bugfix: Aligned faces. Fix padding calculation

Author: torzdf

lib/align/aligned_face.py

@@ -335,7 +335,8 @@ def _padding_from_coverage(cls, size: int, coverage_ratio: float) -> dict[Center
         -------
         The padding required, in pixels for 'head', 'face' and 'legacy' face types
         """
-        retval = {_type: round((size * (1 - EXTRACT_RATIOS[_type] / coverage_ratio)) / 2)
+        retval = {_type: round(size * (EXTRACT_RATIOS[_type] + coverage_ratio - 1) /
+                               (2 * coverage_ratio))
                   for _type in T.get_args(T.Literal["legacy", "face", "head"])}
         logger.trace(retval)  # type:ignore[attr-defined]
         return retval

tools/alignments/media.py

@@ -481,7 +481,6 @@ def __init__(self, frames: Frames, alignments: AlignmentData, size: int = 512) -
         logger.trace("Initializing %s: size: %s",  # type:ignore[attr-defined]
                      self.__class__.__name__, size)
         self.size = size
-        self.padding = int(size * 0.1875)
         self.alignments = alignments
         self.frames = frames
         self.current_frame: str | None = None