新增web版视频下载功能

Assets/WebGLDownLoadWord/Plugins/WebGLDownloadFile.jslib

@@ -23,5 +23,11 @@ mergeInto(LibraryManager.library, {
             });
         } else {
         }
+    },
+    WebGLDownloadVideo: function(ptr,fileName) {
+ 		var url = UTF8ToString(ptr); 		
+		var name = UTF8ToString(fileName);
+		DownloadVideoFromUrl(url,name);
+
     }
 });

Assets/WebGLDownLoadWord/Scripts/DownLoadWord/WebGLDownLoadFileScripts/WebGLDownLoadFile.cs

@@ -16,6 +16,11 @@ public class WebGLDownLoadFile : MonoSingleton<WebGLDownLoadFile>
     [DllImport("__Internal")]
     private static extern void WebGLDownloadWord(byte[] array, int size, string reportjson);
 
+    [DllImport("__Internal")]
+    private static extern void WebGLDownloadVideo(string url, string fileName = "实验视频.mp4");
+
+
+
     /// <summary>
     /// 下载Word 方法
     /// </summary>
@@ -63,4 +68,9 @@ public class WebGLDownLoadFile : MonoSingleton<WebGLDownLoadFile>
         WebGLDownloadWord(bytes, bytes.Length, reportjson);
     }
 
+    public void DownloadVideo(string url, string fileName = "实验视频.mp4")
+    {
+        WebGLDownloadVideo(url, fileName);
+    }
+
 }

Assets/WebGLTemplates/MyIndex/index.html

@@ -356,6 +356,51 @@
         });
 
     }
+
+// 添加视频下载功能
+function HtmlDownloadVideo(bytes, fileName) {
+  // 创建Blob对象，指定视频MIME类型
+  var blob = new Blob([bytes], { type: 'video/mp4' });
+
+  // 创建下载链接
+  var url = window.URL.createObjectURL(blob);
+  var a = document.createElement('a');
+  a.href = url;
+  a.download = fileName;
+
+  // 触发下载
+  document.body.appendChild(a);
+  a.click();
+
+  // 清理资源
+  setTimeout(() => {
+    document.body.removeChild(a);
+    window.URL.revokeObjectURL(url);
+  }, 100);
+}
+
+// 如果需要从URL加载视频并下载
+function DownloadVideoFromUrl(videoUrl, fileName) {
+  // 使用fetch API获取视频数据
+  fetch(videoUrl)
+    .then(response => {
+      if (!response.ok) {
+        throw new Error(`HTTP error! status: ${response.status}`);
+      }
+      return response.arrayBuffer();
+    })
+    .then(bytes => {
+      // 调用下载函数
+      HtmlDownloadVideo(bytes, fileName);
+    })
+    .catch(error => {
+      console.error('error:', error);
+      unityShowBanner('error: ' + error.message, 'error');
+    });
+}
+
+
+
       document.body.appendChild(script);
     </script>
 </body>