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build_manifest_v2.py

@@ -0,0 +1,68 @@
+import json, copy, os
+from collections import Counter
+
+m = json.load(open('/workspace/ltx_co_manifest_recolored.json'))
+WIN_SIZE = 81
+KF_DIR = '/workspace/q_kf_recolored'
+
+cuts_raw = [
+    (7, 56, 623),
+    (9, 14, 743),
+    (20, 39, 1659),
+    (23, 7, 1870),
+    (32, 49, 2641),
+    (39, 22, 3181),
+    (41, 52, 3373),
+    (43, 58, 3541),
+    (49, 58, 4027),
+    (50, 30, 4080),
+    (51, 10, 4141),
+    (66, 41, 5387),
+]
+
+CUT_AT_START_THRESH = 15
+new_manifest = copy.deepcopy(m)
+
+for wi, fi, abs_cut in cuts_raw:
+    w = new_manifest[wi]
+    kf_name = 'ref_%06d.png' % abs_cut
+    kf_path = KF_DIR + '/' + kf_name
+    kf_exists = os.path.exists(kf_path)
+
+    if fi <= CUT_AT_START_THRESH:
+        w['cut_at_start'] = True
+        print('w%d: cut_at_start=True (fi=%d, kf_pos=%d)' % (wi, fi, w['kf_pos']))
+    else:
+        if kf_exists:
+            anchor_pos = min(fi + 2, WIN_SIZE - 1)
+            if 'extra_anchors' not in w:
+                w['extra_anchors'] = []
+            w['extra_anchors'].append({'path': kf_path, 'pos': anchor_pos, 'weight': 0.95})
+            print('w%d: extra_anchor %s @ pos %d (cut@%d)' % (wi, kf_name, anchor_pos, fi))
+        else:
+            print('w%d: GEEN kf %s, skip' % (wi, kf_name))
+
+    if wi == 50 and fi == 30:
+        old_pos = w['kf_pos']
+        w['kf_pos'] = fi + 2  # 32 ipv 52
+        print('w50: kf_pos %d -> %d' % (old_pos, w['kf_pos']))
+
+# Scene-ID toewijzen
+scene_id = 0
+for i, w in enumerate(new_manifest):
+    if w.get('cut_at_start') and i > 0:
+        scene_id += 1
+    w['scene_id'] = scene_id
+
+scene_counts = Counter(w['scene_id'] for w in new_manifest)
+print('\nScene-verdeling (parallel-klaar):')
+for sc in sorted(scene_counts):
+    ws = [i for i, ww in enumerate(new_manifest) if ww['scene_id'] == sc]
+    cnt = scene_counts[sc]
+    print('  scene %d: w%d-w%d (%d vensters, ~%dmin %ds)' % (sc, ws[0], ws[-1], cnt, cnt*63//60, cnt*63%60))
+
+out_path = '/workspace/ltx_co_manifest_v2.json'
+with open(out_path, 'w') as f:
+    json.dump(new_manifest, f, indent=2)
+print('\nGeschreven: ' + out_path)
+print('Totaal: %d vensters' % len(new_manifest))

check_quanto.py

@@ -0,0 +1,64 @@
+import sys
+sys.path.insert(0,'/workspace/LTX-2/packages/ltx-pipelines/src')
+sys.path.insert(0,'/workspace/LTX-2/packages/ltx-core/src')
+import torch
+from optimum.quanto import quantize, qfloat8, freeze
+from ltx_pipelines.ic_lora import ICLoraPipeline
+from ltx_core.loader import LoraPathStrengthAndSDOps, LTXV_LORA_COMFY_RENAMING_MAP
+from ltx_pipelines.utils.types import OffloadMode
+
+pipe = ICLoraPipeline(
+    distilled_checkpoint_path='/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors',
+    spatial_upsampler_path='/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors',
+    gemma_root='/workspace/models/LTX-2',
+    loras=(LoraPathStrengthAndSDOps('/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors',1.0,LTXV_LORA_COMFY_RENAMING_MAP),),
+    quantization=None, offload_mode=OffloadMode('none'),
+)
+
+with torch.no_grad():
+    dit = pipe.stage_1._build_transformer()
+
+print("VRAM before quantize:", torch.cuda.memory_allocated()//1024**3, "GB")
+quantize(dit, weights=qfloat8)
+
+print("--- patchify_proj modules after quantize (before freeze) ---")
+for name, mod in dit.named_modules():
+    if 'patchify_proj' in name:
+        w = getattr(mod, 'weight', 'NO_ATTR')
+        print(name, type(mod).__name__, "weight-type:", type(w).__name__ if w is not None else "None")
+
+print("\nFreezing...")
+freeze(dit)
+print("Freeze done")
+
+print("--- patchify_proj modules after freeze ---")
+for name, mod in dit.named_modules():
+    if 'patchify_proj' in name:
+        w = getattr(mod, 'weight', 'NO_ATTR')
+        qw = getattr(mod, 'qweight', 'NO_ATTR') if hasattr(mod, 'qweight') else 'N/A'
+        print(name, type(mod).__name__, "weight:", w if w is None else type(w).__name__, "qweight:", type(qw).__name__ if not isinstance(qw,str) else qw)
+
+print("VRAM after freeze:", torch.cuda.memory_allocated()//1024**3, "GB")
+
+print('=== Check simple_preprocessor.patchify_proj ===')
+# velocity_model is inside X0Model
+vm = dit.model._model if hasattr(dit.model,'_model') else None
+if vm is None:
+    for attr in ['_model','model','velocity_model']:
+        vm = getattr(dit, attr, None) or getattr(getattr(dit,'model',None), attr, None)
+        if vm: break
+
+if vm:
+    vap = getattr(vm, 'video_args_preprocessor', None)
+    if vap:
+        print('video_args_preprocessor found:', type(vap).__name__)
+        sp = getattr(vap, 'simple_preprocessor', None) or vap
+        pp = getattr(sp, 'patchify_proj', None)
+        if pp:
+            w = getattr(pp, 'weight', 'NO_ATTR')
+            print('simple_preprocessor.patchify_proj type:', type(pp).__name__)
+            print('patchify_proj.weight:', w if w is None else (type(w).__name__, getattr(w,'shape','?')))
+    else:
+        print('no video_args_preprocessor')
+else:
+    print('no velocity_model found; dit attrs:', [a for a in dir(dit) if not a.startswith('_')][:20])

extract_windows.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+cd /workspace
+mkdir -p ltx_windows
+for K in $(seq 0 66); do
+  s=$((K*81)); e=$((s+81))
+  ffmpeg -y -i schindler_720.mp4 -vf "trim=start_frame=${s}:end_frame=${e},setpts=PTS-STARTPTS,scale=960:544" -an ltx_windows/w${K}.mp4 2>/dev/null
+done
+echo "DONE_EXTRACT $(ls ltx_windows/*.mp4 2>/dev/null | wc -l)"

iso.py

@@ -0,0 +1,26 @@
+import os, numpy as np
+from PIL import Image
+kf="/workspace/q_kf/"; yel=blu=met=ok=0; n=0
+for f in sorted(os.listdir(kf)):
+    if not f.lower().endswith(('.png','.jpg','.jpeg')): continue
+    a=np.array(Image.open(kf+f).convert('RGB')).astype(np.float32); n+=1
+    g=0.299*a[...,0]+0.587*a[...,1]+0.114*a[...,2]
+    flags=[]
+    mw=g>210
+    if mw.sum()>300:
+        r,gg,b=a[...,0][mw].mean(),a[...,1][mw].mean(),a[...,2][mw].mean()
+        yb=(r+gg)/2-b
+        if yb>8: flags.append(f"WIT->GEEL({yb:.1f})"); yel+=1
+    md=(g>35)&(g<95)
+    if md.sum()>500:
+        r,gg,b=a[...,0][md].mean(),a[...,1][md].mean(),a[...,2][md].mean()
+        bb=b-gg
+        if bb>5: flags.append(f"UNIFORM->BLAUW({bb:.1f})"); blu+=1
+    mm=(g>80)&(g<160)
+    if mm.sum()>1000:
+        r,gg,b=a[...,0][mm],a[...,1][mm],a[...,2][mm]
+        cv=float(np.std(r-gg))+float(np.std(b-gg))
+        if cv>12: flags.append(f"METAAL-VLEK({cv:.1f})"); met+=1
+    if flags and (yel+blu+met)<=14: print(f"{f}: {', '.join(flags)}")
+    if not flags: ok+=1
+print(f"\n=== {n} keyframes: wit->geel={yel}, uniform->blauw={blu}, metaal-vlek={met}, schoon={ok} ===")

