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script-astra/Android/Sdk/sources/android-35/android/bluetooth/BluetoothLeBroadcast.java

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/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.bluetooth;
import android.annotation.CallbackExecutor;
import android.annotation.IntDef;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.RequiresPermission;
import android.annotation.SuppressLint;
import android.annotation.SystemApi;
import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
import android.content.AttributionSource;
import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.CloseGuard;
import android.util.Log;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.Executor;
/**
* This class provides the public APIs to control the BAP Broadcast Source profile.
*
* <p>BluetoothLeBroadcast is a proxy object for controlling the Bluetooth LE Broadcast Source
* Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get the BluetoothLeBroadcast
* proxy object.
*
* @hide
*/
@SystemApi
public final class BluetoothLeBroadcast implements AutoCloseable, BluetoothProfile {
private static final String TAG = "BluetoothLeBroadcast";
private static final boolean DBG = true;
private static final boolean VDBG = false;
private CloseGuard mCloseGuard;
private final BluetoothAdapter mAdapter;
private final AttributionSource mAttributionSource;
private IBluetoothLeAudio mService;
private final Map<Callback, Executor> mCallbackExecutorMap = new HashMap<>();
@SuppressLint("AndroidFrameworkBluetoothPermission")
private final IBluetoothLeBroadcastCallback mCallback =
new IBluetoothLeBroadcastCallback.Stub() {
@Override
public void onBroadcastStarted(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onBroadcastStarted(reason, broadcastId));
}
}
@Override
public void onBroadcastStartFailed(int reason) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onBroadcastStartFailed(reason));
}
}
@Override
public void onBroadcastStopped(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onBroadcastStopped(reason, broadcastId));
}
}
@Override
public void onBroadcastStopFailed(int reason) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onBroadcastStopFailed(reason));
}
}
@Override
public void onPlaybackStarted(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onPlaybackStarted(reason, broadcastId));
}
}
@Override
public void onPlaybackStopped(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onPlaybackStopped(reason, broadcastId));
}
}
@Override
public void onBroadcastUpdated(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(() -> callback.onBroadcastUpdated(reason, broadcastId));
}
}
@Override
public void onBroadcastUpdateFailed(int reason, int broadcastId) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(
() -> callback.onBroadcastUpdateFailed(reason, broadcastId));
}
}
@Override
public void onBroadcastMetadataChanged(
int broadcastId, BluetoothLeBroadcastMetadata metadata) {
for (Map.Entry<BluetoothLeBroadcast.Callback, Executor> callbackExecutorEntry :
mCallbackExecutorMap.entrySet()) {
BluetoothLeBroadcast.Callback callback = callbackExecutorEntry.getKey();
Executor executor = callbackExecutorEntry.getValue();
executor.execute(
() -> callback.onBroadcastMetadataChanged(broadcastId, metadata));
}
}
};
/**
* Interface for receiving events related to Broadcast Source
*
* @hide
*/
@SystemApi
public interface Callback {
/** @hide */
@Retention(RetentionPolicy.SOURCE)
@IntDef(
value = {
BluetoothStatusCodes.ERROR_UNKNOWN,
BluetoothStatusCodes.REASON_LOCAL_APP_REQUEST,
BluetoothStatusCodes.REASON_LOCAL_STACK_REQUEST,
BluetoothStatusCodes.REASON_SYSTEM_POLICY,
BluetoothStatusCodes.ERROR_HARDWARE_GENERIC,
BluetoothStatusCodes.ERROR_BAD_PARAMETERS,
BluetoothStatusCodes.ERROR_LOCAL_NOT_ENOUGH_RESOURCES,
BluetoothStatusCodes.ERROR_LE_BROADCAST_INVALID_CODE,
BluetoothStatusCodes.ERROR_LE_BROADCAST_INVALID_BROADCAST_ID,
BluetoothStatusCodes.ERROR_LE_CONTENT_METADATA_INVALID_PROGRAM_INFO,
BluetoothStatusCodes.ERROR_LE_CONTENT_METADATA_INVALID_LANGUAGE,
BluetoothStatusCodes.ERROR_LE_CONTENT_METADATA_INVALID_OTHER,
})
@interface Reason {}
/**
* Callback invoked when broadcast is started, but audio may not be playing.
