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-rw-r--r--servers/audio/audio_effect.cpp8
-rw-r--r--servers/audio/audio_rb_resampler.cpp8
-rw-r--r--servers/audio/audio_stream.cpp84
-rw-r--r--servers/audio/audio_stream.h32
-rw-r--r--servers/audio/effects/audio_effect_delay.cpp2
-rw-r--r--servers/audio/effects/audio_effect_distortion.cpp6
-rw-r--r--servers/audio/effects/audio_effect_eq.cpp6
-rw-r--r--servers/audio/effects/audio_effect_filter.cpp12
-rw-r--r--servers/audio/effects/audio_effect_record.cpp8
-rw-r--r--servers/audio/effects/audio_stream_generator.cpp10
-rw-r--r--servers/audio/effects/audio_stream_generator.h8
-rw-r--r--servers/audio/effects/reverb_filter.cpp8
12 files changed, 82 insertions, 110 deletions
diff --git a/servers/audio/audio_effect.cpp b/servers/audio/audio_effect.cpp
index f38d0adfb2..ef0e3197e1 100644
--- a/servers/audio/audio_effect.cpp
+++ b/servers/audio/audio_effect.cpp
@@ -36,11 +36,9 @@ void AudioEffectInstance::process(const AudioFrame *p_src_frames, AudioFrame *p_
}
}
bool AudioEffectInstance::process_silence() const {
- bool ret;
- if (GDVIRTUAL_CALL(_process_silence, ret)) {
- return ret;
- }
- return false;
+ bool ret = false;
+ GDVIRTUAL_CALL(_process_silence, ret);
+ return ret;
}
void AudioEffectInstance::_bind_methods() {
diff --git a/servers/audio/audio_rb_resampler.cpp b/servers/audio/audio_rb_resampler.cpp
index 0cfba17563..adb0dc32ea 100644
--- a/servers/audio/audio_rb_resampler.cpp
+++ b/servers/audio/audio_rb_resampler.cpp
@@ -57,14 +57,14 @@ uint32_t AudioRBResampler::_resample(AudioFrame *p_dest, int p_todo, int32_t p_i
uint32_t pos_next = (pos + 1) & rb_mask;
// since this is a template with a known compile time value (C), conditionals go away when compiling.
- if (C == 1) {
+ if constexpr (C == 1) {
float v0 = rb[pos];
float v0n = rb[pos_next];
v0 += (v0n - v0) * frac;
p_dest[i] = AudioFrame(v0, v0);
}
- if (C == 2) {
+ if constexpr (C == 2) {
float v0 = rb[(pos << 1) + 0];
float v1 = rb[(pos << 1) + 1];
float v0n = rb[(pos_next << 1) + 0];
@@ -76,7 +76,7 @@ uint32_t AudioRBResampler::_resample(AudioFrame *p_dest, int p_todo, int32_t p_i
}
// This will probably never be used, but added anyway
- if (C == 4) {
+ if constexpr (C == 4) {
float v0 = rb[(pos << 2) + 0];
float v1 = rb[(pos << 2) + 1];
float v0n = rb[(pos_next << 2) + 0];
@@ -86,7 +86,7 @@ uint32_t AudioRBResampler::_resample(AudioFrame *p_dest, int p_todo, int32_t p_i
p_dest[i] = AudioFrame(v0, v1);
}
- if (C == 6) {
+ if constexpr (C == 6) {
float v0 = rb[(pos * 6) + 0];
float v1 = rb[(pos * 6) + 1];
float v0n = rb[(pos_next * 6) + 0];
diff --git a/servers/audio/audio_stream.cpp b/servers/audio/audio_stream.cpp
index 4252131161..33d4c816f2 100644
--- a/servers/audio/audio_stream.cpp
+++ b/servers/audio/audio_stream.cpp
@@ -33,7 +33,7 @@
#include "core/config/project_settings.h"
#include "core/os/os.h"
-void AudioStreamPlayback::start(float p_from_pos) {
+void AudioStreamPlayback::start(double p_from_pos) {
if (GDVIRTUAL_CALL(_start, p_from_pos)) {
return;
}
@@ -54,24 +54,20 @@ bool AudioStreamPlayback::is_playing() const {
}
int AudioStreamPlayback::get_loop_count() const {
- int ret;
- if (GDVIRTUAL_CALL(_get_loop_count, ret)) {
- return ret;
- }
- return 0;
+ int ret = 0;
+ GDVIRTUAL_CALL(_get_loop_count, ret);
+ return ret;
}
-float AudioStreamPlayback::get_playback_position() const {
