Jtt1078Handler.java
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package cn.org.hentai.jtt1078.server;
import cn.org.hentai.jtt1078.publisher.Channel;
import cn.org.hentai.jtt1078.publisher.PublishManager;
import cn.org.hentai.jtt1078.rtp.H264Packeter;
import cn.org.hentai.jtt1078.rtsp.RtspSessionManager;
import cn.org.hentai.jtt1078.util.Packet;
import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.rtsp.RtspDecoder;
import io.netty.handler.codec.rtsp.RtspEncoder;
import io.netty.util.AttributeKey;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.netty.handler.timeout.IdleState;
import io.netty.handler.timeout.IdleStateEvent;
import java.net.InetSocketAddress;
/**
* Created by matrixy on 2019/4/9.
*/
public class Jtt1078Handler extends SimpleChannelInboundHandler<Packet>
{
static Logger logger = LoggerFactory.getLogger(Jtt1078Handler.class);
private static final AttributeKey<Session> SESSION_KEY = AttributeKey.valueOf("session-key");
@Override
protected void channelRead0(ChannelHandlerContext ctx, Packet packet) throws Exception
{
io.netty.channel.Channel nettyChannel = ctx.channel();
packet.seek(8);
String sim = packet.nextBCD() + packet.nextBCD() + packet.nextBCD() + packet.nextBCD() + packet.nextBCD() + packet.nextBCD();
int channel = packet.nextByte() & 0xff;
String tag = sim + "-" + channel;
if (SessionManager.contains(nettyChannel, "tag") == false) {
Channel chl = PublishManager.getInstance().open(tag);
SessionManager.set(nettyChannel, "tag", tag);
new Thread(new PushTask(tag)).start();
logger.info("start publishing: {} -> {}-{}", Long.toHexString(chl.hashCode() & 0xffffffffL), sim, channel);
}
Integer sequence = SessionManager.get(nettyChannel, "video-sequence");
if (sequence == null) sequence = 0;
// 1. 做好序号
// 2. 音频需要转码后提供订阅
int lengthOffset = 28;
int dataType = (packet.seek(15).nextByte() >> 4) & 0x0f;
int pkType = packet.seek(15).nextByte() & 0x0f;
// 透传数据类型：0100，没有后面的时间以及Last I Frame Interval和Last Frame Interval字段
if (dataType == 0x04) lengthOffset = 28 - 8 - 2 - 2;
else if (dataType == 0x03) lengthOffset = 28 - 4;
int pt = packet.seek(5).nextByte() & 0x7f;
if (dataType == 0x00 || dataType == 0x01 || dataType == 0x02)
{
// 碰到结束标记时，序号+1
if (pkType == 0 || pkType == 2)
{
sequence += 1;
SessionManager.set(nettyChannel, "video-sequence", sequence);
}
long timestamp = packet.seek(16).nextLong();
//PublishManager.getInstance().publishVideo(tag, sequence, timestamp, pt, packet.seek(lengthOffset + 2).nextBytes());
if (RtspSessionManager.isRegistered(tag)) {
io.netty.channel.Channel push = RtspSessionManager.getPush(tag);
H264Packeter packeter = (H264Packeter) push.attr(AttributeKey.valueOf(tag)).get();
for (byte[] nalu : packeter.packet(packet.seek(lengthOffset + 2).nextBytes(), timestamp)) {
push.writeAndFlush(Unpooled.wrappedBuffer(nalu));
}
}
}
else if (dataType == 0x03)
{
long timestamp = packet.seek(16).nextLong();
byte[] data = packet.seek(lengthOffset + 2).nextBytes();
PublishManager.getInstance().publishAudio(tag, sequence, timestamp, pt, data);
}
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception
{
super.channelInactive(ctx);
release(ctx.channel());
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception
{
// super.exceptionCaught(ctx, cause);
cause.printStackTrace();
release(ctx.channel());
ctx.close();
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
if (IdleStateEvent.class.isAssignableFrom(evt.getClass())) {
IdleStateEvent event = (IdleStateEvent) evt;
if (event.state() == IdleState.READER_IDLE) {
String tag = SessionManager.get(ctx.channel(), "tag");
logger.info("read timeout: {}",tag);
release(ctx.channel());
}
}
}
private void release(io.netty.channel.Channel channel)
{
String tag = SessionManager.get(channel, "tag");
if (tag != null)
{
logger.info("close netty channel: {}", tag);
PublishManager.getInstance().close(tag);
}
}
static class PushTask implements Runnable {
private String channelId;
private H264Packeter packeter = new H264Packeter();
public PushTask(String channelId) {
this.channelId = channelId;
}
@Override
public void run() {
EventLoopGroup group = new NioEventLoopGroup();
try {
ChannelFuture future = null;
Bootstrap clientBootstrap = new Bootstrap();
clientBootstrap.group(group)
.option(ChannelOption.TCP_NODELAY, true)
.channel(NioSocketChannel.class)
.remoteAddress(new InetSocketAddress("192.168.169.100", 9555))
.handler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel socketChannel) {
socketChannel.pipeline()
.addLast(new RtspEncoder())
.addLast(new RtspDecoder())
.addLast(new RTSPHandler());
}
});
while (true) {
logger.info("Waiting for server connection");
future = clientBootstrap.connect();
future.awaitUninterruptibly();
if (future.isSuccess()) {
logger.info("RTSP Connection success!");
break;
}
Thread.sleep(1000);
}
future.channel().attr(AttributeKey.valueOf(this.channelId)).set(this.packeter);
RtspSessionManager.setPush(this.channelId, future.channel());
// Wait for the server to close the connection.
//future.channel().closeFuture().sync();
} catch (Exception e) {
logger.error("Error ->", e);
logger.error("<- Error");
}
}
}
}