*
* <p>Caller should wait for {@link #onBroadcastMetadataChanged(int,
* BluetoothLeBroadcastMetadata)} for the updated metadata
*
* @param reason for broadcast start
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onBroadcastStarted(@Reason int reason, int broadcastId);
/**
* Callback invoked when broadcast failed to start
*
* @param reason for broadcast start failure
* @hide
*/
@SystemApi
void onBroadcastStartFailed(@Reason int reason);
/**
* Callback invoked when broadcast is stopped
*
* @param reason for broadcast stop
* @hide
*/
@SystemApi
void onBroadcastStopped(@Reason int reason, int broadcastId);
/**
* Callback invoked when broadcast failed to stop
*
* @param reason for broadcast stop failure
* @hide
*/
@SystemApi
void onBroadcastStopFailed(@Reason int reason);
/**
* Callback invoked when broadcast audio is playing
*
* @param reason for playback start
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onPlaybackStarted(@Reason int reason, int broadcastId);
/**
* Callback invoked when broadcast audio is not playing
*
* @param reason for playback stop
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onPlaybackStopped(@Reason int reason, int broadcastId);
/**
* Callback invoked when encryption is enabled
*
* @param reason for encryption enable
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onBroadcastUpdated(@Reason int reason, int broadcastId);
/**
* Callback invoked when Broadcast Source failed to update
*
* @param reason for update failure
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onBroadcastUpdateFailed(int reason, int broadcastId);
/**
* Callback invoked when Broadcast Source metadata is updated
*
* @param metadata updated Broadcast Source metadata
* @param broadcastId as defined by the Basic Audio Profile
* @hide
*/
@SystemApi
void onBroadcastMetadataChanged(
int broadcastId, @NonNull BluetoothLeBroadcastMetadata metadata);
}
/**
* Create a BluetoothLeBroadcast proxy object for interacting with the local LE Audio Broadcast
* Source service.
*
* @param context for to operate this API class
* @hide
*/
/*package*/ BluetoothLeBroadcast(Context context, BluetoothAdapter adapter) {
mAdapter = adapter;
mAttributionSource = mAdapter.getAttributionSource();
mService = null;
mCloseGuard = new CloseGuard();
mCloseGuard.open("close");
}
/** @hide */
@SuppressWarnings("Finalize") // TODO(b/314811467)
protected void finalize() {
if (mCloseGuard != null) {
mCloseGuard.warnIfOpen();
}
close();
}
/**
* Not supported since LE Audio Broadcasts do not establish a connection.
*
* @hide
*/
@Override
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public int getConnectionState(@NonNull BluetoothDevice device) {
throw new UnsupportedOperationException("LE Audio Broadcasts are not connection-oriented.");
}
/**
* Not supported since LE Audio Broadcasts do not establish a connection.
*
* @hide
*/
@Override
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
@NonNull
public List<BluetoothDevice> getDevicesMatchingConnectionStates(@NonNull int[] states) {
throw new UnsupportedOperationException("LE Audio Broadcasts are not connection-oriented.");
}
/**
* Not supported since LE Audio Broadcasts do not establish a connection.
*
* @hide
*/
@Override
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public @NonNull List<BluetoothDevice> getConnectedDevices() {
throw new UnsupportedOperationException("LE Audio Broadcasts are not connection-oriented.");
}
/**
* Register a {@link Callback} that will be invoked during the operation of this profile.
*
* <p>Repeated registration of the same <var>callback</var> object after the first call to this
* method will result with IllegalArgumentException being thrown, even when the
* <var>executor</var> is different. API caller would have to call {@link
* #unregisterCallback(Callback)} with the same callback object before registering it again.
*
* @param executor an {@link Executor} to execute given callback
* @param callback user implementation of the {@link Callback}
* @throws NullPointerException if a null executor, or callback is given, or
* IllegalArgumentException if the same <var>callback<var> is already registered.
