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Dylan M. Taylor 7f8a4eed58 craft-video: APV decoder and encoder from FilmCraft (apv) (#865 )

FilmCraft's crates/apv at 4bec22bd moves to craft_video::apv: the decoder
(craft_video::apv::decode, feature `apv-decode`), the encoder
(craft_video::apv::encode, feature `apv-encode`), both re-exported at the
module root; `apv` turns on both. Sources, README and tests (ffmpeg oracle,
alpha, mutation and hostile sweeps).

Changes in the move: craft_media::bitstream and craft-media-testkit instead of
FilmCraft's, one test target (tests/apv), crate paths.

New: DecodeOptions::memory_budget (craft_video::budget) refuses a frame whose
samples do not fit before anything is allocated (Error::MemoryBudget).

Fixed, each with a test that fails without it (debug-build overflows):
- EncoderConfig::new multiplied width, height and 30 in u64 without a check.
- Frame::new shifted by the bit depth unchecked (32 and above overflow).
- The public transform functions shifted by a bit depth outside 10..=16.

2026-11-11 17:26:22 -05:00

examples

craft-video: H.264 decoder from FilmCraft, with DeckCraft's hardening (h264-decode) (#834 )

2026-11-11 15:25:33 -05:00

src

craft-video: APV decoder and encoder from FilmCraft (apv) (#865 )

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tests

craft-video: APV decoder and encoder from FilmCraft (apv) (#865 )

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tools

craft-video: HEVC decoder from FilmCraft, with DeckCraft's hardening (hevc-decode) (#828 )

2026-11-11 14:24:30 -05:00

Cargo.toml

craft-video: APV decoder and encoder from FilmCraft (apv) (#865 )

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README.md

craft-video: APV decoder and encoder from FilmCraft (apv) (#865 )

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README.md

craft-video

Clean-room pure-Rust video codecs for the Craft apps, one feature per codec: DNxHD/DNxHR, VP8, ProRes and H.264.

Input and output are byte slices and planar sample buffers; the crate opens no files itself and performs no filesystem I/O.
Implemented from published standards and RFCs (SMPTE ST 2019-1, RFC 6386, SMPTE RDD 36 and ITU-T H.264).
Tested against ffmpeg as an external oracle with roundtrips, hostile fuzzing, and conformance vectors. No unsafe, no panics on corrupt streams. Builds for wasm32-unknown-unknown.
Containers (MP4/MOV, Matroska/WebM), bit-level I/O (craft_media::bitstream) and shared identifiers (CodecId, CodecParams) come from craft-media.

Cargo features

No codec feature is on by default.

Feature	Module	Codec
`dnx`	`dnx`	Avid DNxHD / DNxHR (SMPTE ST 2019-1 VC-3): decoder and encoder
`apv`	`apv`	APV (Advanced Professional Video, RFC 9924): decoder (`apv-decode` alone) and encoder (`apv-encode` alone)
`vp8`	`vp8`	VP8 (RFC 6386): decoder
`prores`	`prores`	Apple ProRes (SMPTE RDD 36): decoder and encoder
`h264`	`h264`	ITU-T H.264 / AVC: decoder (`h264-decode` alone) and encoder (`h264-encode` alone)
`hevc`	`hevc`	ITU-T H.265 / HEVC: decoder (`hevc-decode` alone) and encoder (`hevc-encode` alone)
`vp9`	`vp9`	VP9: decoder (`vp9-decode` alone) and encoder (`vp9-encode` alone)
`av1`	`av1`	AV1 (AOMedia Video 1): encoder
`threads`	—	Multi-threaded slice/row parallelism via `rayon`