web网站实现实时在线视频通话 七牛云实时音视频

七牛云实时音视频 相关配置（直播空间创建，推流域名绑定）生成视频播放文件

• 1.创建连麦应用（创建一个音视频会话的应用）
  
  直播空间可以先不关联 ，等一切配置好后 再回过头配置。

• 2.创建一个直播空间进行推流操作，

  需要一个必须在中国大陆地区完成 ICP 备案和 公安部备案 的域名。

  并且会给你生成一些列的推流需要用到的二级域名，你需要创建出来 并且配置cname。
  
  再进行直播空间配置，设置推流文件的储存空间，
  
  配置直播空间需要一个存储空间位置，那就在七牛云的对象储存再创建一个储存空间即刻。
  

• 3.储存空间的文件想要有一个外网访问链接，则需要配置一个外链域名（二级域名即刻）。并解析好cname。
  
  此时 空间即可使用，上传一个文件。再用外链访问测试。

• 4.配置实时音视频应用直播空间。
  

  配置推流
  
  ${roomName}为魔法变量，也就是说 你进行客户端推流时，会自动以房间名称作为流名称创建一个直播流进行推流操作。

  • 5.具体操作

    5.1生成视频会话房间

    accessKey，secretKey：你创建好你的七牛云账号后在个人中心 密钥管理里面可以获取到

    appId：你创建的实时音视频的连麦应用名称

    //生成申请方和会诊方的roomToken
    Auth auth = Auth.create(accessKey, secretKey);
    RtcRoomManager rmanager = new RtcRoomManager(auth);
    String applyRoomToken = "";
    String diaRoomToken = "";
    String pushStreamToken1 = "";
    String pushStreamToken2 = "";
    String roomName = "";
    //获取今天已经存在会诊房间数量
    try {
       String format = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
       roomName = "hzRoom-" + format;//房间名称
       applyRoomToken = rmanager.getRoomToken(appId,roomName,"user1",remoteDiagnoseRequest.getValidTime().getTime(), "user");
       diaRoomToken = rmanager.getRoomToken(appId, roomName, "user2", remoteDiagnoseRequest.getValidTime().getTime(), "user");
       } catch (Exception e) {
          e.printStackTrace();
           throw new PublicException("新增失败，生成会诊房间令牌异常！");
       }
    

    5.2 前端接入，通过roomToken 加入视频会话

    推流以客户端为主

    官方文档：https://doc.qnsdk.com/rtn/web/docs/merge_stream_track

    5.3 推流后是在你配置好的储存空间生成一些列的**.ts**切片文件。

    你需要调用官方提供的api,地址：https://developer.qiniu.com/pili/api/2777/save-the-live-playback

    示例：

    hubName ：是你实时音视频云关联的直播空间名称

    /**
     * 
     * @param startTime 视频开始的时间
     * @param endTime 视频结束的时间
     * @param roomName 你创建的视频会话房间名称
     * @return 返回一个视频外链访问地址
     * @throws Exception
    */
    private String uploadDiaVideo(Date startTime, Date endTime, String roomName)      throws Exception {
       CloseableHttpClient client = null;
       CloseableHttpResponse response = null;
       String fname = hubName + "." + roomName + "/" + StringUtil.getUUID() + ".m3u8";
       String roomNameBase64=Base64.getEncoder().encodeToString(roomName.getBytes());
       String url = "http://pili.qiniuapi.com/v2/hubs/" + hubName + "/streams/" + roomNameBase64 + "/saveas";
       Auth auth = Auth.create(accessKey, secretKey);
       ObjectMapper objectMapper = new ObjectMapper();
       Map<String, Object> data = new HashMap<String, Object>();
       data.put("start", startTime.getTime() / 1000); 
       data.put("end", endTime.getTime() / 1000);
    // data.put("expireDays", 2);
       data.put("fname", fname);
       String accToken = (String) auth.authorizationV2(url, "POST", JSON.toJSONString(data).getBytes(), "application/json").get("Authorization");
       System.out.println("accToken------------------->" + accToken);
       try {
          HttpPost httpPost = new HttpPost(url);
           httpPost.setHeader(HTTP.CONTENT_TYPE, "application/json");
           httpPost.setHeader("Authorization", accToken);
           httpPost.setEntity(new StringEntity(JSON.toJSONString(data),        ContentType.create("text/json", "UTF-8")));
           client = HttpClients.createDefault();
           response = client.execute(httpPost);
           HttpEntity entity = response.getEntity();
           String result = EntityUtils.toString(entity);
           } finally {
            if (response != null) {
               response.close();
             }
            if (client != null) {
                 client.close();
              }
            }
            return videos2AccessUrl + fname;
        }生成视频封面图片
        
    

其他：生成视频封面文件

    /**
     * 
     * @param startTime
     * @param roomName
     * @return
     * @throws Exception
     */
    private String uploadDiaVideoCover(Date startTime, String roomName) throws Exception {
        CloseableHttpClient client = null;
        CloseableHttpResponse response = null;
        String roomNameBase64 = Base64.getEncoder().encodeToString(roomName.getBytes());
        String url = "http://pili.qiniuapi.com/v2/hubs/" + hubName + "/streams/" + roomNameBase64 + "/snapshot";
        String fname = hubName + "." + roomName + "/" + StringUtil.getUUID() + ".jpg";
        Auth auth = Auth.create(accessKey, secretKey);
        ObjectMapper objectMapper = new ObjectMapper();
        Map<String, Object> data = new HashMap<String, Object>();
        data.put("time", startTime.getTime() / 1000);
        data.put("deleteAfterDays", 0);
        data.put("fname", fname);
        String accToken = (String) auth.authorizationV2(url, "POST", JSON.toJSONString(data).getBytes(), "application/json").get("Authorization");
        System.out.println("accToken------------------->" + accToken);
        HttpPost httpPost = new HttpPost(url);
        httpPost.setHeader(HTTP.CONTENT_TYPE, "application/json");
        httpPost.setHeader("Authorization", accToken);
        try {
            httpPost.setEntity(new StringEntity(objectMapper.writeValueAsString(data), ContentType.create("text/json", "UTF-8")));

            client = HttpClients.createDefault();
            response = client.execute(httpPost);
            HttpEntity entity = response.getEntity();

        } finally {
            if (response != null) {
                response.close();
            }
            if (client != null) {
                client.close();
            }
        }
        return videos2AccessUrl + fname;
    }