture_buf, video_c.pix_fmt(), video_c.width(), video_c.height(), 1);tmp_picture.linesize(0, step);tmp_picture.format(pixelFormat);tmp_picture.width(width);tmp_picture.height(height);picture.format(video_c.pix_fmt());picture.width(video_c.width());picture.height(video_c.height());sws_scale(img_convert_ctx, new PointerPointer(tmp_picture), tmp_picture.linesize(),0, height, new PointerPointer(picture), picture.linesize());} else {av_image_fill_arrays(new PointerPointer(picture), picture.linesize(), data, pixelFormat, width, height, 1);picture.linesize(0, step);picture.format(pixelFormat);picture.width(width);picture.height(height);}}//        if ((oformat.flags() & AVFMT_RAWPICTURE) != 0) {//            if (image == null || image.length == 0) {//                return false;//            }//            /* raw video case. The API may change slightly in the future for that? *///            av_init_packet(video_pkt);//            video_pkt.flags(video_pkt.flags() | AV_PKT_FLAG_KEY);//            video_pkt.stream_index(video_st.index());//            video_pkt.data(new BytePointer(picture));//            video_pkt.size(Loader.sizeof(AVFrame.class));//        } else {/* encode the image */av_init_packet(video_pkt);video_pkt.data(video_outbuf);video_pkt.size(video_outbuf_size);picture.quality(video_c.global_quality());if ((ret = avcodec_encode_video2(video_c, video_pkt, image == null || image.length == 0 ? null : picture, got_video_packet)) < 0) {throw new Exception("avcodec_encode_video2() error " + ret + ": Could not encode video packet.");}picture.pts(picture.pts() + 1); // magic required by libx264/* if zero size, it means the image was buffered */if (got_video_packet[0] != 0) {if (video_pkt.pts() != AV_NOPTS_VALUE) {video_pkt.pts(av_rescale_q(video_pkt.pts(), video_c.time_base(), video_st.time_base()));}if (video_pkt.dts() != AV_NOPTS_VALUE) {video_pkt.dts(av_rescale_q(video_pkt.dts(), video_c.time_base(), video_st.time_base()));}video_pkt.stream_index(video_st.index());} else {return false;}//        }writePacket(AVMEDIA_TYPE_VIDEO, video_pkt);return image != null ? (video_pkt.flags() & AV_PKT_FLAG_KEY) != 0 : got_video_packet[0] != 0;}public boolean recordSamples(Buffer ... samples) throws Exception {return recordSamples(0, 0, samples);}public boolean recordSamples(int sampleRate, int audioChannels, Buffer ... samples) throws Exception {if (audio_st == null) {throw new Exception("No audio output stream (Is audioChannels > 0 and has start() been called?)");}if (samples == null && samples_out[0].position() > 0) {// Typically samples_out[0].limit() is double the audio_input_frame_size --> sampleDivisor = 2double sampleDivisor = Math.floor((int)Math.min(samples_out[0].limit(), Integer.MAX_VALUE) / audio_input_frame_size);writeSamples((int)Math.floor((int)samples_out[0].position() / sampleDivisor));return record((AVFrame)null);}int ret;if (sampleRate <= 0) {sampleRate = audio_c.sample_rate();}if (audioChannels <= 0) {audioChannels = audio_c.channels();}int inputSize = samples != null ? samples[0].limit() - samples[0].position() : 0;int inputFormat = samples_format;int inputChannels = samples != null && samples.length > 1 ? 1 : audioChannels;int inputDepth = 0;int outputFormat = audio_c.sample_fmt();int outputChannels = samples_out.length > 1 ? 