/*
* Copyright (C) 2014 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.media.tv;
import android.annotation.SystemApi;
import android.graphics.Rect;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.RemoteException;
import android.util.ArrayMap;
import android.util.Log;
import android.util.Pools.Pool;
import android.util.Pools.SimplePool;
import android.util.SparseArray;
import android.view.InputChannel;
import android.view.InputEvent;
import android.view.InputEventSender;
import android.view.KeyEvent;
import android.view.Surface;
import android.view.View;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
/**
* Central system API to the overall TV input framework (TIF) architecture, which arbitrates
* interaction between applications and the selected TV inputs.
*/
public final class TvInputManager {
private static final String TAG = "TvInputManager";
static final int VIDEO_UNAVAILABLE_REASON_START = 0;
static final int VIDEO_UNAVAILABLE_REASON_END = 3;
/**
* A generic reason. Video is not available due to an unspecified error.
*/
public static final int VIDEO_UNAVAILABLE_REASON_UNKNOWN = VIDEO_UNAVAILABLE_REASON_START;
/**
* Video is not available because the TV input is in the middle of tuning to a new channel.
*/
public static final int VIDEO_UNAVAILABLE_REASON_TUNING = 1;
/**
* Video is not available due to the weak TV signal.
*/
public static final int VIDEO_UNAVAILABLE_REASON_WEAK_SIGNAL = 2;
/**
* Video is not available because the TV input stopped the playback temporarily to buffer more
* data.
*/
public static final int VIDEO_UNAVAILABLE_REASON_BUFFERING = VIDEO_UNAVAILABLE_REASON_END;
/**
* The TV input is in unknown state.
* <p>
* State for denoting unknown TV input state. The typical use case is when a requested TV
* input is removed from the device or it is not registered. Used in
* {@code ITvInputManager.getTvInputState()}.
* </p>
* @hide
*/
public static final int INPUT_STATE_UNKNOWN = -1;
/**
* The TV input is connected.
* <p>
* State for {@link #getInputState} and {@link
* TvInputManager.TvInputCallback#onInputStateChanged}.
* </p>
*/
public static final int INPUT_STATE_CONNECTED = 0;
/**
* The TV input is connected but in standby mode. It would take a while until it becomes
* fully ready.
* <p>
* State for {@link #getInputState} and {@link
* TvInputManager.TvInputCallback#onInputStateChanged}.
* </p>
*/
public static final int INPUT_STATE_CONNECTED_STANDBY = 1;
/**
* The TV input is disconnected.
* <p>
* State for {@link #getInputState} and {@link
* TvInputManager.TvInputCallback#onInputStateChanged}.
* </p>
*/
public static final int INPUT_STATE_DISCONNECTED = 2;
/**
* Broadcast intent action when the user blocked content ratings change. For use with the
* {@link #isRatingBlocked}.
*/
public static final String ACTION_BLOCKED_RATINGS_CHANGED =
"android.media.tv.action.BLOCKED_RATINGS_CHANGED";
/**
* Broadcast intent action when the parental controls enabled state changes. For use with the
* {@link #isParentalControlsEnabled}.
*/
public static final String ACTION_PARENTAL_CONTROLS_ENABLED_CHANGED =
"android.media.tv.action.PARENTAL_CONTROLS_ENABLED_CHANGED";
/**
* Broadcast intent action used to query available content rating systems.
* <p>
* The TV input manager service locates available content rating systems by querying broadcast
* receivers that are registered for this action. An application can offer additional content
* rating systems to the user by declaring a suitable broadcast receiver in its manifest.
* </p><p>
* Here is an example broadcast receiver declaration that an application might include in its
* AndroidManifest.xml to advertise custom content rating systems. The meta-data specifies a
* resource that contains a description of each content rating system that is provided by the
* application.
