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docs/zh-CN/skills/videodb/reference/api-reference.md
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# 完整 API 参考
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VideoDB 技能参考材料。关于使用指南和工作流选择，请从 [../SKILL.md](../SKILL.md) 开始。
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## 连接
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```python
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import videodb
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conn = videodb.connect(
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api_key="your-api-key", # or set VIDEO_DB_API_KEY env var
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base_url=None, # custom API endpoint (optional)
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)
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```
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**返回:** `Connection` 对象
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### 连接方法
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| 方法 | 返回 | 描述 |
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|--------|---------|-------------|
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| `conn.get_collection(collection_id="default")` | `Collection` | 获取集合（若无 ID 则获取默认集合） |
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| `conn.get_collections()` | `list[Collection]` | 列出所有集合 |
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| `conn.create_collection(name, description, is_public=False)` | `Collection` | 创建新集合 |
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| `conn.update_collection(id, name, description)` | `Collection` | 更新集合 |
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| `conn.check_usage()` | `dict` | 获取账户使用统计 |
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| `conn.upload(source, media_type, name, ...)` | `Video\|Audio\|Image` | 上传到默认集合 |
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| `conn.record_meeting(meeting_url, bot_name, ...)` | `Meeting` | 录制会议 |
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| `conn.create_capture_session(...)` | `CaptureSession` | 创建捕获会话（见 [capture-reference.md](capture-reference.md)） |
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| `conn.youtube_search(query, result_threshold, duration)` | `list[dict]` | 搜索 YouTube |
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| `conn.transcode(source, callback_url, mode, ...)` | `str` | 转码视频（返回作业 ID） |
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| `conn.get_transcode_details(job_id)` | `dict` | 获取转码作业状态和详情 |
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| `conn.connect_websocket(collection_id)` | `WebSocketConnection` | 连接到 WebSocket（见 [capture-reference.md](capture-reference.md)） |
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### 转码
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使用自定义分辨率、质量和音频设置从 URL 转码视频。处理在服务器端进行——无需本地 ffmpeg。
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```python
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from videodb import TranscodeMode, VideoConfig, AudioConfig
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job_id = conn.transcode(
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source="https://example.com/video.mp4",
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callback_url="https://example.com/webhook",
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mode=TranscodeMode.economy,
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video_config=VideoConfig(resolution=720, quality=23),
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audio_config=AudioConfig(mute=False),
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)
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```
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#### transcode 参数
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| 参数 | 类型 | 默认值 | 描述 |
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|-----------|------|---------|-------------|
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| `source` | `str` | 必需 | 要转码的视频 URL（最好是可下载的 URL） |
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| `callback_url` | `str` | 必需 | 转码完成时接收回调的 URL |
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| `mode` | `TranscodeMode` | `TranscodeMode.economy` | 转码速度：`economy` 或 `lightning` |
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| `video_config` | `VideoConfig` | `VideoConfig()` | 视频编码设置 |
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| `audio_config` | `AudioConfig` | `AudioConfig()` | 音频编码设置 |
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返回一个作业 ID (`str`)。使用 `conn.get_transcode_details(job_id)` 来检查作业状态。
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```python
