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| author | Marton Balint <cus@passwd.hu> | 2017-12-10 00:29:12 +0100 |
|---|---|---|
| committer | Marton Balint <cus@passwd.hu> | 2017-12-21 23:03:10 +0100 |
| commit | e1113a83ccb6bb30e3ad865956fe9eed0d650394 (patch) | |
| tree | 9ad6cf783ffd121044a77583042af111896152d0 /libavfilter/vf_framerate.c | |
| parent | be15304ee610252636120f5e09fad4b015b34a31 (diff) | |
| download | ffmpeg-e1113a83ccb6bb30e3ad865956fe9eed0d650394.tar.gz | |
avfilter/vf_framerate: fix scene change detection score
- normalize score to [0..100] instead of [0..85]
- change the default score to 8.2 to roughly keep existing behaviour
- take into account bit depth
- do not truncate to integer
Signed-off-by: Marton Balint <cus@passwd.hu>
Diffstat (limited to 'libavfilter/vf_framerate.c')
| -rw-r--r-- | libavfilter/vf_framerate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/vf_framerate.c b/libavfilter/vf_framerate.c index 1cad2305ad..dd106f8e5b 100644 --- a/libavfilter/vf_framerate.c +++ b/libavfilter/vf_framerate.c @@ -88,7 +88,7 @@ static const AVOption framerate_options[] = { {"interp_start", "point to start linear interpolation", OFFSET(interp_start), AV_OPT_TYPE_INT, {.i64=15}, 0, 255, V|F }, {"interp_end", "point to end linear interpolation", OFFSET(interp_end), AV_OPT_TYPE_INT, {.i64=240}, 0, 255, V|F }, - {"scene", "scene change level", OFFSET(scene_score), AV_OPT_TYPE_DOUBLE, {.dbl=7.0}, 0, INT_MAX, V|F }, + {"scene", "scene change level", OFFSET(scene_score), AV_OPT_TYPE_DOUBLE, {.dbl=8.2}, 0, INT_MAX, V|F }, {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64=1}, 0, INT_MAX, V|F, "flags" }, {"scene_change_detect", "enable scene change detection", 0, AV_OPT_TYPE_CONST, {.i64=FRAMERATE_FLAG_SCD}, INT_MIN, INT_MAX, V|F, "flags" }, @@ -183,7 +183,7 @@ static double get_scene_score(AVFilterContext *ctx, AVFrame *crnt, AVFrame *next else sad = scene_sad16(s, (const uint16_t*)crnt->data[0], crnt->linesize[0] >> 1, (const uint16_t*)next->data[0], next->linesize[0] >> 1, crnt->height); - mafd = sad / (crnt->height * crnt->width * 3); + mafd = (double)sad * 100.0 / (crnt->height * crnt->width) / (1 << s->bitdepth); diff = fabs(mafd - s->prev_mafd); ret = av_clipf(FFMIN(mafd, diff), 0, 100.0); s->prev_mafd = mafd; |