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How to turn on and off A2DP sink without loosing memory #8204
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dharmikP17
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I am using ESP32 (2.0.5) with Arduino IDE (2.0.2). All settings are default.
My requirement is to turn off the A2DP and start wifi then switch back to A2DP. So I have basic code that just turn on and off the A2DP sink and there is memory leak in heap everytime it goes through this cycle.
#include "BluetoothA2DPSink.h"
#include "BluetoothSerial.h"
BluetoothA2DPSink a2dp_sink;
BluetoothSerial SerialBT;
bool flag_init_serialbt = true;
void connection_state_changed(esp_a2d_connection_state_t state, void *ptr) {
Serial.println(a2dp_sink.to_str(state));
}
void audio_state_changed(esp_a2d_audio_state_t state, void *ptr) {
Serial.println(a2dp_sink.to_str(state));
}
void setup() {
Serial.begin(115200);
pinMode(2, OUTPUT);
// a2dp_sink.set_on_connection_state_changed(connection_state_changed);
// a2dp_sink.set_on_audio_state_changed(audio_state_changed);
a2dp_sink.start("ESP_A2DP_test", false);
SerialBT.begin("ESP_A2DP_test");
}
void loop() {
a2dp_sink.end();
Serial.print("free heap : ");
Serial.println(ESP.getFreeHeap());
delay(3000);
a2dp_sink.start("ESP_A2DP_test", false);
delay(3000);
}
There is an option to release memory in a2dp_sink.end(bool release_memory) method but then it will not let me turn on again saying re-start does not work with end(true) .
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