50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
import subprocess
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from pathlib import Path
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def convert_mp4_to_wav(
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input_mp4: str,
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ffmpeg_path: str = r"d:\ffmpeg\ffmpeg.exe",
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output_path: str = None # 新增输出路径参数
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):
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"""
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将指定MP4文件转换为WAV格式
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参数：
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input_mp4 - 输入的MP4文件路径
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ffmpeg_path - FFmpeg可执行文件路径
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output_path - 可选输出路径（可指定完整路径或目录）
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"""
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input_path = Path(input_mp4)
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# 处理输出路径逻辑
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if output_path:
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output_path = Path(output_path)
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if output_path.is_dir(): # 如果传入的是目录
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output_path = output_path / f"{input_path.stem}.wav"
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output_path.parent.mkdir(parents=True, exist_ok=True)
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else:
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# 默认输出到wav目录
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output_dir = Path("wav")
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output_dir.mkdir(exist_ok=True)
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output_path = output_dir / f"{input_path.stem}.wav"
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cmd = [
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ffmpeg_path,
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"-i", str(input_path),
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"-acodec", "pcm_s16le",
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"-ac", "1",
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"-ar", "16000",
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"-y",
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str(output_path) # 使用处理后的输出路径
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]
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try:
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# 执行转换命令
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subprocess.run(cmd, check=True, capture_output=True)
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print(f"转换成功：{input_path} -> {output_path}")
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except subprocess.CalledProcessError as e:
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print(f"转换失败：{e.stderr.decode('gbk')}")
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except FileNotFoundError:
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print(f"FFmpeg未找到，请确认路径是否正确：{ffmpeg_path}")
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