Add HEIC/HEIF image support

- Add support for HEIC/HEIF image thumbnails and previews
- Replace dependency "pillow_avif_plugin" with "pi-heif"
- Remove unused dependencies in ts_cli.py

tagstudio/src/cli/ts_cli.py

@@ -7,14 +7,17 @@
 
 import datetime
 import math
-from multiprocessing import Value
+
+# from multiprocessing import Value
 import os
-import subprocess
+
+# import subprocess
 import sys
 import time
-from PIL import Image, ImageOps, ImageChops, UnidentifiedImageError
+from PIL import Image, ImageChops, UnidentifiedImageError
 from PIL.Image import DecompressionBombError
-import pillow_avif
+
+# import pillow_avif
 from pathlib import Path
 import traceback
 import cv2

tagstudio/src/qt/widgets/thumb_renderer.py

@@ -10,6 +10,7 @@ from pathlib import Path
 
 import cv2
 import rawpy
+from pillow_heif import register_heif_opener, register_avif_opener
 from PIL import (
     Image,
     UnidentifiedImageError,
@@ -36,8 +37,9 @@ ERROR = "[ERROR]"
 WARNING = "[WARNING]"
 INFO = "[INFO]"
 
-
 logging.basicConfig(format="%(message)s", level=logging.INFO)
+register_heif_opener()
+register_avif_opener()
 
 
 class ThumbRenderer(QObject):