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FFmpeg/libavfilter
Marton Balint 8d6f3bcb96 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>
2024-11-29 21:16:22 +01:00
..
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