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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
parent685617ac29d7ca5fa0d83929b2b24988a2261ef9 (diff)
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.
-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;
}