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details = conn.get_transcode_details(job_id)
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```
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#### VideoConfig
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```python
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from videodb import VideoConfig, ResizeMode
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config = VideoConfig(
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resolution=720, # Target resolution height (e.g. 480, 720, 1080)
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quality=23, # Encoding quality (lower = better, default 23)
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framerate=30, # Target framerate
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aspect_ratio="16:9", # Target aspect ratio
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resize_mode=ResizeMode.crop, # How to fit: crop, fit, or pad
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)
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```
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| 字段 | 类型 | 默认值 | 描述 |
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|-------|------|---------|-------------|
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| `resolution` | `int\|None` | `None` | 目标分辨率高度（像素） |
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| `quality` | `int` | `23` | 编码质量（值越低，质量越高） |
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| `framerate` | `int\|None` | `None` | 目标帧率 |
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| `aspect_ratio` | `str\|None` | `None` | 目标宽高比（例如 `"16:9"`, `"9:16"`） |
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| `resize_mode` | `str` | `ResizeMode.crop` | 调整大小策略：`crop`, `fit`, 或 `pad` |
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#### AudioConfig
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```python
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from videodb import AudioConfig
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config = AudioConfig(mute=False)
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```
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| 字段 | 类型 | 默认值 | 描述 |
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|-------|------|---------|-------------|
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| `mute` | `bool` | `False` | 静音音轨 |
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## 集合
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```python
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coll = conn.get_collection()
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```
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### 集合方法
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| 方法 | 返回 | 描述 |
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|--------|---------|-------------|
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| `coll.get_videos()` | `list[Video]` | 列出所有视频 |
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| `coll.get_video(video_id)` | `Video` | 获取特定视频 |
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| `coll.get_audios()` | `list[Audio]` | 列出所有音频 |
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| `coll.get_audio(audio_id)` | `Audio` | 获取特定音频 |
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| `coll.get_images()` | `list[Image]` | 列出所有图像 |
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| `coll.get_image(image_id)` | `Image` | 获取特定图像 |
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| `coll.upload(url=None, file_path=None, media_type=None, name=None)` | `Video\|Audio\|Image` | 上传媒体 |
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| `coll.search(query, search_type, index_type, score_threshold, namespace, scene_index_id, ...)` | `SearchResult` | 在集合中搜索（仅语义搜索；关键词和场景搜索会引发 `NotImplementedError`） |
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| `coll.generate_image(prompt, aspect_ratio="1:1")` | `Image` | 使用 AI 生成图像 |
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| `coll.generate_video(prompt, duration=5)` | `Video` | 使用 AI 生成视频 |
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| `coll.generate_music(prompt, duration=5)` | `Audio` | 使用 AI 生成音乐 |
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| `coll.generate_sound_effect(prompt, duration=2)` | `Audio` | 生成音效 |
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| `coll.generate_voice(text, voice_name="Default")` | `Audio` | 从文本生成语音 |
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| `coll.generate_text(prompt, model_name="basic", response_type="text")` | `dict` | LLM 文本生成——通过 `["output"]` 访问结果 |
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| `coll.dub_video(video_id, language_code)` | `Video` | 将视频配音为另一种语言 |
