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audio keyframing implemented

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This commit is contained in:
itsmattkc
2018-08-22 20:12:18 +10:00
parent 71b2bcf16f
commit 1ead2a38a8
21 changed files with 193 additions and 153 deletions
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effects/audio/paneffect.cpp
+19 -20
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@@ -20,26 +20,25 @@ PanEffect::PanEffect(Clip* c) : Effect(c, EFFECT_TYPE_AUDIO, AUDIO_PAN_EFFECT) {
connect(pan_val, SIGNAL(changed()), this, SLOT(field_changed()));
}
void PanEffect::process_audio(quint8 *samples, int nb_bytes) {
double pval = pan_val->get_double_value(-1);
if (pval != 0) {
for (int i=0;i<nb_bytes;i+=4) {
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));
void PanEffect::process_audio(double timecode_start, double timecode_end, quint8* samples, int nb_bytes, int channel_count) {
double interval = (timecode_end - timecode_start)/nb_bytes;
for (int i=0;i<nb_bytes;i+=4) {
double pval = pan_val->get_double_value(timecode_start+(interval*i));
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 val = qPow(pval*0.01, 3);
if (val < 0) {
// affect right channel
right_sample *= (1-std::abs(val));
} else {
// affect left channel
left_sample *= (1-val);
}
double val = qPow(pval*0.01, 3);
if (val < 0) {
// affect right channel
right_sample *= (1-std::abs(val));
} else {
// affect left channel
left_sample *= (1-val);
}
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;
}
}