diff --git a/mpp/sample/common/sample_comm_vo.c b/mpp/sample/common/sample_comm_vo.c
index ee43fe8..590c4fb 100644
--- a/mpp/sample/common/sample_comm_vo.c
+++ b/mpp/sample/common/sample_comm_vo.c
@@ -470,6 +470,7 @@ void vo_chn_switch(int vo_channel , int priority, int mux ){
                 return;
             }
 
+#if 0            
             if (mux == 1) {
                 /* 双屏窗口 960x720：chn0 在左，chn1 在右 */
                 chn_attr.rect.x      = (vo_channel == 0) ? 0 : 960;
@@ -491,6 +492,29 @@ void vo_chn_switch(int vo_channel , int priority, int mux ){
                 chn_attr.rect.width  = 1280;
                 chn_attr.rect.height = 720;
             }
+#endif 
+            if (mux == 1) {
+                /* 双屏 960x720：180° 后 chn0 右下、chn1 左下 */
+                chn_attr.rect.x      = (vo_channel == 0) ? 960 : 0;
+                chn_attr.rect.y      = 480;            /* 1200 - 720 */
+                chn_attr.rect.width  = 960;
+                chn_attr.rect.height = 720;
+
+            } else if (mux == 0) {
+                /* 全屏 1920x1200：中心对称后仍为整屏，位置不动 */
+                chn_attr.rect.x      = 0;
+                chn_attr.rect.y      = 0;
+                chn_attr.rect.width  = 1920;
+                chn_attr.rect.height = 1200;
+
+            } else if (mux == 2) {
+                /* 原右上角 1280x720 → 180° 后落到左下角 */
+                chn_attr.rect.x      = 0;              /* 1920 - 640 - 1280 */
+                chn_attr.rect.y      = 480;            /* 1200 - 0 - 720 */
+                chn_attr.rect.width  = 1280;
+                chn_attr.rect.height = 720;
+            }
+
 
             chn_attr.priority = priority;
 
@@ -897,6 +921,8 @@ static td_s32 sample_comm_vo_get_vo_layer_attr(sample_vo_cfg *vo_config, ot_vo_v
     if (memcmp(&vo_config->disp_rect, &def_disp_rect, sizeof(ot_rect)) != 0) {
         layer_attr->display_rect.width = vo_config->disp_rect.width;
         layer_attr->display_rect.height = vo_config->disp_rect.height;
+        layer_attr->display_rect.width  = vo_config->disp_rect.width;
+        layer_attr->display_rect.height = vo_config->disp_rect.height;
     }
 
     layer_attr->img_size.width = layer_attr->display_rect.width;
diff --git a/mpp/sample/live-22AP10/live/testProgs/testRTSPClient b/mpp/sample/live-22AP10/live/testProgs/testRTSPClient
index 3addad8..54937b8 100644
Binary files a/mpp/sample/live-22AP10/live/testProgs/testRTSPClient and b/mpp/sample/live-22AP10/live/testProgs/testRTSPClient differ
diff --git a/mpp/sample/live-22AP10/live/testProgs/testRTSPClient.cpp b/mpp/sample/live-22AP10/live/testProgs/testRTSPClient.cpp
index aaa1092..1ca49f0 100644
--- a/mpp/sample/live-22AP10/live/testProgs/testRTSPClient.cpp
+++ b/mpp/sample/live-22AP10/live/testProgs/testRTSPClient.cpp
@@ -732,7 +732,7 @@ if((port == 20000) && (strcmp(fSubsession.mediumName(), "audio") == 0)){
 
 		for(i=0;i<iter;i++){
 			sendto(socket_descriptor,&fReceiveBuffer[i*1472],1472,0,(struct sockaddr *)&address,sizeof(address));
-#if 0 //luzhi
+#if 1 //luzhi
 			if(port == 20000){
 				sendto(socket_descriptor,&fReceiveBuffer[i*1472],1472,0,(struct sockaddr *)&address1,sizeof(address1));
 			}
@@ -750,7 +750,7 @@ if((port == 20000) && (strcmp(fSubsession.mediumName(), "audio") == 0)){
 	
 		if(rem > 0){
 			sendto(socket_descriptor,&fReceiveBuffer[i*1472],rem,0,(struct sockaddr *)&address,sizeof(address));
-#if 0
+#if 1
 			if(port == 20000){
 				sendto(socket_descriptor,&fReceiveBuffer[i*1472],rem,0,(struct sockaddr *)&address1,sizeof(address1));	
 			}
diff --git a/mpp/sample/vdec_udp_h265/sample_vdec.c b/mpp/sample/vdec_udp_h265/sample_vdec.c
index 9e85453..55f63fa 100644
--- a/mpp/sample/vdec_udp_h265/sample_vdec.c
+++ b/mpp/sample/vdec_udp_h265/sample_vdec.c
@@ -331,10 +331,10 @@ static td_s32 sample_start_vpss(ot_vpss_grp *vpss_grp, td_u32 vpss_grp_num, td_b
         vpss_chn_attr[1].frame_rate.src_frame_rate = -1;
         vpss_chn_attr[1].frame_rate.dst_frame_rate = -1;
         vpss_chn_attr[1].depth                     = 0;
-        vpss_chn_attr[1].mirror_en             = TD_FALSE; //TD_TRUE; //180
-        vpss_chn_attr[1].flip_en               = TD_FALSE; //TD_TRUE; //180
-        // vpss_chn_attr[1].mirror_en             = TD_TRUE; //TD_TRUE; //180
-        // vpss_chn_attr[1].flip_en               = TD_TRUE; //TD_TRUE; //180
+        // vpss_chn_attr[1].mirror_en             = TD_FALSE; //TD_TRUE; //180
+        // vpss_chn_attr[1].flip_en               = TD_FALSE; //TD_TRUE; //180
+        vpss_chn_attr[1].mirror_en             = TD_TRUE; //TD_TRUE; //180
+        vpss_chn_attr[1].flip_en               = TD_TRUE; //TD_TRUE; //180
         vpss_chn_attr[1].border_en             = TD_FALSE;
         vpss_chn_attr[1].aspect_ratio.mode     = OT_ASPECT_RATIO_NONE;
     }
diff --git a/mpp/sample/vdec_udp_h265/vdec_udp_h265 b/mpp/sample/vdec_udp_h265/vdec_udp_h265
deleted file mode 100644
index 5bc2e40..0000000
Binary files a/mpp/sample/vdec_udp_h265/vdec_udp_h265 and /dev/null differ