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authorNicolas George <george@nsup.org>2020-04-16 21:36:00 +0200
committerNicolas George <george@nsup.org>2020-05-23 15:51:44 +0200
commit6b65c4ec54511871f345cfa76a499fa65d94c0b8 (patch)
tree189dc349ae343acf78b1b05de630a0bfb200b545 /libavutil/rational.h
parentbeb98c0181b70c0d32cf19efe2a78d2c397b2508 (diff)
downloadffmpeg-6b65c4ec54511871f345cfa76a499fa65d94c0b8.tar.gz
lavu: add av_gcd_q().
Diffstat (limited to 'libavutil/rational.h')
-rw-r--r--libavutil/rational.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/libavutil/rational.h b/libavutil/rational.h
index 5c6b67b4e9..cbb08a0baf 100644
--- a/libavutil/rational.h
+++ b/libavutil/rational.h
@@ -208,6 +208,12 @@ int av_find_nearest_q_idx(AVRational q, const AVRational* q_list);
uint32_t av_q2intfloat(AVRational q);
/**
+ * Return the best rational so that a and b are multiple of it.
+ * If the resulting denominator is larger than max_den, return def.
+ */
+AVRational av_gcd_q(AVRational a, AVRational b, int max_den, AVRational def);
+
+/**
* @}
*/