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craft-libs/crates
Dylan M. TaylorandJustin A. Wilson 45177e282e craft-webp: animated WebP writer, lossy through craft-video's VP8 encoder (depends on #969) (#1021)
* craft-video: VP8 key-frame encoder (`vp8-encode` feature)

Moves effectcraft's effectcraft-vp8enc here: the lossy picture of a WebP image
or animation frame, written from RFC 6386. Rate-distortion choice between the
16x16 and B_PRED intra modes, per-frame token probability updates, loop filter
level from the quantizer.

`vp8` now turns on `vp8-decode` and `vp8-encode`, as `vp9` does; the decoder's
tests and examples require `vp8-decode`. The tests decode the encoder's frames
with this crate's decoder: with the loop filter off it reproduces the encoder's
reconstruction exactly.

* craft-webp: animated WebP writer, lossy through craft-video (feature vp8)

The VP8X/ANIM/ANMF container around frames another encoder made (lossy with
an alpha plane, or lossless VP8L), and with feature vp8 whole lossy
animations from RGBA frames through craft-video's VP8 key-frame encoder.

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Co-authored-by: Justin A. Wilson <waj334@gmail.com>
2026-11-11 20:37:10 -05:00
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2026-11-05 10:29:52 +01:00
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