Lawrence
2020-11-07 f68cfd8de2cf6e516e220d1a706cecabb2b185aa
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package com.genersoft.iot.vmp.vmanager.play;
 
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.genersoft.iot.vmp.common.StreamInfo;
import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import com.alibaba.fastjson.JSONObject;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
 
@CrossOrigin
@RestController
@RequestMapping("/api")
public class PlayController {
 
    private final static Logger logger = LoggerFactory.getLogger(PlayController.class);
 
    @Autowired
    private SIPCommander cmder;
 
    @Autowired
    private IVideoManagerStorager storager;
 
    @Autowired
    private ZLMRESTfulUtils zlmresTfulUtils;
 
    @GetMapping("/play/{deviceId}/{channelId}")
    public ResponseEntity<String> play(@PathVariable String deviceId, @PathVariable String channelId,
    Integer getEncoding) {
 
        Device device = storager.queryVideoDevice(deviceId);
        StreamInfo streamInfo = storager.queryPlayByDevice(deviceId, channelId);
 
        if (streamInfo == null) {
            streamInfo = cmder.playStreamCmd(device, channelId);
        } else {
            String streamId = String.format("%08x", Integer.parseInt(streamInfo.getSsrc())).toUpperCase();
            JSONObject rtpInfo = zlmresTfulUtils.getRtpInfo(streamId);
            if (rtpInfo.getBoolean("exist")) {
                return new ResponseEntity<String>(JSON.toJSONString(streamInfo), HttpStatus.OK);
            } else {
                storager.stopPlay(streamInfo);
                streamInfo = cmder.playStreamCmd(device, channelId);
            }
 
        }
        String streamId = String.format("%08x", Integer.parseInt(streamInfo.getSsrc())).toUpperCase();
        // 等待推流, TODO 默认超时30s
        boolean lockFlag = true;
        boolean rtpPushed = false;
        long startTime = System.currentTimeMillis();
        JSONObject rtpInfo = null;
 
        if (getEncoding == 1) {
            while (lockFlag) {
                try {
                    if (System.currentTimeMillis() - startTime > 60 * 1000) {
                        storager.stopPlay(streamInfo);
                        logger.info("播放等待超时");
                        return new ResponseEntity<String>("timeout", HttpStatus.OK);
                    } else {
                        streamInfo = storager.queryPlayByDevice(deviceId, channelId);
                        if (!rtpPushed) {
                            logger.info("查询RTP推流信息...");
                            rtpInfo = zlmresTfulUtils.getRtpInfo(streamId);
                        }
                        if (rtpInfo != null && rtpInfo.getBoolean("exist") && streamInfo != null
                                && streamInfo.getFlv() != null) {
                            logger.info("查询流编码信息:" + streamInfo.getFlv());
                            rtpPushed = true;
                            Thread.sleep(2000);
                            JSONObject mediaInfo = zlmresTfulUtils.getMediaInfo("rtp", "rtmp", streamId);
                            if (mediaInfo.getInteger("code") == 0 && mediaInfo.getBoolean("online")) {
                                lockFlag = false;
                                logger.info("流编码信息已获取");
                                JSONArray tracks = mediaInfo.getJSONArray("tracks");
                                streamInfo.setTracks(tracks);
                                storager.startPlay(streamInfo);
                            } else {
                                logger.info("流编码信息未获取,2秒后重试...");
                            }
                        } else {
                            Thread.sleep(2000);
                            continue;
                        }
                    }
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        } else {
            String flv = storager.getMediaInfo().getLocalIP() + ":" + storager.getMediaInfo().getHttpPort() + "/rtp/"
                    + streamId + ".flv";
            streamInfo.setFlv("http://" + flv);
            streamInfo.setWs_flv("ws://" + flv);
            storager.startPlay(streamInfo);
        }
 
        if (logger.isDebugEnabled()) {
            logger.debug(String.format("设备预览 API调用,deviceId:%s ,channelId:%s", deviceId, channelId));
            logger.debug("设备预览 API调用,ssrc:" + streamInfo.getSsrc() + ",ZLMedia streamId:"
                    + Integer.toHexString(Integer.parseInt(streamInfo.getSsrc())));
        }
 
        if (streamInfo != null) {
            return new ResponseEntity<String>(JSON.toJSONString(streamInfo), HttpStatus.OK);
        } else {
            logger.warn("设备预览API调用失败!");
            return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }
 
    @PostMapping("/play/{ssrc}/stop")
    public ResponseEntity<String> playStop(@PathVariable String ssrc) {
 
        cmder.streamByeCmd(ssrc);
        StreamInfo streamInfo = storager.queryPlayBySSRC(ssrc);
        if (streamInfo == null)
            return new ResponseEntity<String>(HttpStatus.PAYMENT_REQUIRED);
        storager.stopPlay(streamInfo);
        if (logger.isDebugEnabled()) {
            logger.debug(String.format("设备预览停止API调用,ssrc:%s", ssrc));
        }
 
        if (ssrc != null) {
            JSONObject json = new JSONObject();
            json.put("ssrc", ssrc);
            return new ResponseEntity<String>(json.toString(), HttpStatus.OK);
        } else {
            logger.warn("设备预览停止API调用失败!");
            return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }
}