ffmpeg | branch: master | Andreas Rheinhardt <[email protected]> | Sun Nov 6 17:17:39 2022 +0100| [a7ccfdc0d7c9d5726654fd5efff459ac872165f1] | committer: Andreas Rheinhardt
avfilter/vf_hqdn3d: Fix left-shift of negative numbers Affected filter-hqdn3d and filter-hqdn3d-sample FATE-tests. Signed-off-by: Andreas Rheinhardt <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a7ccfdc0d7c9d5726654fd5efff459ac872165f1 --- libavfilter/vf_hqdn3d.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/vf_hqdn3d.c b/libavfilter/vf_hqdn3d.c index ce2b9a2974..c796ea9ab4 100644 --- a/libavfilter/vf_hqdn3d.c +++ b/libavfilter/vf_hqdn3d.c @@ -180,7 +180,7 @@ static void precalc_coefs(double dist25, int depth, int16_t *ct) gamma = log(0.25) / log(1.0 - FFMIN(dist25,252.0)/255.0 - 0.00001); for (i = -(256<<LUT_BITS); i < 256<<LUT_BITS; i++) { - double f = ((i<<(9-LUT_BITS)) + (1<<(8-LUT_BITS)) - 1) / 512.0; // midpoint of the bin + double f = (i * (1 << (9-LUT_BITS)) + (1<<(8-LUT_BITS)) - 1) / 512.0; // midpoint of the bin simil = FFMAX(0, 1.0 - fabs(f) / 255.0); C = pow(simil, gamma) * 256.0 * f; ct[(256<<LUT_BITS)+i] = lrint(C); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