* <p><pre class="prettyprint">
* {@literal
* <receiver android:name=".TvInputReceiver">
* <intent-filter>
* <action android:name=
* "android.media.tv.action.QUERY_CONTENT_RATING_SYSTEMS" />
* </intent-filter>
* <meta-data
* android:name="android.media.tv.metadata.CONTENT_RATING_SYSTEMS"
* android:resource="@xml/tv_content_rating_systems" />
* </receiver>}</pre></p>
* In the above example, the <code>@xml/tv_content_rating_systems</code> resource refers to an
* XML resource whose root element is <code><rating-system-definitions></code> that
* contains zero or more <code><rating-system-definition></code> elements. Each <code>
* <rating-system-definition></code> element specifies the ratings, sub-ratings and rating
* orders of a particular content rating system.
* </p>
*
* @see TvContentRating
*/
public static final String ACTION_QUERY_CONTENT_RATING_SYSTEMS =
"android.media.tv.action.QUERY_CONTENT_RATING_SYSTEMS";
/**
* Content rating systems metadata associated with {@link #ACTION_QUERY_CONTENT_RATING_SYSTEMS}.
* <p>
* Specifies the resource ID of an XML resource that describes the content rating systems that
* are provided by the application.
* </p>
*/
public static final String META_DATA_CONTENT_RATING_SYSTEMS =
"android.media.tv.metadata.CONTENT_RATING_SYSTEMS";
private final ITvInputManager mService;
private final Object mLock = new Object();
// @GuardedBy("mLock")
private final List<TvInputCallbackRecord> mCallbackRecords =
new LinkedList<TvInputCallbackRecord>();
// A mapping from TV input ID to the state of corresponding input.
// @GuardedBy("mLock")
private final Map<String, Integer> mStateMap = new ArrayMap<String, Integer>();
// A mapping from the sequence number of a session to its SessionCallbackRecord.
private final SparseArray<SessionCallbackRecord> mSessionCallbackRecordMap =
new SparseArray<SessionCallbackRecord>();
// A sequence number for the next session to be created. Should be protected by a lock
// {@code mSessionCallbackRecordMap}.
private int mNextSeq;
private final ITvInputClient mClient;
private final ITvInputManagerCallback mManagerCallback;
private final int mUserId;
/**
* Interface used to receive the created session.
* @hide
*/
@SystemApi
public abstract static class SessionCallback {
/**
* This is called after {@link TvInputManager#createSession} has been processed.
*
* @param session A {@link TvInputManager.Session} instance created. This can be
* {@code null} if the creation request failed.
*/
public void onSessionCreated(Session session) {
}
/**
* This is called when {@link TvInputManager.Session} is released.
* This typically happens when the process hosting the session has crashed or been killed.
*
* @param session A {@link TvInputManager.Session} instance released.
*/
public void onSessionReleased(Session session) {
}
/**
* This is called when the channel of this session is changed by the underlying TV input
* without any {@link TvInputManager.Session#tune(Uri)} request.
*
* @param session A {@link TvInputManager.Session} associated with this callback.
* @param channelUri The URI of a channel.
*/
public void onChannelRetuned(Session session, Uri channelUri) {
}
/**
* This is called when the track information of the session has been changed.
*
* @param session A {@link TvInputManager.Session} associated with this callback.
* @param tracks A list which includes track information.
*/
public void onTracksChanged(Session session, List<TvTrackInfo> tracks) {
}
/**
* This is called when a track for a given type is selected.
*
* @param session A {@link TvInputManager.Session} associated with this callback.
* @param type The type of the selected track. The type can be
* {@link TvTrackInfo#TYPE_AUDIO}, {@link TvTrackInfo#TYPE_VIDEO} or
* {@link TvTrackInfo#TYPE_SUBTITLE}.
* @param trackId The ID of the selected track. When {@code null} the currently selected
* track for a given type should be unselected.
*/
public void onTrackSelected(Session session, int type, String trackId) {
}
/**
* This is invoked when the video size has been changed. It is also called when the first
* time video size information becomes available after the session is tuned to a specific
* channel.
*
* @param session A {@link TvInputManager.Session} associated with this callback.
* @param width The width of the video.
* @param height The height of the video.
*/
public void onVideoSizeChanged(Session session, int width, int height) {
}
/**
* This is called when the video is available, so the TV input starts the playback.
*
* @param session A {@link TvInputManager.Session} associated with this callback.
*/
public void onVideoAvailable(Session session) {
}
/**
* This is called when the video is not available, so the TV input stops the playback.
