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compose_project_frame

screen_app::editor_export

Function compose_project_frame 

Source 
pub fn compose_project_frame(
    preview: &mut EditorPreview,
    stream: &mut EditorVideoStream,
    project: &EditProject,
    frame: u64,
) -> Option<ComposedFrame>
Expand description

Compose project frame frame into a ComposedFrame — the single per-frame compose shared by the deferred export generator and the live editor preview (AUT-510), so what you scrub is what you ship.

Maps the project frame to its source frame (trim / split / speed via [EditProject::source_time]), decodes it from stream, then applies the cinematic framing: the zoom punch-in ([active_zoom_at], ED.16), the crop / aspect reframe (ED.15), and — when the project carries a cursor track — the cursor overlay + click ripples (cursor_for_frame + ripples_at, ED.19). Returns None past the end of the timeline or on a decode miss.