pub fn plan_composition(
composition: &Composition,
compositions: &[Composition],
sources: &[MediaSource],
) -> Result<CompositionPlan, PlanError>Expand description
Compiles composition’s output into steps, as a clip’s composition: its
clip nodes draw the clip’s picture. compositions resolves group nodes
and sources media nodes, which may name generated or composition
sources.
The project must be valid (alpha2_model::Project::validate): every
input names a node, there is no cycle, and no composition uses itself.
The plan holds at most MAX_PLAN_BYTES; an index holds every plan of
a project within that together.
§Errors
Returns PlanError when there is no output, the output needs an input
that is not connected or a group input no group node feeds, or the plan
nests too deep or grows too large.