On Thu, 28 Nov 2024, Nicolas George wrote:
Marton Balint (12024-11-10):
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 <c...@passwd.hu>
---
libavfilter/asrc_sine.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
Sorry for the delay. The logic looks sound, and I am assuming you have
checked that it now gives periodical output when the frequency is a
divisor of the sample frequency, so ok.
Thanks, will apply the series with your comments.
Regards,
Marton
Regards,
--
Nicolas George
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