ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Tue Aug 13 22:07:17 2024 -0300| [9880fea9306cd86c0907e7ac40716fa233abba14] | committer: James Almer
avcodec/snowenc: sign extend a variable before shifting Fixes "libavcodec/snowenc.c:718:27: runtime error: left shift of 8509032 by 8 places cannot be represented in type 'int'" as seen in fate-vsynth2-snow-hpel under ubsan. Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9880fea9306cd86c0907e7ac40716fa233abba14 --- libavcodec/snowenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c index 0b87d751b8..eac81d0d7c 100644 --- a/libavcodec/snowenc.c +++ b/libavcodec/snowenc.c @@ -715,7 +715,7 @@ static int get_dc(SnowEncContext *enc, int mb_x, int mb_y, int plane_index) } *b= backup; - return av_clip_uint8( ROUNDED_DIV(ab<<LOG2_OBMC_MAX, aa) ); //FIXME we should not need clipping + return av_clip_uint8( ROUNDED_DIV((int64_t)ab<<LOG2_OBMC_MAX, aa) ); //FIXME we should not need clipping } static inline int get_block_bits(SnowContext *s, int x, int y, int w){ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