1 : audio_c.channels();int outputDepth = av_get_bytes_per_sample(outputFormat);if (samples != null && samples[0] instanceof ByteBuffer) {inputFormat = samples.length > 1 ? AV_SAMPLE_FMT_U8P : AV_SAMPLE_FMT_U8;inputDepth = 1;for (int i = 0; i < samples.length; i++) {ByteBuffer b = (ByteBuffer)samples[i];if (samples_in[i] instanceof BytePointer && samples_in[i].capacity() >= inputSize && b.hasArray()) {((BytePointer)samples_in[i]).position(0).put(b.array(), b.position(), inputSize);} else {samples_in[i] = new BytePointer(b);}}} else if (samples != null && samples[0] instanceof ShortBuffer) {inputFormat = samples.length > 1 ? AV_SAMPLE_FMT_S16P : AV_SAMPLE_FMT_S16;inputDepth = 2;for (int i = 0; i < samples.length; i++) {ShortBuffer b = (ShortBuffer)samples[i];if (samples_in[i] instanceof ShortPointer && samples_in[i].capacity() >= inputSize && b.hasArray()) {((ShortPointer)samples_in[i]).position(0).put(b.array(), samples[i].position(), inputSize);} else {samples_in[i] = new ShortPointer(b);}}} else if (samples != null && samples[0] instanceof IntBuffer) {inputFormat = samples.length > 1 ? AV_SAMPLE_FMT_S32P : AV_SAMPLE_FMT_S32;inputDepth = 4;for (int i = 0; i < samples.length; i++) {IntBuffer b = (IntBuffer)samples[i];if (samples_in[i] instanceof IntPointer && samples_in[i].capacity() >= inputSize && b.hasArray()) {((IntPointer)samples_in[i]).position(0).put(b.array(), samples[i].position(), inputSize);} else {samples_in[i] = new IntPointer(b);}}} else if (samples != null && samples[0] instanceof FloatBuffer) {inputFormat = samples.length > 1 ? AV_SAMPLE_FMT_FLTP : AV_SAMPLE_FMT_FLT;inputDepth = 4;for (int i = 0; i < samples.length; i++) {FloatBuffer b = (FloatBuffer)samples[i];if (samples_in[i] instanceof FloatPointer && samples_in[i].capacity() >= inputSize && b.hasArray()) {((FloatPointer)samples_in[i]).position(0).put(b.array(), b.position(), inputSize);} else {samples_in[i] = new FloatPointer(b);}}} else if (samples != null && samples[0] instanceof DoubleBuffer) {inputFormat = samples.length > 1 ? AV_SAMPLE_FMT_DBLP : AV_SAMPLE_FMT_DBL;inputDepth = 8;for (int i = 0; i < samples.length; i++) {DoubleBuffer b = (DoubleBuffer)samples[i];if (samples_in[i] instanceof DoublePointer && samples_in[i].capacity() >= inputSize && b.hasArray()) {((DoublePointer)samples_in[i]).position(0).put(b.array(), b.position(), inputSize);} else {samples_in[i] = new DoublePointer(b);}}} else if (samples != null) {throw new Exception("Audio samples Buffer has unsupported type: " + samples);}if (samples_convert_ctx == null || samples_channels != audioChannels || samples_format != inputFormat || samples_rate != sampleRate) {samples_convert_ctx = swr_alloc_set_opts(samples_convert_ctx, audio_c.channel_layout(), outputFormat, audio_c.sample_rate(),av_get_default_channel_layout(audioChannels), inputFormat, sampleRate, 0, null);if (samples_convert_ctx == null) {throw new Exception("swr_alloc_set_opts() error: Cannot allocate the conversion context.");} else if ((ret = swr_init(samples_convert_ctx)) < 0) {throw new Exception("swr_init() error " + ret + ": Cannot initialize the conversion context.");}samples_channels = audioChannels;samples_format = inputFormat;samples_rate = sampleRate;}for (int i = 0; samples != null && i < samples.length; i++) {samples_in[i].position(samples_in[i].position() * inputDepth).limit((samples_in[i].position() + inputSize) * inputDepth);}while (true) {int inputCount = (int)Math.min(samples != null ? (samples_in[0].limit() - samples_in[0].position()) / (inputChannels * inputDepth) : 0, Integer.MAX_VALUE);int outputCount = (int)Math.min((samples_out[0].limit() - samples_out[0].position()) / (outputChannels * outputDepth), Integer.MAX_VALUE);inputCount = Math.min(inputCount, (outputCount * sampleRate + audio_c.sample_rate() - 1) / audio_c.sample_rate());for (int i = 0; samples != null && i < samples.length; i++) {samples_in_ptr.put(i, samples_in[i]);}for (int i = 0; i < samples_out.length; i++) {samples_out_ptr.put(i, samples_out[i]);}if ((ret = swr_convert(samples_convert_ctx, samples_out_ptr, outputCount, samples_in_ptr, inputCount)) < 0) {throw new Exception("swr_convert() error " + ret + ": Cannot convert audio samples.");} else if (ret == 0) {break;}for (int i = 0; samples != null && i < samples.length; i++) {samples_in[i].position(samples_in[i].position() + inputCount * inputChannels * inputDepth);}for (int i = 0; i < samples_out.length; i++) {samples_out[i].position(samples_out[i].position() + ret * outputChannels * outputDepth);}if (samples == null || samples_out[0].position() >= samples_out[0].limit()) {writeSamples(audio_input_frame_size);}}return samples != null ? frame.key_frame() != 0 : record((AVFrame)null);}private void writeSamples(int nb_samples) throws Exception {if (samples_out == null || samples_out.length == 0) {return;}frame.nb_samples(nb_samples);avcodec_fill_audio_frame(frame, audio_c.channels(), audio_c.sample_fmt(), samples_out[0], (int)samples_out[0].position(), 0);for (int i = 0; i < samples_out.length; i++) {int linesize = 0;if (samples_out[0].position() > 0 && samples_out[0].position() < samples_out[0].limit()) {linesize = (int)samples_out[i].position();} else {linesize = (int)Math.min(samples_out[i].limit(), Integer.MAX_VALUE);}frame.data(i, samples_out[i].position(0));frame.linesize(i, linesize);}frame.quality(audio_c.global_quality());record(frame);}boolean record(AVFrame frame) throws Exception {int ret;av_init_packet(audio_pkt);audio_pkt.data(audio_outbuf);audio_pkt.size(audio_outbuf_size);if ((ret = avcodec_encode_audio2(audio_c, audio_pkt, frame, got_audio_packet)) < 0) {throw new Exception("avcodec_encode_audio2() error " + ret + ": Could not encode audio packet.");}if (frame != null) {frame.pts(frame.pts() + frame.nb_samples()); // magic required by libvorbis and webm}if (got_audio_packet[0] != 0) {if (audio_pkt.pts() != AV_NOPTS_VALUE) {audio_pkt.pts(av_rescale_q(audio_pkt.pts(), audio_c.time_base(), audio_st.time_base()));}if (audio_pkt.dts() != AV_NOPTS_VALUE) {audio_pkt.dts(av_rescale_q(audio_pkt.dts(), audio_c.time_base(), audio_st.time_base()));}audio_pkt.flags(audio_pkt.flags() | AV_PKT_FLAG_KEY);audio_pkt.stream_index(audio_st.index());} else {return false;}/* write the compressed frame in the media file */writePacket(AVMEDIA_TYPE_AUDIO, audio_pkt);return true;}private void writePacket(int mediaType, AVPacket avPacket) throws Exception {AVStream avStream = (mediaType == AVMEDIA_TYPE_VIDEO) ? audio_st : (mediaType == AVMEDIA_TYPE_AUDIO) ? video_st : null;String mediaTypeStr = (mediaType == AVMEDIA_TYPE_VIDEO) ? "video" : (mediaType == AVMEDIA_TYPE_AUDIO) ? "audio" : "unsupported media stream type";synchronized (oc) {int ret;if (interleaved && avStream != null) {if ((ret = av_interleaved_write_frame(oc, avPacket)) < 0) {throw new Exception("av_interleaved_write_frame() error " + ret + " while writing interleaved " + mediaTypeStr + " packet.");}} else {if ((ret = av_write_frame(oc, avPacket)) < 0) {throw new Exception("av_write_frame() error " + ret + " while writing " + mediaTypeStr + " packet.");}}}}public boolean recordPacket(AVPacket pkt,long pts,long dts) throws Exception {try {if (pkt == null) {return false;}AVStream in_stream = ifmt_ctx.streams(pkt.stream_index());/*** Repair the problem of error decoding and playback caused by the absence of dts/pts* in the output audio/video file or audio/video stream,* Comment out this line of code so that PTS / DTS can specify the timestamp manually.*///        pkt.dts(AV_NOPTS_VALUE);//        pkt.pts(AV_NOPTS_VALUE);pkt.pos(-1);if (in_stream.codec().codec_type() == AVMEDIA_TYPE_VIDEO && video_st != null) {pkt.stream_index(video_st.index());pkt.duration((int) av_rescale_q(pkt.duration(), in_stream.codec().time_base(), video_st.codec().time_base()));
//          pkt.dts(av_rescale_q_rnd(pkt.dts(), in_stream.time_base(), video_st.time_base(),(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX)));//Increase dts calculationpkt.pts(pts);pkt.dts(pts);writePacket(AVMEDIA_TYPE_VIDEO, pkt);} else if (in_stream.codec().codec_type() == AVMEDIA_TYPE_AUDIO && audio_st != null && (audioChannels > 0)) {pkt.stream_index(audio_st.index());pkt.duration((int) av_rescale_q(pkt.duration(), in_stream.codec().time_base(), audio_st.codec().time_base()));pkt.pts(av_rescale_q_rnd(pkt.pts(), in_stream.time_base(), audio_st.time_base(),(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX)));//Increase pts calculationpkt.dts(av_rescale_q_rnd(pkt.dts(), in_stream.time_base(), audio_st.time_base(),(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX)));//Increase dts calculationwritePacket(AVMEDIA_TYPE_AUDIO, pkt);}return true;}finally {av_packet_unref(pkt);//av_freep(pkt);}}
}

推流处理类 RtmpPusher

import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.concurrent.ConcurrentLinkedDeque;import com.fengyulei.fylsipserver.media.netty.*;
import org.bytedeco.javacpp.avcodec;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;public class RtmpPusher implements Runnable{private Logger log = LoggerFactory.getLogger(getClass());//输入管道private PipedInputStream pis;//输出管道private PipedOutputStream pos = new PipedOutputStream();public boolean mRunning = true;private String address;//rtp ps 流唯一标识 端口复用情况下需要使用private String ssrc;//接收流得方式 tcp或udpprivate String type;public String getType() {return type;}public String getSsrc() {return ssrc;}//最后一次ptsprivate long mLastPts;private boolean mIs90000TimeBase = false;//最新流处理时间private volatile Long readTime=0L;//保存当前退流线程private Thread thread;//拉流器private FFmpegFrameGrabber grabber = null;//推流器private CustomFFmpegFrameRecorder recorder = null;private ConcurrentLinkedDeque<Long> mPtsQueue = new ConcurrentLinkedDeque<>();public void clear(){mPtsQueue.clear();}public RtmpPusher(String address,String ssrc,String type){this.address = address;this.ssrc = ssrc;this.type=type;}//将数据写入管道public void onMediaStream(byte[] data, int offset,int length,boolean isAudio){try {if(!isAudio&&mRunning){pos.write(data,offset,length);}} catch (IOException e) {log.error(e.getMessage());}}/*** 有的设备 timebase 90000，有的直接 1000*/public void onPts(long pts,boolean isAudio) {if(isAudio){return;}//分辨timebase是 90000 还是 1000//如果是90000 pts/90if(mLastPts == 0 && pts != 0){mIs90000TimeBase = (pts >= 3000);}if(mIs90000TimeBase){pts = pts / 90;}//如果当前pts小于之前的pts//推流会崩溃//av_write_frame() error -22 while writing video packet.if(mLastPts != 0 && pts < mLastPts){pts = mLastPts + 40;}mPtsQueue.add(pts);mLastPts = pts;//log.info("pts >>> {}",pts);}@Overridepublic void run() {Long pts  = 0L;try{//默认1024pis = new PipedInputStream(pos,1024);// 这里不要默认，会导致内存溢出，调小。