- float ret;
+double AudioStreamPlayback::get_playback_position() const {
+ double ret;
if (GDVIRTUAL_CALL(_get_playback_position, ret)) {
return ret;
}
ERR_FAIL_V_MSG(0, "AudioStreamPlayback::get_playback_position unimplemented!");
}
-void AudioStreamPlayback::seek(float p_time) {
- if (GDVIRTUAL_CALL(_seek, p_time)) {
- return;
- }
+void AudioStreamPlayback::seek(double p_time) {
+ GDVIRTUAL_CALL(_seek, p_time);
}
int AudioStreamPlayback::mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) {
@@ -201,58 +197,44 @@ Ref<AudioStreamPlayback> AudioStream::instantiate_playback() {
}
String AudioStream::get_stream_name() const {
String ret;
- if (GDVIRTUAL_CALL(_get_stream_name, ret)) {
- return ret;
- }
- return String();
+ GDVIRTUAL_CALL(_get_stream_name, ret);
+ return ret;
}
-float AudioStream::get_length() const {
- float ret;
- if (GDVIRTUAL_CALL(_get_length, ret)) {
- return ret;
- }
- return 0;
+double AudioStream::get_length() const {
+ double ret = 0;
+ GDVIRTUAL_CALL(_get_length, ret);
+ return ret;
}
bool AudioStream::is_monophonic() const {
- bool ret;
- if (GDVIRTUAL_CALL(_is_monophonic, ret)) {
- return ret;
- }
- return true;
+ bool ret = true;
+ GDVIRTUAL_CALL(_is_monophonic, ret);
+ return ret;
}
double AudioStream::get_bpm() const {
double ret = 0;
- if (GDVIRTUAL_CALL(_get_bpm, ret)) {
- return ret;
- }
- return 0;
+ GDVIRTUAL_CALL(_get_bpm, ret);
+ return ret;
}
bool AudioStream::has_loop() const {
bool ret = 0;
- if (GDVIRTUAL_CALL(_has_loop, ret)) {
- return ret;
- }
- return 0;
+ GDVIRTUAL_CALL(_has_loop, ret);
+ return ret;
}
int AudioStream::get_bar_beats() const {
int ret = 0;
- if (GDVIRTUAL_CALL(_get_bar_beats, ret)) {
- return ret;
- }
- return 0;
+ GDVIRTUAL_CALL(_get_bar_beats, ret);
+ return ret;
}
int AudioStream::get_beat_count() const {
int ret = 0;
- if (GDVIRTUAL_CALL(_get_beat_count, ret)) {
- return ret;
- }
- return 0;
+ GDVIRTUAL_CALL(_get_beat_count, ret);
+ return ret;
}
void AudioStream::tag_used(float p_offset) {
@@ -309,7 +291,7 @@ String AudioStreamMicrophone::get_stream_name() const {
return "Microphone";
}
-float AudioStreamMicrophone::get_length() const {
+double AudioStreamMicrophone::get_length() const {
return 0;
}
@@ -382,7 +364,7 @@ float AudioStreamPlaybackMicrophone::get_stream_sampling_rate() {
return AudioDriver::get_singleton()->get_mix_rate();
}
-void AudioStreamPlaybackMicrophone::start(float p_from_pos) {
+void AudioStreamPlaybackMicrophone::start(double p_from_pos) {
if (active) {
return;
}
@@ -415,11 +397,11 @@ int AudioStreamPlaybackMicrophone::get_loop_count() const {
return 0;
}
-float AudioStreamPlaybackMicrophone::get_playback_position() const {
+double AudioStreamPlaybackMicrophone::get_playback_position() const {
return 0;
}
-void AudioStreamPlaybackMicrophone::seek(float p_time) {
+void AudioStreamPlaybackMicrophone::seek(double p_time) {
// Can't seek a microphone input
}
@@ -664,7 +646,7 @@ String AudioStreamRandomizer::get_stream_name() const {
return "Randomizer";
}
-float AudioStreamRandomizer::get_length() const {
+double AudioStreamRandomizer::get_length() const {
return 0;
}
@@ -769,7 +751,7 @@ void AudioStreamRandomizer::_bind_methods() {
AudioStreamRandomizer::AudioStreamRandomizer() {}
-void AudioStreamPlaybackRandomizer::start(float p_from_pos) {
+void AudioStreamPlaybackRandomizer::start(double p_from_pos) {