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void registerCallback(
@NonNull @CallbackExecutor Executor executor, @NonNull Callback callback) {
Objects.requireNonNull(executor, "executor cannot be null");
Objects.requireNonNull(callback, "callback cannot be null");
if (DBG) log("registerCallback");
synchronized (mCallbackExecutorMap) {
// If the callback map is empty, we register the service-to-app callback
if (mCallbackExecutorMap.isEmpty()) {
if (!mAdapter.isEnabled()) {
/* If Bluetooth is off, just store callback and it will be registered
* when Bluetooth is on
*/
mCallbackExecutorMap.put(callback, executor);
return;
}
try {
final IBluetoothLeAudio service = getService();
if (service != null) {
service.registerLeBroadcastCallback(mCallback, mAttributionSource);
}
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
// Adds the passed in callback to our map of callbacks to executors
if (mCallbackExecutorMap.containsKey(callback)) {
throw new IllegalArgumentException("This callback has already been registered");
}
mCallbackExecutorMap.put(callback, executor);
}
}
/**
* Unregister the specified {@link Callback}
*
* <p>The same {@link Callback} object used when calling {@link #registerCallback(Executor,
* Callback)} must be used.
*
* <p>Callbacks are automatically unregistered when application process goes away
*
* @param callback user implementation of the {@link Callback}
* @throws NullPointerException when callback is null or IllegalArgumentException when no
* callback is registered
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void unregisterCallback(@NonNull Callback callback) {
Objects.requireNonNull(callback, "callback cannot be null");
if (DBG) log("unregisterCallback");
synchronized (mCallbackExecutorMap) {
if (mCallbackExecutorMap.remove(callback) == null) {
throw new IllegalArgumentException("This callback has not been registered");
}
}
// If the callback map is empty, we unregister the service-to-app callback
if (mCallbackExecutorMap.isEmpty()) {
try {
final IBluetoothLeAudio service = getService();
if (service != null) {
service.unregisterLeBroadcastCallback(mCallback, mAttributionSource);
}
} catch (IllegalStateException e) {
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Start broadcasting to nearby devices using <var>broadcastCode</var> and
* <var>contentMetadata</var>
*
* <p>Encryption will be enabled when <var>broadcastCode</var> is not null.
*
* <p>As defined in Volume 3, Part C, Section 3.2.6 of Bluetooth Core Specification, Version
* 5.3, Broadcast Code is used to encrypt a broadcast audio stream.
*
* <p>It must be a UTF-8 string that has at least 4 octets and should not exceed 16 octets.
*
* <p>If the provided <var>broadcastCode</var> is non-null and does not meet the above
* requirements, encryption will fail to enable with reason code {@link
* BluetoothStatusCodes#ERROR_LE_BROADCAST_INVALID_CODE}
*
* <p>Caller can set content metadata such as program information string in
* <var>contentMetadata</var>
*
* <p>On success, {@link Callback#onBroadcastStarted(int, int)} will be invoked with {@link
* BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST} reason code. On failure, {@link
* Callback#onBroadcastStartFailed(int)} will be invoked with reason code.
*
* <p>In particular, when the number of Broadcast Sources reaches {@link
* #getMaximumNumberOfBroadcast()}, this method will fail with {@link
* BluetoothStatusCodes#ERROR_LOCAL_NOT_ENOUGH_RESOURCES}
*
* <p>After broadcast is started, {@link Callback#onBroadcastMetadataChanged(int,
* BluetoothLeBroadcastMetadata)} will be invoked to expose the latest Broadcast Group metadata
* that can be shared out of band to set up Broadcast Sink without scanning.
