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authorMarton Balint <cus@passwd.hu>2024-11-10 01:14:06 +0100
committerMarton Balint <cus@passwd.hu>2024-11-29 21:16:22 +0100
commit8d6f3bcb96043a590dd0ef60faf194066195d1cc (patch)
tree8bc33826c1c5846e31b4c5da3589a905f5f6f1ec /tests/fate/segafilm.mak
parent06247ae7460df0353d470c27465e880a97977f80 (diff)
downloadffmpeg-8d6f3bcb96043a590dd0ef60faf194066195d1cc.tar.gz
avfilter/asrc_sine: increase frequency accuracy
Previously the delta phase was fixed point fractional with 2^32 fractions, which caused inaccuracies in the output frequency, unless the input frequency*2^32 was divisable by the sample rate. This patch improves frequency accuracy by tracking subfractions of the delta phase fractions. For this we are using a denominator which is a multiple of the sample rate, making sure that integer frequencies are always accurately represented. Signed-off-by: Marton Balint <cus@passwd.hu>
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