haishinkit

Core APIs for capturing, composing, encoding, playing, and recording media.

Use MediaMixer to attach audio and video sources and route media to streams, preview views, or a MediaRecorder. Build video compositions with Screen and its screen objects. StreamSession provides a common publishing and playback interface; register a protocol-specific factory before building a session.

Screen snapshot compatibility

ScreenObjectSnapshot shares its JSON fields with HaishinKit.swift for container, video, text, and image. A screen snapshot is restored as a container. Sizes and margins use integer values, alignment uses 0/1/2 (left/center/right or top/middle/bottom), and children retain their order.

Text elements use value, fontSize, and color (#AARRGGBB). The default font size is 32, with a bold system font. Text supports explicit newlines and wrapping within its requested bounds. Layout preserves the requested size in the snapshot. Font metrics, glyphs, and line breaks can vary between Android and Apple system fonts; pixel-identical text is not guaranteed. Image elements use source with a base64 data URI, and video elements use track.

Custom types require platform-specific support. Android preserves an unknown type's place with NullScreenObject, whereas Swift's built-in factory returns nil for unsupported types. Only properties represented by the snapshot are shared; effects, video scaling, and orientation are not encoded by this format.