check_av returned the module on success and False on failure, so the two
callers testing for None treated a failed import as a working av and reached
into it anyway. It now returns None, and the guard that had to test for both
tests for one.
Pipelines rarely report a sample rate, so the save path fell back to 24000.
LTX-2.3 and 2.5 run at 48k, and muxing at half the rate drops the track an
octave. The rate now comes from the vocoder, as the LTX tab already did.
relabel toggle to 'LTX save audio' (default true) since audio always
generates on 2.x audio-capable models; the toggle gates mux only. hint
added to locale_en.json.
split add_audio_stream from write_audio. avformat_write_header runs on
first container.mux() and freezes the stream set, so audio added after
video packets has time_base=0/0 and raises 'Cannot rebase to zero time.'
atomic_save_video registers the audio stream before the encode loop.
Promote RIFE interpolation from a save-time kwarg to a real stage of the
processing pipeline so per-frame work (detailer, color correction,
postprocess scripts) operates on source-rate frames and the inflated
stream becomes the saved output.
- new modules/processing_video.py with apply_video_interpolation,
interpolation_factor, expand_infotexts; PIL/tensor/numpy dispatch
- video_interpolate, video_interpolate_scale, video_interpolated fields
on StableDiffusionProcessingVideo
- process_images_inner runs the helper after the batch loop and inflates
infotexts in lockstep
- save_video in modules/video.py and modules/video_models/video_save.py
short-circuit re-interpolation when p.video_interpolated is set; the
user-facing kwarg still flows into metadata
video_save passes [-1,1]-range pixels to rife.interpolate_nchw, but
RIFE v4.25's IFNet explicitly clamps inputs to [0,1] (Head and IFNet
forward pass), turning every negative pixel value into zero. v3.9
silently extrapolated and produced soft artifacts; v4.25 produces
washout. Convert to [0,1] before the RIFE call and back to [-1,1] for
downstream save.
Vladimir Mandic
CalamitousFelicitousness
Ryan Meador
awsr