*
* @param session A {@link TvInputManager.Session} associated with this callback
* @param reason The reason why the TV input stopped the playback:
* <ul>
* <li>{@link TvInputManager#VIDEO_UNAVAILABLE_REASON_UNKNOWN}
* <li>{@link TvInputManager#VIDEO_UNAVAILABLE_REASON_TUNING}
* <li>{@link TvInputManager#VIDEO_UNAVAILABLE_REASON_WEAK_SIGNAL}
* <li>{@link TvInputManager#VIDEO_UNAVAILABLE_REASON_BUFFERING}
* </ul>
*/
public void onVideoUnavailable(Session session, int reason) {
}
/**
* This is called when the current program content turns out to be allowed to watch since
* its content rating is not blocked by parental controls.
*
* @param session A {@link TvInputManager.Session} associated with this callback
*/
public void onContentAllowed(Session session) {
}
/**
* This is called when the current program content turns out to be not allowed to watch
* since its content rating is blocked by parental controls.
*
* @param session A {@link TvInputManager.Session} associated with this callback
* @param rating The content ration of the blocked program.
*/
public void onContentBlocked(Session session, TvContentRating rating) {
}
/**
* This is called when {@link TvInputService.Session#layoutSurface} is called to change the
* layout of surface.
*
* @param session A {@link TvInputManager.Session} associated with this callback
* @param left Left position.
* @param top Top position.
* @param right Right position.
* @param bottom Bottom position.
* @hide
*/
@SystemApi
public void onLayoutSurface(Session session, int left, int top, int right, int bottom) {
}
/**
* This is called when a custom event has been sent from this session.
*
* @param session A {@link TvInputManager.Session} associated with this callback
* @param eventType The type of the event.
* @param eventArgs Optional arguments of the event.
* @hide
*/
@SystemApi
public void onSessionEvent(Session session, String eventType, Bundle eventArgs) {
}
}
private static final class SessionCallbackRecord {
private final SessionCallback mSessionCallback;
private final Handler mHandler;
private Session mSession;
SessionCallbackRecord(SessionCallback sessionCallback,
Handler handler) {
mSessionCallback = sessionCallback;
mHandler = handler;
}
void postSessionCreated(final Session session) {
mSession = session;
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onSessionCreated(session);
}
});
}
void postSessionReleased() {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onSessionReleased(mSession);
}
});
}
void postChannelRetuned(final Uri channelUri) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onChannelRetuned(mSession, channelUri);
}
});
}
void postTracksChanged(final List<TvTrackInfo> tracks) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onTracksChanged(mSession, tracks);
}
});
}
void postTrackSelected(final int type, final String trackId) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onTrackSelected(mSession, type, trackId);
}
});
}
void postVideoSizeChanged(final int width, final int height) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onVideoSizeChanged(mSession, width, height);
}
});
}
void postVideoAvailable() {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onVideoAvailable(mSession);
}
});
}
void postVideoUnavailable(final int reason) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onVideoUnavailable(mSession, reason);
}
});
}
void postContentAllowed() {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onContentAllowed(mSession);
}
});
}
void postContentBlocked(final TvContentRating rating) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onContentBlocked(mSession, rating);
}
});
}
void postLayoutSurface(final int left, final int top, final int right,
final int bottom) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onLayoutSurface(mSession, left, top, right, bottom);
}
});
}
void postSessionEvent(final String eventType, final Bundle eventArgs) {
mHandler.post(new Runnable() {
@Override
public void run() {
mSessionCallback.onSessionEvent(mSession, eventType, eventArgs);
}
});
}
}
/**
* Callback used to monitor status of the TV input.
*/
public abstract static class TvInputCallback {
/**
* This is called when the state of a given TV input is changed.
*
* @param inputId The id of the TV input.
* @param state State of the TV input. The value is one of the following:
* <ul>
* <li>{@link TvInputManager#INPUT_STATE_CONNECTED}
* <li>{@link TvInputManager#INPUT_STATE_CONNECTED_STANDBY}
* <li>{@link TvInputManager#INPUT_STATE_DISCONNECTED}
* </ul>
*/
public void onInputStateChanged(String inputId, int state) {
}
/**
* This is called when a TV input is added.
