之前用QQ音乐下载音乐到本地来听，发现是OGG的格式，会发现有一些兼容性的问题，在有一些设备上没有兼容的软件导致听不了。我找了找，发现网络上有挺多这种开源的网站能够免费帮助你转换格式的~ 但是受限于网络，想要转换的歌曲一多，就特别慢或者就是收费了。
于是我用GPT帮我写了一个OGG2MP3.py文件，非常好用，会比网站上传再下载要很快多因为都是本地用运行，也会更安全一些，代码如下，你会用话就直接复制到本的编辑器中运行就好。然后我的Github上面有更详细的说明和使用的方法。
I used to download music using QQ Music and listen to it offline, but I noticed that the downloaded files were in OGG format, which caused compatibility issues — some devices didn’t have the right software to play them. I searched online and found quite a few open-source websites that offer free format conversion, but due to network limitations, converting multiple songs was either very slow or required payment.
So, I asked GPT to help me write a script called ogg2mp3.py, and it works really well and It’s much faster than uploading and downloading websites because it’s all running locally, and it’s a little bit more secure! You can just copy the code below into your editor and run it — if you know how to use Python, it’s super easy.
I’ve also posted a more detailed explanation on my GitHub.
#!/usr/bin/env python3
import argparse
import subprocess
import sys
from pathlib import Path
def convert_file(src: Path, dst: Path, bitrate: str=None, vbr: int=None, overwrite: bool=False):
dst.parent.mkdir(parents=True, exist_ok=True)
if dst.exists() and not overwrite:
print(f"Skip (exists): {dst}")
return
# 基本 ffmpeg 命令：输入 src，输出 dst，拷贝元数据
cmd = ["ffmpeg", "-y" if overwrite else "-n", "-i", str(src), "-map_metadata", "0"]
# 选择编码参数：VBR 优先，没给就用 CBR 比特率
if vbr is not None:
# LAME VBR 质量等级 0(最好)-9(最差)。常用 2 或 3
cmd += ["-q:a", str(vbr)]
elif bitrate:
# CBR 比特率，如 192k / 256k / 320k
cmd += ["-b:a", bitrate]
else:
# 默认：中等质量
cmd += ["-q:a", "2"]
# 强制 mp3 编码器
cmd += ["-codec:a", "libmp3lame", str(dst)]
print(f"Converting: {src} -> {dst}")
try:
subprocess.run(cmd, check=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
print(f"[ERROR] Failed to convert {src}:\n{e.stdout.decode('utf-8', errors='ignore')}", file=sys.stderr)
def is_ogg(p: Path):
return p.suffix.lower() in {".ogg", ".oga", ".ogv"} # .ogv 也常是 Ogg 容器
def main():
ap = argparse.ArgumentParser(description="Convert OGG to MP3 (single file or whole directory).")
ap.add_argument("input", type=Path, help="OGG file or a directory containing OGG files")
ap.add_argument("-o", "--output", type=Path, default=None, help="Output file or directory")
ap.add_argument("--bitrate", help="CBR bitrate for MP3, e.g. 192k / 256k / 320k")
ap.add_argument("--vbr", type=int, help="VBR quality 0(best)-9(worst). Example: --vbr 2")
ap.add_argument("--overwrite", action="store_true", help="Overwrite existing output files")
args = ap.parse_args()
if not args.input.exists():
print(f"[ERROR] Input not found: {args.input}", file=sys.stderr)
sys.exit(1)
# 参数合法性
if args.vbr is not None and not (0 <= args.vbr <= 9):
print("[ERROR] --vbr must be between 0 (best) and 9 (worst).", file=sys.stderr)
sys.exit(1)
if args.input.is_file():
if not is_ogg(args.input):
print(f"[ERROR] Not an OGG file: {args.input}", file=sys.stderr)
sys.exit(1)
# 输出路径
if args.output:
out_path = args.output
if out_path.is_dir():
out_path = out_path / (args.input.stem + ".mp3")
else:
out_path = args.input.with_suffix(".mp3")
convert_file(args.input, out_path, args.bitrate, args.vbr, args.overwrite)
else:
# 目录批量转换
in_dir = args.input
out_dir = args.output if args.output else in_dir
if args.output and args.output.is_file():
print("[ERROR] Output must be a directory when input is a directory.", file=sys.stderr)
sys.exit(1)
ogg_files = [p for p in in_dir.rglob("*") if p.is_file() and is_ogg(p)]
if not ogg_files:
print("No OGG files found.")
return
for src in ogg_files:
rel = src.relative_to(in_dir)
dst = (out_dir / rel).with_suffix(".mp3")
convert_file(src, dst, args.bitrate, args.vbr, args.overwrite)
if __name__ == "__main__":
main()
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