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Merge "BluetoothMidi: request higher priority, for lower latency" into oc-dev

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TreeHugger Robot
2017-04-14 23:49:13 +00:00
committed by Android (Google) Code Review
parent 5f085792f6 1f99a3277b
commit e49ad6c70a
1 changed files with 19 additions and 19 deletions
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38
media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java
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@@ -100,8 +100,8 @@ public final class BluetoothMidiDevice {
int newState) {
String intentAction;
if (newState == BluetoothProfile.STATE_CONNECTED) {
Log.i(TAG, "Connected to GATT server.");
Log.i(TAG, "Attempting to start service discovery:" +
Log.d(TAG, "Connected to GATT server.");
Log.d(TAG, "Attempting to start service discovery:" +
mBluetoothGatt.discoverServices());
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
Log.i(TAG, "Disconnected from GATT server.");
@@ -112,24 +112,24 @@ public final class BluetoothMidiDevice {
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
List<BluetoothGattService> services = mBluetoothGatt.getServices();
for (BluetoothGattService service : services) {
if (MIDI_SERVICE.equals(service.getUuid())) {
Log.d(TAG, "found MIDI_SERVICE");
List<BluetoothGattCharacteristic> characteristics
= service.getCharacteristics();
for (BluetoothGattCharacteristic characteristic : characteristics) {
if (MIDI_CHARACTERISTIC.equals(characteristic.getUuid())) {
Log.d(TAG, "found MIDI_CHARACTERISTIC");
mCharacteristic = characteristic;
BluetoothGattService service = gatt.getService(MIDI_SERVICE);
if (service != null) {
Log.d(TAG, "found MIDI_SERVICE");
BluetoothGattCharacteristic characteristic
= service.getCharacteristic(MIDI_CHARACTERISTIC);
if (characteristic != null) {
Log.d(TAG, "found MIDI_CHARACTERISTIC");
mCharacteristic = characteristic;
// Specification says to read the characteristic first and then
// switch to receiving notifications
mBluetoothGatt.readCharacteristic(characteristic);
break;
}
}
break;
// Request a lower Connection Interval for better latency.
boolean result = gatt.requestConnectionPriority(
BluetoothGatt.CONNECTION_PRIORITY_HIGH);
Log.d(TAG, "requestConnectionPriority(CONNECTION_PRIORITY_HIGH):"
+ result);
// Specification says to read the characteristic first and then
// switch to receiving notifications
mBluetoothGatt.readCharacteristic(characteristic);
}
}
} else {