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| `coll.record_meeting(meeting_url, bot_name, ...)` | `Meeting` | 录制实时会议 |
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| `coll.create_capture_session(...)` | `CaptureSession` | 创建捕获会话（见 [capture-reference.md](capture-reference.md)） |
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| `coll.get_capture_session(...)` | `CaptureSession` | 检索捕获会话（见 [capture-reference.md](capture-reference.md)） |
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| `coll.connect_rtstream(url, name, ...)` | `RTStream` | 连接到实时流（见 [rtstream-reference.md](rtstream-reference.md)） |
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| `coll.make_public()` | `None` | 使集合公开 |
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| `coll.make_private()` | `None` | 使集合私有 |
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| `coll.delete_video(video_id)` | `None` | 删除视频 |
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| `coll.delete_audio(audio_id)` | `None` | 删除音频 |
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| `coll.delete_image(image_id)` | `None` | 删除图像 |
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| `coll.delete()` | `None` | 删除集合 |
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### 上传参数
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```python
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video = coll.upload(
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url=None, # Remote URL (HTTP, YouTube)
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file_path=None, # Local file path
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media_type=None, # "video", "audio", or "image" (auto-detected if omitted)
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name=None, # Custom name for the media
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description=None, # Description
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callback_url=None, # Webhook URL for async notification
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)
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```
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## 视频对象
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```python
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video = coll.get_video(video_id)
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```
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### 视频属性
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| 属性 | 类型 | 描述 |
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|----------|------|-------------|
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| `video.id` | `str` | 唯一视频 ID |
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| `video.collection_id` | `str` | 父集合 ID |
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| `video.name` | `str` | 视频名称 |
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| `video.description` | `str` | 视频描述 |
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| `video.length` | `float` | 时长（秒） |
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| `video.stream_url` | `str` | 默认流 URL |
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| `video.player_url` | `str` | 播放器嵌入 URL |
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| `video.thumbnail_url` | `str` | 缩略图 URL |
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### 视频方法
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| 方法 | 返回 | 描述 |
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|--------|---------|-------------|
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| `video.generate_stream(timeline=None)` | `str` | 生成流 URL（可选的 `[(start, end)]` 元组时间线） |
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| `video.play()` | `str` | 在浏览器中打开流，返回播放器 URL |
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| `video.index_spoken_words(language_code=None, force=False)` | `None` | 为语音搜索建立索引。使用 `force=True` 在已建立索引时跳过。 |
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| `video.index_scenes(extraction_type, prompt, extraction_config, metadata, model_name, name, scenes, callback_url)` | `str` | 索引视觉场景（返回 scene\_index\_id） |
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| `video.index_visuals(prompt, batch_config, ...)` | `str` | 索引视觉内容（返回 scene\_index\_id） |
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| `video.index_audio(prompt, model_name, ...)` | `str` | 使用 LLM 索引音频（返回 scene\_index\_id） |
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| `video.get_transcript(start=None, end=None)` | `list[dict]` | 获取带时间戳的转录稿 |
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| `video.get_transcript_text(start=None, end=None)` | `str` | 获取完整转录文本 |
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| `video.generate_transcript(force=None)` | `dict` | 生成转录稿 |
