遮盖影像修改

2026-06-03 13:54:10 +08:00
parent 2969306d1e
commit c9ffa64560
2 changed files with 47 additions and 5 deletions
@@ -82,9 +82,35 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
        {
            try
            {
+                #region 方式一  有的必须在内存中，不能用这种
+                //await using var source = await sourceFactory();
+                //// 如果你是从 stream 打开
+                //var dicomFile = await DicomFile.OpenAsync(source);
+                #endregion
+
+                #region 方式二
+
                await using var source = await sourceFactory();
+
+                // 【关键修复】将 OSS 流缓冲到 MemoryStream
+                using var bufferedStream = new MemoryStream();
+
+                if (source.CanSeek)
+                {
+                    source.Position = 0;
+
+                }
+                else
+                {
+                    // 完全复制到内存流
+                    await source.CopyToAsync(bufferedStream);
+                    bufferedStream.Position = 0; // 重置位置
+                }
+
                // 如果你是从 stream 打开
-                var dicomFile = await DicomFile.OpenAsync(source);
+                var dicomFile = await DicomFile.OpenAsync(source.CanSeek ? source : bufferedStream);
+
+                #endregion

                //获取像素是否为封装形式
                var syntax = dicomFile.Dataset.InternalTransferSyntax;