*
* <p>Alternatively, one can also get the latest Broadcast Source meta via {@link
* #getAllBroadcastMetadata()}
*
* @param contentMetadata metadata for the default Broadcast subgroup
* @param broadcastCode Encryption will be enabled when <var>broadcastCode</var> is not null
* @throws IllegalStateException if callback was not registered
* @throws NullPointerException if <var>contentMetadata</var> is null
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void startBroadcast(
@NonNull BluetoothLeAudioContentMetadata contentMetadata,
@Nullable byte[] broadcastCode) {
Objects.requireNonNull(contentMetadata, "contentMetadata cannot be null");
if (mCallbackExecutorMap.isEmpty()) {
throw new IllegalStateException("No callback was ever registered");
}
if (DBG) log("startBroadcasting");
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
service.startBroadcast(
buildBroadcastSettingsFromMetadata(contentMetadata, broadcastCode),
mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Start broadcasting to nearby devices using {@link BluetoothLeBroadcastSettings}.
*
* @param broadcastSettings broadcast settings for this broadcast group
* @throws IllegalStateException if callback was not registered
* @throws NullPointerException if <var>broadcastSettings</var> is null
* @hide
*/
@SystemApi
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void startBroadcast(@NonNull BluetoothLeBroadcastSettings broadcastSettings) {
Objects.requireNonNull(broadcastSettings, "broadcastSettings cannot be null");
if (mCallbackExecutorMap.isEmpty()) {
throw new IllegalStateException("No callback was ever registered");
}
if (DBG) log("startBroadcasting");
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
service.startBroadcast(broadcastSettings, mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Update the broadcast with <var>broadcastId</var> with new <var>contentMetadata</var>
*
* <p>On success, {@link Callback#onBroadcastUpdated(int, int)} will be invoked with reason code
* {@link BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}. On failure, {@link
* Callback#onBroadcastUpdateFailed(int, int)} will be invoked with reason code
*
* @param broadcastId broadcastId as defined by the Basic Audio Profile
* @param contentMetadata updated metadata for the default Broadcast subgroup
* @throws IllegalStateException if callback was not registered
* @throws NullPointerException if <var>contentMetadata</var> is null
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void updateBroadcast(
int broadcastId, @NonNull BluetoothLeAudioContentMetadata contentMetadata) {
Objects.requireNonNull(contentMetadata, "contentMetadata cannot be null");
if (mCallbackExecutorMap.isEmpty()) {
throw new IllegalStateException("No callback was ever registered");
}
if (DBG) log("updateBroadcast");
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
service.updateBroadcast(
broadcastId,
buildBroadcastSettingsFromMetadata(contentMetadata, null),
mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Update the broadcast with <var>broadcastId</var> with <var>BluetoothLeBroadcastSettings</var>
*
* <p>On success, {@link Callback#onBroadcastUpdated(int, int)} will be invoked with reason code
* {@link BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}. On failure, {@link
* Callback#onBroadcastUpdateFailed(int, int)} will be invoked with reason code
*
* @param broadcastId broadcastId as defined by the Basic Audio Profile
* @param broadcastSettings broadcast settings for this broadcast group
* @throws IllegalStateException if callback was not registered
* @throws NullPointerException if <var>broadcastSettings</var> is null
* @hide
*/
@SystemApi
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void updateBroadcast(
int broadcastId, @NonNull BluetoothLeBroadcastSettings broadcastSettings) {
Objects.requireNonNull(broadcastSettings, "broadcastSettings cannot be null");
if (mCallbackExecutorMap.isEmpty()) {
throw new IllegalStateException("No callback was ever registered");
}
if (DBG) log("updateBroadcast");
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
service.updateBroadcast(broadcastId, broadcastSettings, mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Stop broadcasting.