playing = playback;
{
float range_from = 1.0 / randomizer->random_pitch_scale;
@@ -812,7 +794,7 @@ int AudioStreamPlaybackRandomizer::get_loop_count() const {
return 0;
}
-float AudioStreamPlaybackRandomizer::get_playback_position() const {
+double AudioStreamPlaybackRandomizer::get_playback_position() const {
if (playing.is_valid()) {
return playing->get_playback_position();
}
@@ -820,7 +802,7 @@ float AudioStreamPlaybackRandomizer::get_playback_position() const {
return 0;
}
-void AudioStreamPlaybackRandomizer::seek(float p_time) {
+void AudioStreamPlaybackRandomizer::seek(double p_time) {
if (playing.is_valid()) {
playing->seek(p_time);
}
diff --git a/servers/audio/audio_stream.h b/servers/audio/audio_stream.h
index 7c4577977d..c41475010c 100644
--- a/servers/audio/audio_stream.h
+++ b/servers/audio/audio_stream.h
@@ -47,23 +47,23 @@ class AudioStreamPlayback : public RefCounted {
protected:
static void _bind_methods();
- GDVIRTUAL1(_start, float)
+ GDVIRTUAL1(_start, double)
GDVIRTUAL0(_stop)
GDVIRTUAL0RC(bool, _is_playing)
GDVIRTUAL0RC(int, _get_loop_count)
- GDVIRTUAL0RC(float, _get_playback_position)
- GDVIRTUAL1(_seek, float)
+ GDVIRTUAL0RC(double, _get_playback_position)
+ GDVIRTUAL1(_seek, double)
GDVIRTUAL3R(int, _mix, GDNativePtr<AudioFrame>, float, int)
GDVIRTUAL0(_tag_used_streams)
public:
- virtual void start(float p_from_pos = 0.0);
+ virtual void start(double p_from_pos = 0.0);
virtual void stop();
virtual bool is_playing() const;
virtual int get_loop_count() const; //times it looped
- virtual float get_playback_position() const;
- virtual void seek(float p_time);
+ virtual double get_playback_position() const;
+ virtual void seek(double p_time);
virtual void tag_used_streams();
@@ -119,7 +119,7 @@ protected:
GDVIRTUAL0RC(Ref<AudioStreamPlayback>, _instantiate_playback)
GDVIRTUAL0RC(String, _get_stream_name)
- GDVIRTUAL0RC(float, _get_length)
+ GDVIRTUAL0RC(double, _get_length)
GDVIRTUAL0RC(bool, _is_monophonic)
GDVIRTUAL0RC(double, _get_bpm)
GDVIRTUAL0RC(bool, _has_loop)
@@ -135,7 +135,7 @@ public:
virtual int get_bar_beats() const;
virtual int get_beat_count() const;
- virtual float get_length() const;
+ virtual double get_length() const;
virtual bool is_monophonic() const;
void tag_used(float p_offset);
@@ -161,7 +161,7 @@ public:
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
virtual String get_stream_name() const override;
- virtual float get_length() const override; //if supported, otherwise return 0
+ virtual double get_length() const override; //if supported, otherwise return 0
virtual bool is_monophonic() const override;
@@ -180,18 +180,18 @@ class AudioStreamPlaybackMicrophone : public AudioStreamPlaybackResampled {
protected:
virtual int _mix_internal(AudioFrame *p_buffer, int p_frames) override;
virtual float get_stream_sampling_rate() override;
- virtual float get_playback_position() const override;
+ virtual double get_playback_position() const override;
public:
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
- virtual void start(float p_from_pos = 0.0) override;
+ virtual void start(double p_from_pos = 0.0) override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual int get_loop_count() const override; //times it looped
- virtual void seek(float p_time) override;
+ virtual void seek(double p_time) override;
virtual void tag_used_streams() override;
