diff --git a/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/IjkMediaPlayer.java b/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/IjkMediaPlayer.java
index 1575d5d0c..f9c510d40 100644
--- a/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/IjkMediaPlayer.java
+++ b/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/IjkMediaPlayer.java
@@ -200,6 +200,7 @@ public final class IjkMediaPlayer extends AbstractMediaPlayer {
         synchronized (IjkMediaPlayer.class) {
             if (!mIsNativeInitialized) {
                 native_init();
+                native_setDot(0);
                 native_setLogLevel(IjkMediaPlayer.IJK_LOG_SILENT);
                 mIsNativeInitialized = true;
             }
@@ -1156,4 +1157,6 @@ public final class IjkMediaPlayer extends AbstractMediaPlayer {
     public static native void native_profileEnd();
 
     public static native void native_setLogLevel(int level);
+
+    public static native void native_setDot(int port);
 }
diff --git a/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/ui/IjkVideoView.java b/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/ui/IjkVideoView.java
index e9b40acdb..3782bb5f0 100644
--- a/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/ui/IjkVideoView.java
+++ b/ijkplayer/src/main/java/tv/danmaku/ijk/media/player/ui/IjkVideoView.java
@@ -523,7 +523,7 @@ public class IjkVideoView extends FrameLayout implements MediaController.MediaPl
         mIjkPlayer.setOnInfoListener(mInfoListener);
         mIjkPlayer.setOnBufferingUpdateListener(mBufferingUpdateListener);
         mIjkPlayer.setOnTimedTextListener(mOnTimedTextListener);
-        mIjkPlayer.setOption(codec, "skip_loop_filter", 48);
+        mIjkPlayer.setOption(codec, "skip_loop_filter", 0);
         mIjkPlayer.setOption(format, "dns_cache_clear", 1);
         mIjkPlayer.setOption(format, "dns_cache_timeout", -1);
         mIjkPlayer.setOption(format, "fflags", "fastseek");
@@ -532,9 +532,10 @@ public class IjkVideoView extends FrameLayout implements MediaController.MediaPl
         mIjkPlayer.setOption(player, "framedrop", 1);
         mIjkPlayer.setOption(player, "max-buffer-size", 15 * 1024 * 1024);
         mIjkPlayer.setOption(player, "mediacodec", mCurrentDecode);
+        mIjkPlayer.setOption(player, "mediacodec-hevc", mCurrentDecode);
+        mIjkPlayer.setOption(player, "mediacodec-all-videos", mCurrentDecode);
         mIjkPlayer.setOption(player, "mediacodec-auto-rotate", mCurrentDecode);
         mIjkPlayer.setOption(player, "mediacodec-handle-resolution-change", mCurrentDecode);
-        mIjkPlayer.setOption(player, "mediacodec-hevc", mCurrentDecode);
         mIjkPlayer.setOption(player, "opensles", 0);
         mIjkPlayer.setOption(player, "overlay-format", IjkMediaPlayer.SDL_FCC_RV32);
         mIjkPlayer.setOption(player, "reconnect", 1);
@@ -544,7 +545,6 @@ public class IjkVideoView extends FrameLayout implements MediaController.MediaPl
         if (url.contains("rtsp") || url.contains("udp") || url.contains("rtp")) {
             mIjkPlayer.setOption(format, "infbuf", 1);
             mIjkPlayer.setOption(format, "rtsp_transport", "tcp");
-            mIjkPlayer.setOption(format, "rtsp_flags", "prefer_tcp");
             mIjkPlayer.setOption(format, "probesize", 512 * 1000);
             mIjkPlayer.setOption(format, "analyzeduration", 2 * 1000 * 1000);
         }