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authorClément Bœsch <ubitux@gmail.com>2013-04-10 02:38:07 +0200
committerClément Bœsch <ubitux@gmail.com>2013-04-10 02:38:54 +0200
commitd2e051e30c0ffc1e80a7e7e76ccdfbeb2956daa6 (patch)
tree5113084c029a8ad6e49f61b8872772bf707a3c40 /libavfilter/vf_separatefields.c
parent685617ac29d7ca5fa0d83929b2b24988a2261ef9 (diff)
downloadffmpeg-d2e051e30c0ffc1e80a7e7e76ccdfbeb2956daa6.tar.gz
lavfi/separatefields: adjust tb to avoid rounding errors.
Since the PTS need double accuracy, the timebase denominator is doubled as well, and this new time base is used for the timestamp unit.
Diffstat (limited to 'libavfilter/vf_separatefields.c')
-rw-r--r--libavfilter/vf_separatefields.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libavfilter/vf_separatefields.c b/libavfilter/vf_separatefields.c
index 81f37cf7c5..5849b62b77 100644
--- a/libavfilter/vf_separatefields.c
+++ b/libavfilter/vf_separatefields.c
@@ -41,11 +41,13 @@ static int config_props_output(AVFilterLink *outlink)
return AVERROR_INVALIDDATA;
}
+ outlink->time_base.num = inlink->time_base.num;
+ outlink->time_base.den = inlink->time_base.den * 2;
outlink->frame_rate.num = inlink->frame_rate.num * 2;
outlink->frame_rate.den = inlink->frame_rate.den;
outlink->w = inlink->w;
outlink->h = inlink->h / 2;
- sf->ts_unit = av_q2d(av_inv_q(av_mul_q(outlink->frame_rate, inlink->time_base)));
+ sf->ts_unit = av_q2d(av_inv_q(av_mul_q(outlink->frame_rate, outlink->time_base)));
return 0;
}