Fix spelling mistake: orignal -> original (#3062)

* Fix spelling mistake: orignal -> original

* Spelling fix: orignal -> original
Co-authored-by: Vasilis Vryniotis <datumbox@users.noreply.github.com>

torchvision/csrc/cpu/decoder/defs.h

@@ -52,7 +52,7 @@ struct VideoFormat {
   }
   /*
   When width = 0, height = 0, minDimension = 0, and maxDimension = 0,
-    keep the orignal frame resolution
+    keep the original frame resolution
   When width = 0, height = 0, minDimension != 0, and maxDimension = 0,
     keep the aspect ratio and resize the frame so that shorter edge size is
   minDimension

torchvision/io/_video_opt.py

@@ -193,7 +193,7 @@ def _read_video_from_file(
     video_width/video_height/video_min_dimension/video_max_dimension: int
         together decide the size of decoded frames
         - When video_width = 0, video_height = 0, video_min_dimension = 0,
-            and video_max_dimension = 0, keep the orignal frame resolution
+            and video_max_dimension = 0, keep the original frame resolution
         - When video_width = 0, video_height = 0, video_min_dimension != 0,
             and video_max_dimension = 0, keep the aspect ratio and resize the
             frame so that shorter edge size is video_min_dimension
@@ -357,7 +357,7 @@ def _read_video_from_memory(
     video_width/video_height/video_min_dimension/video_max_dimension: int
         together decide the size of decoded frames
         - When video_width = 0, video_height = 0, video_min_dimension = 0,
-            and video_max_dimension = 0, keep the orignal frame resolution
+            and video_max_dimension = 0, keep the original frame resolution
         - When video_width = 0, video_height = 0, video_min_dimension != 0,
             and video_max_dimension = 0, keep the aspect ratio and resize the
             frame so that shorter edge size is video_min_dimension