input:
  video_path: "/workspace/data/input_video.mp4"
  
processing:
  scale_factor: 0.5  # A40 can handle 0.5 well
  chunk_size: 0     # Auto-calculate based on A40's 48GB VRAM
  overlap_frames: 60
  
detection:
  confidence_threshold: 0.7
  model: "yolov8m"   # Use medium model on A40
  
matting:
  use_disparity_mapping: true
  memory_offload: false  # A40 has enough VRAM
  fp16: true
  sam2_model_cfg: "configs/sam2.1/sam2.1_hiera_l.yaml"
  sam2_checkpoint: "segment-anything-2/checkpoints/sam2.1_hiera_large.pt"
  
output:
  path: "/workspace/output/matted_video.mp4"
  format: "alpha"
  background_color: [0, 255, 0]
  maintain_sbs: true
  
hardware:
  device: "cuda"
  max_vram_gb: 45     # A40 has 48GB, leave headroom