Commit 56fe133

@@ -44,6 +44,7 @@ async def ytdlp_download(
         "summary": "summary",
     }
     """
+    placeholder = {"video_path": Path("/non-exist"), "audio_path": Path("/non-exist"), "thumb": None}
     ytdlp_opts = await get_ytdlp_opts(url=url, platform=platform, proxy=proxy, video=true(kwargs.get("ytdlp_download_video")))
     if kwargs.get("show_progress"):
         loop = asyncio.get_running_loop()
@@ -58,12 +59,12 @@ async def ytdlp_download(
             await modify_progress(del_status=True, **kwargs)
             raise ProxyError(ytdlp_error)
         await modify_progress(text=ytdlp_error, force_update=True, **kwargs)
-        return {}
+        return placeholder
     await modify_progress(text=f"⏬正在下载:\n{info['summary']}", force_update=True, **kwargs)
     ytdlp_error = await download_video_async(json_path, ytdlp_opts)
     if ytdlp_error:
         await modify_progress(text=ytdlp_error, force_update=True, **kwargs)
-        return {}
+        return placeholder
     msg = f"✅下载成功:\n{info['summary']}"
     logger.success(f"{msg!r}")
     info["thumb"] = find_thumbnail(info["video_path"], info["audio_path"])

@@ -104,7 +104,7 @@ async def preview_ytdlp(
         return []
 
     info = await ytdlp_download(url, proxy=proxy, platform=platform, ytdlp_download_video=ytdlp_download_video, **kwargs)
-    if not info:
+    if not (info["video_path"].is_file() or info["audio_path"].is_file()):
         return []
     info |= vinfo  # merge video info
     captions = await generate_captions(