AcademySoftwareFoundation/OpenTimelineIO

Health v2 · maintenance only

Flags: prerelease_only

Adoption not part of the score

1965 stars · 342 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

OpenTimelineIO (OTIO) is an open-source API and interchange format for editorial timeline/cut information, with a C++ core library, in-memory data model, and official Python bindings. It represents clip order, timing, and references to external media, but is not a media container format.

Use cases

• convert edit timelines between NLE applications like Premiere, Avid, and Resolve
• read and write editorial cut lists programmatically in Python
• integrate timeline data into VFX or animation pipelines
• manipulate clip timing and sequence structure in C++
• exchange cut information between game engines and editorial tools

When to choose

• you need a stable, industry-adopted interchange format for editorial timeline data across film/TV tools
• you want Python or C++ APIs to inspect and transform cut/timing metadata
• you're building pipeline tooling that must move edit decisions between applications

When to avoid

• you need to store or transcode actual media - OTIO only references media, it is not a container format
• you need a full video editing application rather than a timeline data library
• you need frame-accurate rendering of timelines on its own - OTIO delegates playback/rendering to other tools

Facets

library · maturity stable

serialization sdk parser media developer-tools graphics cpp python cross-platform editorial-timeline interchange-format vfx film-editing nle opentime aswf video

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