太大会造成播放延时grabber = new FFmpegFrameGrabber(pis,1024);//阻塞式，直到通道有数据grabber.start();log.info("[{}]-->[{}] grabber启动",type,ssrc);//参考javacv配置recorder = new CustomFFmpegFrameRecorder(address,1280,720,0);recorder.setInterleaved(true);recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);recorder.setFormat("flv");recorder.setFrameRate(grabber.getFrameRate());recorder.start(grabber.getFormatContext());avcodec.AVPacket avPacket;readTime=System.currentTimeMillis();//加入超时检测if(!SsrcLiveCheck.rtmps.contains(this)){SsrcLiveCheck.rtmps.add(this);}log.info("[{}]-->[{}] 推流器启动",type,ssrc);while(mRunning){if((avPacket=grabber.grabPacket()) != null && avPacket.size() >0 && avPacket.data() != null){//每次获取包都更新时间戳 用于超时断开readTime=System.currentTimeMillis();pts = mPtsQueue.pop();if(pts==null){continue;}//pts+=40;recorder.recordPacket(avPacket,pts,pts);//continue;}//log.warn("avPacket is null");}}catch(Exception e){//e.printStackTrace();log.error(e.getMessage(),e);//System.exit(1);}finally{close();}log.error("推流结束");}public void close(){log.info("关闭推流器");try{if(recorder != null){log.info("关闭recorder");try {recorder.close();}catch (Exception e){log.error(e.getMessage(),e);}}if(grabber != null){log.info("关闭grabber");try {grabber.close();}catch (Exception e){log.error(e.getMessage(),e);}}pos.close();pis.close();}catch(Exception e){log.error(e.getMessage(),e);}mRunning=false;}public boolean checkTimeout(){//超时最大延时3sif(System.currentTimeMillis()-readTime>3000){return true;}return false;}//两个都要退出 避免线程阻塞public void stopRemux() {this.mRunning = false;thread.interrupt();}public void startRemux() {//保存线程，避免grabPacket阻塞无法自动退出while循环 需要调用interrupt退出阻塞thread=new Thread(this);thread.setDaemon(true);thread.setName("RtmpPusher thread "+ssrc);thread.start();}
}

推流器超时检测

import com.fengyulei.fylsipserver.media.push.RtmpPusher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;@Component
public class SsrcLiveCheck implements Runnable{private static final Logger logger = LoggerFactory.getLogger(SsrcLiveCheck.class);public static final List<RtmpPusher> rtmps=new ArrayList<>();private Boolean flag=true;private int time=0;//@Autowired//private MediaUdpHandler mediaUdpHandler;//@Autowired//private MediaTcpHandler mediaTcpHandler;@PostConstructprivate void init(){Thread thread=new Thread(this);thread.setDaemon(true);thread.setName("SsrcLiveCheck thread");thread.start();}@Overridepublic void run() {while (flag){Iterator<RtmpPusher> iterator=rtmps.iterator();while (iterator.hasNext()) {RtmpPusher rtmpPusher = iterator.next();if(rtmpPusher.mRunning){if(rtmpPusher.checkTimeout()){if("UDP".equals(rtmpPusher.getType())){MediaTcpHandler.remove(rtmpPusher.getSsrc());}else if("TCP".equals(rtmpPusher.getType())){SsrcTcpHandler ssrcTcpHandler=MediaTcpHandler.remove(rtmpPusher.getSsrc());ssrcTcpHandler.getChannel().close();}rtmpPusher.stopRemux();iterator.remove();logger.error("超时");}}}time++;if(time==15){time=0;//Runtime.getRuntime().gc();}try {Thread.sleep(1000);} catch (InterruptedException e) {logger.error(e.getMessage(),e);}}}
}

推出rtmp之后可以使用nginx接收rtmp流进行播放，有疑问欢迎大佬指正

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