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| author | bunnei <bunneidev@gmail.com> | 2018-12-11 17:45:53 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-11 17:45:53 +0100 |
| commit | 2c6679bb013af6c153e36b35606dddcc75f129dc (patch) | |
| tree | dbf9d1c2c1cb8daa2b7e7de86391612b519072ae /src/audio_core/algorithm/interpolate.cpp | |
| parent | Merge pull request #1888 from marcosvitali/glFrontFacing (diff) | |
| parent | Avoid (expensive) audio interpolation when sample rates already match (diff) | |
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Diffstat (limited to 'src/audio_core/algorithm/interpolate.cpp')
| -rw-r--r-- | src/audio_core/algorithm/interpolate.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/audio_core/algorithm/interpolate.cpp b/src/audio_core/algorithm/interpolate.cpp index 3aea9b0f2..5005ba519 100644 --- a/src/audio_core/algorithm/interpolate.cpp +++ b/src/audio_core/algorithm/interpolate.cpp @@ -54,8 +54,9 @@ std::vector<s16> Interpolate(InterpolationState& state, std::vector<s16> input, double l = 0.0; double r = 0.0; for (std::size_t j = 0; j < h.size(); j++) { - l += Lanczos(taps, pos + j - taps + 1) * h[j][0]; - r += Lanczos(taps, pos + j - taps + 1) * h[j][1]; + const double lanczos_calc = Lanczos(taps, pos + j - taps + 1); + l += lanczos_calc * h[j][0]; + r += lanczos_calc * h[j][1]; } output.emplace_back(static_cast<s16>(std::clamp(l, -32768.0, 32767.0))); output.emplace_back(static_cast<s16>(std::clamp(r, -32768.0, 32767.0))); |