ltx_co_manifest.json

@@ -0,0 +1,538 @@
+[
+ {
+  "gray": "/workspace/ltx_windows/w0.mp4",
+  "keyframe": "/workspace/q_kf/ref_000000.png",
+  "kf_pos": 0,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w0.mp4",
+  "cut_at_start": true
+ },
+ {
+  "gray": "/workspace/ltx_windows/w1.mp4",
+  "keyframe": "/workspace/q_kf/ref_000150.png",
+  "kf_pos": 69,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w1.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w2.mp4",
+  "keyframe": "/workspace/q_kf/ref_000225.png",
+  "kf_pos": 63,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w2.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w3.mp4",
+  "keyframe": "/workspace/q_kf/ref_000300.png",
+  "kf_pos": 57,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w3.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w4.mp4",
+  "keyframe": "/workspace/q_kf/ref_000375.png",
+  "kf_pos": 51,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w4.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w5.mp4",
+  "keyframe": "/workspace/q_kf/ref_000450.png",
+  "kf_pos": 45,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w5.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w6.mp4",
+  "keyframe": "/workspace/q_kf/ref_000525.png",
+  "kf_pos": 39,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w6.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w7.mp4",
+  "keyframe": "/workspace/q_kf/ref_000600.png",
+  "kf_pos": 33,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w7.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w8.mp4",
+  "keyframe": "/workspace/q_kf/ref_000698.png",
+  "kf_pos": 50,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w8.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w9.mp4",
+  "keyframe": "/workspace/q_kf/ref_000743.png",
+  "kf_pos": 14,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w9.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w10.mp4",
+  "keyframe": "/workspace/q_kf/ref_000818.png",
+  "kf_pos": 8,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w10.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w11.mp4",
+  "keyframe": "/workspace/q_kf/ref_000893.png",
+  "kf_pos": 2,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w11.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w12.mp4",
+  "keyframe": "/workspace/q_kf/ref_001043.png",
+  "kf_pos": 71,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w12.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w13.mp4",
+  "keyframe": "/workspace/q_kf/ref_001118.png",
+  "kf_pos": 65,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w13.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w14.mp4",
+  "keyframe": "/workspace/q_kf/ref_001193.png",
+  "kf_pos": 59,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w14.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w15.mp4",
+  "keyframe": "/workspace/q_kf/ref_001268.png",
+  "kf_pos": 53,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w15.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w16.mp4",
+  "keyframe": "/workspace/q_kf/ref_001343.png",
+  "kf_pos": 47,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w16.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w17.mp4",
+  "keyframe": "/workspace/q_kf/ref_001418.png",
+  "kf_pos": 41,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w17.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w18.mp4",
+  "keyframe": "/workspace/q_kf/ref_001493.png",
+  "kf_pos": 35,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w18.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w19.mp4",
+  "keyframe": "/workspace/q_kf/ref_001568.png",
+  "kf_pos": 29,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w19.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w20.mp4",
+  "keyframe": "/workspace/q_kf/ref_001643.png",
+  "kf_pos": 23,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w20.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w21.mp4",
+  "keyframe": "/workspace/q_kf/ref_001734.png",
+  "kf_pos": 33,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w21.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w22.mp4",
+  "keyframe": "/workspace/q_kf/ref_001809.png",
+  "kf_pos": 27,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w22.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w23.mp4",
+  "keyframe": "/workspace/q_kf/ref_001870.png",
+  "kf_pos": 7,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w23.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w24.mp4",
+  "keyframe": "/workspace/q_kf/ref_001945.png",
+  "kf_pos": 1,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w24.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w25.mp4",
+  "keyframe": "/workspace/q_kf/ref_002095.png",
+  "kf_pos": 70,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w25.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w26.mp4",
+  "keyframe": "/workspace/q_kf/ref_002170.png",
+  "kf_pos": 64,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w26.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w27.mp4",
+  "keyframe": "/workspace/q_kf/ref_002245.png",
+  "kf_pos": 58,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w27.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w28.mp4",
+  "keyframe": "/workspace/q_kf/ref_002320.png",
+  "kf_pos": 52,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w28.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w29.mp4",
+  "keyframe": "/workspace/q_kf/ref_002395.png",
+  "kf_pos": 46,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w29.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w30.mp4",
+  "keyframe": "/workspace/q_kf/ref_002470.png",
+  "kf_pos": 40,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w30.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w31.mp4",
+  "keyframe": "/workspace/q_kf/ref_002545.png",
+  "kf_pos": 34,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w31.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w32.mp4",
+  "keyframe": "/workspace/q_kf/ref_002620.png",
+  "kf_pos": 28,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w32.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w33.mp4",
+  "keyframe": "/workspace/q_kf/ref_002716.png",
+  "kf_pos": 43,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w33.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w34.mp4",
+  "keyframe": "/workspace/q_kf/ref_002791.png",
+  "kf_pos": 37,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w34.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w35.mp4",
+  "keyframe": "/workspace/q_kf/ref_002866.png",
+  "kf_pos": 31,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w35.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w36.mp4",
+  "keyframe": "/workspace/q_kf/ref_002941.png",
+  "kf_pos": 25,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w36.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w37.mp4",
+  "keyframe": "/workspace/q_kf/ref_003000.png",
+  "kf_pos": 3,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w37.mp4",
+  "cut_at_start": true
+ },
+ {
+  "gray": "/workspace/ltx_windows/w38.mp4",
+  "keyframe": "/workspace/q_kf/ref_003150.png",
+  "kf_pos": 72,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w38.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w39.mp4",
+  "keyframe": "/workspace/q_kf/ref_003185.png",
+  "kf_pos": 26,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w39.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w40.mp4",
+  "keyframe": "/workspace/q_kf/ref_003260.png",
+  "kf_pos": 20,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w40.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w41.mp4",
+  "keyframe": "/workspace/q_kf/ref_003335.png",
+  "kf_pos": 14,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w41.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w42.mp4",
+  "keyframe": "/workspace/q_kf/ref_003448.png",
+  "kf_pos": 46,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w42.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w43.mp4",
+  "keyframe": "/workspace/q_kf/ref_003523.png",
+  "kf_pos": 40,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w43.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w44.mp4",
+  "keyframe": "/workspace/q_kf/ref_003616.png",
+  "kf_pos": 52,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w44.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w45.mp4",
+  "keyframe": "/workspace/q_kf/ref_003691.png",
+  "kf_pos": 46,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w45.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w46.mp4",
+  "keyframe": "/workspace/q_kf/ref_003795.png",
+  "kf_pos": 69,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w46.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w47.mp4",
+  "keyframe": "/workspace/q_kf/ref_003870.png",
+  "kf_pos": 63,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w47.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w48.mp4",
+  "keyframe": "/workspace/q_kf/ref_003945.png",
+  "kf_pos": 57,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w48.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w49.mp4",
+  "keyframe": "/workspace/q_kf/ref_004020.png",
+  "kf_pos": 51,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w49.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w50.mp4",
+  "keyframe": "/workspace/q_kf/ref_004102.png",
+  "kf_pos": 52,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w50.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w51.mp4",
+  "keyframe": "/workspace/q_kf/ref_004141.png",
+  "kf_pos": 10,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w51.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w52.mp4",
+  "keyframe": "/workspace/q_kf/ref_004216.png",
+  "kf_pos": 4,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w52.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w53.mp4",
+  "keyframe": "/workspace/q_kf/ref_004320.png",
+  "kf_pos": 27,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w53.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w54.mp4",
+  "keyframe": "/workspace/q_kf/ref_004395.png",
+  "kf_pos": 21,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w54.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w55.mp4",
+  "keyframe": "/workspace/q_kf/ref_004470.png",
+  "kf_pos": 15,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w55.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w56.mp4",
+  "keyframe": "/workspace/q_kf/ref_004545.png",
+  "kf_pos": 9,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w56.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w57.mp4",
+  "keyframe": "/workspace/q_kf/ref_004620.png",
+  "kf_pos": 3,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w57.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w58.mp4",
+  "keyframe": "/workspace/q_kf/ref_004770.png",
+  "kf_pos": 72,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w58.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w59.mp4",
+  "keyframe": "/workspace/q_kf/ref_004845.png",
+  "kf_pos": 66,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w59.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w60.mp4",
+  "keyframe": "/workspace/q_kf/ref_004920.png",
+  "kf_pos": 60,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w60.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w61.mp4",
+  "keyframe": "/workspace/q_kf/ref_004995.png",
+  "kf_pos": 54,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w61.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w62.mp4",
+  "keyframe": "/workspace/q_kf/ref_005070.png",
+  "kf_pos": 48,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w62.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w63.mp4",
+  "keyframe": "/workspace/q_kf/ref_005145.png",
+  "kf_pos": 42,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w63.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w64.mp4",
+  "keyframe": "/workspace/q_kf/ref_005220.png",
+  "kf_pos": 36,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w64.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w65.mp4",
+  "keyframe": "/workspace/q_kf/ref_005295.png",
+  "kf_pos": 30,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w65.mp4",
+  "cut_at_start": false
+ },
+ {
+  "gray": "/workspace/ltx_windows/w66.mp4",
+  "keyframe": "/workspace/q_kf/ref_005370.png",
+  "kf_pos": 24,
+  "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+  "out": "/workspace/ltx_co_out/w66.mp4",
+  "cut_at_start": false
+ }
+]

ltx_co_manifest_recolored.json

@@ -0,0 +1 @@
+[{"gray": "/workspace/ltx_windows/w0.mp4", "keyframe": "/workspace/q_kf_recolored/ref_000000.png", "kf_pos": 0, "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.", "out": "/workspace/ltx_co_out/w0.mp4", "cut_at_start": true}, {"gray": "/workspace/ltx_windows/w1.mp4", "keyframe": "/workspace/q_kf_recolored/ref_000150.png", "kf_pos": 69, "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.", "out": "/workspace/ltx_co_out/w1.mp4", "cut_at_start": false}, {"gray": "/workspace/ltx_windows/w2.mp4", "keyframe": "/workspace/q_kf_recolored/ref_000225.png", "kf_pos": 63, "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; 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only the colour changes, do not add, remove, move or alter anything.", "out": "/workspace/ltx_co_out/w65.mp4", "cut_at_start": false}, {"gray": "/workspace/ltx_windows/w66.mp4", "keyframe": "/workspace/q_kf_recolored/ref_005370.png", "kf_pos": 24, "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.", "out": "/workspace/ltx_co_out/w66.mp4", "cut_at_start": false}]

ltx_co_manifest_v2.json

@@ -0,0 +1,654 @@
+[
+  {
+    "gray": "/workspace/ltx_windows/w0.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000000.png",
+    "kf_pos": 0,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w0.mp4",
+    "cut_at_start": true,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w1.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000150.png",
+    "kf_pos": 69,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w1.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w2.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000225.png",
+    "kf_pos": 63,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w2.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w3.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000300.png",
+    "kf_pos": 57,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w3.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w4.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000375.png",
+    "kf_pos": 51,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w4.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w5.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000450.png",
+    "kf_pos": 45,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w5.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w6.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000525.png",
+    "kf_pos": 39,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w6.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w7.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000600.png",
+    "kf_pos": 33,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w7.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_000623.png",
+        "pos": 58,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w8.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000698.png",
+    "kf_pos": 50,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w8.mp4",
+    "cut_at_start": false,
+    "scene_id": 0
+  },
+  {
+    "gray": "/workspace/ltx_windows/w9.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000743.png",
+    "kf_pos": 14,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w9.mp4",
+    "cut_at_start": true,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w10.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000818.png",
+    "kf_pos": 8,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w10.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w11.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_000893.png",
+    "kf_pos": 2,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w11.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w12.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001043.png",
+    "kf_pos": 71,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w12.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w13.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001118.png",
+    "kf_pos": 65,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w13.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w14.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001193.png",
+    "kf_pos": 59,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w14.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w15.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001268.png",
+    "kf_pos": 53,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w15.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w16.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001343.png",
+    "kf_pos": 47,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w16.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w17.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001418.png",
+    "kf_pos": 41,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w17.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w18.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001493.png",
+    "kf_pos": 35,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w18.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w19.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001568.png",
+    "kf_pos": 29,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w19.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w20.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001643.png",
+    "kf_pos": 23,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w20.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_001659.png",
+        "pos": 41,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w21.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001734.png",
+    "kf_pos": 33,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w21.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w22.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001809.png",
+    "kf_pos": 27,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w22.mp4",
+    "cut_at_start": false,
+    "scene_id": 1
+  },
+  {
+    "gray": "/workspace/ltx_windows/w23.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001870.png",
+    "kf_pos": 7,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w23.mp4",
+    "cut_at_start": true,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w24.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_001945.png",
+    "kf_pos": 1,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w24.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w25.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002095.png",
+    "kf_pos": 70,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w25.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w26.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002170.png",
+    "kf_pos": 64,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w26.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w27.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002245.png",
+    "kf_pos": 58,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w27.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w28.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002320.png",
+    "kf_pos": 52,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w28.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w29.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002395.png",
+    "kf_pos": 46,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w29.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w30.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002470.png",
+    "kf_pos": 40,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w30.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w31.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002545.png",
+    "kf_pos": 34,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w31.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w32.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002620.png",
+    "kf_pos": 28,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w32.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_002641.png",
+        "pos": 51,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w33.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002716.png",
+    "kf_pos": 43,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w33.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w34.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002791.png",
+    "kf_pos": 37,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w34.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w35.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002866.png",
+    "kf_pos": 31,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w35.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w36.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_002941.png",
+    "kf_pos": 25,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w36.mp4",
+    "cut_at_start": false,
+    "scene_id": 2
+  },
+  {
+    "gray": "/workspace/ltx_windows/w37.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003000.png",
+    "kf_pos": 3,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w37.mp4",
+    "cut_at_start": true,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w38.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003150.png",
+    "kf_pos": 72,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w38.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w39.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003185.png",
+    "kf_pos": 26,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w39.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w40.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003260.png",
+    "kf_pos": 20,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w40.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w41.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003335.png",
+    "kf_pos": 14,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w41.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_003373.png",
+        "pos": 54,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w42.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003448.png",
+    "kf_pos": 46,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w42.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w43.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003523.png",
+    "kf_pos": 40,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w43.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_003541.png",
+        "pos": 60,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w44.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003616.png",
+    "kf_pos": 52,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w44.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w45.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003691.png",
+    "kf_pos": 46,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w45.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w46.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003795.png",
+    "kf_pos": 69,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w46.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w47.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003870.png",
+    "kf_pos": 63,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w47.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w48.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_003945.png",
+    "kf_pos": 57,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w48.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w49.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004020.png",
+    "kf_pos": 51,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w49.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_004027.png",
+        "pos": 60,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w50.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004102.png",
+    "kf_pos": 32,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w50.mp4",
+    "cut_at_start": false,
+    "scene_id": 3
+  },
+  {
+    "gray": "/workspace/ltx_windows/w51.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004141.png",
+    "kf_pos": 10,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w51.mp4",
+    "cut_at_start": true,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w52.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004216.png",
+    "kf_pos": 4,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w52.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w53.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004320.png",
+    "kf_pos": 27,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w53.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w54.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004395.png",
+    "kf_pos": 21,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w54.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w55.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004470.png",
+    "kf_pos": 15,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w55.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w56.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004545.png",
+    "kf_pos": 9,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w56.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w57.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004620.png",
+    "kf_pos": 3,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w57.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w58.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004770.png",
+    "kf_pos": 72,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w58.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w59.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004845.png",
+    "kf_pos": 66,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w59.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w60.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004920.png",
+    "kf_pos": 60,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w60.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w61.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_004995.png",
+    "kf_pos": 54,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w61.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w62.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_005070.png",
+    "kf_pos": 48,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w62.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w63.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_005145.png",
+    "kf_pos": 42,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w63.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w64.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_005220.png",
+    "kf_pos": 36,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w64.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w65.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_005295.png",
+    "kf_pos": 30,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w65.mp4",
+    "cut_at_start": false,
+    "scene_id": 4
+  },
+  {
+    "gray": "/workspace/ltx_windows/w66.mp4",
+    "keyframe": "/workspace/q_kf_recolored/ref_005370.png",
+    "kf_pos": 24,
+    "prompt": "1940s period film scene, natural realistic period-accurate colour, feldgrau grey-green uniforms, warm natural skin, grey-taupe suit, muted believable period palette, out-of-focus foreground neutral grey; only the colour changes, do not add, remove, move or alter anything.",
+    "out": "/workspace/ltx_co_out/w66.mp4",
+    "cut_at_start": false,
+    "extra_anchors": [
+      {
+        "path": "/workspace/q_kf_recolored/ref_005387.png",
+        "pos": 43,
+        "weight": 0.95
+      }
+    ],
+    "scene_id": 4
+  }
+]

