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avutil/mathematics: Document av_rescale_rnd() behavior on non int64 results 

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer 2021-10-20 19:51:08 +02:00
parent c13a2f701d
commit e154353fdb
1 changed files with 1 additions and 0 deletions
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libavutil/mathematics.h
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@ -134,6 +134,7 @@ int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
*
* The operation is mathematically equivalent to `a * b / c`, but writing that
* directly can overflow, and does not support different rounding methods.
* If the result is not representable then INT64_MIN is returned.
*
* @see av_rescale(), av_rescale_q(), av_rescale_q_rnd()
*/