Fix issue in ReadSequenceHeader() not reading OrderHintBits

2 years ago · c4d34c5ea5
1 changed files with 10 additions and 8 deletions
--- a/src/ImageSharp/Formats/Heif/Av1/OpenBitstreamUnit/ObuReader.cs
+++ b/src/ImageSharp/Formats/Heif/Av1/OpenBitstreamUnit/ObuReader.cs
@ -422,14 +422,16 @@ internal class ObuReader
            }
            else
            {
-                if (sequenceHeader.EnableOrderHint)
-                {
-                    sequenceHeader.OrderHintInfo.OrderHintBits = (int)reader.ReadLiteral(3) + 1;
-                }
-                else
-                {
-                    sequenceHeader.OrderHintInfo.OrderHintBits = 0;
-                }
+                sequenceHeader.ForceIntegerMotionVector = 2; // SELECT_INTEGER_MV
+            }
+
+            if (sequenceHeader.EnableOrderHint)
+            {
+                sequenceHeader.OrderHintInfo.OrderHintBits = (int)reader.ReadLiteral(3) + 1;
+            }
+            else
+            {
+                sequenceHeader.OrderHintInfo.OrderHintBits = 0;
            }
        }