ltx_driver.py

@@ -0,0 +1,186 @@
+#!/usr/bin/env python3
+"""ltx_driver.py — LTX-2.3-22b-distilled IC-LoRA colorization, LOAD-ONCE + temporeel naadloos.
+STRUCTURELE FIX voor venster-naden (ml-engineer + ac64 consult, 28 jun 2026):
+- Carry-over: laatste N frames van venster K -> conditioning op frame_idx 0..N-1 van venster K+1
+  (via ic_lora ImageConditioningInput op willekeurige frame_idx) -> venster start vanuit vorig eind -> naadloos.
+- Optioneel globaal anker-keyframe in elk venster (palet globaal pinnen).
+- Optioneel 8-frame cosine-crossfade bij stitch voor rest-gladheid.
+- Model laadt 1x (i.p.v. 67x in ltx_full_loop.sh) -> ~55min i.p.v. ~102min.
+
+COMPUTE OPTIMALISATIES (A100-SXM4-80GB, 28 jun 2026):
+- flash-attn 2: DIFFUSERS_ATTN_BACKEND=flash -> LTX dispatch_attention_fn gebruikt flash-attn 2.
+  Op Ampere (sm80) is dit de snelste attentie-backend. SageAttention NIET gebruiken op A100
+  (SM90-FP8 variant is Hopper-only; FP16 variant geeft geen winst boven flash-attn 2).
+- TF32: torch.backends.cuda.matmul.allow_tf32=True (default op PyTorch>=1.7 maar hier expliciet).
+- CFG-skip: guidance_scale=1.0 (distilled model heeft guidance ingebakken). Als de pipeline
+  met guidance_scale>1 draait, doet het 2 DiT-forwards per stap = 2x de compute. Met 1.0: 1 forward.
+  DIAGNOSE EERST: .venv/bin/python -m ltx_pipelines.ic_lora --help | grep -i guid
+- torch.compile: mode='reduce-overhead', dynamic=False (vaste shapes 81f/960x544). Alleen DiT,
+  niet VAE/Gemma. Eerste compile ~3-4 min, amortiseert over 67 vensters.
+  max-autotune NIET gebruiken op 80GB (OOM-risico met 46GB model).
+
+LET OP: de ltx_pipelines.ic_lora API-class-naam kan per repo-versie verschillen.
+Valideer op de instance: `python -c "import ltx_pipelines.ic_lora as m; print(dir(m))"`.
+Native import faalt -> subprocess-fallback (correct, minder efficient; compile dan niet actief).
+
+Manifest (JSON): [{"gray":"wK.mp4","keyframe":"ref_X.png","kf_pos":40,"prompt":"...","out":"wK.mp4","cut_at_start":false}, ...]
+Run: DIFFUSERS_ATTN_BACKEND=flash python ltx_driver.py manifest.json \
+  --ck ... --lora ... --gemma ... --num-frames 81 --width 960 --height 544 --steps 8 \
+  --guidance-scale 1.0 --compile --carry-over 2 --crossfade 8 --stitch-out full_seamless.mp4 --fps 30
+"""
+# EERST: flash-attn backend instellen VOOR elke diffusers/ltx import
+import os
+_attn_backend = os.environ.get('DIFFUSERS_ATTN_BACKEND', 'flash')
+os.environ['DIFFUSERS_ATTN_BACKEND'] = _attn_backend
+
+import sys, json, time, argparse, tempfile, subprocess, shutil
+from pathlib import Path
+
+import torch
+# TF32: op A100 versnelt matmul ~1.5x bij bf16. Standaard aan in PyTorch>=1.7 maar hier expliciet.
+torch.backends.cuda.matmul.allow_tf32 = True
+torch.backends.cudnn.allow_tf32 = True
+
+def parse_args():
+    p = argparse.ArgumentParser()
+    p.add_argument('manifest'); p.add_argument('--ck', required=True); p.add_argument('--lora', required=True)
+    p.add_argument('--gemma', required=True); p.add_argument('--num-frames', type=int, default=81)
+    p.add_argument('--width', type=int, default=960); p.add_argument('--height', type=int, default=544)
+    p.add_argument('--steps', type=int, default=8); p.add_argument('--seed', type=int, default=42)
+    p.add_argument('--lora-scale', type=float, default=1.0); p.add_argument('--carry-over', type=int, default=2)
+    p.add_argument('--crossfade', type=int, default=8); p.add_argument('--carry-weight-base', type=float, default=0.85)
+    p.add_argument('--carry-weight-decay', type=float, default=0.20); p.add_argument('--global-anchor', default=None)
+    p.add_argument('--skip-stage2', action='store_true', default=True); p.add_argument('--prompt', default=None)
+    p.add_argument('--stitch-out', default=None); p.add_argument('--fps', type=int, default=30)
+    # A100 compute opts:
+    p.add_argument('--guidance-scale', type=float, default=1.0,
+                   help='CFG guidance. 1.0=single DiT forward/stap (distilled). >1 = 2 forwards = 2x trager.')
+    p.add_argument('--compile', action='store_true', default=False,
+                   help='torch.compile de DiT (reduce-overhead, dynamic=False). Eerste venster ~3-4 min trager.')
+    p.add_argument('--compile-mode', default='reduce-overhead',
+                   help='torch.compile mode. reduce-overhead=veilig op 80GB. max-autotune=OOM-risico.')
+    return p.parse_args()
+
+def _apply_compile(pipe, mode):
+    """Compileer de DiT-transformer. Niet de VAE of text encoder (wisselende shapes / 1x gebruik)."""
+    # Zoek het DiT-object: common attributen in ltx_pipelines en diffusers
+    dit = None
+    for attr in ('transformer', 'dit', 'model', 'unet'):
+        if hasattr(pipe, attr):
+            candidate = getattr(pipe, attr)
+            if callable(getattr(candidate, 'forward', None)):
+                dit = candidate; break
+    if dit is None:
+        print("[DRIVER] compile: DiT niet gevonden in pipeline — compile overgeslagen", flush=True); return
+    print(f"[DRIVER] compile: torch.compile({attr}, mode='{mode}', dynamic=False) ...", flush=True)
+    t0 = time.time()
+    setattr(pipe, attr, torch.compile(dit, mode=mode, dynamic=False))
+    print(f"[DRIVER] compile klaar ({round(time.time()-t0)}s) — eerste venster triggert kernel-compilatie", flush=True)
+
+def _check_cfg(pipe, a):
+    """Diagnose: print de effectieve guidance_scale zodat CFG-skip verifieerbaar is."""
+    gs = getattr(pipe, '_guidance_scale', None) or getattr(pipe, 'guidance_scale', None) or a.guidance_scale
+    n_forwards = 2 if float(gs) > 1.0 else 1
+    print(f"[DRIVER] CFG: guidance_scale={gs} -> {n_forwards} DiT forward(s)/stap "
+          f"(bij 8 steps: {8*n_forwards} forwards/venster)", flush=True)
+    if n_forwards == 2:
+        print("[DRIVER] WAARSCHUWING: guidance_scale>1 gedetecteerd. Gebruik --guidance-scale 1.0 "
+              "of voeg '--guidance-scale 1.0' toe aan CLI voor 2x speedup.", flush=True)
+
+def load_pipeline(a):
+    # Rapporteer welke attentie-backend actief is
+    print(f"[DRIVER] DIFFUSERS_ATTN_BACKEND={os.environ.get('DIFFUSERS_ATTN_BACKEND','native')}", flush=True)
+    try:
+        from ltx_pipelines.ic_lora.inference import ICLoRAInference
+        pipe = ICLoRAInference(distilled_checkpoint_path=a.ck, lora_path=a.lora, lora_scale=a.lora_scale,
+                               gemma_root=a.gemma, skip_stage2=a.skip_stage2)
+        print("[DRIVER] native ICLoRAInference geladen", flush=True)
+        _check_cfg(pipe, a)
+        if a.compile:
+            _apply_compile(pipe, a.compile_mode)
+        return pipe, 'native'
+    except (ImportError, AttributeError) as e:
+        print(f"[DRIVER] native import faalt ({e}) -> subprocess-fallback "
+              f"(compile niet actief in subprocess-mode)", flush=True)
+        return None, 'subprocess'
+
+def run_native(pipe, w, conds, a):
+    # guidance_scale=1.0 = single forward per stap (CFG-skip voor distilled model)
+    kwargs = dict(prompt=w.get('prompt', a.prompt or ''), video_conditioning_path=w['gray'],
+                  video_conditioning_weight=1.0, image_conditioning=conds, num_frames=a.num_frames,
+                  width=a.width, height=a.height, seed=a.seed, num_inference_steps=a.steps,
+                  output_path=w['out'])
+    # Pas guidance_scale toe als de pipeline het accepteert
+    try:
+        pipe.run(guidance_scale=a.guidance_scale, **kwargs)
+    except TypeError:
+        # Oudere API zonder guidance_scale parameter
+        pipe.run(**kwargs)
+
+def run_subprocess(w, conds, a):
+    cmd = [sys.executable, '-m', 'ltx_pipelines.ic_lora', '--distilled-checkpoint-path', a.ck,
+           '--lora', a.lora, str(a.lora_scale), '--gemma-root', a.gemma,
+           '--video-conditioning', w['gray'], '1.0', '--num-frames', str(a.num_frames),
+           '--width', str(a.width), '--height', str(a.height), '--seed', str(a.seed),
+           '--frame-rate', str(a.fps), '--output-path', w['out'], '--prompt', w.get('prompt', a.prompt or '')]
+    if a.skip_stage2: cmd.append('--skip-stage-2')
+    # CFG-skip: probe of de CLI --guidance-scale accepteert (eenmalig) en voeg toe
+    if a.guidance_scale <= 1.0:
+        cmd += ['--guidance-scale', str(a.guidance_scale)]
+    for (path, pos, wt) in conds: cmd += ['--image', path, str(pos), str(wt)]
+    # Geef flash-attn backend door aan subprocess via env
+    env = os.environ.copy()
+    env['DIFFUSERS_ATTN_BACKEND'] = os.environ.get('DIFFUSERS_ATTN_BACKEND', 'flash')
+    result = subprocess.run(cmd, env=env)
+    if result.returncode != 0:
+        # Als --guidance-scale niet herkend: opnieuw zonder die flag
+        cmd2 = [c for c in cmd if c not in ['--guidance-scale', str(a.guidance_scale)]]
+        subprocess.run(cmd2, env=env, check=True)
+
+def last_frames(video, n, td):
+    pr = subprocess.run(['ffprobe','-v','quiet','-select_streams','v:0','-count_packets',
+                         '-show_entries','stream=nb_read_packets','-of','csv=p=0',video], capture_output=True, text=True)
+    try: total = int(pr.stdout.strip())
+    except Exception: total = 81
+    out = []
+    for i in range(n):
+        fi = total - n + i; png = os.path.join(td, f'carry_{i:03d}.png')
+        subprocess.run(['ffmpeg','-y','-i',video,'-vf',f'select=eq(n\\,{fi})','-vsync','0','-frames:v','1',png],capture_output=True)
+        if os.path.exists(png): out.append(png)
+    return out
+
+def stitch(paths, xf, fps, out):
+    if xf == 0 or len(paths) == 1:
+        lst = tempfile.NamedTemporaryFile(mode='w', suffix='.txt', delete=False)
+        for p in paths: lst.write(f"file '{p}'\n")
+        lst.close(); subprocess.run(['ffmpeg','-y','-f','concat','-safe','0','-i',lst.name,'-c','copy',out],check=True); os.unlink(lst.name); return
+    dur = 81/fps; xfd = xf/fps; inputs = []
+    for p in paths: inputs += ['-i', p]
+    parts = []; cur = '[0:v]'
+    for k in range(1, len(paths)):
+        off = max(0, k*dur - k*xfd); nl = f'[v{k}]' if k < len(paths)-1 else ''
+        parts.append(f"{cur}[{k}:v]xfade=transition=fade:duration={xfd:.4f}:offset={off:.4f}{nl}"); cur = nl
+    subprocess.run(['ffmpeg','-y']+inputs+['-filter_complex','; '.join(parts),'-fps_mode','vfr',out],check=True)
+
+def main():
+    a = parse_args(); manifest = json.load(open(a.manifest)); td = tempfile.mkdtemp(prefix='ltx_co_')
+    print(f"[DRIVER] {len(manifest)} vensters, carry-over={a.carry_over}, crossfade={a.crossfade}", flush=True)
+    t0 = time.time(); pipe, mode = load_pipeline(a); print(f"[DRIVER] load {round(time.time()-t0)}s mode={mode}", flush=True)
+    rendered = []; prev = None
+    for idx, w in enumerate(manifest):
+        tw = time.time(); conds = []
+        if prev and not w.get('cut_at_start', False):
+            cn = min(a.carry_over, len(prev))
+            for ci, cf in enumerate(prev[-cn:]):
+                conds.append((cf, cn-1-ci, max(0.3, a.carry_weight_base - ci*a.carry_weight_decay)))
+        if a.global_anchor and (not prev or w.get('cut_at_start')): conds.append((a.global_anchor, 0, 0.4))
+        conds.append((w['keyframe'], w.get('kf_pos', a.num_frames//2), 1.0))
+        print(f"[DRIVER] venster {idx+1}/{len(manifest)} {Path(w['out']).name} ({len(conds)} conds)", flush=True)
+        (run_native if mode=='native' else (lambda p,ww,c,aa: run_subprocess(ww,c,aa)))(pipe, w, conds, a) if mode=='native' else run_subprocess(w, conds, a)
+        if a.carry_over > 0: prev = last_frames(w['out'], a.carry_over, td)
+        rendered.append(w['out']); print(f"[DRIVER] venster {idx+1} klaar ({round(time.time()-tw)}s)", flush=True)
+    if a.stitch_out: print(f"[DRIVER] stitch -> {a.stitch_out}", flush=True); stitch(rendered, a.crossfade, a.fps, a.stitch_out)
+    shutil.rmtree(td, ignore_errors=True); print("[DRIVER] ALL_DONE", flush=True)
+
+if __name__ == '__main__':
+    main()

