LanPaint_AVEncode replaces the workflow chain GetVideoComponents ->
VAEEncode -> SetLatentNoiseMask + MiniMaxAudioEncode -> SetLatentNoiseMask
-> Concat AV Latent: it decodes the video's frames and audio track from
the VIDEO reference, encodes both streams, and returns a nested AV latent
with the video and audio masks attached per-stream (no stock
SetLatentNoiseMask, which crashes on 1D masks).
LanPaint_AVDecode is the mirror: it decodes both streams, merges the
inpainted video into the original with MaskBlend-style boundary blending
(blend_overlap), merges the audio by mask intervals with a crossfade
(audio_crossfade, replicate-padded ramp so even kernels keep the exact
length), resamples the inpainted audio to the original rate, resizes the
VAE decode output to the original dimensions, and writes the result with
the original file's fps and bit depth via VideoFromComponents. A source
without an audio track falls back to the inpainted audio.
reshape_mask rework: video masks are aggregated per latent token with a
window-4 temporal max (union) followed by nearest-exact resample, and the
frames-at-batch [F,1,H,W] convention produced by SetLatentNoiseMask is
handled; audio masks [F], [F,1] or [1,1,F,1] are resampled to the audio
latent's token grid. The stock per-stream mask prep is routed through our
prepare_mask (video_inpainting for 5D targets) inside override_sample_function,
which now guards against nested entry. Audio encode is a pure encoder.
Also: editor node fps fallback for VideoFromFile.get_frame_rate, 5D decode
batch combine, audio channel-count match, and MaskBlend.gaussian_kernel
now shares the guarded kernel helper (fixing NaN at overlap=1).
scraed
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