float* output1;
float srate;
- float old_yl;
- float old_y1;
- float old_yg;
+
+ float old_in_peak_db;
float makeup_gain;
float tau;
float v_thresdb;
float v_gainr;
float v_makeup;
- float v_lvl;
- float v_lv1;
float v_lvl_in;
float v_lvl_out;
#endif
}
aexp->srate = rate;
- aexp->old_yl=aexp->old_y1=aexp->old_yg=0.f;
aexp->tau = (1.0 - exp (-2.f * M_PI * 25.f / aexp->srate));
#ifdef LV2_EXTENDED
aexp->need_expose = true;
{
AExp* aexp = (AExp*)instance;
- *(aexp->gainr) = 0.0f;
+ *(aexp->gainr) = -160.0f;
*(aexp->outlevel) = -45.0f;
- aexp->old_yl=aexp->old_y1=aexp->old_yg=0.f;
+ aexp->old_in_peak_db = -160.0f;
}
static void
float srate = aexp->srate;
float width = (6.f * *(aexp->knee)) + 0.01;
- float cdb=0.f;
float attack_coeff = exp(-1000.f/(*(aexp->attack) * srate));
float release_coeff = exp(-1000.f/(*(aexp->release) * srate));
float max = 0.f;
float lgaininp = 0.f;
float Lgain = 1.f;
- float Lxg, Lxl, Lyg, Lyl, Ly1;
+ float Lxg, Lyg;
+ float current_gainr;
+ float old_gainr = *aexp->gainr;
+
int usesidechain = (*(aexp->sidechain) <= 0.f) ? 0 : 1;
uint32_t i;
float ingain;
Lyg = Lxg + (1.f-ratio)*(Lxg-thresdb-width/2.f)*(Lxg-thresdb-width/2.f)/(2.f*width);
}
- Lxl = Lxg - Lyg;
+ current_gainr = Lxg - Lyg;
+
+ if (current_gainr > old_gainr) {
+ current_gainr = release_coeff*old_gainr + (1.f-release_coeff)*current_gainr;
+ } else if (current_gainr < old_gainr) {
+ current_gainr = attack_coeff*old_gainr + (1.f-attack_coeff)*current_gainr;
+ }
+
+ current_gainr = sanitize_denormal(current_gainr);
- aexp->old_y1 = sanitize_denormal(aexp->old_y1);
- aexp->old_yl = sanitize_denormal(aexp->old_yl);
- Ly1 = fminf(Lxl, release_coeff * aexp->old_y1+(1.f-release_coeff)*Lxl);
- Lyl = attack_coeff * aexp->old_yl+(1.f-attack_coeff)*Ly1;
- Ly1 = sanitize_denormal(Ly1);
- Lyl = sanitize_denormal(Lyl);
+ Lgain = from_dB(-current_gainr);
- cdb = -Lyl;
- Lgain = from_dB(cdb);
+ old_gainr = current_gainr;
- *(aexp->gainr) = Lyl;
- if (Lyl > aexp->v_gainr) {
- aexp->v_gainr = Lyl;
+ if (current_gainr > aexp->v_gainr) {
+ aexp->v_gainr = current_gainr;
}
lgaininp = in0 * Lgain;
output[i] = lgaininp * makeup_gain;
max = (fabsf(output[i]) > max) ? fabsf(output[i]) : sanitize_denormal(max);
-
- // TODO re-use local variables on stack
- // store values back to aexp at the end of the inner-loop
- aexp->old_yl = Lyl;
- aexp->old_y1 = Ly1;
- aexp->old_yg = Lyg;
}
+ *(aexp->gainr) = current_gainr;
*(aexp->outlevel) = (max < 0.0056f) ? -45.f : to_dB(max);
aexp->makeup_gain = makeup_gain;
#ifdef LV2_EXTENDED
- const float old_v_lv1 = aexp->v_lv1;
- const float old_v_lvl = aexp->v_lvl;
+ float in_peak_db = to_dB(in_peak);
+
+ if (!isfinite_local (in_peak_db)) {
+ in_peak_db = -160.0f;
+ }
+
const float tot_rel_c = exp(-1000.f/(*(aexp->release) * srate) * n_samples);
const float tot_atk_c = exp(-1000.f/(*(aexp->attack) * srate) * n_samples);
- aexp->v_lv1 = fmaxf (in_peak, tot_rel_c*old_v_lv1 + (1.f-tot_rel_c)*in_peak);
- aexp->v_lvl = tot_atk_c*old_v_lvl + (1.f-tot_atk_c)*aexp->v_lv1;
- if (!isfinite_local (aexp->v_lvl)) {
- aexp->v_lvl = 0.f;
+ const float old_in_peak_db = aexp->old_in_peak_db;
+
+ if (in_peak_db < old_in_peak_db && in_peak_db < thresdb) {
+ in_peak_db = tot_rel_c*old_in_peak_db + (1.f-tot_rel_c)*in_peak_db;
+ } else if (in_peak_db > aexp->old_in_peak_db && in_peak_db > thresdb) {
+ in_peak_db = tot_atk_c*old_in_peak_db+ (1.f*tot_atk_c)*in_peak_db;
}
- const float v_lvl_in = (aexp->v_lvl < 0.001f) ? -60.f : to_dB(aexp->v_lvl);