ltx_loadonce.py

@@ -0,0 +1,422 @@
+#!/usr/bin/env python3
+"""ltx_loadonce.py v3 -- LOAD-ONCE + PROMPT-CACHE + FP8-CAST + carry-over (28 jun 2026).
+
+OOM-HISTORY (A100 80GB, 79.25GB usable):
+  v1: Gemma 46GB + DiT bf16 43GB gelijktijdig = 89GB -> OOM.
+  v2 (gemma-free): DiT bf16 43GB permanent + VAE-residu 44GB = 87GB -> OOM bij venster 2.
+  v3 (dit): DiT fp8 ~22GB + VAE-residu ~44GB + activaties ~12GB = ~78GB -> past.
+
+ARCHITECTUUR:
+  1. Pipeline aanmaken met QuantizationKind.FP8_CAST.to_policy(CK):
+     DiffusionStage._build_transformer() past fp8-cast toe -> DiT ~22GB (was 43GB).
+  2. Prompt EENMALIG encoderen, Gemma 46GB volledig vrijgeven.
+  3. DiT FP8 EENMALIG bouwen, permanent op GPU houden (geen CPU-swap).
+  4. _transformer_ctx patch: geeft pre-built fp8 DiT terug, geen rebuild per venster.
+  5. Carry-over: laatste 2 frames van vorig venster als conditioning voor temporele naad.
+
+VRAM-BUDGET:
+  DiT fp8:     ~22GB  (permanent op GPU)
+  Gemma:        0GB   (vrijgegeven na cache-encode)
+  VAE-residu:  ~44GB  (VideoDecoder.to("meta") bug, maar accumuleert niet)
+  Activaties:  ~12GB  (DiT forward, 8 denoising stappen)
+  TOTAAL PIEK: ~78GB < 79.25GB usable -- past.
+
+Gebruik:
+  PYTORCH_ALLOC_CONF=expandable_segments:True DIFFUSERS_ATTN_BACKEND=flash \
+  .venv/bin/python ltx_loadonce.py manifest.json [--compile] [--limit 3]
+"""
+
+# expandable_segments VOOR torch-import (env-var wordt gelezen bij CUDA-init)
+# NB: PYTORCH_CUDA_ALLOC_CONF is deprecated in PyTorch>=2.5, gebruik PYTORCH_ALLOC_CONF
+import os
+os.environ.setdefault('PYTORCH_ALLOC_CONF', 'expandable_segments:True')
+os.environ.setdefault('PYTORCH_CUDA_ALLOC_CONF', 'expandable_segments:True')  # compat
+os.environ.setdefault('DIFFUSERS_ATTN_BACKEND', 'flash')
+
+import gc, json, time, sys, argparse, subprocess
+import torch
+torch.backends.cuda.matmul.allow_tf32 = True
+torch.backends.cudnn.allow_tf32 = True
+
+from ltx_pipelines.ic_lora import ICLoraPipeline
+from ltx_pipelines.utils.args import ImageConditioningInput
+from ltx_core.loader import LoraPathStrengthAndSDOps, LTXV_LORA_COMFY_RENAMING_MAP
+from ltx_core.model.transformer.compiling import CompilationConfig
+from ltx_core.model.video_vae import TilingConfig, get_video_chunks_number
+from ltx_pipelines.utils.media_io import encode_video
+from ltx_pipelines.utils.types import OffloadMode
+
+# ─── ARGS ────────────────────────────────────────────────────────────────────
+ap = argparse.ArgumentParser()
+ap.add_argument('manifest')
+ap.add_argument('--compile', action='store_true')
+ap.add_argument('--limit', type=int, default=0, help='Test: render max N vensters')
+ap.add_argument('--carry', type=int, default=2)
+ap.add_argument('--offload', default='none')
+a = ap.parse_args()
+
+CK    = '/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors'
+UP    = '/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors'
+LORA  = '/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors'
+GEMMA = '/workspace/models/LTX-2'
+
+manifest = json.load(open(a.manifest))
+n_total = len(manifest)
+if a.limit:
+    manifest = manifest[:a.limit]
+    print(f"[DRIVER] TEST-MODE: {len(manifest)}/{n_total} vensters", flush=True)
+
+prompts_set = set(w['prompt'] for w in manifest)
+print(f"[DRIVER] Unieke prompts in manifest: {len(prompts_set)}", flush=True)
+if len(prompts_set) > 1:
+    print("[DRIVER] WAARSCHUWING: meerdere unieke prompts -- cache gebruikt prompt[0]", flush=True)
+SHARED_PROMPT = manifest[0]['prompt']
+
+# ─── PIPELINE LADEN ──────────────────────────────────────────────────────────
+t0 = time.time()
+pipe = ICLoraPipeline(
+    distilled_checkpoint_path=CK,
+    spatial_upsampler_path=UP,
+    gemma_root=GEMMA,
+    loras=(LoraPathStrengthAndSDOps(LORA, 1.0, LTXV_LORA_COMFY_RENAMING_MAP),),
+    quantization=None,  # fp8 via optimum.quanto NA build (native fp8-cast = H100-only, niet A100)
+    compilation_config=CompilationConfig(mode='reduce-overhead', dynamic=False) if a.compile else None,
+    offload_mode=OffloadMode(a.offload),
+)
+tiling = TilingConfig.default()
+print(f"[DRIVER] Pipeline geladen ({round(time.time()-t0)}s, compile={a.compile})", flush=True)
+
+# ─── VOLGORDE IS KRITIEK: GEMMA EERST, DAN DiT ──────────────────────────────
+# Gemma = 46GB, DiT = 35GB. Gelijktijdig = 81GB > 80GB = OOM.
+# Correct: 1) Gemma laden/encoderen/VRIJGEVEN (46GB -> 0GB)
+#           2) DiT EENMALIG laden + permanent houden (35GB)
+# Peak: max(46GB, 35GB + 17GB activatie) = 52GB -- past ruim in 80GB.
+
+# ─── STAP 1: PROMPT-CACHE (Gemma 46GB tijdelijk, dan vrijgeven) ──────────────
+print(f"[CACHE] Prompt encoding 1x voor {len(manifest)} vensters...", flush=True)
+t_enc = time.time()
+# no_grad (niet inference_mode): inference_mode-tensors in VAE conv3d geven
+# "Inference tensors do not track version counter" vanwege in-place ops in CausalConv3d.
+# no_grad is voldoende om gradienten uit te schakelen zonder version-counter-problemen.
+with torch.no_grad():
+    _ctx_list = pipe.prompt_encoder(
+        [SHARED_PROMPT],
+        enhance_first_prompt=False,
+        enhance_prompt_seed=42,
+    )
+cached_ctx = _ctx_list[0]
+vram_after_enc = torch.cuda.memory_allocated() // 1024**3
+print(f"[CACHE] Encoding klaar ({round(time.time()-t_enc)}s), VRAM={vram_after_enc}GB", flush=True)
+
+# Gemma volledig vrijgeven: del Builder-referentie zodat Python GC kan opruimen
+del pipe.prompt_encoder
+gc.collect()
+torch.cuda.empty_cache()
+vram_freed = torch.cuda.memory_allocated() // 1024**3
+print(f"[CACHE] Gemma freed: {vram_after_enc}GB -> {vram_freed}GB VRAM allocated", flush=True)
+
+# Lambda-stub: ICLoraPipeline.__call__ doet (ctx_p,) = self.prompt_encoder([prompt], ...)
+# Onze lambda accepteert dezelfde args en retourneert direct de gecachte embedding.
+pipe.prompt_encoder = lambda prompts, **kw: [cached_ctx]
+print("[CACHE] prompt_encoder = cache-lambda actief (0 GPU-gebruik per venster)", flush=True)
+
+# Start memory history recording VROEG zodat allocaties traceerbaar zijn
+torch.cuda.memory._record_memory_history(max_entries=500000)
+print("[SNAP] memory history recording gestart", flush=True)
+
+# ─── PATCH: gpu_model MONITOR ─────────────────────────────────────────────
+# Meten WANNEER en HOEVEEL gpu_model.__exit__ vrijmaakt (VAE decoder lifecycle).
+import ltx_pipelines.utils.gpu_model as _gm_module
+import ltx_pipelines.utils.helpers as _helpers_module
+from contextlib import contextmanager as _cm
+
+_orig_gpu_model = _gm_module.gpu_model
+_orig_cleanup = _helpers_module.cleanup_memory
+
+def _patched_cleanup():
+    v0 = torch.cuda.memory_allocated() // 1024**3
+    _orig_cleanup()
+    v1 = torch.cuda.memory_allocated() // 1024**3
+    print(f"[DIAG-cleanup] {v0}GB -> {v1}GB", flush=True)
+
+_helpers_module.cleanup_memory = _patched_cleanup
+
+@_cm
+def _patched_gpu_model(model):
+    try:
+        yield model
+    finally:
+        v0 = torch.cuda.memory_allocated() // 1024**3
+        torch.cuda.synchronize()
+        model.to("meta")
+        v1 = torch.cuda.memory_allocated() // 1024**3
+        print(f"[DIAG-gpu_model] {type(model).__name__} to(meta): {v0}GB -> {v1}GB", flush=True)
+        _patched_cleanup()
+
+_gm_module.gpu_model = _patched_gpu_model
+# Patch also in blocks.py (VideoDecoder uses it from there)
+import ltx_pipelines.utils.blocks as _blocks_module
+_blocks_module.gpu_model = _patched_gpu_model
+print("[DIAG] gpu_model + cleanup_memory gepatcht voor VRAM-monitoring", flush=True)
+
+# ─── STAP 2: DiT LADEN + FP8 QUANTISATIE (optimum.quanto) ───────────────────
+# Native LTX fp8-cast gebruikt Triton-kernel fp8e4nv = H100-only, niet op A100.
+# Oplossing: optimum.quanto qfloat8 = pure Python fp8-opslag (float8_e4m3fn), werkt
+# overal. Gewichten worden in fp8 opgeslagen (~22GB), upcast naar bf16 voor compute.
+#
+# VRAM-budget (A100 80GB = 79.25GB usable):
+#   DiT bf16 build:  43GB  (tijdelijk, tijdens quantize)
+#   DiT fp8 na quant: ~22GB  (permanent op GPU, geen CPU-swap nodig)
+#   Quantize piek:   43+22=65GB (beide tegelijk, maar bf16 vrijgegeven na freeze)
+#   VAE-decode residu: ~44GB  (niet opgeheven door to("meta"), accumuleert niet)
+#   DiT-forward piek: +12GB activaties
+#   STABIEL PIEK:    22+44+12 = 78GB < 79.25GB -- past.
+from contextlib import contextmanager
+from optimum.quanto import quantize as _quanto_quantize, qfloat8 as _qf8, freeze as _quanto_freeze
+
+print("[LOADONCE] DiT laden (bf16, 1x)...", flush=True)
+t_dit = time.time()
+with torch.no_grad():
+    _pre_built_dit = pipe.stage_1._build_transformer()
+vram_bf16 = torch.cuda.memory_allocated() // 1024**3
+print(f"[LOADONCE] DiT bf16 geladen ({round(time.time()-t_dit)}s), VRAM={vram_bf16}GB", flush=True)
+
+print("[LOADONCE] optimum.quanto fp8 quantisatie...", flush=True)
+t_q = time.time()
+# VOOR quantize: registreer id(originele_nn_linear) -> vm_module_attrnaam
+# zodat we na quantize de stale referenties CORRECT kunnen herverbinden.
+# Probleem: video_preprocessor.patchify_proj en audio_preprocessor.patchify_proj
+# heten BEIDEN 'patchify_proj' maar zijn vm.patchify_proj vs vm.audio_patchify_proj.
+# Naam-gebaseerde lookup werkt niet; ID-gebaseerde lookup wel.
+_vm = _pre_built_dit.velocity_model
+_linear_id_to_vmattr = {}
+for _attr in dir(_vm):
+    if not _attr.startswith('_'):
+        _obj = getattr(_vm, _attr, None)
+        if isinstance(_obj, torch.nn.Linear):
+            _linear_id_to_vmattr[id(_obj)] = _attr
+
+_quanto_quantize(_pre_built_dit, weights=_qf8)
+
+# NA quantize: vm._modules['patchify_proj'] = QLinear (nieuw), originele nn.Linear.weight=None.
+# TransformerArgsPreprocessors (geen nn.Module) houden stale originele Linear.
+# Fix via ID-mapping: stale.id -> vmattr -> vm.{vmattr} (=QLinear)
+def _fix_stale_by_id(obj, vm, id_map, depth=0):
+    if depth > 6: return
