优化

frontend/app/web-gold/src/views/dh/Video.vue

@@ -12,6 +12,7 @@ import { InboxOutlined, SoundOutlined, LoadingOutlined } from '@ant-design/icons
 import { VoiceService } from '@/api/voice'
 import { MaterialService } from '@/api/material'
 import { createDigitalHumanTask, getDigitalHumanTask, cancelTask, retryTask } from '@/api/digitalHuman'
+import { extractVideoCover } from '@/utils/video-cover'
 
 // 导入 voiceStore 用于获取用户音色
 import { useVoiceCopyStore } from '@/stores/voiceCopy'
@@ -381,8 +382,22 @@ const handleVideoUpload = async (file) => {
   try {
     uploadedVideo.value = await toDataURL(file)
     uploadedVideoFile.value = file // 保存文件对象
+
+    // 提取视频封面
+    try {
+      const cover = await extractVideoCover(file, {
+        maxWidth: 800,
+        quality: 0.8
+      })
+      uploadedVideoFile.value.coverBase64 = cover.base64 // 保存封面到文件对象
+    } catch (coverError) {
+      console.warn('视频封面提取失败:', coverError)
+      // 封面提取失败不影响主流程
+    }
+
     message.success('视频上传成功')
   } catch (error) {
+    console.error('视频上传失败:', error)
     message.error('视频上传失败')
   }
   return false
@@ -489,7 +504,9 @@ const generateVideo = async () => {
 // 上传视频文件到后端
 const uploadVideoFile = async (file) => {
   try {
-    const res = await MaterialService.uploadFile(file, 'video')
+    // 获取封面base64
+    const coverBase64 = file.coverBase64 || null
+    const res = await MaterialService.uploadFile(file, 'video', coverBase64)
     if (res.code === 0) {
       return res.data  // res.data就是文件ID
     } else {