@@ -265,7 +265,7 @@ public:
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
virtual String get_stream_name() const override;
- virtual float get_length() const override; //if supported, otherwise return 0
+ virtual double get_length() const override; //if supported, otherwise return 0
virtual bool is_monophonic() const override;
AudioStreamRandomizer();
@@ -283,14 +283,14 @@ class AudioStreamPlaybackRandomizer : public AudioStreamPlayback {
float volume_scale;
public:
- virtual void start(float p_from_pos = 0.0) override;
+ virtual void start(double p_from_pos = 0.0) override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual int get_loop_count() const override; //times it looped
- virtual float get_playback_position() const override;
- virtual void seek(float p_time) override;
+ virtual double get_playback_position() const override;
+ virtual void seek(double p_time) override;
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
diff --git a/servers/audio/effects/audio_effect_delay.cpp b/servers/audio/effects/audio_effect_delay.cpp
index f71ff05b23..69c62e3a13 100644
--- a/servers/audio/effects/audio_effect_delay.cpp
+++ b/servers/audio/effects/audio_effect_delay.cpp
@@ -94,7 +94,7 @@ void AudioEffectDelayInstance::_process_chunk(const AudioFrame *p_src_frames, Au
//apply lowpass and feedback gain
AudioFrame fb_in = out * feedback_level_f * lpf_ic + h * lpf_c;
- fb_in.undenormalise(); //avoid denormals
+ fb_in.undenormalize(); //avoid denormals
h = fb_in;
fb_buf[feedback_buffer_pos] = fb_in;
diff --git a/servers/audio/effects/audio_effect_distortion.cpp b/servers/audio/effects/audio_effect_distortion.cpp
index 5987ed7bb2..25ca0cfdfe 100644
--- a/servers/audio/effects/audio_effect_distortion.cpp
+++ b/servers/audio/effects/audio_effect_distortion.cpp
@@ -50,7 +50,7 @@ void AudioEffectDistortionInstance::process(const AudioFrame *p_src_frames, Audi
float lofi_mult = powf(2.0, 2.0 + (1.0 - drive_f) * 14); //goes from 16 to 2 bits
for (int i = 0; i < p_frame_count * 2; i++) {
- float out = undenormalise(src[i] * lpf_ic + lpf_c * h[i & 1]);
+ float out = undenormalize(src[i] * lpf_ic + lpf_c * h[i & 1]);
h[i & 1] = out;
float a = out;
float ha = src[i] - out; //high freqs
@@ -160,10 +160,10 @@ void AudioEffectDistortion::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_post_gain"), &AudioEffectDistortion::get_post_gain);
ADD_PROPERTY(PropertyInfo(Variant::INT, "mode", PROPERTY_HINT_ENUM, "Clip,ATan,LoFi,Overdrive,Wave Shape"), "set_mode", "get_mode");
- ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pre_gain", PROPERTY_HINT_RANGE, "-60,60,0.01"), "set_pre_gain", "get_pre_gain");
+ ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pre_gain", PROPERTY_HINT_RANGE, "-60,60,0.01,suffix:dB"), "set_pre_gain", "get_pre_gain");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "keep_hf_hz", PROPERTY_HINT_RANGE, "1,20500,1,suffix:Hz"), "set_keep_hf_hz", "get_keep_hf_hz");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "drive", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_drive", "get_drive");
- ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "post_gain", PROPERTY_HINT_RANGE, "-80,24,0.01"), "set_post_gain", "get_post_gain");
+ ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "post_gain", PROPERTY_HINT_RANGE, "-80,24,0.01,suffix:dB"), "set_post_gain", "get_post_gain");
