Media I/O Subsystem

The MediaIO framework is libpromeki's uniform interface for reading and writing media — files, image sequences, capture cards, codecs, and synthetic generators. The framework is documented through two audience-targeted guides.

Two guides

• MediaIO User Guide — for application authors. The always-async API, factory entry points, MediaIORequest, ports and port groups, port connections, cancellation, signals, and the catalog of available backends.
• MediaIO Backend Author Guide — for backend authors. Strategy class selection, factory registration, the executeCmd contract, port construction during open, the cancellation contract, the live-capture pattern, and the test scaffolding.

See also

• Inspector — Frame validation and monitoring — the QA companion for the TPG synthetic source.
• MediaPipeline — the pipeline composition layer that wraps MediaIO + port connections behind a single lifecycle.
• MediaPipelinePlanner — automatic bridge insertion for format-mismatched stages.
• Threading — process-wide concurrency model including the ThreadPool/Strand primitives the framework relies on.