__init__.py 文件源码

def write_wav(self, video_obj, target_wav_file):
        '''
        Writes the audio stream of a video as a wav suitable as input to HTK

        ----------
        video_obj: a moviepy VideoFileClip

        target_wav_file: path to write the wav file to

        Returns
        -------
        None

        '''
        assert isinstance(video_obj, VideoFileClip), "video needs to be a instance of VideoFileClip"

        # Write audio stream of video to file in the desired format
        video_obj.audio.write_audiofile(target_wav_file, fps=16000,  # Set fps to 16k
                                        codec='pcm_s16le',
                                        ffmpeg_params=['-ac', '1'])  # Convert to mono