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| `video.translate_transcript(language, additional_notes)` | `list[dict]` | 翻译转录稿 |
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| `video.search(query, search_type, index_type, filter, **kwargs)` | `SearchResult` | 在视频内搜索 |
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| `video.add_subtitle(style=SubtitleStyle())` | `str` | 添加字幕（返回流 URL） |
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| `video.generate_thumbnail(time=None)` | `str\|Image` | 生成缩略图 |
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| `video.get_thumbnails()` | `list[Image]` | 获取所有缩略图 |
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| `video.extract_scenes(extraction_type, extraction_config)` | `SceneCollection` | 提取场景 |
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| `video.reframe(start, end, target, mode, callback_url)` | `Video\|None` | 调整视频宽高比 |
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| `video.clip(prompt, content_type, model_name)` | `str` | 根据提示生成剪辑（返回流 URL） |
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| `video.insert_video(video, timestamp)` | `str` | 在时间戳处插入视频 |
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| `video.download(name=None)` | `dict` | 下载视频 |
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| `video.delete()` | `None` | 删除视频 |
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### 调整宽高比
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将视频转换为不同的宽高比，可选智能对象跟踪。处理在服务器端进行。
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> **警告：** 调整宽高比是缓慢的服务器端操作。对于长视频可能需要几分钟，并可能超时。始终使用 `start`/`end` 来限制片段，或传递 `callback_url` 进行异步处理。
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```python
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from videodb import ReframeMode
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# Always prefer short segments to avoid timeouts:
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reframed = video.reframe(start=0, end=60, target="vertical", mode=ReframeMode.smart)
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# Async reframe for full-length videos (returns None, result via webhook):
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video.reframe(target="vertical", callback_url="https://example.com/webhook")
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# Custom dimensions
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reframed = video.reframe(start=0, end=60, target={"width": 1080, "height": 1080})
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```
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#### reframe 参数
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| 参数 | 类型 | 默认值 | 描述 |
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|-----------|------|---------|-------------|
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| `start` | `float\|None` | `None` | 开始时间（秒）（None = 开始） |
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| `end` | `float\|None` | `None` | 结束时间（秒）（None = 视频结束） |
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| `target` | `str\|dict` | `"vertical"` | 预设字符串（`"vertical"`, `"square"`, `"landscape"`）或 `{"width": int, "height": int}` |
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| `mode` | `str` | `ReframeMode.smart` | `"simple"`（中心裁剪）或 `"smart"`（对象跟踪） |
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| `callback_url` | `str\|None` | `None` | 异步通知的 Webhook URL |
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当未提供 `callback_url` 时返回 `Video` 对象，否则返回 `None`。
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## 音频对象
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|
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```python
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audio = coll.get_audio(audio_id)
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```
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### 音频属性
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|
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| 属性 | 类型 | 描述 |
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|----------|------|-------------|
|
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| `audio.id` | `str` | 唯一音频 ID |
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| `audio.collection_id` | `str` | 父集合 ID |
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| `audio.name` | `str` | 音频名称 |
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| `audio.length` | `float` | 时长（秒） |
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### 音频方法
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| 方法 | 返回 | 描述 |
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|--------|---------|-------------|
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| `audio.generate_url()` | `str` | 生成用于播放的签名 URL |
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| `audio.get_transcript(start=None, end=None)` | `list[dict]` | 获取带时间戳的转录稿 |
