This fixes ticket #7997 as well as the vsynth*-prores_# FATE-tests (where * ranges over { 1, 2, 3, _lena } and # over { , _int, _444, _444_int }).
(Given that prev_dc is in the range -0xC000..0x3FFF, no overflow can happen upon multiplication with 2.) Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com> --- Actually, #7997 ran into the same issue as #7979 and so it is no longer reproducible with the given commandline since aef24efb (which fixed #7979). But it is still reproducible with e.g. the null muxer. libavcodec/proresenc_anatoliy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c index 0fc79fc1de..1fcb0ae913 100644 --- a/libavcodec/proresenc_anatoliy.c +++ b/libavcodec/proresenc_anatoliy.c @@ -224,7 +224,7 @@ static void encode_codeword(PutBitContext *pb, int val, int codebook) } #define QSCALE(qmat,ind,val) ((val) / ((qmat)[ind])) -#define TO_GOLOMB(val) (((val) << 1) ^ ((val) >> 31)) +#define TO_GOLOMB(val) (((val) * 2) ^ ((val) >> 31)) #define DIFF_SIGN(val, sign) (((val) >> 31) ^ (sign)) #define IS_NEGATIVE(val) ((((val) >> 31) ^ -1) + 1) #define TO_GOLOMB2(val,sign) ((val)==0 ? 0 : ((val) << 1) + (sign)) -- 2.20.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".