diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/impl/SIPCommander.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/impl/SIPCommander.java
index 047918cb..a33678c4 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/impl/SIPCommander.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/impl/SIPCommander.java
@@ -329,7 +329,7 @@ public class SIPCommander implements ISIPCommander {
 			streamInfo.setSsrc(ssrc);
 			streamInfo.setCahnnelId(channelId);
 			streamInfo.setDeviceID(device.getDeviceId());
-			boolean b = storager.startPlayBlack(streamInfo);
+			boolean b = storager.startPlayback(streamInfo);
 			return streamInfo;
 
 		} catch ( SipException | ParseException | InvalidArgumentException e) {
diff --git a/src/main/java/com/genersoft/iot/vmp/storager/IVideoManagerStorager.java b/src/main/java/com/genersoft/iot/vmp/storager/IVideoManagerStorager.java
index 26809220..fdf4bc33 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/IVideoManagerStorager.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/IVideoManagerStorager.java
@@ -184,11 +184,11 @@ public interface IVideoManagerStorager {
 
 	Map<String, StreamInfo> queryPlayByDeviceId(String deviceId);
 
-	boolean startPlayBlack(StreamInfo streamInfo);
+	boolean startPlayback(StreamInfo streamInfo);
 
-	boolean stopPlayBlack(StreamInfo streamInfo);
+	boolean stopPlayback(StreamInfo streamInfo);
 
-	StreamInfo queryPlayBlackByDevice(String deviceId, String channelId);
+	StreamInfo queryPlaybackByDevice(String deviceId, String channelId);
 
-	StreamInfo queryPlayBlackBySSRC(String ssrc);
+	StreamInfo queryPlaybackBySSRC(String ssrc);
 }
diff --git a/src/main/java/com/genersoft/iot/vmp/storager/jdbc/VideoManagerJdbcStoragerImpl.java b/src/main/java/com/genersoft/iot/vmp/storager/jdbc/VideoManagerJdbcStoragerImpl.java
index de94f865..75b9c929 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/jdbc/VideoManagerJdbcStoragerImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/jdbc/VideoManagerJdbcStoragerImpl.java
@@ -195,22 +195,22 @@ public class VideoManagerJdbcStoragerImpl implements IVideoManagerStorager {
 	}
 
 	@Override
-	public boolean startPlayBlack(StreamInfo streamInfo) {
+	public boolean startPlayback(StreamInfo streamInfo) {
 		return false;
 	}
 
 	@Override
-	public boolean stopPlayBlack(StreamInfo streamInfo) {
+	public boolean stopPlayback(StreamInfo streamInfo) {
 		return false;
 	}
 
 	@Override
-	public StreamInfo queryPlayBlackByDevice(String deviceId, String channelId) {
+	public StreamInfo queryPlaybackByDevice(String deviceId, String channelId) {
 		return null;
 	}
 
 	@Override
-	public StreamInfo queryPlayBlackBySSRC(String ssrc) {
+	public StreamInfo queryPlaybackBySSRC(String ssrc) {
 		return null;
 	}
 }
diff --git a/src/main/java/com/genersoft/iot/vmp/storager/redis/VideoManagerRedisStoragerImpl.java b/src/main/java/com/genersoft/iot/vmp/storager/redis/VideoManagerRedisStoragerImpl.java
index e6a680b8..7c3a2fc8 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/redis/VideoManagerRedisStoragerImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/redis/VideoManagerRedisStoragerImpl.java
@@ -409,7 +409,7 @@ public class VideoManagerRedisStoragerImpl implements IVideoManagerStorager {
 	}
 
 	@Override
-	public StreamInfo queryPlayBlackBySSRC(String ssrc) {
+	public StreamInfo queryPlaybackBySSRC(String ssrc) {
 //		List<Object> playLeys = redis.keys(String.format("%S_%s_*", VideoManagerConstants.PLAYER_PREFIX, ssrc));
 		List<Object> playLeys = redis.scan(String.format("%S_%s_*", VideoManagerConstants.PLAY_BLACK_PREFIX, ssrc));
 		if (playLeys == null || playLeys.size() == 0) return null;
@@ -505,14 +505,14 @@ public class VideoManagerRedisStoragerImpl implements IVideoManagerStorager {
 
 
 	@Override
-	public boolean startPlayBlack(StreamInfo stream) {
+	public boolean startPlayback(StreamInfo stream) {
 		return redis.set(String.format("%S_%s_%s_%s", VideoManagerConstants.PLAY_BLACK_PREFIX, stream.getSsrc(),stream.getDeviceID(), stream.getCahnnelId()),
 				stream);
 	}
 
 
 	@Override
-	public boolean stopPlayBlack(StreamInfo streamInfo) {
+	public boolean stopPlayback(StreamInfo streamInfo) {
 		if (streamInfo == null) return false;
 		DeviceChannel deviceChannel = queryChannel(streamInfo.getDeviceID(), streamInfo.getCahnnelId());
 		if (deviceChannel != null) {
@@ -527,7 +527,7 @@ public class VideoManagerRedisStoragerImpl implements IVideoManagerStorager {
 	}
 
 	@Override
-	public StreamInfo queryPlayBlackByDevice(String deviceId, String code) {
+	public StreamInfo queryPlaybackByDevice(String deviceId, String code) {
 		String format = String.format("%S_*_%s_%s", VideoManagerConstants.PLAY_BLACK_PREFIX,
 				deviceId,
 				code);