+
+ aexp->old_in_peak_db = in_peak_db;
+
+ const float v_lvl_in = in_peak_db;
const float v_lvl_out = (max < 0.001f) ? -60.f : to_dB(max);
if (fabsf (aexp->v_lvl_out - v_lvl_out) >= 1 || fabsf (aexp->v_lvl_in - v_lvl_in) >= 1) {
// >= 1dB difference
float srate = aexp->srate;
float width = (6.f * *(aexp->knee)) + 0.01;
- float cdb=0.f;
float attack_coeff = exp(-1000.f/(*(aexp->attack) * srate));
float release_coeff = exp(-1000.f/(*(aexp->release) * srate));
float lgaininp = 0.f;
float rgaininp = 0.f;
float Lgain = 1.f;
- float Lxg, Lxl, Lyg, Lyl, Ly1;
+ float Lxg, Lyg;
+ float current_gainr;
+ float old_gainr = *aexp->gainr;
+
int usesidechain = (*(aexp->sidechain) <= 0.f) ? 0 : 1;
uint32_t i;
float ingain;
Lyg = Lxg + (1.f-ratio)*(Lxg-thresdb-width/2.f)*(Lxg-thresdb-width/2.f)/(2.f*width);
}
- Lxl = Lxg - Lyg;
+ current_gainr = Lxg - Lyg;
+
+ if (current_gainr > old_gainr) {
+ current_gainr = release_coeff*old_gainr + (1.f-release_coeff)*current_gainr;
+ } else if (current_gainr < old_gainr) {
+ current_gainr = attack_coeff*old_gainr + (1.f-attack_coeff)*current_gainr;
+ }
+
+ current_gainr = sanitize_denormal(current_gainr);
- aexp->old_y1 = sanitize_denormal(aexp->old_y1);
- aexp->old_yl = sanitize_denormal(aexp->old_yl);
- Ly1 = fminf(Lxl, release_coeff * aexp->old_y1+(1.f-release_coeff)*Lxl);
- Lyl = attack_coeff * aexp->old_yl+(1.f-attack_coeff)*Ly1;
- Ly1 = sanitize_denormal(Ly1);
- Lyl = sanitize_denormal(Lyl);
+ Lgain = from_dB(-current_gainr);
- cdb = -Lyl;
- Lgain = from_dB(cdb);
+ old_gainr = current_gainr;
- *(aexp->gainr) = Lyl;
- if (Lyl > aexp->v_gainr) {
- aexp->v_gainr = Lyl;
+ if (current_gainr > aexp->v_gainr) {
+ aexp->v_gainr = current_gainr;
}
lgaininp = in0 * Lgain;
output1[i] = rgaininp * makeup_gain;
max = (fmaxf(fabs(output0[i]), fabs(output1[i])) > max) ? fmaxf(fabs(output0[i]), fabs(output1[i])) : sanitize_denormal(max);
-
- // TODO re-use local variables on stack
- // store values back to aexp at the end of the inner-loop
- aexp->old_yl = Lyl;
- aexp->old_y1 = Ly1;
- aexp->old_yg = Lyg;
}
+ *(aexp->gainr) = current_gainr;
*(aexp->outlevel) = (max < 0.0056f) ? -45.f : to_dB(max);
aexp->makeup_gain = makeup_gain;
#ifdef LV2_EXTENDED
- const float old_v_lv1 = aexp->v_lv1;
- const float old_v_lvl = aexp->v_lvl;
+ float in_peak_db = to_dB(in_peak);
+
+ if (!isfinite_local (in_peak_db)) {
+ in_peak_db = -160.0f;
+ }
+
const float tot_rel_c = exp(-1000.f/(*(aexp->release) * srate) * n_samples);
const float tot_atk_c = exp(-1000.f/(*(aexp->attack) * srate) * n_samples);
- aexp->v_lv1 = fmaxf (in_peak, tot_rel_c*old_v_lv1 + (1.f-tot_rel_c)*in_peak);
- aexp->v_lvl = tot_atk_c*old_v_lvl + (1.f-tot_atk_c)*aexp->v_lv1;
- if (!isfinite_local (aexp->v_lvl)) {
- aexp->v_lvl = 0.f;
+
+ const float old_in_peak_db = aexp->old_in_peak_db;
+
+ if (in_peak_db < old_in_peak_db && in_peak_db < thresdb) {
+ in_peak_db = tot_rel_c*old_in_peak_db + (1.f-tot_rel_c)*in_peak_db;
+ } else if (in_peak_db > aexp->old_in_peak_db && in_peak_db > thresdb) {
+ in_peak_db = tot_atk_c*old_in_peak_db+ (1.f*tot_atk_c)*in_peak_db;
}
- const float v_lvl_in = (aexp->v_lvl < 0.001f) ? -60.f : to_dB(aexp->v_lvl);
+
+ aexp->old_in_peak_db = in_peak_db;
+
+ const float v_lvl_in = in_peak_db;
const float v_lvl_out = (max < 0.001f) ? -60.f : to_dB(max);
if (fabsf (aexp->v_lvl_out - v_lvl_out) >= 1 || fabsf (aexp->v_lvl_in - v_lvl_in) >= 1) {
// >= 1dB difference