started frontend for effect keyframes

2018-08-18 20:35:19 +10:00
parent 2dde8bde77
commit 2b3d9636db
44 changed files with 1541 additions and 1203 deletions
@@ -0,0 +1,49 @@
+#include "volumeeffect.h"
+
+#include <QGridLayout>
+#include <QLabel>
+#include <QtMath>
+#include <QDebug>
+#include <stdint.h>
+
+#include "ui/labelslider.h"
+#include "ui/collapsiblewidget.h"
+
+VolumeEffect::VolumeEffect(Clip* c) : Effect(c, EFFECT_TYPE_AUDIO, AUDIO_VOLUME_EFFECT) {
+	EffectRow* volume_row = add_row("Volume:");
+	volume_val = volume_row->add_field(EFFECT_FIELD_DOUBLE);
+	volume_val->set_double_minimum_value(0);
+	volume_val->set_double_maximum_value(400);
+
+	// set defaults
+	volume_val->set_double_default_value(100);
+
+	connect(volume_val, SIGNAL(changed()), this, SLOT(field_changed()));
+}
+
+void VolumeEffect::refresh() {}
+
+Effect* VolumeEffect::copy(Clip* c) {
+	VolumeEffect* v = new VolumeEffect(c);
+	v->volume_val->set_double_value(volume_val->get_double_value());
+	return v;
+}
+
+void VolumeEffect::process_audio(quint8* samples, int nb_bytes) {
+	double vol_val = volume_val->get_double_value();
+	if (vol_val != 100) {
+        for (int i=0;i<nb_bytes;i+=2) {
+            qint32 samp = (qint16) (((samples[i+1] & 0xFF) << 8) | (samples[i] & 0xFF));
+			double val = qPow(vol_val*0.01, 3);
+            samp *= val;
+            if (samp > INT16_MAX) {
+                samp = INT16_MAX;
+            } else if (samp < INT16_MIN) {
+                samp = INT16_MIN;
+            }
+
+            samples[i+1] = (quint8) (samp >> 8);
+            samples[i] = (quint8) samp;
+        }
+    }
+}