Update app.py

app.py

@@ -17,7 +17,8 @@ def audio_overlay(audio1, audio2, save_filename):
     audio_raw2 = audio_raw2[:min_length]
 
     overlayed_audio = audio_raw1.overlay(audio_raw2)
-    overlayed_audio.export("/tmp/" + save_filename, format="mp3")
+    save_path = os.path.join("/tmp", save_filename)
+    overlayed_audio.export(save_path, format="mp3")
 
 # 任务队列和状态存储
 tasks = {}
@@ -48,10 +49,10 @@ def process_audio_overlay(task_id, audio_url1, audio_url2):
             f.write(response2.content)
 
         # 执行音频合并操作
-        audio = audio_overlay("/tmp/" + audio_filename1, "/tmp/" + audio_filename2, audio_filename1 + "_with_" + audio_filename2 + "_overlayed.mp3")
+        audio = audio_overlay("/tmp/" + audio_filename1, "/tmp/" + audio_filename2, os.path.join("/tmp", os.path.join("/tmp", audio_filename1 + "_with_" + audio_filename2 + "_overlayed.mp3")))
 
         # 提供文件的永久直链
-        result_audio_url = "/download/" + audio_filename1 + "_with_" + audio_filename2 + "_overlayed.mp3"
+        result_audio_url = "/download/" + os.path.join("/tmp", os.path.join("/tmp", audio_filename1 + "_with_" + audio_filename2 + "_overlayed.mp3"))
 
         # 更新任务状态
         tasks[task_id] = {