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| `audio.get_transcript_text(start=None, end=None)` | `str` | 获取完整转录文本 |
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||||
| `audio.generate_transcript(force=None)` | `dict` | 生成转录稿 |
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||||
| `audio.delete()` | `None` | 删除音频 |
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||||
## 图像对象
|
||||
|
||||
```python
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image = coll.get_image(image_id)
|
||||
```
|
||||
|
||||
### 图像属性
|
||||
|
||||
| 属性 | 类型 | 描述 |
|
||||
|----------|------|-------------|
|
||||
| `image.id` | `str` | 唯一图像 ID |
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||||
| `image.collection_id` | `str` | 父集合 ID |
|
||||
| `image.name` | `str` | 图像名称 |
|
||||
| `image.url` | `str\|None` | 图像 URL（对于生成的图像可能为 `None`——请改用 `generate_url()`） |
|
||||
|
||||
### 图像方法
|
||||
|
||||
| 方法 | 返回 | 描述 |
|
||||
|--------|---------|-------------|
|
||||
| `image.generate_url()` | `str` | 生成签名 URL |
|
||||
| `image.delete()` | `None` | 删除图像 |
|
||||
|
||||
## 时间线与编辑器
|
||||
|
||||
### 时间线
|
||||
|
||||
```python
|
||||
from videodb.timeline import Timeline
|
||||
|
||||
timeline = Timeline(conn)
|
||||
```
|
||||
|
||||
| 方法 | 返回 | 描述 |
|
||||
|--------|---------|-------------|
|
||||
| `timeline.add_inline(asset)` | `None` | 在主轨道上顺序添加 `VideoAsset` |
|
||||
| `timeline.add_overlay(start, asset)` | `None` | 在时间戳处叠加 `AudioAsset`、`ImageAsset` 或 `TextAsset` |
|
||||
| `timeline.generate_stream()` | `str` | 编译并获取流 URL |
|
||||
|
||||
### 资产类型
|
||||
|
||||
#### VideoAsset
|
||||
|
||||
```python
|
||||
from videodb.asset import VideoAsset
|
||||
|
||||
asset = VideoAsset(
|
||||
asset_id=video.id,
|
||||
start=0, # trim start (seconds)
|
||||
end=None, # trim end (seconds, None = full)
|
||||
)
|
||||
```
|
||||
|
||||
#### AudioAsset
|
||||
|
||||
```python
|
||||
from videodb.asset import AudioAsset
|
||||
|
||||
asset = AudioAsset(
|
||||
asset_id=audio.id,
|
||||
start=0,
|
||||
end=None,
|
||||
disable_other_tracks=True, # mute original audio when True
|
||||
fade_in_duration=0, # seconds (max 5)
|
||||
fade_out_duration=0, # seconds (max 5)
|
||||
)
|
||||
```
|
||||
|
||||
#### ImageAsset
|
||||
|
||||
```python
|
||||
from videodb.asset import ImageAsset
|
||||
|
||||
asset = ImageAsset(
|
||||
asset_id=image.id,
|
||||
duration=None, # display duration (seconds)
|
||||
width=100, # display width
|
||||
height=100, # display height
|
||||
x=80, # horizontal position (px from left)
|
||||
y=20, # vertical position (px from top)
|
||||
)
|
||||
```
|
||||
|
||||
#### TextAsset
|
||||
|
||||
```python
|
||||
from videodb.asset import TextAsset, TextStyle
|
||||
|
||||
asset = TextAsset(
|
||||
text="Hello World",
|
||||
duration=5,
|
||||
style=TextStyle(
|
||||
fontsize=24,
|
||||
fontcolor="black",
|
||||
boxcolor="white", # background box colour
|
||||
alpha=1.0,
|
||||
font="Sans",
|
||||
text_align="T", # text alignment within box
|
||||
),
|
||||
)
|
||||
```
|
||||
|
||||
#### CaptionAsset（编辑器 API）
|
||||
|
||||
CaptionAsset 属于编辑器 API，它有自己的时间线、轨道和剪辑系统：
|
||||
|
||||
```python
|
||||
from videodb.editor import CaptionAsset, FontStyling
|
||||
|
||||
asset = CaptionAsset(
|
||||
src="auto", # "auto" or base64 ASS string
|
||||
font=FontStyling(name="Clear Sans", size=30),
|
||||
primary_color="&H00FFFFFF",
|
||||
)
|
||||
```
|
||||
|
||||
完整的 CaptionAsset 用法请见 [editor.md](../../../../../skills/videodb/reference/editor.md#caption-overlays) 中的编辑器 API。
|
||||
|
||||
## 视频搜索参数
|
||||
|
||||
```python
|
||||
results = video.search(
|
||||
query="your query",
|
||||
search_type=SearchType.semantic, # semantic, keyword, or scene
|
||||
index_type=IndexType.spoken_word, # spoken_word or scene
|
||||
result_threshold=None, # max number of results
|
||||
score_threshold=None, # minimum relevance score
|
||||
dynamic_score_percentage=None, # percentage of dynamic score
|
||||
scene_index_id=None, # target a specific scene index (pass via **kwargs)
|
||||
filter=[], # metadata filters for scene search
|
||||
)
|
||||
```
|
||||
|
||||
> **注意：** `filter` 是 `video.search()` 中的一个显式命名参数。`scene_index_id` 通过 `**kwargs` 传递给 API。
|
||||
>
|
||||
> **重要：** `video.search()` 在没有匹配项时会引发 `InvalidRequestError`，并附带消息 `"No results found"`。请始终将搜索调用包装在 try/except 中。对于场景搜索，请使用 `score_threshold=0.3` 或更高值来过滤低相关性的噪声。
|
||||
|
||||
对于场景搜索，请使用 `search_type=SearchType.semantic` 并设置 `index_type=IndexType.scene`。当针对特定场景索引时，传递 `scene_index_id`。详情请参阅 [search.md](search.md)。
|
||||
|
||||
## SearchResult 对象
|
||||
|
||||
```python
|
||||
results = video.search("query", search_type=SearchType.semantic)
|
||||
```
|
||||
|
||||
| 方法 | 返回值 | 描述 |
|
||||
|--------|---------|-------------|
|
||||
| `results.get_shots()` | `list[Shot]` | 获取匹配的片段列表 |
