Reference¶

Information-oriented, accurate facts.

Driving the engine¶

• The job-spec vocabulary: the process / probe / frames / version operations; the compatibility contract with afmpeg.
• Driver invocation & ABI: how a host drives the binary: argv, stdio, exit codes, the filesystem devices, and the native IPC framing.
• Errors & exit codes: every message the engine writes to stderr, what caused it, and what to change.
• Limits & what is not supported: the hard caps a job runs into and the capabilities deliberately absent from every build.

What a build contains¶

• Codecs: the decoders and encoders enabled per profile.
• Filters: the libavfilter vocabulary available inside the filter string.
• Containers, bitstream filters & protocols: the demuxers and muxers per profile, and the two protocols the engine can open.

Building and shipping¶

• Build options: every Docker build argument, environment variable and pinned dependency version, and what happens when one is wrong.
• Variants & artifacts: the LGPL/GPL builds as both WASI modules and native drivers, the lean/intermediate/full profiles, the release assets, and versioning.