From e3cad7d49e9d7dde0f5159e443ad9b2f229dcbe9 Mon Sep 17 00:00:00 2001
From: FearlessTobi <thm.frey@gmail.com>
Date: Thu, 16 Jan 2020 18:47:36 +0100
Subject: audio_core: Switch to a faster interpolation technique

---
 src/audio_core/algorithm/interpolate.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

(limited to 'src/audio_core/algorithm/interpolate.h')

diff --git a/src/audio_core/algorithm/interpolate.h b/src/audio_core/algorithm/interpolate.h
index edbd6460f..1b9831a75 100644
--- a/src/audio_core/algorithm/interpolate.h
+++ b/src/audio_core/algorithm/interpolate.h
@@ -6,19 +6,12 @@
 
 #include <array>
 #include <vector>
-#include "audio_core/algorithm/filter.h"
 #include "common/common_types.h"
 
 namespace AudioCore {
 
 struct InterpolationState {
-    static constexpr std::size_t lanczos_taps = 4;
-    static constexpr std::size_t history_size = lanczos_taps * 2 - 1;
-
-    double current_ratio = 0.0;
-    CascadingFilter nyquist;
-    std::array<std::array<s16, 2>, history_size> history = {};
-    double position = 0;
+    int fraction = 0;
 };
 
 /// Interpolates input signal to produce output signal.
-- 
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