ffmpeg | branch: master | Paul B Mahol <[email protected]> | Sat Dec 24 10:26:27 2016 +0100| [ab31b46b89362041a8e37cb0aac67cf3b53c2524] | committer: Paul B Mahol
avcodec/pixlet: avoid some overflows Signed-off-by: Paul B Mahol <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ab31b46b89362041a8e37cb0aac67cf3b53c2524 --- libavcodec/pixlet.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c index 1755fb8..e78b666 100644 --- a/libavcodec/pixlet.c +++ b/libavcodec/pixlet.c @@ -246,7 +246,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i value = 0; } else { xflag &= 1u; - tmp = c * ((yflag + 1) >> 1) + (c >> 1); + tmp = (int64_t)c * ((yflag + 1) >> 1) + (c >> 1); value = xflag + (tmp ^ -xflag); } @@ -256,7 +256,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i j = 0; dst += stride; } - state += d * yflag - (d * state >> 8); + state += (int64_t)d * yflag - (d * state >> 8); flag = 0; _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
