Question

当我尝试将长音频片段导出到mp3时，出现错误OSError: [Errno 22] Invalid argument。最大可接受持续时间似乎在202到205分钟之间。错误和代码如下。

有没有办法能够导出超过205分钟的mp3？

compilation_audio.export(mp3_path, format = "mp3")   
File "/usr/local/lib/python3.6/site-packages/pydub/audio_segment.py", line 612, 
 in export wave_data.writeframesraw(self._data)
File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 422, 
 in writeframesraw self._file.write(data)   
File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/tempfile.py", line 483,
 in func_wrapper return func(*args, **kwargs) 
OSError: [Errno 22] Invalid argument

这是代码。我使用here中的“Fur Elise”作为初始mp3文件。

202分钟段（“Fur Elise”重复69次）保存确定，205分钟段（“Fur Elise”重复70次）导出失败。

import os, pydub
audio_name = os.path.expanduser('~/Downloads/Fur Elise.mp3') # just under 3 min long
audio = pydub.AudioSegment.from_mp3(audio_name)
for compilation_audio in (audio * 69, audio * 70):
    length_music = len(compilation_audio) / 60000.0
    print("compilation_audio duration (min): " + str((length_music)))
    mp3_path = os.path.expanduser('~/Downloads/compilation' + str(int(length_music)) + '.mp3')
    compilation_audio.export(mp3_path, format = "mp3")

如果试图保存1000多分钟长的mp3（Fur Elise * 370），则会出现另一条错误消息：

    compilation_audio.export(mp3_path, format = "mp3")
  File "/usr/local/lib/python3.6/site-packages/pydub/audio_segment.py", line 612, in export
    wave_data.writeframesraw(self._data)
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 416, in writeframesraw
    self._ensure_header_written(len(data))
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 457, in _ensure_header_written
    self._write_header(datasize)
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 474, in _write_header
    self._sampwidth * 8, b'data'))
struct.error: 'L' format requires 0 <= number <= 4294967295
Exception ignored in: <bound method Wave_write.__del__ of <wave.Wave_write object at 0x1177e7cf8>>
Traceback (most recent call last):
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 316, in __del__
    self.close()
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 434, in close
    self._ensure_header_written(0)
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 457, in _ensure_header_written
    self._write_header(datasize)
  File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/wave.py", line 474, in _write_header
    self._sampwidth * 8, b'data'))
struct.error: 'L' format requires 0 <= number <= 4294967295

Answer 1

我认为这可能是Python中的错误！

有a related issue with no solution in the pydub repo。

我们也遇到了这个问题。

此issue in PyTorch具有类似的堆栈跟踪。他们确定问题出在lseek()上。我不了解此修复程序，但可以找到似乎尚未解决的this issue in the Python bug tracker。问题似乎出在带符号的整数环绕，使得在某些情况下无法在大于2 ^ 63的文件中进行查找。

pydub mp3导出有最大长度吗？

1 个答案: