better check

2022-05-25 18:57:33 -05:00 · 2022-05-25 18:57:33 -05:00 · 5c04aacbe2
parent 49acd68ce9
commit 5c04aacbe2
1 changed files with 1 additions and 1 deletions
--- a/src/pixie/fileformats/jpeg.nim
+++ b/src/pixie/fileformats/jpeg.nim
@ -276,7 +276,7 @@ proc decodeSOF0(state: var DecoderState) =
    if quantizationTableId > 3:
      failInvalid("invalid quantization table id")

-    if vertical == 0 or vertical > 4 or horizontal == 0 or horizontal > 4:
+    if vertical notin {0, 1, 2, 4} or horizontal notin {0, 1, 2, 4}:
      failInvalid("invalid component scaling factor")

    component.xScale = vertical.int