@webav/av-cliper v1.0.19
AVCliper
WebCodecs-based, combine video, audio, images, text, with animation support 基于 WebCodecs 合成 视频、音频、图片、文字,支持动画
Basic Concepts 基础概念
Combinator
: addOffscreenSprite
, output video stream- Currently only supports outputting binary streams for MP4 format
IClip
: Abstract encapsulation of resources, reading (IClip.tick(time)
) raw data of resources by time slice, has been implemented for theIClip
interface with:MP4Clip, AudioClip, ImgClip, EmbedSubtitlesClip
(embedded SRT subtitles), these are the types of resources supported byCombinator
BaseSprite
: An abstract representation of manipulable elements, attaching Rect information (position, width, height, layer, animation) to resources to make them controllable.OffscreenSprite
: Wraps resources (IClip
) and adds them to aCombinator
for background offscreen video synthesis.AVCanvas
: IncludesVideoSprite, AudioSprite, ImgSprite, TextSprite
to support user or program control over the positioning of drawn resources.
Combinator
: 视频合成器,添加OffscreenSprite
, 输出视频流- 目前仅支持输出 MP4 格式的二进制流
IClip
: 资源的抽象封装,按时间片段读取(IClip.tick(time)
)资源的原始数据,IClip
接口的实现类有:MP4Clip, AudioClip, ImgClip, EmbedSubtitlesClip
(内嵌 SRT 字幕),这些是合成视频所支持的资源类型
BaseSprite
可操作元素的抽象,给资源附加 Rect(位置、宽高、层级、动画)信息,使得资源可被控制OffscreenSprite
: 包装资源(IClip
)添加到Combinator
,在后台离屏合成视频AVCanvas
包含了VideoSprite, AudioSprite, ImgSprite, TextSprite
,以支持用户或程序控制资源绘制的位置
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