BIND_ENUM_CONSTANT(MODE_CLIP);
BIND_ENUM_CONSTANT(MODE_ATAN);
diff --git a/servers/audio/effects/audio_effect_eq.cpp b/servers/audio/effects/audio_effect_eq.cpp
index 14ece8d93e..8a71ef0be7 100644
--- a/servers/audio/effects/audio_effect_eq.cpp
+++ b/servers/audio/effects/audio_effect_eq.cpp
@@ -128,8 +128,8 @@ AudioEffectEQ::AudioEffectEQ(EQ::Preset p_preset) {
gain.resize(eq.get_band_count());
for (int i = 0; i < gain.size(); i++) {
gain.write[i] = 0.0;
- String name = "band_db/" + itos(eq.get_band_frequency(i)) + "_hz";
- prop_band_map[name] = i;
- band_names.push_back(name);
+ String band_name = "band_db/" + itos(eq.get_band_frequency(i)) + "_hz";
+ prop_band_map[band_name] = i;
+ band_names.push_back(band_name);
}
}
diff --git a/servers/audio/effects/audio_effect_filter.cpp b/servers/audio/effects/audio_effect_filter.cpp
index a9409076cd..68f8e334df 100644
--- a/servers/audio/effects/audio_effect_filter.cpp
+++ b/servers/audio/effects/audio_effect_filter.cpp
@@ -36,13 +36,13 @@ void AudioEffectFilterInstance::_process_filter(const AudioFrame *p_src_frames,
for (int i = 0; i < p_frame_count; i++) {
float f = p_src_frames[i].l;
filter_process[0][0].process_one(f);
- if (S > 1) {
+ if constexpr (S > 1) {
filter_process[0][1].process_one(f);
}
- if (S > 2) {
+ if constexpr (S > 2) {
filter_process[0][2].process_one(f);
}
- if (S > 3) {
+ if constexpr (S > 3) {
filter_process[0][3].process_one(f);
}
@@ -52,13 +52,13 @@ void AudioEffectFilterInstance::_process_filter(const AudioFrame *p_src_frames,
for (int i = 0; i < p_frame_count; i++) {
float f = p_src_frames[i].r;
filter_process[1][0].process_one(f);
- if (S > 1) {
+ if constexpr (S > 1) {
filter_process[1][1].process_one(f);
}
- if (S > 2) {
+ if constexpr (S > 2) {
filter_process[1][2].process_one(f);
}
- if (S > 3) {
+ if constexpr (S > 3) {
filter_process[1][3].process_one(f);
}
diff --git a/servers/audio/effects/audio_effect_record.cpp b/servers/audio/effects/audio_effect_record.cpp
index fff6dbc32a..b2e57c9a01 100644
--- a/servers/audio/effects/audio_effect_record.cpp
+++ b/servers/audio/effects/audio_effect_record.cpp
@@ -116,19 +116,11 @@ void AudioEffectRecordInstance::init() {
recording_data.clear(); //Clear data completely and reset length
is_recording = true;
-#ifdef NO_THREADS
- AudioServer::get_singleton()->add_update_callback(&AudioEffectRecordInstance::_update, this);
-#else
io_thread.start(_thread_callback, this);
-#endif
}
void AudioEffectRecordInstance::finish() {
-#ifdef NO_THREADS
- AudioServer::get_singleton()->remove_update_callback(&AudioEffectRecordInstance::_update, this);
-#else
io_thread.wait_to_finish();
-#endif
}
AudioEffectRecordInstance::~AudioEffectRecordInstance() {
diff --git a/servers/audio/effects/audio_stream_generator.cpp b/servers/audio/effects/audio_stream_generator.cpp
index 6365dacc80..547b60a317 100644
--- a/servers/audio/effects/audio_stream_generator.cpp
+++ b/servers/audio/effects/audio_stream_generator.cpp
@@ -60,7 +60,7 @@ String AudioStreamGenerator::get_stream_name() const {
return "UserFeed";
}
-float AudioStreamGenerator::get_length() const {
+double AudioStreamGenerator::get_length() const {
return 0;
}
@@ -108,7 +108,7 @@ bool AudioStreamGeneratorPlayback::push_buffer(const PackedVector2Array &p_frame
}
const Vector2 *r = p_frames.ptr();
- if (sizeof(real_t) == 4) {