|
||||
| `results.compile()` | `str` | 将所有镜头编译为流 URL |
|
||||
| `results.play()` | `str` | 在浏览器中打开编译后的流 |
|
||||
|
||||
### Shot 属性
|
||||
|
||||
| 属性 | 类型 | 描述 |
|
||||
|----------|------|-------------|
|
||||
| `shot.video_id` | `str` | 源视频 ID |
|
||||
| `shot.video_length` | `float` | 源视频时长 |
|
||||
| `shot.video_title` | `str` | 源视频标题 |
|
||||
| `shot.start` | `float` | 开始时间（秒） |
|
||||
| `shot.end` | `float` | 结束时间（秒） |
|
||||
| `shot.text` | `str` | 匹配的文本内容 |
|
||||
| `shot.search_score` | `float` | 搜索相关性分数 |
|
||||
|
||||
| 方法 | 返回值 | 描述 |
|
||||
|--------|---------|-------------|
|
||||
| `shot.generate_stream()` | `str` | 流式传输此特定镜头 |
|
||||
| `shot.play()` | `str` | 在浏览器中打开镜头流 |
|
||||
|
||||
## Meeting 对象
|
||||
|
||||
```python
|
||||
meeting = coll.record_meeting(
|
||||
meeting_url="https://meet.google.com/...",
|
||||
bot_name="Bot",
|
||||
callback_url=None, # Webhook URL for status updates
|
||||
callback_data=None, # Optional dict passed through to callbacks
|
||||
time_zone="UTC", # Time zone for the meeting
|
||||
)
|
||||
```
|
||||
|
||||
### Meeting 属性
|
||||
|
||||
| 属性 | 类型 | 描述 |
|
||||
|----------|------|-------------|
|
||||
| `meeting.id` | `str` | 唯一会议 ID |
|
||||
| `meeting.collection_id` | `str` | 父集合 ID |
|
||||
| `meeting.status` | `str` | 当前状态 |
|
||||
| `meeting.video_id` | `str` | 录制视频 ID（完成后） |
|
||||
| `meeting.bot_name` | `str` | 机器人名称 |
|
||||
| `meeting.meeting_title` | `str` | 会议标题 |
|
||||
| `meeting.meeting_url` | `str` | 会议 URL |
|
||||
| `meeting.speaker_timeline` | `dict` | 发言人时间线数据 |
|
||||
| `meeting.is_active` | `bool` | 如果正在初始化或处理中则为真 |
|
||||
| `meeting.is_completed` | `bool` | 如果已完成则为真 |
|
||||
|
||||
### Meeting 方法
|
||||
|
||||
| 方法 | 返回值 | 描述 |
|
||||
|--------|---------|-------------|
|
||||
| `meeting.refresh()` | `Meeting` | 从服务器刷新数据 |
|
||||
| `meeting.wait_for_status(target_status, timeout=14400, interval=120)` | `bool` | 轮询直到达到指定状态 |
|
||||
|
||||
## RTStream 与 Capture
|
||||
|
||||
关于 RTStream（实时摄取、索引、转录），请参阅 [rtstream-reference.md](rtstream-reference.md)。
|
||||
|
||||
关于捕获会话（桌面录制、CaptureClient、频道），请参阅 [capture-reference.md](capture-reference.md)。
|
||||
|
||||
## 枚举与常量
|
||||
|
||||
### SearchType
|
||||
|
||||
```python
|
||||
from videodb import SearchType
|
||||
|
||||
SearchType.semantic # Natural language semantic search
|
||||
SearchType.keyword # Exact keyword matching
|
||||
SearchType.scene # Visual scene search (may require paid plan)
|
||||
SearchType.llm # LLM-powered search
|
||||
```
|
||||
|
||||
### SceneExtractionType
|
||||
|
||||
```python
|
||||
from videodb import SceneExtractionType
|
||||
|
||||
SceneExtractionType.shot_based # Automatic shot boundary detection
|
||||
SceneExtractionType.time_based # Fixed time interval extraction
|
||||
SceneExtractionType.transcript # Transcript-based scene extraction
|
||||
```
|
||||
|
||||
### SubtitleStyle
|
||||
|
||||
```python
|
||||
from videodb import SubtitleStyle
|
||||
|
||||
style = SubtitleStyle(
|
||||
font_name="Arial",
|
||||
font_size=18,
|
||||
primary_colour="&H00FFFFFF",
|
||||
bold=False,
|
||||
# ... see SubtitleStyle for all options
|
||||
)
|
||||
video.add_subtitle(style=style)
|
||||
```
|
||||
|
||||
### SubtitleAlignment 与 SubtitleBorderStyle
|
||||
|
||||
```python
|
||||
from videodb import SubtitleAlignment, SubtitleBorderStyle
|
||||
```
|
||||
|
||||
### TextStyle
|
||||
|
||||
```python
|
||||
from videodb import TextStyle
|
||||
# or: from videodb.asset import TextStyle
|
||||
|
||||
style = TextStyle(
|
||||
fontsize=24,
|
||||
fontcolor="black",
|
||||
boxcolor="white",
|
||||
font="Sans",
|
||||
text_align="T",
|
||||
alpha=1.0,
|
||||
)
|
||||
```
|
||||
|
||||
### 其他常量
|
||||
|
||||
```python
|
||||
from videodb import (
|
||||
IndexType, # spoken_word, scene
|
||||
MediaType, # video, audio, image
|
||||
Segmenter, # word, sentence, time
|
||||
SegmentationType, # sentence, llm
|
||||
TranscodeMode, # economy, lightning
|
||||
ResizeMode, # crop, fit, pad
|
||||
ReframeMode, # simple, smart
|
||||
RTStreamChannelType,
|
||||
)
|
||||
```
|
||||
|
||||
## 异常
|
||||
|
||||
```python
|
||||
from videodb.exceptions import (
|
||||
AuthenticationError, # Invalid or missing API key
|
||||
InvalidRequestError, # Bad parameters or malformed request
|
||||
RequestTimeoutError, # Request timed out
|
||||
SearchError, # Search operation failure (e.g. not indexed)
|
||||
VideodbError, # Base exception for all VideoDB errors
|
||||
)
|
||||
```
|
||||
|
||||
| 异常 | 常见原因 |
|
||||
|-----------|-------------|
|
||||
| `AuthenticationError` | 缺少或无效的 `VIDEO_DB_API_KEY` |
|
||||
| `InvalidRequestError` | 无效 URL、不支持的格式、错误参数 |
|
||||
| `RequestTimeoutError` | 服务器响应时间过长 |
|
||||
| `SearchError` | 在索引前进行搜索、无效的搜索类型 |
|
||||
| `VideodbError` | 服务器错误、网络问题、通用故障 |
|
||||
Reference in New Issue
Block a user