+    for k, v in list(getattr(obj, '__dict__', {}).items()):
+        if isinstance(v, torch.nn.Linear) and getattr(v, 'weight', True) is None:
+            vmattr = id_map.get(id(v))
+            if vmattr:
+                replacement = getattr(vm, vmattr, None)
+                if replacement is not None:
+                    setattr(obj, k, replacement)
+                    print(f"[FIX] {type(obj).__name__}.{k} -> vm.{vmattr} ({type(replacement).__name__})", flush=True)
+        elif not isinstance(v, (torch.nn.Module, torch.Tensor)) and hasattr(v, '__dict__'):
+            _fix_stale_by_id(v, vm, id_map, depth+1)
+
+for _preprocessor in [_vm.video_args_preprocessor, getattr(_vm, 'audio_args_preprocessor', None)]:
+    if _preprocessor is not None:
+        _fix_stale_by_id(_preprocessor, _vm, _linear_id_to_vmattr)
+
+_quanto_freeze(_pre_built_dit)
+torch.cuda.empty_cache()
+gc.collect()
+vram_dit = torch.cuda.memory_allocated() // 1024**3
+print(f"[LOADONCE] DiT fp8 klaar ({round(time.time()-t_q)}s), VRAM={vram_dit}GB "
+      f"(-{vram_bf16-vram_dit}GB tov bf16)", flush=True)
+print(f"[LOADONCE] VRAM-budget: {vram_dit}GB DiT + 44GB VAE-residu + 12GB act = ~{vram_dit+56}GB < 79.25GB", flush=True)
+
+@contextmanager
+def _permanent_transformer_ctx(**kwargs):
+    """FP8 DiT permanent op GPU -- geen CPU-swap (to("cpu") hangt bij quanto-modellen).
+    Budget: DiT_fp8(~17GB) + VAE-residu(~44GB) = ~61GB base.
+    DiT-forward piek: +16GB activaties = ~77GB < 80GB OK.
+    VAE-decode piek (window 2+): 17+44+17=78GB -- net onder 79.25GB grens.
+    """
+    yield _pre_built_dit  # DiT fp8 forward (8 denoising stappen)
+    # Na DiT forward: activatie-tensors vrijgeven
+    gc.collect()
+    torch.cuda.empty_cache()
+    print(f"[LOADONCE] Post-DiT: VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+# Patch stage_1. stage_2 niet aangesproken bij skip_stage_2=True maar patch als voorzorg.
+pipe.stage_1._transformer_ctx = _permanent_transformer_ctx
+pipe.stage_2._transformer_ctx = _permanent_transformer_ctx
+print("[LOADONCE] _transformer_ctx gepatcht", flush=True)
+
+# ─── PATCH: tiled VAE encode voor image_conditioner ──────────────────────────
+# ICLoraPipeline._create_conditionings roept append_ic_lora_reference_video_conditionings
+# aan met tiling_config=None -> grote Conv3d allocatie (17GB) bij hoge resolutie.
+# Met DiT_fp8(17GB) + VAE-residu(45GB) = 62GB base: 17.25GB vrij < 17GB benodigde alloc.
+# Fix: patch de functie om TilingConfig.default() (768px tiles) door te geven.
+# Peak per tile: (768/960)^2 * 17GB ≈ 11GB, 62+11=73GB < 79.25GB -> past.
+import ltx_pipelines.iclora_utils as _icu_mod
+import ltx_pipelines.ic_lora as _ic_lora_mod
+
+_orig_append_ic = _icu_mod.append_ic_lora_reference_video_conditionings
+
+# 512px spatial tiles: (512/768)^2 * 13.62GB ≈ 6GB per tile, past ruim in 17GB vrij.
+from ltx_core.model.video_vae.tiling import SpatialTilingConfig as _STC, TemporalTilingConfig as _TTC
+_ENCODE_TILING = TilingConfig(
+    spatial_config=_STC(tile_size_in_pixels=512, tile_overlap_in_pixels=32),
+    temporal_config=_TTC(tile_size_in_frames=80, tile_overlap_in_frames=24),
+)
+
+def _tiled_append_ic(*args, tiling_config=None, **kwargs):
+    """Forceer tiled VAE encode (512px tiles) om OOM bij grote Conv3d te voorkomen."""
+    return _orig_append_ic(*args, tiling_config=_ENCODE_TILING, **kwargs)
+
+_icu_mod.append_ic_lora_reference_video_conditionings = _tiled_append_ic
+_ic_lora_mod.append_ic_lora_reference_video_conditionings = _tiled_append_ic
+print("[LOADONCE] Tiled VAE encode gepatcht (768px tiles) -- render-loop start", flush=True)
+
+# ─── CARRY-OVER HELPER ───────────────────────────────────────────────────────
+os.makedirs('/tmp/carry', exist_ok=True)
+
+def last_frames(video_path, n):
+    r = subprocess.run(
+        ['ffprobe', '-v', 'quiet', '-select_streams', 'v:0', '-count_packets',
+         '-show_entries', 'stream=nb_read_packets', '-of', 'csv=p=0', video_path],
+        capture_output=True, text=True
+    )
+    try:
+        total = int(r.stdout.strip())
+    except Exception:
+        total = 81
+    frames = []
+    for ci in range(n):
+        frame_idx = total - 1 - ci  # ci=0 = laatste frame -> positie 0 in volgend venster
+        png = f'/tmp/carry/c{ci}.png'
+        subprocess.run(
+            ['ffmpeg', '-y', '-i', video_path,
+             '-vf', f'select=eq(n\\,{frame_idx})', '-vsync', '0', '-frames:v', '1', png],
+            capture_output=True
+        )
+        if os.path.exists(png):
+            frames.append((png, ci))
+    return frames
+
+# ─── RENDER LOOP ─────────────────────────────────────────────────────────────
+prev_out = None
+t_total = time.time()
+
+for i, w in enumerate(manifest):
+    tw = time.time()
+    imgs = []
+
+    # Carry-over: laatste N gekleurde frames van vorig venster als conditioning pos 0..N-1
+    if prev_out and not w.get('cut_at_start', False):
+        co_frames = last_frames(prev_out, a.carry)
+        for (cf_path, ci) in co_frames:
+            weight = round(0.85 - ci * 0.20, 2)
+            imgs.append(ImageConditioningInput(path=cf_path, frame_idx=ci, strength=weight))
+
+    # Keyframe-conditioning van dit venster
+    imgs.append(ImageConditioningInput(
+        path=w['keyframe'],
+        frame_idx=w.get('kf_pos', 40),
+        strength=1.0
+    ))
+
+    vram_pre = torch.cuda.memory_allocated() // 1024**3
+    print(f"[{i+1}/{len(manifest)}] {os.path.basename(w['out'])} "
+          f"({len(imgs)} conds, VRAM={vram_pre}GB) ...", flush=True)
+
+    os.makedirs(os.path.dirname(w['out']), exist_ok=True)
+    # Geef eventueel gereserveerde (maar ongebruikte) CUDA-blokken vrij vóór VAE-encode
+    torch.cuda.empty_cache()
+    _vram_pre_pipe = torch.cuda.memory_allocated() // 1024**3
+    print(f"[PIPE] start VRAM={_vram_pre_pipe}GB", flush=True)
+    with torch.no_grad():
+        video, audio = pipe(
+            prompt=w['prompt'],   # lambda negeert dit, cached_ctx wordt gebruikt
+            seed=42,
+            height=1088,
+            width=1920,
+            num_frames=81,
+            frame_rate=24,
+            images=imgs,
+            video_conditioning=[(w['gray'], 1.0)],
+            tiling_config=tiling,
+            conditioning_attention_strength=1.0,
+            skip_stage_2=True,
+            conditioning_attention_mask=None,
+        )
+
+    _vram_post_pipe = torch.cuda.memory_allocated() // 1024**3
+    print(f"[PIPE] eind VRAM={_vram_post_pipe}GB (voor encode_video)", flush=True)
+
+    # Window 1: snapshot wordt genomen na encode_video (recording al actief)
+
+    encode_video(
+        video=video,
+        fps=24,
+        audio=audio,
+        output_path=w['out'],
+        video_chunks_number=get_video_chunks_number(81, tiling),
+    )
+    _vram_post_enc = torch.cuda.memory_allocated() // 1024**3
+    print(f"[PIPE] na encode_video VRAM={_vram_post_enc}GB", flush=True)
+    prev_out = w['out']
+    elapsed = round(time.time() - tw)
+
+    # Diagnostiek: Zoek grote GPU-tensors voor del
+    _vram_before_del = torch.cuda.memory_allocated() // 1024**3
+    print(f"[DEBUG] VRAM voor del: {_vram_before_del}GB", flush=True)
+
+    del video, audio
+    gc.collect()
+    torch.cuda.empty_cache()
+    torch.cuda.synchronize()
+    _vram_post = torch.cuda.memory_allocated() // 1024**3
+    print(f"[DEBUG] VRAM post-cleanup: {_vram_post}GB", flush=True)
+
+    # Window 1: snapshot analyseren (ALL states, ALL sizes)
+    if i == 0:
+        try:
+            _snap = torch.cuda.memory._snapshot()
+            torch.cuda.memory._record_memory_history(enabled=None)
+
+            # Verzamel ALLE actieve blokken (active_allocated + active_pending_free)
+            _state_totals = {}
+            _all_active = []
+            for _seg in _snap.get('segments', []):
+                for _blk in _seg.get('blocks', []):
+                    _st = _blk.get('state', 'unknown')
+                    _sz = _blk.get('size', 0)
+                    _state_totals[_st] = _state_totals.get(_st, 0) + _sz
+                    if _st in ('active_allocated', 'active_pending_free') and _sz > 10 * 1024**2:
+                        _frames = _blk.get('frames', [])
+                        _trace = ' -> '.join(
+                            f"{_f.get('name','?')}({os.path.basename(_f.get('filename','?'))}:{_f.get('line','?')})"
+                            for _f in _frames[-8:]
+                        ) if _frames else 'NO_TRACE'
+                        _all_active.append((_sz / 1024**3, _st, _trace))
+
+            # Per-state summary
+            print(f"[SNAP] Block states totalen:", flush=True)
+            for _st, _stb in sorted(_state_totals.items(), key=lambda x: -x[1]):
+                print(f"[SNAP]   {_st}: {_stb/1024**3:.2f}GB", flush=True)
+
+            # Top actieve blokken
+            _all_active.sort(reverse=True)
+            print(f"[SNAP] Top 40 actieve blokken (>10MB):", flush=True)
+            _seen_gb = 0
+            for _gb, _st, _tr in _all_active[:40]:
+                _seen_gb += _gb
+                print(f"[SNAP]  {_gb:.3f}GB [{_st}] | {_tr}", flush=True)
+            print(f"[SNAP] Top-40 totaal: {_seen_gb:.1f}GB | memory_allocated={_vram_post}GB", flush=True)
+        except Exception as _se:
+            print(f"[SNAP] snapshot fout: {_se}", flush=True)
+            try:
+                torch.cuda.memory._record_memory_history(enabled=None)
+            except Exception:
+                pass
+
+    vram_post = _vram_post
+    print(f"[{i+1}/{len(manifest)}] KLAAR {elapsed}s | VRAM_post={vram_post}GB", flush=True)
+
+total_min = round((time.time() - t_total) / 60, 1)
+per_v = round(total_min * 60 / max(len(manifest), 1))
+print(f"[DRIVER] LOADONCE_DONE -- {len(manifest)} vensters in {total_min} min "
+      f"({per_v}s/venster gemiddeld)", flush=True)

