10 fps clips with the first 8 frames trimmed

README.md

@@ -13,6 +13,6 @@ short_description: FLUX.1-schnell stills animated with LTX-Video
 # Graphics Studio
 
 1. **FLUX.1-schnell** (black-forest-labs) turns a prompt into a 1152×768 still in 4 steps.
-2. **LTX-Video** (Lightricks) animates that still, or any uploaded image, into a 2 to 8 second clip at 768×512, 24 fps.
+2. **LTX-Video** (Lightricks) animates that still, or any uploaded image, into a 2 to 8 second clip at 768×512, 10 fps.
 
 Runs on ZeroGPU: set the Space hardware to **ZeroGPU** in Settings.

app.py

@@ -17,7 +17,8 @@ VIDEO_MODEL = "Lightricks/LTX-Video-0.9.5"
 
 IMAGE_WIDTH, IMAGE_HEIGHT = 1152, 768      # 3:2, multiples of 16 for FLUX
 VIDEO_WIDTH, VIDEO_HEIGHT = 768, 512       # 3:2, multiples of 32 for LTX-Video
-FPS = 24
+FPS = 10
+TRIM_FRAMES = 8        # Frames cut from the start of every clip, where the noise is
 MAX_SEED = 2**31 - 1
 
 NEGATIVE_PROMPT = ("worst quality, inconsistent motion, blurry, jittery, distorted, "
@@ -63,7 +64,8 @@ def make_video(image, scene_prompt, motion_prompt, seconds, steps, seed, randomi
     if image is None:
         raise gr.Error("Make or upload an image first.")
     seed = pick_seed(seed, randomize_seed)
-    num_frames = int(seconds * FPS) // 8 * 8 + 1   # LTX-Video wants 8n+1 frames
+    # Generate the clip plus the frames that get cut off. LTX-Video wants 8n+1 frames.
+    num_frames = -(-(int(seconds * FPS) + TRIM_FRAMES - 1) // 8) * 8 + 1
     # LTX-Video needs the scene AND the motion described, or it tends to hold the picture still
     motion = motion_prompt.strip() or "gentle cinematic camera motion, natural movement"
     prompt = f"{scene_prompt.strip()}. {motion}" if scene_prompt.strip() else motion
@@ -82,7 +84,7 @@ def make_video(image, scene_prompt, motion_prompt, seconds, steps, seed, randomi
         generator=torch.Generator("cpu").manual_seed(seed),
     ).frames[0]
     path = f"/tmp/video_{seed}.mp4"
-    export_to_video(frames, path, fps=FPS)
+    export_to_video(frames[TRIM_FRAMES:], path, fps=FPS)
     return path, seed