Fixes: passing zero to clz(), which is not a valid argument
Fixes: 23337/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PIXLET_fuzzer-5179131989065728
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
length = 25 - nbits;
while (i < size) {
length = 25 - nbits;
while (i < size) {
+ if (((state >> 8) + 3) & 0xFFFFFFF)
value = ff_clz((state >> 8) + 3) ^ 0x1F;
else
value = -1;
value = ff_clz((state >> 8) + 3) ^ 0x1F;
else
value = -1;