*
* <p>On success, {@link Callback#onBroadcastStopped(int, int)} will be invoked with reason code
* {@link BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST} and the <var>broadcastId</var> On
* failure, {@link Callback#onBroadcastStopFailed(int)} will be invoked with reason code
*
* @param broadcastId as defined by the Basic Audio Profile
* @throws IllegalStateException if callback was not registered
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void stopBroadcast(int broadcastId) {
if (mCallbackExecutorMap.isEmpty()) {
throw new IllegalStateException("No callback was ever registered");
}
if (DBG) log("disableBroadcastMode");
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
service.stopBroadcast(broadcastId, mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
}
/**
* Return true if audio is being broadcasted on the Broadcast Source as identified by the
* <var>broadcastId</var>
*
* @param broadcastId as defined in the Basic Audio Profile
* @return true if audio is being broadcasted
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public boolean isPlaying(int broadcastId) {
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
return service.isPlaying(broadcastId, mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
return false;
}
/**
* Get {@link BluetoothLeBroadcastMetadata} for all Broadcast Groups currently running on this
* device
*
* @return list of {@link BluetoothLeBroadcastMetadata}
* @hide
*/
@SystemApi
@RequiresBluetoothConnectPermission
@RequiresPermission(
allOf = {
android.Manifest.permission.BLUETOOTH_CONNECT,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public @NonNull List<BluetoothLeBroadcastMetadata> getAllBroadcastMetadata() {
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
return service.getAllBroadcastMetadata(mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
return Collections.emptyList();
}
/**
* Get the maximum number of Broadcast Isochronous Group supported on this device
*
* @return maximum number of Broadcast Isochronous Group supported on this device
* @hide
*/
@SystemApi
@RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED)
public int getMaximumNumberOfBroadcasts() {
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
return service.getMaximumNumberOfBroadcasts(mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
return 1;
}
/**
* Get the maximum number of streams per broadcast Single stream means single Audio PCM stream
*
* @return maximum number of broadcast streams per broadcast group
* @hide
*/
@SystemApi
@RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED)
public int getMaximumStreamsPerBroadcast() {
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
return service.getMaximumStreamsPerBroadcast(mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
return 1;
}
/**
* Get the maximum number of subgroups per broadcast Single stream means single Audio PCM
* stream, one stream could support single or multiple subgroups based on language and audio
* configuration. e.g. Stream 1 -> 2 subgroups with English and Spanish, Stream 2 -> 1 subgroups
* with English, Stream 3 -> 2 subgroups with hearing Aids Standard and High Quality
*
* @return maximum number of broadcast subgroups per broadcast group
* @hide
*/
@SystemApi
@RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED)
public int getMaximumSubgroupsPerBroadcast() {
final IBluetoothLeAudio service = getService();
if (service == null) {
Log.w(TAG, "Proxy not attached to service");
if (DBG) log(Log.getStackTraceString(new Throwable()));
} else if (isEnabled()) {
try {
return service.getMaximumSubgroupsPerBroadcast(mAttributionSource);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
return 1;
}
/**
* {@inheritDoc}
*
* @hide
*/
@Override
public void close() {
if (VDBG) log("close()");
mAdapter.closeProfileProxy(this);
}
private BluetoothLeBroadcastSettings buildBroadcastSettingsFromMetadata(
BluetoothLeAudioContentMetadata contentMetadata, @Nullable byte[] broadcastCode) {
BluetoothLeBroadcastSubgroupSettings.Builder subgroupBuilder =
new BluetoothLeBroadcastSubgroupSettings.Builder()
.setContentMetadata(contentMetadata);
BluetoothLeBroadcastSettings.Builder builder =
new BluetoothLeBroadcastSettings.Builder()
.setPublicBroadcast(false)
.setBroadcastCode(broadcastCode);
// builder expect at least one subgroup setting
builder.addSubgroupSettings(subgroupBuilder.build());
return builder.build();
}
private boolean isEnabled() {
if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true;
return false;
}
/** @hide */
@Override
public void onServiceConnected(IBinder service) {
mService = IBluetoothLeAudio.Stub.asInterface(service);
// re-register the service-to-app callback
synchronized (mCallbackExecutorMap) {
if (mCallbackExecutorMap.isEmpty()) {
return;
}
try {
if (service != null) {
mService.registerLeBroadcastCallback(mCallback, mAttributionSource);
}
} catch (RemoteException e) {
Log.e(
TAG,
"onServiceConnected: Failed to register " + "Le Broadcaster callback",
e);
}
}
}
/** @hide */
@Override
public void onServiceDisconnected() {
mService = null;
}
private IBluetoothLeAudio getService() {
return mService;
}
/** @hide */
@Override
public BluetoothAdapter getAdapter() {
return mAdapter;
}
private static void log(String msg) {
Log.d(TAG, msg);
}
}
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