修身颠簸与录像回放redis前缀重复的问题

src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java

@@ -35,7 +35,7 @@ public class DeferredResultHolder {
 
 	public static final String CALLBACK_CMD_PLAY = "CALLBACK_PLAY";
 
-	public static final String CALLBACK_CMD_PLAYBACK = "CALLBACK_PLAY";
+	public static final String CALLBACK_CMD_PLAYBACK = "CALLBACK_PLAYBACK";
 
 	public static final String CALLBACK_CMD_DOWNLOAD = "CALLBACK_DOWNLOAD";