+ if constexpr (sizeof(real_t) == 4) {
//write directly
buffer.write((const AudioFrame *)r, to_write);
} else {
@@ -167,7 +167,7 @@ float AudioStreamGeneratorPlayback::get_stream_sampling_rate() {
return generator->get_mix_rate();
}
-void AudioStreamGeneratorPlayback::start(float p_from_pos) {
+void AudioStreamGeneratorPlayback::start(double p_from_pos) {
if (mixed == 0.0) {
begin_resample();
}
@@ -188,11 +188,11 @@ int AudioStreamGeneratorPlayback::get_loop_count() const {
return 0;
}
-float AudioStreamGeneratorPlayback::get_playback_position() const {
+double AudioStreamGeneratorPlayback::get_playback_position() const {
return mixed;
}
-void AudioStreamGeneratorPlayback::seek(float p_time) {
+void AudioStreamGeneratorPlayback::seek(double p_time) {
//no seek possible
}
diff --git a/servers/audio/effects/audio_stream_generator.h b/servers/audio/effects/audio_stream_generator.h
index a0bed0fda5..21cb3954d3 100644
--- a/servers/audio/effects/audio_stream_generator.h
+++ b/servers/audio/effects/audio_stream_generator.h
@@ -53,7 +53,7 @@ public:
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
virtual String get_stream_name() const override;
- virtual float get_length() const override;
+ virtual double get_length() const override;
virtual bool is_monophonic() const override;
AudioStreamGenerator();
};
@@ -74,14 +74,14 @@ protected:
static void _bind_methods();
public:
- virtual void start(float p_from_pos = 0.0) override;
+ virtual void start(double p_from_pos = 0.0) override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual int get_loop_count() const override; //times it looped
- virtual float get_playback_position() const override;
- virtual void seek(float p_time) override;
+ virtual double get_playback_position() const override;
+ virtual void seek(double p_time) override;
bool push_frame(const Vector2 &p_frame);
bool can_push_buffer(int p_frames) const;
diff --git a/servers/audio/effects/reverb_filter.cpp b/servers/audio/effects/reverb_filter.cpp
index 0363706714..2b60b73b7e 100644
--- a/servers/audio/effects/reverb_filter.cpp
+++ b/servers/audio/effects/reverb_filter.cpp
@@ -77,7 +77,7 @@ void Reverb::process(float *p_src, float *p_dst, int p_frames) {
read_pos += echo_buffer_size;
}
- float in = undenormalise(echo_buffer[read_pos] * params.predelay_fb + p_src[i]);
+ float in = undenormalize(echo_buffer[read_pos] * params.predelay_fb + p_src[i]);
echo_buffer[echo_buffer_pos] = in;
@@ -111,7 +111,7 @@ void Reverb::process(float *p_src, float *p_dst, int p_frames) {
c.pos = 0;
}
- float out = undenormalise(c.buffer[c.pos] * c.feedback);
+ float out = undenormalize(c.buffer[c.pos] * c.feedback);
out = out * (1.0 - c.damp) + c.damp_h * c.damp; //lowpass
c.damp_h = out;
c.buffer[c.pos] = input_buffer[j] + out;
@@ -138,7 +138,7 @@ void Reverb::process(float *p_src, float *p_dst, int p_frames) {
ap=&allpass[m_ap]; \
if (ap->pos>=ap_size_limit[m_ap]) \
ap->pos=0; \
- aux=undenormalise(ap->buffer[ap->pos]); \
+ aux=undenormalize(ap->buffer[ap->pos]); \
in=sample; \
sample=-in+aux; \
ap->pos++;
@@ -163,7 +163,7 @@ void Reverb::process(float *p_src, float *p_dst, int p_frames) {
}
float aux = a.buffer[a.pos];
- a.buffer[a.pos] = undenormalise(allpass_feedback * aux + p_dst[j]);
+ a.buffer[a.pos] = undenormalize(allpass_feedback * aux + p_dst[j]);
p_dst[j] = aux - allpass_feedback * a.buffer[a.pos];
a.pos++;
}