添加图片预览api

2026-03-13 22:07:33 +08:00
parent 8612b2dbde
commit 4be862d66b
16 changed files with 218 additions and 17 deletions
--- a/bin/util/vips.dart
+++ b/bin/util/vips.dart
@@ -0,0 +1,31 @@
+import 'dart:io';
+
+import 'package:path/path.dart';
+
+class Vips {
+  String? vipsExecuteFile;
+
+  Vips({this.vipsExecuteFile});
+
+  Future<File> generatePreview(String imgPath) async {
+    final imgOut =
+        "cache/preview/" + basename(imgPath).hashCode.toString() + ".webp";
+    final outFile = File(imgOut);
+    if (outFile.existsSync()) {
+      return outFile;
+    }
+    final result = await Process.run("vips", [
+      "webpsave",
+      imgPath,
+      imgOut,
+      "--Q",
+      "80",
+      "--smart-subsample",
+      "--strip",
+    ]);
+    if (result.exitCode == 0) {
+      return outFile;
+    }
+    throw Exception("vips image transcode failed!");
+  }
+}