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一个简易的Bilibili视频下载器,基于逆向接口

Project description

oh-my-bilibili

一个简洁的 Bilibili 视频信息获取与下载库。

支持输入:

  • BV
  • AV
  • B 站视频 URL
  • b23.tv 短链

支持行为:

  • 只获取视频信息(标题、简介、UP、时长等)
  • 下载视频到指定路径(目录或文件路径)

安装

uv sync

构建指南

# 先同步依赖
uv sync

# 构建 sdist + wheel
uv build

构建产物位于 dist/ 目录:

  • *.tar.gz(source distribution)
  • *.whl(wheel)

快速开始

from oh_my_bilibili import fetch

# 1) 仅获取视频信息
info = fetch("BV1xx411c7mD", cookie="")
print(info.title)
print(info.desc)
print(info.url)

# 2) 下载到目录(自动命名文件)
result = fetch(
    "https://www.bilibili.com/video/BV1xx411c7mD",
    cookie="SESSDATA=...",
    save_path="./downloads",
)
print(result.path)
print(result.quality_label)

API

fetch(video, save_path=None, cookie="", prefer_quality=80, timeout=30.0, overwrite=True)

  • save_path is None 时:返回 VideoInfo
  • save_path 有值时:返回 DownloadResult

get_video_info(video, cookie="", timeout=30.0)

返回 VideoInfo

download(video, save_path, cookie="", prefer_quality=80, timeout=30.0, overwrite=True)

返回 DownloadResult

ffmpeg 依赖

Bilibili 通常返回 DASH 分离流(视频流 + 音频流),需要本地 ffmpeg 进行合并。
若未安装 ffmpeg,会抛出 FFmpegNotFoundError

异常

  • InvalidVideoIdentifierError: 输入无法解析为 BV/AV/URL
  • ApiResponseError: B 站接口失败或返回异常
  • DownloadError: 下载或处理流程失败
  • FFmpegError / FFmpegNotFoundError: ffmpeg 合并阶段失败

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