Update ucf_crime.py

ucf_crime.py

@@ -82,7 +82,7 @@ _SPLIT_FILES = {
 _NAMES = [
     "Abuse", "Arrest", "Arson", "Assault",
     "Burglary", "Explosion", "Fighting",
-    "RoadAccidents", "Robbery", "Shooting",
+    "RoadAccidents", "Robbery", "Shooting"
     "Shoplifting", "Stealing", "Vandalism",
     "Normal",
 ]
@@ -189,7 +189,7 @@ class UCFCrime(datasets.GeneratorBasedBuilder):
         split_files = []
         if split_path is not None:
             with open(split_path, "r") as f:
-                split_files = [line.strip().split("/")[-1] for line in f.readlines()]
+                split_files = [line.strip().split(os.sep)[-1] for line in f.readlines()]
         for extracted_path in extracted.values():
             for root, _, files in os.walk(extracted_path, topdown=False):
                 for name in files:
@@ -203,7 +203,15 @@ class UCFCrime(datasets.GeneratorBasedBuilder):
 
                         images = [None]
                         if self.config.to_images == True:
-                            pass
+                            outpath = os.path.join(root, "frames")
+                            ffmpeg_cmd = ["ffmpeg", "-i", absolute_file_path]
+                            ffmpeg_cmd += [os.path.join(outpath, "image_%05d.jpg")]
+                            subprocess.run(ffmpeg_cmd)
+
+                            images = [
+                                os.path.join(outpath, img_file)
+                                for img_file in sorted(os.listdir(outpath))
+                            ]
 
                         yield idx, {
                             "video_path": absolute_file_path,