{
  "context": "This criteria evaluates how well the engineer uses the pillow-heif package to convert Pillow images to HEIF format. The focus is on proper usage of from_pillow() for creating HeifFile objects and save() for encoding with appropriate parameters.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Use from_pillow()",
      "description": "Uses pillow_heif.from_pillow() or HeifFile.from_pillow() to create a HeifFile object from a PIL.Image.Image object loaded via PIL.Image.open()",
      "max_score": 30
    },
    {
      "name": "Save HeifFile",
      "description": "Uses the HeifFile.save() method to write the HEIF file to disk, passing the output file path as the first argument",
      "max_score": 20
    },
    {
      "name": "Quality parameter",
      "description": "Passes the quality parameter to the save() method to control encoding quality (0-100 for lossy, -1 for lossless)",
      "max_score": 20
    },
    {
      "name": "EXIF preservation",
      "description": "Preserves EXIF metadata by accessing it from the PIL.Image.info dictionary and passing it to save() via the exif parameter",
      "max_score": 20
    },
    {
      "name": "Output path handling",
      "description": "Correctly determines the output path by either using the provided output_path parameter or deriving it from input_path by replacing the extension with .heif",
      "max_score": 10
    }
  ]
}