Merge branch 'dev' of https://gitea.yantootech.com/songjvcheng/WebRtc_QingGan into dev

src/index.js

@@ -621,15 +621,17 @@ class WebRTCChat {
         try {
             this.logMessage(`开始平滑切换视频流: ${videoFile} (${type})`, 'info');
             
-            // 显示加载指示器
-            this.showVideoLoading();
+            // 检查是否已缓存，如果已缓存则不显示加载指示器
+            const isCached = this.videoStreams.has(videoFile);
+            if (!isCached) {
+                this.showVideoLoading();
+            }
             
             // 确定当前活跃的视频元素和缓冲元素
             const currentVideo = this.activeVideoElement === 'main' ? this.recordedVideo : this.recordedVideoBuffer;
             const bufferVideo = this.activeVideoElement === 'main' ? this.recordedVideoBuffer : this.recordedVideo;
             
             // 检查是否已缓存
-            const isCached = this.videoStreams.has(videoFile);
             let newStream;
             
             if (isCached) {
@@ -674,11 +676,13 @@ class WebRTCChat {
                 bufferVideo.play().catch(onError);
             });
             
-            // 隐藏加载指示器
-            this.hideVideoLoading();
+            // 只有显示了加载指示器才隐藏
+            if (!isCached) {
+                this.hideVideoLoading();
+            }
             
             // 执行淡入淡出切换
-            await this.performVideoTransition(currentVideo, bufferVideo);
+            // await this.performVideoTransition(currentVideo, bufferVideo);
             
             // 更新当前视频流和活跃元素
             this.currentVideoStream = newStream;
@@ -712,6 +716,7 @@ class WebRTCChat {
             
         } catch (error) {
             this.logMessage(`平滑切换视频流失败: ${error.message}`, 'error');
+            // 确保隐藏加载指示器
             this.hideVideoLoading();
             
             // 如果切换失败，尝试回到默认视频