From 2e98b20bea4463e4465e3c19059d0744a09aec06 Mon Sep 17 00:00:00 2001
From: zhongrj <646384940@qq.com>
Date: Tue, 27 Jun 2023 14:34:41 +0800
Subject: [PATCH] gb28181版本升级-补充

---
 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/ByeRequestProcessor.java |  162 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 162 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/ByeRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/ByeRequestProcessor.java
new file mode 100644
index 0000000..addd633
--- /dev/null
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/ByeRequestProcessor.java
@@ -0,0 +1,162 @@
+package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl;
+
+import com.genersoft.iot.vmp.common.StreamInfo;
+import com.genersoft.iot.vmp.conf.exception.SsrcTransactionNotFoundException;
+import com.genersoft.iot.vmp.gb28181.bean.Device;
+import com.genersoft.iot.vmp.gb28181.bean.InviteStreamType;
+import com.genersoft.iot.vmp.gb28181.bean.SendRtpItem;
+import com.genersoft.iot.vmp.gb28181.bean.SsrcTransaction;
+import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
+import com.genersoft.iot.vmp.gb28181.transmit.SIPProcessorObserver;
+import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommander;
+import com.genersoft.iot.vmp.gb28181.transmit.event.request.ISIPRequestProcessor;
+import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
+import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory;
+import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
+import com.genersoft.iot.vmp.service.IDeviceService;
+import com.genersoft.iot.vmp.service.IMediaServerService;
+import com.genersoft.iot.vmp.service.bean.MessageForPushChannel;
+import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
+import com.genersoft.iot.vmp.storager.IVideoManagerStorage;
+import gov.nist.javax.sip.message.SIPRequest;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import javax.sip.*;
+import javax.sip.address.SipURI;
+import javax.sip.header.CallIdHeader;
+import javax.sip.header.FromHeader;
+import javax.sip.header.HeaderAddress;
+import javax.sip.header.ToHeader;
+import javax.sip.message.Response;
+import java.text.ParseException;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * SIP命令类型: BYE请求
+ */
+@Component
+public class ByeRequestProcessor extends SIPRequestProcessorParent implements InitializingBean, ISIPRequestProcessor {
+
+	private final Logger logger = LoggerFactory.getLogger(ByeRequestProcessor.class);
+	private final String method = "BYE";
+
+	@Autowired
+	private ISIPCommander cmder;
+
+	@Autowired
+	private IRedisCatchStorage redisCatchStorage;
+
+	@Autowired
+	private IDeviceService deviceService;
+
+	@Autowired
+	private IVideoManagerStorage storager;
+
+	@Autowired
+	private ZLMRTPServerFactory zlmrtpServerFactory;
+
+	@Autowired
+	private IMediaServerService mediaServerService;
+
+	@Autowired
+	private SIPProcessorObserver sipProcessorObserver;
+
+	@Autowired
+	private VideoStreamSessionManager streamSession;
+
+	@Override
+	public void afterPropertiesSet() throws Exception {
+		// 添加消息处理的订阅
+		sipProcessorObserver.addRequestProcessor(method, this);
+	}
+
+	/**
+	 * 处理BYE请求
+	 * @param evt
+	 */
+	@Override
+	public void process(RequestEvent evt) {
+
+		try {
+			responseAck((SIPRequest) evt.getRequest(), Response.OK);
+		} catch (SipException | InvalidArgumentException | ParseException e) {
+			logger.error("[回复BYE信息失败],{}", e.getMessage());
+		}
+		CallIdHeader callIdHeader = (CallIdHeader)evt.getRequest().getHeader(CallIdHeader.NAME);
+			String platformGbId = ((SipURI) ((HeaderAddress) evt.getRequest().getHeader(FromHeader.NAME)).getAddress().getURI()).getUser();
+			String channelId = ((SipURI) ((HeaderAddress) evt.getRequest().getHeader(ToHeader.NAME)).getAddress().getURI()).getUser();
