From 59d37f5a4e7014ee0e44af051f092fff9917399b Mon Sep 17 00:00:00 2001 From: Ganesh Ajjanagadde Date: Thu, 29 Oct 2015 00:16:34 -0400 Subject: [PATCH] avfilter/vf_psnr: use log10 instead of log()/log(10) This is likely more precise and conveys the intent better. Reviewed-by: Michael Niedermayer Signed-off-by: Ganesh Ajjanagadde --- libavfilter/vf_psnr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/vf_psnr.c b/libavfilter/vf_psnr.c index 36bbab259f..bce5c515c8 100644 --- a/libavfilter/vf_psnr.c +++ b/libavfilter/vf_psnr.c @@ -72,7 +72,7 @@ static inline unsigned pow2(unsigned base) static inline double get_psnr(double mse, uint64_t nb_frames, int max) { - return 10.0 * log(pow2(max) / (mse / nb_frames)) / log(10.0); + return 10.0 * log10(pow2(max) / (mse / nb_frames)); } static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)