libaom:av1_enc_fuzzer: Bad-cast to PixelLevelGradientInfocompute_gradient_info_sb in av1_encode_sb_row

Detailed Report: https://oss-fuzz.com/testcase?key=4504396785057792 Project: libaom Fuzzing Engine: libFuzzer Fuzz Target: av1encfuzzer Job Type: libfuzzerubsanlibaom Platform Id: linux Crash Type: Bad-cast Crash Address: 0x000000000104 Crash State: Bad-cast to...