ltx_loadonce_fp8.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""ltx_loadonce.py — LOAD-ONCE + torch.compile LTX-22b carry-over render (taak #6).
+Echte ICLoraPipeline-API (geen subprocess-reload). Model 1x laden + compile 1x (geamortiseerd).
+Carry-over: laatste N frames vorig venster -> ImageConditioningInput op pos 0..N-1.
+Run: .venv/bin/python ltx_loadonce.py manifest.json [--compile] [--limit N]
+"""
+import json, time, os, sys, argparse, subprocess
+import torch
+torch.backends.cuda.matmul.allow_tf32 = True
+torch.backends.cudnn.allow_tf32 = True
+from ltx_pipelines.ic_lora import ICLoraPipeline
+from ltx_pipelines.utils.args import ImageConditioningInput
+from ltx_core.loader import LoraPathStrengthAndSDOps, LTXV_LORA_COMFY_RENAMING_MAP
+from ltx_core.model.transformer.compiling import CompilationConfig
+from ltx_core.model.video_vae import TilingConfig, get_video_chunks_number
+from ltx_pipelines.utils.media_io import encode_video
+from ltx_pipelines.utils.types import OffloadMode
+from ltx_pipelines.utils.quantization_factory import QuantizationKind
+
+ap = argparse.ArgumentParser(); ap.add_argument('manifest')
+ap.add_argument('--compile', action='store_true'); ap.add_argument('--limit', type=int, default=0)
+ap.add_argument('--carry', type=int, default=2); ap.add_argument('--offload', default='none')
+a = ap.parse_args()
+CK='/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors'
+UP='/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors'
+LORA='/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors'
+GEMMA='/workspace/models/LTX-2'
+manifest = json.load(open(a.manifest))
+if a.limit: manifest = manifest[:a.limit]
+
+t0=time.time()
+pipe = ICLoraPipeline(
+    distilled_checkpoint_path=CK, spatial_upsampler_path=None, gemma_root=GEMMA,  # upsampler niet nodig (skip_stage_2)
+    loras=(LoraPathStrengthAndSDOps(LORA, 1.0, LTXV_LORA_COMFY_RENAMING_MAP),),
+    quantization=QuantizationKind.FP8_CAST.to_policy(CK),
+    compilation_config=CompilationConfig(mode='reduce-overhead', dynamic=False) if a.compile else None,
+    offload_mode=OffloadMode(a.offload))
+tiling = TilingConfig.default()
+print(f"PIPELINE_LOADED {round(time.time()-t0)}s (compile={a.compile})", flush=True)
+os.makedirs('/tmp/carry', exist_ok=True)
+
+def last_frames(v, n):
+    r=subprocess.run(['ffprobe','-v','quiet','-select_streams','v:0','-count_packets','-show_entries','stream=nb_read_packets','-of','csv=p=0',v],capture_output=True,text=True)
+    try: tf=int(r.stdout.strip())
+    except: tf=81
+    out=[]
+    for ci in range(n):
+        cf=f'/tmp/carry/c{ci}.png'
+        subprocess.run(['ffmpeg','-y','-i',v,'-vf',f'select=eq(n\\,{tf-1-ci})','-vsync','0','-frames:v','1',cf],capture_output=True)
+        if os.path.exists(cf): out.append((cf,ci))
+    return out
+
+prev=None
+for i,w in enumerate(manifest):
+    tw=time.time(); imgs=[]
+    if prev and not w.get('cut_at_start'):
+        for (cf,ci) in last_frames(prev, a.carry):
+            imgs.append(ImageConditioningInput(path=cf, frame_idx=ci, strength=round(0.85-ci*0.20,2)))
+    imgs.append(ImageConditioningInput(path=w['keyframe'], frame_idx=w.get('kf_pos',40), strength=1.0))
+    video, audio = pipe(prompt=w['prompt'], seed=42, height=1088, width=1920, num_frames=81, frame_rate=24,
+                        images=imgs, video_conditioning=[(w['gray'],1.0)], tiling_config=tiling,
+                        conditioning_attention_strength=1.0, skip_stage_2=True, conditioning_attention_mask=None)
+    encode_video(video=video, fps=24, audio=audio, output_path=w['out'], video_chunks_number=get_video_chunks_number(81, tiling))
+    prev=w['out']
+    print(f"[{i+1}/{len(manifest)}] {os.path.basename(w['out'])} ({round(time.time()-tw)}s)", flush=True)
+print("LOADONCE_DONE", flush=True)

ltx_seamless.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+"""ltx_seamless.py — naadloze LTX-22b colorization-render via carry-over conditioning.
+Per venster: conditioneer op de laatste frames van het VORIGE venster (--image op pos 0,1)
++ de scene-keyframe (--image op kf_pos) -> venster start vanuit vorig eind -> geen naden.
+Gebruikt de proven ltx_pipelines.ic_lora CLI (geen onzekere native API). Stitch + crossfade aan het eind.
+Run: PY=.venv/bin/python python3 ltx_seamless.py manifest.json [--offload-mode none]
+"""
+import json, subprocess, os, sys, time, argparse
+ap = argparse.ArgumentParser(); ap.add_argument('manifest')
+ap.add_argument('--offload-mode', default=None); ap.add_argument('--carry', type=int, default=2)
+ap.add_argument('--stitch-out', default='/workspace/ltx_full_seamless.mp4'); a = ap.parse_args()
+PY='/workspace/LTX-2/.venv/bin/python'
+CK='/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors'
+UP='/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors'
+LORA='/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors'
+GEMMA='/workspace/models/LTX-2'
+manifest = json.load(open(a.manifest))
+os.makedirs('/workspace/ltx_co_out', exist_ok=True); os.makedirs('/tmp/carry', exist_ok=True)
+
+def total_frames(v):
+    r = subprocess.run(['ffprobe','-v','quiet','-select_streams','v:0','-count_packets','-show_entries','stream=nb_read_packets','-of','csv=p=0',v],capture_output=True,text=True)
+    try: return int(r.stdout.strip())
+    except: return 81
+
+def extract_frame(v, idx, out):
+    subprocess.run(['ffmpeg','-y','-i',v,'-vf',f'select=eq(n\\,{idx})','-vsync','0','-frames:v','1',out],capture_output=True)
+    return os.path.exists(out)
+
+prev_out=None; rendered=[]
+for i,w in enumerate(manifest):
+    tw=time.time(); imgs=[]
+    if prev_out and not w.get('cut_at_start'):
+        tf=total_frames(prev_out)
+        for ci in range(a.carry):  # laatste frame -> pos 0, voorlaatste -> pos 1
+            idx=tf-1-ci; cf=f'/tmp/carry/c{ci}.png'
+            if extract_frame(prev_out, idx, cf):
+                imgs.append((cf, ci, round(0.85-ci*0.20,2)))  # pos0=laatste(weight.85), pos1=voorlaatste(.65)
+    imgs.append((w['keyframe'], w.get('kf_pos',40), 1.0))
+    cmd=[PY,'-m','ltx_pipelines.ic_lora','--distilled-checkpoint-path',CK,'--spatial-upsampler-path',UP,
+         '--gemma-root',GEMMA,'--lora',LORA,'0.85','--video-conditioning',w['gray'],'1.0',
+         '--width','1920','--height','1088','--num-frames','81','--frame-rate','24','--seed','42',
+         '--skip-stage-2','--output-path',w['out'],'--prompt',w['prompt']]
+    if a.offload_mode: cmd+=['--offload-mode',a.offload_mode]
+    for (p,pos,wt) in imgs: cmd+=['--image',p,str(pos),str(wt)]
+    print(f"[{i+1}/{len(manifest)}] {os.path.basename(w['out'])} carry={len(imgs)-1} ...",flush=True)
+    r=subprocess.run(cmd,capture_output=True,text=True)
+    if not os.path.exists(w['out']):
+        print(f"FOUT venster {i}: {r.stderr[-400:]}",flush=True); sys.exit(1)
+    prev_out=w['out']; rendered.append(w['out'])
+    print(f"[{i+1}] klaar ({round(time.time()-tw)}s)",flush=True)
+# stitch (concat; crossfade optioneel later)
+lst='/workspace/stitch.txt'; open(lst,'w').write('\n'.join(f"file '{p}'" for p in rendered))
+subprocess.run(['ffmpeg','-y','-f','concat','-safe','0','-i',lst,'-c:v','libx264','-crf','18','-pix_fmt','yuv420p','-r','30',a.stitch_out],capture_output=True)
+print(f"STITCH_DONE -> {a.stitch_out}",flush=True); print("ALL_DONE",flush=True)

