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[modular] Add LTX-2.5 DFR blocks - #14600

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[modular] Add LTX-2.5 DFR blocks#14600
linoytsaban wants to merge 9 commits into
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ltx2-dfr-modular

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@linoytsaban

@linoytsaban linoytsaban commented Aug 25, 2026

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Modular implementation of DFR pipeline introduced in #14567. Same keyframe-slot
mechanism, split into blocks so the two stages are two calls of one blockset.

This PR covers the two-stage core only (base pass + spatial detailing). Temporal refine rounds and
the spatial_upscalings=2 epilogue not yet.

cc @yiyixuxu

@github-actions github-actions Bot added documentation Improvements or additions to documentation models tests modular-pipelines utils size/L PR with diff > 200 LOC labels Aug 25, 2026
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The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

@linoytsaban

linoytsaban commented Aug 25, 2026

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btw @yiyixuxu,LTX2DFRPrepareLatentsStep naturally overlaps LTX2ConditionPrepareLatentsStep quite a lot, should we move the overlapping parts to a module-level helper (similarly to the H3 refactor)?

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