Lower threshold to skip YUV-RGB converison tests
Lower the threshold for skipping the YUV<->RGB conversion tests from
47 * 1024 * 1024 to 39 * 1024 * 1024.
A test image of size 12291 x 3328 causes a sanitizer build to spend 5 to
6 seconds in avifImageYUVToRGB() and avifImageRGBToYUV().
Bug: b/243591988
diff --git a/tests/oss-fuzz/avif_decode_fuzzer.cc b/tests/oss-fuzz/avif_decode_fuzzer.cc
index 80e5d97..702185c 100644
--- a/tests/oss-fuzz/avif_decode_fuzzer.cc
+++ b/tests/oss-fuzz/avif_decode_fuzzer.cc
@@ -32,7 +32,7 @@
if (result == AVIF_RESULT_OK) {
for (int loop = 0; loop < 2; ++loop) {
while (avifDecoderNextImage(decoder) == AVIF_RESULT_OK) {
- if (((decoder->image->width * decoder->image->height) > (47 * 1024 * 1024)) || (loop != 0) ||
+ if (((decoder->image->width * decoder->image->height) > (39 * 1024 * 1024)) || (loop != 0) ||
(decoder->imageIndex != 0)) {
// Skip the YUV<->RGB conversion tests, which are time-consuming for large
// images. It suffices to run these tests only for loop == 0 and only for the
