ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Wed Jan 29 19:20:29 2020 +0100| [20916f9bc4534678a87684994377c181d8aa16bc] | committer: Michael Niedermayer
avcodec/screenpresso: Optimize sum_delta_flipped() 553 -> 332 sec Testcase: 20280/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCREENPRESSO_fuzzer-6238663432470528 Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=20916f9bc4534678a87684994377c181d8aa16bc --- libavcodec/screenpresso.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/screenpresso.c b/libavcodec/screenpresso.c index 5fac100897..d73c24df83 100644 --- a/libavcodec/screenpresso.c +++ b/libavcodec/screenpresso.c @@ -94,8 +94,9 @@ static void sum_delta_flipped(uint8_t *dst, int dst_linesize, { int i; for (; height > 0; height--) { + const uint8_t *src1 = &src[(height - 1) * src_linesize]; for (i = 0; i < bytewidth; i++) - dst[i] += src[(height - 1) * src_linesize + i]; + dst[i] += src1[i]; dst += dst_linesize; } } _______________________________________________ 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".
