ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Tue Sep 27 01:20:27 2022 +0200| [3b09e8f5e9c0f419bd8cef7f4dd839cb4ed528d6] | committer: Andreas Rheinhardt
avcodec/jpeg2000dsp: Use unsigned to avoid overflow Affected the jpeg2000dsp checkasm test. Reviewed-by: Tomas Härdin <g...@haerdin.se> Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3b09e8f5e9c0f419bd8cef7f4dd839cb4ed528d6 --- libavcodec/jpeg2000dsp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/libavcodec/jpeg2000dsp.c b/libavcodec/jpeg2000dsp.c index b61be3b72f..b1bff6d5b1 100644 --- a/libavcodec/jpeg2000dsp.c +++ b/libavcodec/jpeg2000dsp.c @@ -76,14 +76,13 @@ static void ict_int(void *_src0, void *_src1, void *_src2, int csize) static void rct_int(void *_src0, void *_src1, void *_src2, int csize) { - int32_t *src0 = _src0, *src1 = _src1, *src2 = _src2; - int32_t i0, i1, i2; + uint32_t *src0 = _src0, *src1 = _src1, *src2 = _src2; int i; for (i = 0; i < csize; i++) { - i1 = *src0 - (*src2 + *src1 >> 2); - i0 = i1 + *src2; - i2 = i1 + *src1; + uint32_t i1 = *src0 - ((int32_t)(*src2 + *src1) >> 2); + int32_t i0 = i1 + *src2; + int32_t i2 = i1 + *src1; *src0++ = i0; *src1++ = i1; *src2++ = i2; _______________________________________________ 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".
