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Try to use existing FTT data

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This commit is contained in:
Will Tatam
2024-03-08 00:35:22 +00:00
parent 995521bacb
commit 95e94a99b9
1 changed files with 11 additions and 2 deletions
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13
usermods/usermod_v2_auto_playlist/usermod_v2_auto_playlist.h
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@@ -60,9 +60,9 @@ class AutoPlaylistUsermod : public Usermod {
int *extra = (int*) um_data->u_data[11]; int *extra = (int*) um_data->u_data[11];
int zcr = extra[0]; unsigned int zcr = extra[0];
int energy = extra[1]; int energy = extra[1];
int lfc = extra[2]; int lfc = getFFTFromRange(um_data, 0 , 3);
// WLED-MM/TroyHacks: Calculate the long- and short-running averages // WLED-MM/TroyHacks: Calculate the long- and short-running averages
// and the squared_distance for the vector. // and the squared_distance for the vector.
@@ -103,6 +103,15 @@ class AutoPlaylistUsermod : public Usermod {
lastchange = millis(); lastchange = millis();
} }
} }
uint8_t getFFTFromRange(um_data_t *data, uint8_t from, uint8_t to) {
uint8_t *fftResult = (uint8_t*) data->u_data[2];
uint8_t result = 0;
for (int i = from; i <= to; i++) {
result += fftResult[i] * fftResult[i];
}
return sqrt(result / (to - from + 1));
}
/* /*
* Da loop. * Da loop.
*/ */