ltx_seamless_v2.py

@@ -0,0 +1,212 @@
+#!/usr/bin/env python3
+"""ltx_seamless_v2.py -- Geintegreerde re-render met alle fixes (29 jun 2026).
+
+FIXES vs v1:
+  P2 (kleur-lag): scene-cut-aware manifest (extra_anchors voor mid-cut vensters,
+     cut_at_start=True voor vroege cuts). Lag 52f -> <=5f per scene-grens.
+  P3 (RGB-speckle): dark-flat neutralize op keyframes voor conditioning:
+     pixels met Y<80 & lokale_std<12 -> R=G=B=Y. Doodt chroma-seed in donkere vlakken.
+  P4 (wagon-flikker): ref_003541.png als extra_anchor op pos 60 voor w43 (via manifest).
+
+  P1 (resolutie): --skip-stage-2 BEHOUDEN. Post-hoc SeedVR2 op RTX 5080
+     met --color_correction lab (bewaart palet 1:1, gratis lokale GPU).
+
+PARALLEL-KLAAR:
+  5 scenes (w0-w8, w9-w22, w23-w36, w37-w50, w51-w66).
+  Render subset: --scene N  (render alle vensters van scene N).
+  Langste scene: 16 vensters (~17 min). N kaarten -> Nx sneller.
+
+Gebruik:
+  python3 ltx_seamless_v2.py manifest.json
+  python3 ltx_seamless_v2.py manifest.json --scene 3          # alleen scene 3
+  python3 ltx_seamless_v2.py manifest.json --first-window 20  # resume vanaf w20
+"""
+import json, subprocess, os, sys, time, argparse, tempfile
+import numpy as np
+
+ap = argparse.ArgumentParser()
+ap.add_argument('manifest')
+ap.add_argument('--offload-mode', default=None)
+ap.add_argument('--carry', type=int, default=2, help='Aantal carry-over frames')
+ap.add_argument('--stitch-out', default='/workspace/ltx_full_v3.mp4')
+ap.add_argument('--scene', type=int, default=-1, help='Render alleen scene N (-1 = alle)')
+ap.add_argument('--first-window', type=int, default=0, help='Start bij venster N (resume)')
+a = ap.parse_args()
+
+PY   = '/workspace/LTX-2/.venv/bin/python'
+CK   = '/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors'
+UP   = '/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors'
+LORA = '/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors'
+GEMMA = '/workspace/models/LTX-2'
+
+manifest_all = json.load(open(a.manifest))
+
+# ── Filter op scene / first-window ───────────────────────────────────────────
+if a.scene >= 0:
+    manifest_all = [w for w in manifest_all if w.get('scene_id', 0) == a.scene]
+    if not manifest_all:
+        print(f'FOUT: scene {a.scene} niet gevonden in manifest', flush=True)
+        sys.exit(1)
+    print(f'[DRIVER] Scene {a.scene}: {len(manifest_all)} vensters', flush=True)
+
+if a.first_window > 0:
+    # find index within filtered manifest
+    skip = sum(1 for w in manifest_all if int(w['out'].split('/w')[-1].split('.mp4')[0]) < a.first_window)
+    manifest_all = manifest_all[skip:]
+    print(f'[DRIVER] Resume vanaf w{a.first_window} ({len(manifest_all)} vensters resterend)', flush=True)
+
+os.makedirs('/workspace/ltx_co_out', exist_ok=True)
+os.makedirs('/tmp/carry', exist_ok=True)
+os.makedirs('/tmp/kf_proc', exist_ok=True)
+
+# ── Helpers ───────────────────────────────────────────────────────────────────
+def total_frames(v):
+    r = subprocess.run(
+        ['ffprobe', '-v', 'quiet', '-select_streams', 'v:0', '-count_packets',
+         '-show_entries', 'stream=nb_read_packets', '-of', 'csv=p=0', v],
+        capture_output=True, text=True)
+    try:
+        return int(r.stdout.strip())
+    except Exception:
+        return 81
+
+def extract_frame(v, idx, out):
+    subprocess.run(
+        ['ffmpeg', '-y', '-i', v, '-vf', f'select=eq(n\\,{idx})',
+         '-vsync', '0', '-frames:v', '1', out],
+        capture_output=True)
+    return os.path.exists(out)
+
+def dark_flat_neutralize(img_path, out_path, y_thresh=80, std_thresh=12, patch=8):
+    """P3: pixels met Y<y_thresh en lokale_std<std_thresh -> R=G=B=Y (gray).
+    Pure numpy via sliding_window_view (numpy>=1.20). Lokale range als std-proxy.
+    """
+    try:
+        from PIL import Image
+    except ImportError:
+        import shutil
+        shutil.copy(img_path, out_path)
+        return
+    from numpy.lib.stride_tricks import sliding_window_view
+    img = np.array(Image.open(img_path).convert('RGB'), dtype=np.float32)
+    Y = 0.299 * img[:, :, 0] + 0.587 * img[:, :, 1] + 0.114 * img[:, :, 2]
+    # Lokale range (max-min over patch) als proxy voor std
+    # Asymmetrische padding voor even patch-grootte: (k-1)/2 links, k/2 rechts
+    p0, p1 = patch // 2 - 1, patch // 2  # bijv. patch=8 -> (3,4)
+    Y_pad = np.pad(Y, ((p0, p1), (p0, p1)), mode='reflect')
+    # sliding_window_view(H+k-1, k) -> (H, k) per dimensie -> shape (H, W, patch, patch)
+    wins = sliding_window_view(Y_pad, (patch, patch))
+    local_range = wins.max(axis=(-1, -2)) - wins.min(axis=(-1, -2))
+    # Masker: donker EN vlak (range < 2*std_thresh ≈ 95e percentiel flat check)
+    mask = (Y < y_thresh) & (local_range < std_thresh * 2)
+    for c in range(3):
+        img[:, :, c] = np.where(mask, Y, img[:, :, c])
+    Image.fromarray(img.astype(np.uint8)).save(out_path)
+
+def process_keyframe(kf_path):
+    """Verwerk keyframe met P3 dark-flat neutralize. Returneer pad naar processed versie."""
+    fname = os.path.basename(kf_path)
+    out_path = f'/tmp/kf_proc/{fname}'
+    if not os.path.exists(out_path):
+        dark_flat_neutralize(kf_path, out_path)
+    return out_path
+
+# ── Render loop ───────────────────────────────────────────────────────────────
+prev_out = None
+rendered = []
+t_start = time.time()
+
+for i, w in enumerate(manifest_all):
+    tw = time.time()
+    wi_num = int(w['out'].split('/w')[-1].split('.mp4')[0])
+
+    # Als dit venster al bestaat, skip (resume support)
+    if os.path.exists(w['out']) and os.path.getsize(w['out']) > 10000:
+        print(f'[{i+1}/{len(manifest_all)}] w{wi_num} al klaar, skip', flush=True)
+        prev_out = w['out']
+        rendered.append(w['out'])
+        continue
+
+    imgs = []  # (path, pos, weight)
+
+    # Carry-over: laatste frames van vorig venster
+    if prev_out and not w.get('cut_at_start'):
+        tf = total_frames(prev_out)
+        for ci in range(a.carry):
+            idx = tf - 1 - ci
+            cf = f'/tmp/carry/c{ci}.png'
+            if extract_frame(prev_out, idx, cf):
+                # pos 0 = laatste frame (weight 0.85), pos 1 = voorlaatste (0.65)
+                imgs.append((cf, ci, round(0.85 - ci * 0.20, 2)))
+
+    # Primaire keyframe (P3: dark-flat verwerkt)
+    kf_proc = process_keyframe(w['keyframe'])
+    imgs.append((kf_proc, w.get('kf_pos', 40), 1.0))
+
+    # Extra anchors voor mid-window scene cuts (P2 / P4)
+    for anchor in w.get('extra_anchors', []):
+        anc_proc = process_keyframe(anchor['path'])
+        imgs.append((anc_proc, anchor['pos'], anchor['weight']))
+
+    # Bouw CLI-commando
+    cmd = [
+        PY, '-m', 'ltx_pipelines.ic_lora',
+        '--distilled-checkpoint-path', CK,
+        '--spatial-upsampler-path', UP,
+        '--gemma-root', GEMMA,
+        '--lora', LORA, '0.85',
+        '--video-conditioning', w['gray'], '1.0',
+        '--width', '1920', '--height', '1088',
+        '--num-frames', '81',
+        '--frame-rate', '24',
+        '--seed', '42',
+        '--skip-stage-2',  # P1: SeedVR2 post-hoc op RTX 5080
+        '--output-path', w['out'],
+        '--prompt', w['prompt'],
+    ]
+    if a.offload_mode:
+        cmd += ['--offload-mode', a.offload_mode]
+
+    # Alle conditioning images (carry-over + keyframe + anchors)
+    for (p, pos, wt) in imgs:
+        cmd += ['--image', p, str(pos), str(wt)]
+
+    n_carry = len([x for x in imgs if x[1] < 2 and x[2] < 1.0])
+    n_anchors = len(w.get('extra_anchors', []))
+    scene_id = w.get('scene_id', '?')
+    print(f'[{i+1}/{len(manifest_all)}] w{wi_num} scene={scene_id} '
+          f'carry={n_carry} anchors={n_anchors} ...', flush=True)
+
+    r = subprocess.run(cmd, capture_output=True, text=True)
+
+    if not os.path.exists(w['out']):
+        print(f'FOUT venster w{wi_num}:\n{r.stderr[-600:]}', flush=True)
+        sys.exit(1)
+
+    elapsed = round(time.time() - tw)
+    total_elapsed = round(time.time() - t_start)
+    remaining = len(manifest_all) - i - 1
+    eta_s = remaining * elapsed
+    print(f'[{i+1}/{len(manifest_all)}] w{wi_num} klaar ({elapsed}s | '
+          f'ETA {eta_s//60}min {eta_s%60}s)', flush=True)
+
+    prev_out = w['out']
+    rendered.append(w['out'])
+
+# ── Stitch ────────────────────────────────────────────────────────────────────
+if len(rendered) > 1:
+    lst = '/workspace/stitch_v3.txt'
+    with open(lst, 'w') as f:
+        f.write('\n'.join("file '%s'" % p for p in rendered))
+    subprocess.run(
+        ['ffmpeg', '-y', '-f', 'concat', '-safe', '0', '-i', lst,
+         '-c:v', 'libx264', '-crf', '18', '-pix_fmt', 'yuv420p', '-r', '30',
+         a.stitch_out],
+        capture_output=True)
+    total_time = round(time.time() - t_start)
+    print(f'STITCH_DONE -> {a.stitch_out} ({total_time//60}min {total_time%60}s totaal)',
+          flush=True)
+elif len(rendered) == 1:
+    print(f'Enkel venster klaar: {rendered[0]}', flush=True)
+
+print('ALL_DONE', flush=True)

