Merge pull request #319 from robspychala/hvc1-tag

add hvc1 video sample BOX support

Author: jamiesonpepper

spatialmedia/mpeg/constants.py

@@ -72,7 +72,8 @@
 TAG_AVC1 = b"avc1"
 TAG_VP09 = b"vp09"
 TAG_AV01 = b"av01"
-TAV_HEV1 = b"hev1"
+TAG_HEV1 = b"hev1"
+TAG_HVC1 = b"hvc1"
 TAG_DVH1 = b"dvh1"
 TAG_APCN = b"apcn"
 TAG_APCH = b"apch"
@@ -102,7 +103,8 @@
  TAG_AVC1,
  TAG_VP09,
  TAG_AV01,
- TAV_HEV1,
+ TAG_HEV1,
+ TAG_HVC1,
  TAG_DVH1,
  TAG_APCN,
  TAG_APCH,