fd

fixed_app.py

@@ -99,8 +99,30 @@ def decode_audio(audio_base64: str) -> str:
             logger.error(f"Base64解码失败: {e}")
             raise HTTPException(status_code=400, detail=f"Invalid base64 data: {str(e)}")
         
-        # 创建临时文件，确保有正确的权限
-        with tempfile.NamedTemporaryFile(delete=False, suffix=".wav", mode="wb") as temp_file:
+        # 检测音频格式
+        file_extension = ".wav"  # 默认
+        if len(audio_data) >= 12:
+            header = audio_data[:12]
+            if header[:4] == b'RIFF' and header[8:12] == b'WAVE':
+                file_extension = ".wav"
+                logger.info("检测到WAV格式")
+            elif b'ftyp' in header and b'M4A' in header:
+                file_extension = ".m4a"
+                logger.info("检测到M4A格式")
+            elif header[:3] == b'ID3' or header[:2] == b'\xff\xfb':
+                file_extension = ".mp3"
+                logger.info("检测到MP3格式")
+            elif header[:4] == b'OggS':
+                file_extension = ".ogg"
+                logger.info("检测到OGG格式")
+            elif header[:4] == b'fLaC':
+                file_extension = ".flac"
+                logger.info("检测到FLAC格式")
+            else:
+                logger.warning(f"未知音频格式，文件头: {header.hex()}")
+        
+        # 创建临时文件，使用检测到的扩展名
+        with tempfile.NamedTemporaryFile(delete=False, suffix=file_extension, mode="wb") as temp_file:
             temp_file.write(audio_data)
             temp_path = temp_file.name
         
@@ -111,7 +133,7 @@ def decode_audio(audio_base64: str) -> str:
         if not os.path.exists(temp_path):
             raise HTTPException(status_code=500, detail="Failed to create temporary audio file")
         
-        logger.info(f"音频文件已保存到: {temp_path}, 大小: {os.path.getsize(temp_path)} 字节")
+        logger.info(f"音频文件已保存到: {temp_path}, 大小: {os.path.getsize(temp_path)} 字节, 格式: {file_extension}")
         return temp_path
     except HTTPException:
         raise