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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-04-16 02:06:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-06-23 16:51:08 +0200 |
| commit | 90a384cde1631188fc87088ecbc6813c9885898e (patch) | |
| tree | 3d22327cba401bb1868ed16ded2e630fd401bfb3 | |
| parent | af109ff12581e616f7b3015c9c929ad6b54bdf3e (diff) | |
| download | ffmpeg-90a384cde1631188fc87088ecbc6813c9885898e.tar.gz | |
avfilter/f_select: fix loss of precission in SAD calculation
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5a8ef3c66b762f265b05aa096105555f1d26879c)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavfilter/f_select.c | 2 | ||||
| -rw-r--r-- | tests/ref/fate/filter-metadata-scenedetect | 8 |
2 files changed, 5 insertions, 5 deletions
diff --git a/libavfilter/f_select.c b/libavfilter/f_select.c index 60cc311e5f..1baa5c23d6 100644 --- a/libavfilter/f_select.c +++ b/libavfilter/f_select.c @@ -279,7 +279,7 @@ static double get_scene_score(AVFilterContext *ctx, AVFrame *frame) p2 += 8 * linesize; } emms_c(); - mafd = nb_sad ? sad / nb_sad : 0; + mafd = nb_sad ? (double)sad / nb_sad : 0; diff = fabs(mafd - select->prev_mafd); ret = av_clipf(FFMIN(mafd, diff) / 100., 0, 1); select->prev_mafd = mafd; diff --git a/tests/ref/fate/filter-metadata-scenedetect b/tests/ref/fate/filter-metadata-scenedetect index 67251dfe60..4e70723fe8 100644 --- a/tests/ref/fate/filter-metadata-scenedetect +++ b/tests/ref/fate/filter-metadata-scenedetect @@ -1,10 +1,10 @@ pkt_pts=1620|tag:lavfi.scene_score=1.000000 -pkt_pts=4140|tag:lavfi.scene_score=0.880000 +pkt_pts=4140|tag:lavfi.scene_score=0.876043 pkt_pts=5800|tag:lavfi.scene_score=1.000000 -pkt_pts=6720|tag:lavfi.scene_score=0.460000 +pkt_pts=6720|tag:lavfi.scene_score=0.463259 pkt_pts=8160|tag:lavfi.scene_score=1.000000 pkt_pts=9760|tag:lavfi.scene_score=1.000000 -pkt_pts=14080|tag:lavfi.scene_score=0.840000 +pkt_pts=14080|tag:lavfi.scene_score=0.841420 pkt_pts=15700|tag:lavfi.scene_score=1.000000 -pkt_pts=18500|tag:lavfi.scene_score=0.470000 +pkt_pts=18500|tag:lavfi.scene_score=0.471738 pkt_pts=21760|tag:lavfi.scene_score=1.000000 |