修复点播判断错误导致的15s超长延时

增加默认不关闭推流, 无人观看超时或点击停止按钮关闭流
修复点播其他bug

src/main/java/com/genersoft/iot/vmp/gb28181/bean/DeviceChannel.java

@@ -148,6 +148,11 @@ public class DeviceChannel {
 	 */
 	private  boolean hasAudio;
 
+	/**
+	 *  是否正在播放
+	 */
+	private  boolean play;
+
 	public String getChannelId() {
 		return channelId;
 	}
@@ -388,4 +393,12 @@ public class DeviceChannel {
 	public void setHasAudio(boolean hasAudio) {
 		this.hasAudio = hasAudio;
 	}
+
+	public boolean isPlay() {
+		return play;
+	}
+
+	public void setPlay(boolean play) {
+		this.play = play;
+	}
 }