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filter-graph: move loop out of the NULL check

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This commit is contained in:
Wim Taymans 2025-07-17 12:01:14 +02:00
parent eb3d14053d
commit 4b37f3db3d
1 changed files with 40 additions and 39 deletions
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79
spa/plugins/filter-graph/plugin_builtin.c
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@ -2821,48 +2821,49 @@ static void zeroramp_run(void * Instance, unsigned long SampleCount)
if (out == NULL)
return;
if (in != NULL) {
for (n = 0; n < SampleCount; n++) {
if (impl->mode == 0) {
/* normal mode, finding gaps */
out[n] = in[n];
if (in[n] == 0.0f) {
if (++impl->count == gap) {
/* we found gap zeroes, fade out last
* sample and go into zero mode */
for (c = 1, i = n; c < duration && i > 0; i--, c++)
out[i-1] = impl->last *
(0.5f + 0.5f * cosf(M_PIf + M_PIf * c / duration));
impl->mode = 1;
}
} else {
/* keep last sample to fade out when needed */
impl->count = 0;
impl->last = in[n];
}
}
if (impl->mode == 1) {
/* zero mode */
if (in[n] != 0.0f) {
/* gap ended, move to fade-in mode */
impl->mode = 2;
impl->count = 0;
} else {
out[n] = 0.0f;
}
}
if (impl->mode == 2) {
/* fade-in mode */
out[n] = in[n] * (0.5f + 0.5f * cosf(M_PIf + (M_PIf * ++impl->count / duration)));
if (impl->count == duration) {
/* fade in complete, back to normal mode */
impl->count = 0;
impl->mode = 0;
if (in == NULL) {
memset(out, 0, SampleCount * sizeof(float));
return;
}
for (n = 0; n < SampleCount; n++) {
if (impl->mode == 0) {
/* normal mode, finding gaps */
out[n] = in[n];
if (in[n] == 0.0f) {
if (++impl->count == gap) {
/* we found gap zeroes, fade out last
* sample and go into zero mode */
for (c = 1, i = n; c < duration && i > 0; i--, c++)
out[i-1] = impl->last *
(0.5f + 0.5f * cosf(M_PIf + M_PIf * c / duration));
impl->mode = 1;
}
} else {
/* keep last sample to fade out when needed */
impl->count = 0;
impl->last = in[n];
}
}
if (impl->mode == 1) {
/* zero mode */
if (in[n] != 0.0f) {
/* gap ended, move to fade-in mode */
impl->mode = 2;
impl->count = 0;
} else {
out[n] = 0.0f;
}
}
if (impl->mode == 2) {
/* fade-in mode */
out[n] = in[n] * (0.5f + 0.5f * cosf(M_PIf + (M_PIf * ++impl->count / duration)));
if (impl->count == duration) {
/* fade in complete, back to normal mode */
impl->count = 0;
impl->mode = 0;
}
}
} else {
memset(out, 0, SampleCount * sizeof(float));
}
}