ffmpeg | branch: master | Michael Goulet <[email protected]> | Thu Jun 16 13:17:25 2022 +0200| [c02dd59cd302fabec60fddbaf9b7ce7a46823ff6] | committer: Thilo Borgmann
lavc/dovi_rpu: Fix UB for possible left shift of negative values It is undefined to left-shift a negative value. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c02dd59cd302fabec60fddbaf9b7ce7a46823ff6 --- libavcodec/dovi_rpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/dovi_rpu.c b/libavcodec/dovi_rpu.c index a87562c8a3..dd38936552 100644 --- a/libavcodec/dovi_rpu.c +++ b/libavcodec/dovi_rpu.c @@ -172,7 +172,7 @@ static inline int64_t get_se_coef(GetBitContext *gb, const AVDOVIRpuDataHeader * case RPU_COEFF_FIXED: ipart = get_se_golomb_long(gb); fpart.u32 = get_bits_long(gb, hdr->coef_log2_denom); - return (ipart << hdr->coef_log2_denom) + fpart.u32; + return ipart * (1LL << hdr->coef_log2_denom) + fpart.u32; case RPU_COEFF_FLOAT: fpart.u32 = get_bits_long(gb, 32); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
