fix: Fixed issue #1199 (#1200)

api.py

@@ -339,8 +339,46 @@ def pack_audio(audio_bytes, data, rate):
 
 
 def pack_ogg(audio_bytes, data, rate):
-    with sf.SoundFile(audio_bytes, mode='w', samplerate=rate, channels=1, format='ogg') as audio_file:
-        audio_file.write(data)
+    # Author: AkagawaTsurunaki
+    # Issue:
+    #   Stack overflow probabilistically occurs
+    #   when the function `sf_writef_short` of `libsndfile_64bit.dll` is called
+    #   using the Python library `soundfile`
+    # Note:
+    #   This is an issue related to `libsndfile`, not this project itself.
+    #   It happens when you generate a large audio tensor (about 499804 frames in my PC)
+    #   and try to convert it to an ogg file.
+    # Related:
+    #   https://github.com/RVC-Boss/GPT-SoVITS/issues/1199
+    #   https://github.com/libsndfile/libsndfile/issues/1023
+    #   https://github.com/bastibe/python-soundfile/issues/396
+    # Suggestion:
+    #   Or split the whole audio data into smaller audio segment to avoid stack overflow?
+
+    def handle_pack_ogg():
+        with sf.SoundFile(audio_bytes, mode='w', samplerate=rate, channels=1, format='ogg') as audio_file:
+            audio_file.write(data)
+
+    import threading
+    # See: https://docs.python.org/3/library/threading.html
+    # The stack size of this thread is at least 32768
+    # If stack overflow error still occurs, just modify the `stack_size`.
+    # stack_size = n * 4096, where n should be a positive integer.
+    # Here we chose n = 4096.
+    stack_size = 4096 * 4096
+    try:
+        threading.stack_size(stack_size)
+        pack_ogg_thread = threading.Thread(target=handle_pack_ogg)
+        pack_ogg_thread.start()
+        pack_ogg_thread.join()
+    except RuntimeError as e:
+        # If changing the thread stack size is unsupported, a RuntimeError is raised.
+        print("RuntimeError: {}".format(e))
+        print("Changing the thread stack size is unsupported.")
+    except ValueError as e:
+        # If the specified stack size is invalid, a ValueError is raised and the stack size is unmodified.
+        print("ValueError: {}".format(e))
+        print("The specified stack size is invalid.")
 
     return audio_bytes