为什么我的Python项目即使安装在Python库中也找不到ffmpeg？

Question

我遇到一个问题，即我的项目无法找到 ffmpeg，即使它已安装在 Python 库中。详情如下：

When running the script, I get the following error message:

D:\Python\Lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
Additionally, I receive this error message when trying to prepare the dataset:



from pydub import AudioSegment
import os


# Specify the path to ffmpeg
ffmpeg_path = "D:\\Python-code\\ffmpeg-master-latest-win64-gpl\\bin\\ffmpeg.exe"
AudioSegment.ffmpeg = ffmpeg_path

def convert_flac_to_wav(flac_file, wav_file):
    sound = AudioSegment.from_file(flac_file, format="flac")
    sound.export(wav_file, format="wav")

if __name__ == "__main__":
    # Get the current working directory
    current_dir = os.getcwd()
    print(f"Current directory: {current_dir}")

    # Get the parent directory of the current working directory
    root_dir = os.path.dirname(current_dir)
    print(f"Root directory: {root_dir}")

    # Construct the path
    voice_wavs = os.path.join(root_dir, 'data', 'voice', 'wav')
    print(f"Voice WAVs directory: {voice_wavs}")

    # Ensure the directory exists
    if not os.path.exists(voice_wavs):
        os.makedirs(voice_wavs)
        print(f"Created directory: {voice_wavs}")
    else:
        print(f"Directory exists: {voice_wavs}")

    # Get all .flac files
    # Ensure .flac files are located in the current working directory
    flac_files = [f for f in os.listdir(current_dir) if f.endswith('.flac')]
    print(f"FLAC files found: {flac_files}")

    # Convert each .flac file
    for flac_file in flac_files:
        input_flac = os.path.join(current_dir, flac_file)
        output_wav = os.path.join(current_dir, flac_file.replace('.flac', '.wav'))
        convert_flac_to_wav(input_flac, output_wav)

尽管执行了这些步骤，项目仍然报告找不到 ffmpeg。有人可以帮助我确定可能导致此问题的原因以及如何解决它吗？

Answer 1

AudioSegment

似乎在所有不好的方面都有问题。如果您只想使用 ffmpeg 将 flac 文件转换为 wav，我建议使用内置的

subprocess

模块来调用

ffmpeg.exe

。修改后的代码应如下所示：

import os
import subprocess

# Specify the path to ffmpeg
ffmpeg_path = r"D:\Python-code\ffmpeg-master-latest-win64-gpl\bin\ffmpeg.exe"

def convert_flac_to_wav(flac_file, wav_file):
    subprocess.call([ffmpeg_path, '-i', flac_file, wav_file])

if __name__ == "__main__":
    # Unchanged