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ffmpeg.wasm-core
Commit a6eb006a authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/svq3: Fix runtime error: left shift of negative value -6 

Fixes: 1604/clusterfuzz-testcase-minimized-5312060206350336

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpegSigned-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent f08122fb
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libavcodec/svq3.c
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...@@ -524,8 +524,8 @@ static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode, ...@@ -524,8 +524,8 @@ static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode,
if (mode != PREDICT_MODE) { if (mode != PREDICT_MODE) {
svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my); svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my);
} else { } else {
mx = s->next_pic->motion_val[0][b_xy][0] << 1; mx = s->next_pic->motion_val[0][b_xy][0] * 2;
my = s->next_pic->motion_val[0][b_xy][1] << 1; my = s->next_pic->motion_val[0][b_xy][1] * 2;
if (dir == 0) { if (dir == 0) {
mx = mx * s->frame_num_offset / mx = mx * s->frame_num_offset /
......
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