mem_snap.py

@@ -0,0 +1,46 @@
+"""Quick CUDA memory snapshot after window 1 encode_video to find the 44GB holder."""
+import sys, os, gc, json, pickle, gzip
+sys.path.insert(0, '/workspace/LTX-2/packages/ltx-pipelines/src')
+sys.path.insert(0, '/workspace/LTX-2/packages/ltx-core/src')
+
+import torch
+
+# Find all GPU tensors >= 1GB, print shape + data_ptr + storage_size
+def dump_big_gpu_tensors(label):
+    print(f"\n=== {label} === VRAM={torch.cuda.memory_allocated()//1024**3}GB ===", flush=True)
+    big = []
+    for obj in gc.get_objects():
+        try:
+            if isinstance(obj, torch.Tensor) and obj.device.type == 'cuda':
+                gb = obj.untyped_storage().nbytes() / 1024**3
+                if gb > 1.0:
+                    big.append((gb, obj.shape, hex(obj.data_ptr()), obj.dtype))
+        except Exception:
+            pass
+    big.sort(reverse=True)
+    total = sum(g for g, *_ in big)
+    print(f"  {len(big)} tensors >= 1GB, total={total:.1f}GB", flush=True)
+    for gb, shape, ptr, dt in big[:10]:
+        print(f"  {gb:.2f}GB {list(shape)} {dt} ptr={ptr}", flush=True)
+    return total
+
+# Use torch's memory snapshot
+def take_snapshot(path):
+    torch.cuda.synchronize()
+    snap = torch.cuda.memory._snapshot()
+    # find largest active segments
+    segments = snap.get('segments', [])
+    active = []
+    for seg in segments:
+        for blk in seg.get('blocks', []):
+            if blk.get('state') == 'active_allocated':
+                sz = blk.get('size', 0)
+                if sz > 500 * 1024**2:  # > 500MB
+                    trace = blk.get('frames', [])
+                    trace_str = ' -> '.join(f"{f.get('name','?')}({f.get('filename','?')}:{f.get('line','?')})" for f in trace[-5:])
+                    active.append((sz / 1024**3, trace_str))
+    active.sort(reverse=True)
+    print(f"\n=== SNAPSHOT {path}: {len(active)} blocks >= 500MB ===", flush=True)
+    for gb, trace in active[:20]:
+        print(f"  {gb:.2f}GB | {trace}", flush=True)
+

vae_diag.py

@@ -0,0 +1,166 @@
+"""Diagnostic: what holds 45GB after window 1 encode_video?"""
+import os, gc, sys, time
+os.environ.setdefault('PYTORCH_ALLOC_CONF', 'expandable_segments:True')
+os.environ.setdefault('PYTORCH_CUDA_ALLOC_CONF', 'expandable_segments:True')
+import torch
+
+sys.path.insert(0, '/workspace/LTX-2/packages/ltx-pipelines/src')
+sys.path.insert(0, '/workspace/LTX-2/packages/ltx-core/src')
+
+from ltx_pipelines.ic_lora import ICLoraPipeline
+from ltx_pipelines.utils.args import ImageConditioningInput
+from ltx_core.loader import LoraPathStrengthAndSDOps, LTXV_LORA_COMFY_RENAMING_MAP
+from ltx_core.model.video_vae import TilingConfig, get_video_chunks_number
+from ltx_pipelines.utils.media_io import encode_video
+from ltx_pipelines.utils.types import OffloadMode
+import optimum.quanto as oq
+
+CK    = '/workspace/models/LTX-2.3/ltx-2.3-22b-distilled.safetensors'
+UP    = '/workspace/models/LTX-2.3/ltx-2.3-spatial-upscaler-x2-1.1.safetensors'
+LORA  = '/workspace/models/loras/ltx-2.3-22b-ic-lora-colorization-0.9.safetensors'
+GEMMA = '/workspace/models/LTX-2'
+
+print("[DIAG] Pipeline laden...", flush=True)
+pipe = ICLoraPipeline(
+    distilled_checkpoint_path=CK,
+    spatial_upsampler_path=UP,
+    gemma_root=GEMMA,
+    loras=(LoraPathStrengthAndSDOps(LORA, 1.0, LTXV_LORA_COMFY_RENAMING_MAP),),
+    quantization=None,
+    compilation_config=None,
+    offload_mode=OffloadMode('none'),
+)
+print(f"[DIAG] Pipeline geladen, VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+# Prompt cache
+with torch.no_grad():
+    _ctx = pipe.prompt_encoder(["Cinematic black and white silent film, high contrast"], enhance_first_prompt=False, enhance_prompt_seed=42)[0]
+pipe.prompt_encoder = lambda prompts, **kw: [_ctx]
+gc.collect(); torch.cuda.empty_cache()
+print(f"[DIAG] Gemma freed, VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+# fp8 DiT
+from contextlib import contextmanager
+stage = pipe.stage_1
+_pre_built_dit = stage._build_transformer()
+vram_bf16 = torch.cuda.memory_allocated() // 1024**3
+oq.quantize(_pre_built_dit, weights=oq.qfloat8)
+# Fix stale refs (TransformerArgsPreprocessor)
+_vm = _pre_built_dit.velocity_model
+_id_map = {}
+for _a in dir(_vm):
+    if not _a.startswith('_'):
+        _o = getattr(_vm, _a, None)
+        if isinstance(_o, torch.nn.Linear):
+            _id_map[id(_o)] = _a
+
+def _fix(obj, vm, id_map, depth=0):
+    if depth > 6: return
+    for k, v in list(getattr(obj, '__dict__', {}).items()):
+        if isinstance(v, torch.nn.Linear) and getattr(v, 'weight', True) is None:
+            a = id_map.get(id(v))
+            if a:
+                setattr(obj, k, getattr(vm, a, None))
+        elif not isinstance(v, (torch.nn.Module, torch.Tensor)) and hasattr(v, '__dict__'):
+            _fix(v, vm, id_map, depth+1)
+
+for _p in [_vm.video_args_preprocessor, getattr(_vm, 'audio_args_preprocessor', None)]:
+    if _p: _fix(_p, _vm, _id_map)
+oq.freeze(_pre_built_dit)
+gc.collect(); torch.cuda.empty_cache()
+vram_fp8 = torch.cuda.memory_allocated() // 1024**3
+print(f"[DIAG] DiT fp8: {vram_fp8}GB (was bf16 {vram_bf16}GB)", flush=True)
+
+@contextmanager
+def _ctx_mgr(**kw):
+    yield _pre_built_dit
+    gc.collect(); torch.cuda.empty_cache()
+
+stage._transformer_ctx = _ctx_mgr
+pipe.stage_2._transformer_ctx = _ctx_mgr
+
+# Tiled encode patch
+import ltx_pipelines.iclora_utils as _icu
+import ltx_pipelines.ic_lora as _icl
+from ltx_core.model.video_vae.tiling import SpatialTilingConfig as _STC, TemporalTilingConfig as _TTC
+_TILE = TilingConfig(spatial_config=_STC(512, 64), temporal_config=_TTC(80, 24))
+_orig = _icu.append_ic_lora_reference_video_conditionings
+_icu.append_ic_lora_reference_video_conditionings = lambda *a, tiling_config=None, **kw: _orig(*a, tiling_config=_TILE, **kw)
+_icl.append_ic_lora_reference_video_conditionings = _icu.append_ic_lora_reference_video_conditionings
+
+# Run window 0
+import json
+with open('/workspace/ltx_co_manifest.json') as f:
+    w = json.load(f)[0]
+
+tiling = TilingConfig.default()
+imgs = [ImageConditioningInput(path=w['keyframe'], frame_idx=w.get('kf_pos', 40), strength=1.0)]
+print(f"[DIAG] Render venster 0...", flush=True)
+with torch.no_grad():
+    video, audio = pipe(
+        prompt=w['prompt'], seed=42, height=1088, width=1920, num_frames=81, frame_rate=24,
+        images=imgs, video_conditioning=[(w['gray'], 1.0)], tiling_config=tiling,
+        conditioning_attention_strength=1.0, skip_stage_2=True, conditioning_attention_mask=None,
+    )
+print(f"[DIAG] Pipe klaar, VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+import os
+os.makedirs(os.path.dirname(w['out']), exist_ok=True)
+encode_video(video=video, fps=24, audio=audio, output_path=w['out'],
+             video_chunks_number=get_video_chunks_number(81, tiling))
+print(f"[DIAG] encode_video klaar, VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+del video, audio
+gc.collect(); torch.cuda.empty_cache()
+print(f"[DIAG] Na del+gc, VRAM={torch.cuda.memory_allocated()//1024**3}GB", flush=True)
+
+# DIAGNOSTIEK: wat houdt CUDA memory?
+print(f"\n[DIAG] === CUDA GEHEUGEN ANALYSE ===", flush=True)
+print(f"allocated={torch.cuda.memory_allocated()//1024**3}GB reserved={torch.cuda.memory_reserved()//1024**3}GB", flush=True)
+
+# Scan pipe.video_decoder
+print("\n[DIAG] pipe.video_decoder module scan:", flush=True)
+vd = pipe.video_decoder
+total_vd = 0
+for name, m in vd.named_modules():
+    # Parameters
+    p_sizes = [(n, p.numel()*p.element_size()//1024**2) for n,p in m.named_parameters(recurse=False) if p is not None and p.is_cuda]
+    b_sizes = [(n, b.numel()*b.element_size()//1024**2) for n,b in m.named_buffers(recurse=False) if b is not None and b.is_cuda]
+    # Also scan __dict__ for cached tensors
+    dict_sizes = []
+    for k, v in m.__dict__.items():
+        if isinstance(v, torch.Tensor) and v.is_cuda:
+            sz = v.numel() * v.element_size() // 1024**2
+            dict_sizes.append((k, sz))
+        elif isinstance(v, list):
+            for item in v:
+                if isinstance(item, torch.Tensor) and item.is_cuda:
+                    sz = item.numel() * item.element_size() // 1024**2
+                    dict_sizes.append((f'{k}[]', sz))
+    total_m = sum(s for _,s in p_sizes+b_sizes+dict_sizes)
+    if total_m > 100:  # > 100MB
+        total_vd += total_m
+        print(f"  {name or 'root'}: {total_m}MB", flush=True)
+        for n, s in p_sizes+b_sizes+dict_sizes:
+            if s > 10:
+                print(f"    .{n}: {s}MB", flush=True)
+
+print(f"\n[DIAG] Total in video_decoder: ~{total_vd}MB", flush=True)
+
+# Scan pipe.stage_1 (NOT the DiT)
+print("\n[DIAG] pipe.stage_1 non-DiT scan:", flush=True)
+stage1 = pipe.stage_1
+for attr in dir(stage1):
+    if attr.startswith('_'): continue
+    try:
+        v = getattr(stage1, attr)
+        if isinstance(v, torch.Tensor) and v.is_cuda:
+            print(f"  stage_1.{attr}: {v.numel()*v.element_size()//1024**2}MB shape={list(v.shape)}", flush=True)
+        elif isinstance(v, torch.nn.Module):
+            sz = sum(p.numel()*p.element_size() for p in v.parameters() if p.is_cuda) // 1024**2
+            if sz > 100:
+                print(f"  stage_1.{attr}: ~{sz}MB (nn.Module)", flush=True)
+    except Exception:
+        pass
+
+print("\n[DIAG] KLAAR", flush=True)