oak-team/oak-editor
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fixed #398

Browse Source
This commit is contained in:
itsmattkc
2019-02-02 11:56:41 +11:00
parent 2849e552ab
commit f84a25fe95
1 changed files with 13 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
effects/internal/paneffect.cpp
+13 -11
View File
@@ -9,7 +9,7 @@
#include "ui/collapsiblewidget.h"
PanEffect::PanEffect(Clip* c, const EffectMeta *em) : Effect(c, em) {
EffectRow* pan_row = add_row(tr("Pan"));
EffectRow* pan_row = add_row(tr("Pan"));
pan_val = pan_row->add_field(EFFECT_FIELD_DOUBLE, "pan");
pan_val->set_double_minimum_value(-100);
pan_val->set_double_maximum_value(100);
@@ -21,21 +21,23 @@ PanEffect::PanEffect(Clip* c, const EffectMeta *em) : Effect(c, em) {
void PanEffect::process_audio(double timecode_start, double timecode_end, quint8* samples, int nb_bytes, int) {
double interval = (timecode_end - timecode_start)/nb_bytes;
for (int i=0;i<nb_bytes;i+=4) {
double pval = log_volume(pan_val->get_double_value(timecode_start+(interval*i), true)*0.01);
qint16 left_sample = (qint16) (((samples[i+1] & 0xFF) << 8) | (samples[i] & 0xFF));
qint16 right_sample = (qint16) (((samples[i+3] & 0xFF) << 8) | (samples[i+2] & 0xFF));
double pan_field_val = pan_val->get_double_value(timecode_start+(interval*i), true);
double pval = log_volume(qAbs(pan_field_val)*0.01);
if (pval < 0) {
qint16 left_sample = qint16(((samples[i+1] & 0xFF) << 8) | (samples[i] & 0xFF));
qint16 right_sample = qint16(((samples[i+3] & 0xFF) << 8) | (samples[i+2] & 0xFF));
if (pan_field_val < 0) {
// affect right channel
right_sample *= (1-std::abs(pval));
right_sample *= (1.0-pval);
} else {
// affect left channel
left_sample *= (1-pval);
left_sample *= (1.0-pval);
}
samples[i+3] = (quint8) (right_sample >> 8);
samples[i+2] = (quint8) right_sample;
samples[i+1] = (quint8) (left_sample >> 8);
samples[i] = (quint8) left_sample;
samples[i+3] = quint8(right_sample >> 8);
samples[i+2] = quint8(right_sample);
samples[i+1] = quint8(left_sample >> 8);
samples[i] = quint8(left_sample);
}
}