Merge pull request #204 from troyhacks/Strip_Level_Color_Adjust

Strip level color adjust

Author: troyhacks

usermods/audioreactive/audio_reactive.h

@@ -348,7 +348,7 @@ static float   lastFftCalc[NUM_GEQ_CHANNELS] = {0.0f};                // backup
 
 #if !defined(CONFIG_IDF_TARGET_ESP32C3)
 // audio source parameters and constant
-constexpr SRate_t SAMPLE_RATE = 22050;        // Base sample rate in Hz - 22Khz is a standard rate. Physical sample time -> 23ms
+constexpr SRate_t SAMPLE_RATE = 96000;        // Base sample rate in Hz - 22Khz is a standard rate. Physical sample time -> 23ms
 //constexpr SRate_t SAMPLE_RATE = 16000;        // 16kHz - use if FFTtask takes more than 20ms. Physical sample time -> 32ms
 //constexpr SRate_t SAMPLE_RATE = 20480;        // Base sample rate in Hz - 20Khz is experimental.    Physical sample time -> 25ms
 //constexpr SRate_t SAMPLE_RATE = 10240;        // Base sample rate in Hz - previous default.         Physical sample time -> 50ms

usermods/audioreactive/audio_source.h

@@ -186,6 +186,7 @@ class AudioSource {
     bool _i2sMaster;                // when false, ESP32 will be in I2S SLAVE mode (for devices that only operate in MASTER mode). Only works in newer IDF >= 4.4.x
     float _sampleScale;             // pre-scaling factor for I2S samples
     I2S_datatype newSampleBuffer[I2S_SAMPLES_MAX+4] = { 0 }; // global buffer for i2s_read
+    I2S_datatype newSampleBuffer4x[(I2S_SAMPLES_MAX*4)+4] = { 0 }; // global buffer for i2s_read
 };
 
 /* Basic I2S microphone source
@@ -194,12 +195,12 @@ class AudioSource {
 */
 class I2SSource : public AudioSource {
   public:
-    I2SSource(SRate_t sampleRate, int blockSize, float sampleScale = 1.0f, bool i2sMaster=true) :
+    I2SSource(SRate_t sampleRate, int blockSize, float sampleScale = 1.0f, bool i2sMaster=false) :
       AudioSource(sampleRate, blockSize, sampleScale, i2sMaster) {
       _config = {
         .mode = i2sMaster ? i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX) : i2s_mode_t(I2S_MODE_SLAVE | I2S_MODE_RX),
-        .sample_rate = _sampleRate,
-        .bits_per_sample = I2S_SAMPLE_RESOLUTION,  // slave mode: may help to set this to 96000, as the other side (master) controls sample rates
+        .sample_rate = _sampleRate, // slave mode: may help to set this to 96000, as the other side (master) controls sample rates
+        .bits_per_sample = I2S_SAMPLE_RESOLUTION,  
         .channel_format = I2S_MIC_CHANNEL,
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 2, 0)
         .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_STAND_I2S),
@@ -394,6 +395,8 @@ class I2SSource : public AudioSource {
 
         memset(buffer, 0, sizeof(float) * num_samples);  // clear output buffer
         I2S_datatype *newSamples = newSampleBuffer; // use global input buffer
+        I2S_datatype *newSamples_buff = newSampleBuffer4x; // use oversampling global input buffer
+
         if (num_samples > I2S_SAMPLES_MAX) num_samples = I2S_SAMPLES_MAX; // protect the buffer from overflow
 
         err = i2s_read(AR_I2S_PORT, (void *)newSamples, num_samples * sizeof(I2S_datatype), &bytes_read, portMAX_DELAY);
@@ -408,6 +411,15 @@ class I2SSource : public AudioSource {
           return;
         }
 
+        if (_sampleRate == 96000) {
+          int current = 0;
+          for (int i = 0; i < 2048; i += 4) {
+            newSamples[current] = newSamples_buff[i];
+            current++;
+          }
+          num_samples /= 4; // back to 512 samples
+        }
+
         // Store samples in sample buffer and update DC offset
         for (int i = 0; i < num_samples; i++) {
 

wled00/bus_manager.cpp

@@ -102,7 +102,7 @@ uint8_t IRAM_ATTR ColorOrderMap::getPixelColorOrder(uint16_t pix, uint8_t defaul
   uint8_t swapW = defaultColorOrder >> 4;
   for (uint8_t i = 0; i < _count; i++) {
     if (pix >= _mappings[i].start && pix < (_mappings[i].start + _mappings[i].len)) {
-      return _mappings[i].colorOrder | (swapW << 4);
+      return _mappings[i].colorOrder | (swapW << 4); // WLED-MM/TroyHacks: Disabling this disables color order mapping.
     }
   }
   return defaultColorOrder;
@@ -202,6 +202,10 @@ void IRAM_ATTR BusDigital::setPixelColor(uint16_t pix, uint32_t c) {
       case 2: c = RGBW32(R(cOld), G(cOld), W(c)   , 0); break;
     }
   }
+  if (_colorOrder != co) {
+    c = RGBW32(dim8_lin(R(c)), dim8_lin(G(c)), dim8_lin(B(c)), 0); // WLED-MM/TroyHacks - remap pixels not in the default color order
+    co = _colorOrder; // keep the original color order, as this is a hack. :)
+  }
   PolyBus::setPixelColor(_busPtr, _iType, pix, c, co);
 }