修改：信号包独立发包，周期100ms；

布局切换按键，增加开机读取电平状态

mpp/sample/vdec_udp_h265/sample_vdec.c

@@ -48,7 +48,7 @@
 #define REF_NUM 2
 #define DISPLAY_NUM 2
 
-#if 1
+#if 0
 
 #define NOSIGNAL_YUV_PATH "./nosignal.yuv"
 
@@ -333,6 +333,8 @@ static td_s32 sample_start_vpss(ot_vpss_grp *vpss_grp, td_u32 vpss_grp_num, td_b
         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].border_en             = TD_FALSE;
         vpss_chn_attr[1].aspect_ratio.mode     = OT_ASPECT_RATIO_NONE;
     }
@@ -565,7 +567,7 @@ static td_s32 sample_start_vdec(sample_vdec_attr *sample_vdec, td_u32 vdec_chn_n
     return ret;
 }
 
-
+#if 0
 /* ==================== no-signal 占位图 ==================== */
 
 /* 启动时调用：读源图 nosignal.yuv(1920x1200) 到 VB，填成 user pic frame_info */
@@ -681,7 +683,7 @@ td_s32 vdec_set_nosignal_userpic(ot_vdec_chn chn)
     return ret;
 }
 
-
+#endif
 
 void* h265_vdec_vpss_vo()
 {
@@ -716,9 +718,9 @@ void* h265_vdec_vpss_vo()
     }
 
         /* 新增：启动读源图并 set user pic（set 前必须先 disable） */
-     if (load_nosignal_src() != TD_SUCCESS) {
-        printf("[nosignal] load src fail, nosignal disabled\n");
-    }
+    //  if (load_nosignal_src() != TD_SUCCESS) {
+    //     printf("[nosignal] load src fail, nosignal disabled\n");
+    // }
 
 
     /************************************************

mpp/sample/vdec_udp_h265/udp_get_nal_frame.c

@@ -26,7 +26,7 @@
 
 #include "sample_comm.h"
 
-extern td_s32 vdec_set_nosignal_userpic(ot_vdec_chn chn);
+// extern td_s32 vdec_set_nosignal_userpic(ot_vdec_chn chn);
 
 
 
@@ -223,7 +223,7 @@ void *net_recv1(void *arg)
     	int len = sizeof(clientAddr);
 	unsigned char buf[2048];
 	static int count_time_out=0;
-	static int nosignal_on = 0;   //nosignal satuts
+	// static int nosignal_on = 0;   //nosignal satuts
 	ot_vdec_stream stream;
 	int ret;
 
@@ -231,16 +231,16 @@ void *net_recv1(void *arg)
 		i = recvfrom(socket_descriptor[0],buf, 1472, 0, (struct sockaddr*)&clientAddr, &len);
 		if(i>0){
 			switch_video[2] = 0xAA;
-			if (nosignal_on == 1) {
-				ret = ss_mpi_vdec_disable_user_pic(0);
-				printf("[nosignal] disable_user_pic ret=%#x\n", ret);
-				ret = ss_mpi_vdec_start_recv_stream(0);
-				printf("[nosignal] start_recv_stream ret=%#x\n", ret);
-				nosignal_on = 0;
-				printf("[nosignal] -> back to normal decode\n");
-			}
+			// if (nosignal_on == 1) {
+			// 	ret = ss_mpi_vdec_disable_user_pic(0);
+			// 	printf("[nosignal] disable_user_pic ret=%#x\n", ret);
+			// 	ret = ss_mpi_vdec_start_recv_stream(0);
+			// 	printf("[nosignal] start_recv_stream ret=%#x\n", ret);
+			// 	nosignal_on = 0;
+			// 	printf("[nosignal] -> back to normal decode\n");
+			// }
 
-			#if 0	
+#if 0	
 			stream.pts = 0;
                         stream.addr = buf;
                         stream.len = i;
@@ -252,17 +252,17 @@ void *net_recv1(void *arg)
                              ret = ss_mpi_vdec_send_stream(0, &stream, 0);
                         //      usleep(1000);
                         } while (ret != TD_SUCCESS);
-			#endif
+#endif
 			assemble_nal1(buf,i);
 		}
 		if(i<=0){
-			if (nosignal_on == 0) {
-				ss_mpi_vdec_stop_recv_stream(0);
-				ss_mpi_vdec_disable_user_pic(0);      /* 文档：set 前先 disable */
-				vdec_set_nosignal_userpic(0);         /* 通道已停，此时 set 才合法 */
-				ss_mpi_vdec_enable_user_pic(0, 1);    /* 立即显示占位图 */
-				nosignal_on = 1;
-			}
+			// if (nosignal_on == 0) {
+			// 	ss_mpi_vdec_stop_recv_stream(0);
+			// 	ss_mpi_vdec_disable_user_pic(0);      /* 文档：set 前先 disable */
+			// 	vdec_set_nosignal_userpic(0);         /* 通道已停，此时 set 才合法 */
+			// 	ss_mpi_vdec_enable_user_pic(0, 1);    /* 立即显示占位图 */
+			// 	nosignal_on = 1;
+			// }
 			switch_video[2] = 0x55;
 			printf("net1 recv timeout %d\n",i);
 		}