+			SendRtpItem sendRtpItem =  redisCatchStorage.querySendRTPServer(platformGbId, channelId, null, callIdHeader.getCallId());
+			logger.info("[收到bye] {}/{}", platformGbId, channelId);
+			if (sendRtpItem != null){
+				String streamId = sendRtpItem.getStreamId();
+				Map<String, Object> param = new HashMap<>();
+				param.put("vhost","__defaultVhost__");
+				param.put("app",sendRtpItem.getApp());
+				param.put("stream",streamId);
+				param.put("ssrc",sendRtpItem.getSsrc());
+				logger.info("[收到bye] 停止向上级推流:{}", streamId);
+				MediaServerItem mediaInfo = mediaServerService.getOne(sendRtpItem.getMediaServerId());
+				redisCatchStorage.deleteSendRTPServer(platformGbId, channelId, callIdHeader.getCallId(), null);
+				zlmrtpServerFactory.stopSendRtpStream(mediaInfo, param);
+				int totalReaderCount = zlmrtpServerFactory.totalReaderCount(mediaInfo, sendRtpItem.getApp(), streamId);
+				if (totalReaderCount <= 0) {
+					logger.info("[收到bye] {} 无其它观看者,通知设备停止推流", streamId);
+					if (sendRtpItem.getPlayType().equals(InviteStreamType.PLAY)) {
+						Device device = deviceService.getDevice(sendRtpItem.getDeviceId());
+						if (device == null) {
+							logger.info("[收到bye] {} 通知设备停止推流时未找到设备信息", streamId);
+						}
+						try {
+							logger.warn("[停止点播] {}/{}", sendRtpItem.getDeviceId(), channelId);
+							cmder.streamByeCmd(device, channelId, streamId, null);
+						} catch (InvalidArgumentException | ParseException | SipException |
+								 SsrcTransactionNotFoundException e) {
+							logger.error("[收到bye] {} 无其它观看者,通知设备停止推流, 发送BYE失败 {}",streamId, e.getMessage());
+						}
+					}
+					if (sendRtpItem.getPlayType().equals(InviteStreamType.PUSH)) {
+						MessageForPushChannel messageForPushChannel = MessageForPushChannel.getInstance(0,
+								sendRtpItem.getApp(), sendRtpItem.getStreamId(), sendRtpItem.getChannelId(),
+								sendRtpItem.getPlatformId(), null, null, sendRtpItem.getMediaServerId());
+						redisCatchStorage.sendStreamPushRequestedMsg(messageForPushChannel);
+					}
+				}
+			}
+			// 可能是设备主动停止
+			Device device = storager.queryVideoDeviceByChannelId(platformGbId);
+			if (device != null) {
+				storager.stopPlay(device.getDeviceId(), channelId);
+				StreamInfo streamInfo = redisCatchStorage.queryPlayByDevice(device.getDeviceId(), channelId);
+				if (streamInfo != null) {
+					redisCatchStorage.stopPlay(streamInfo);
+					mediaServerService.closeRTPServer(streamInfo.getMediaServerId(), streamInfo.getStream());
+				}
+				SsrcTransaction ssrcTransactionForPlay = streamSession.getSsrcTransaction(device.getDeviceId(), channelId, "play", null);
+				if (ssrcTransactionForPlay != null){
+					if (ssrcTransactionForPlay.getCallId().equals(callIdHeader.getCallId())){
+						// 释放ssrc
+						MediaServerItem mediaServerItem = mediaServerService.getOne(ssrcTransactionForPlay.getMediaServerId());
+						if (mediaServerItem != null) {
+							mediaServerService.releaseSsrc(mediaServerItem.getId(), ssrcTransactionForPlay.getSsrc());
+						}
+						streamSession.remove(device.getDeviceId(), channelId, ssrcTransactionForPlay.getStream());
+					}
+				}
+				SsrcTransaction ssrcTransactionForPlayBack = streamSession.getSsrcTransaction(device.getDeviceId(), channelId, callIdHeader.getCallId(), null);
+				if (ssrcTransactionForPlayBack != null) {
+					// 释放ssrc
+					MediaServerItem mediaServerItem = mediaServerService.getOne(ssrcTransactionForPlayBack.getMediaServerId());
+					if (mediaServerItem != null) {
+						mediaServerService.releaseSsrc(mediaServerItem.getId(), ssrcTransactionForPlayBack.getSsrc());
+					}
+					streamSession.remove(device.getDeviceId(), channelId, ssrcTransactionForPlayBack.getStream());
+				}
+			}
+
+	}
+}

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