From 5ebd788cef062b343ff214a7ff9022fb2ba178d1 Mon Sep 17 00:00:00 2001
From: shanyuanzz <46706605+shanyuanzz@users.noreply.github.com>
Date: Sun, 28 May 2023 14:01:51 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E4=BD=8E=E5=80=8D=E9=80=9F?=
 =?UTF-8?q?=E4=B8=8Bzoom=E5=8F=98=E5=80=8D=E9=80=9F=E7=8E=87?=
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1.优化zoom缩放在1-FH低倍速下的变倍速率。
避免变倍速率过大或者某些相机无法变倍的问题。
---
 .../java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
index d6037a11..a7ce8c0b 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -113,6 +113,12 @@ public class SipUtils {
         strTmp = String.format("%02X", moveSpeed);
         builder.append(strTmp, 0, 2);
         builder.append(strTmp, 0, 2);
+        
+        //优化zoom低倍速下的变倍速率
+        if ((zoomSpeed > 0) && (zoomSpeed <16))
+        {
+            zoomSpeed = 16;
+        }
         strTmp = String.format("%X", zoomSpeed);
         builder.append(strTmp, 0, 1).append("0");
         //计算校验码