From 163a6499ea442c4f06c2e9333eb877a5acbd310f Mon Sep 17 00:00:00 2001
From: David <david@rowetel.com>
Date: Fri, 29 May 2020 20:22:57 +0930
Subject: [PATCH] fix memory leak

---
 src/codec2_pitch.c | 1 +
 src/freq.c         | 4 ++++
 src/freq.h         | 1 +
 src/lpcnet_dump.c  | 3 ++-
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/codec2_pitch.c b/src/codec2_pitch.c
index a267785..55fb5bc 100644
--- a/src/codec2_pitch.c
+++ b/src/codec2_pitch.c
@@ -113,6 +113,7 @@ int codec2_pitch_est(CODEC2_PITCH *pitch, float Sn[], float *f0, float *voicing)
 
 void codec2_pitch_destroy(CODEC2_PITCH *pitch)
 {
+    free(pitch->fft_fwd_cfg);
     nlp_destroy(pitch->nlp_states);
     free(pitch->w);
     free(pitch);
diff --git a/src/freq.c b/src/freq.c
index c88d071..235611e 100644
--- a/src/freq.c
+++ b/src/freq.c
@@ -140,6 +140,10 @@ static void check_init() {
   common.init = 1;
 }
 
+void freq_close() {
+    opus_fft_free(common.kfft,0);
+}
+
 void dct(float *out, const float *in) {
   int i;
   check_init();
diff --git a/src/freq.h b/src/freq.h
index 0316edd..314eabd 100644
--- a/src/freq.h
+++ b/src/freq.h
@@ -42,6 +42,7 @@
 
 #define NB_BANDS 18
 
+void freq_close(void);
 void compute_band_energy(float *bandE, const kiss_fft_cpx *X);
 void compute_band_corr(float *bandE, const kiss_fft_cpx *X, const kiss_fft_cpx *P);
 
diff --git a/src/lpcnet_dump.c b/src/lpcnet_dump.c
index d8a8409..58f9c98 100644
--- a/src/lpcnet_dump.c
+++ b/src/lpcnet_dump.c
@@ -87,7 +87,8 @@ static DenoiseState *rnnoise_create() {
 }
 
 static void rnnoise_destroy(DenoiseState *st) {
-  free(st);
+    freq_close();
+    free(st);
 }
 
 static short float2short(float x)