*
* @param inputId The id of the TV input.
*/
public void onInputAdded(String inputId) {
}
/**
* This is called when a TV input is removed.
*
* @param inputId The id of the TV input.
*/
public void onInputRemoved(String inputId) {
}
/**
* This is called when a TV input is updated. The update of TV input happens when it is
* reinstalled or the media on which the newer version of TV input exists is
* available/unavailable.
*
* @param inputId The id of the TV input.
* @hide
*/
@SystemApi
public void onInputUpdated(String inputId) {
}
}
private static final class TvInputCallbackRecord {
private final TvInputCallback mCallback;
private final Handler mHandler;
public TvInputCallbackRecord(TvInputCallback callback, Handler handler) {
mCallback = callback;
mHandler = handler;
}
public TvInputCallback getCallback() {
return mCallback;
}
public void postInputStateChanged(final String inputId, final int state) {
mHandler.post(new Runnable() {
@Override
public void run() {
mCallback.onInputStateChanged(inputId, state);
}
});
}
public void postInputAdded(final String inputId) {
mHandler.post(new Runnable() {
@Override
public void run() {
mCallback.onInputAdded(inputId);
}
});
}
public void postInputRemoved(final String inputId) {
mHandler.post(new Runnable() {
@Override
public void run() {
mCallback.onInputRemoved(inputId);
}
});
}
public void postInputUpdated(final String inputId) {
mHandler.post(new Runnable() {
@Override
public void run() {
mCallback.onInputUpdated(inputId);
}
});
}
}
/**
* Interface used to receive events from Hardware objects.
* @hide
*/
@SystemApi
public abstract static class HardwareCallback {
public abstract void onReleased();
public abstract void onStreamConfigChanged(TvStreamConfig[] configs);
}
/**
* @hide
*/
public TvInputManager(ITvInputManager service, int userId) {
mService = service;
mUserId = userId;
mClient = new ITvInputClient.Stub() {
@Override
public void onSessionCreated(String inputId, IBinder token, InputChannel channel,
int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for " + token);
return;
}
Session session = null;
if (token != null) {
session = new Session(token, channel, mService, mUserId, seq,
mSessionCallbackRecordMap);
}
record.postSessionCreated(session);
}
}
@Override
public void onSessionReleased(int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
mSessionCallbackRecordMap.delete(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq:" + seq);
return;
}
record.mSession.releaseInternal();
record.postSessionReleased();
}
}
@Override
public void onChannelRetuned(Uri channelUri, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postChannelRetuned(channelUri);
}
}
@Override
public void onTracksChanged(List<TvTrackInfo> tracks, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
if (record.mSession.updateTracks(tracks)) {
record.postTracksChanged(tracks);
postVideoSizeChangedIfNeededLocked(record);
}
}
}
@Override
public void onTrackSelected(int type, String trackId, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
if (record.mSession.updateTrackSelection(type, trackId)) {
record.postTrackSelected(type, trackId);
postVideoSizeChangedIfNeededLocked(record);
}
}
}
private void postVideoSizeChangedIfNeededLocked(SessionCallbackRecord record) {
TvTrackInfo track = record.mSession.getVideoTrackToNotify();
if (track != null) {
record.postVideoSizeChanged(track.getVideoWidth(), track.getVideoHeight());
}
}
@Override
public void onVideoAvailable(int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postVideoAvailable();
}
}
@Override
public void onVideoUnavailable(int reason, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postVideoUnavailable(reason);
}
}
@Override
public void onContentAllowed(int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postContentAllowed();
}
}
@Override
public void onContentBlocked(String rating, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postContentBlocked(TvContentRating.unflattenFromString(rating));
}
}
@Override
public void onLayoutSurface(int left, int top, int right, int bottom, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postLayoutSurface(left, top, right, bottom);
}
}
@Override
public void onSessionEvent(String eventType, Bundle eventArgs, int seq) {
synchronized (mSessionCallbackRecordMap) {
SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
if (record == null) {
Log.e(TAG, "Callback not found for seq " + seq);
return;
}
record.postSessionEvent(eventType, eventArgs);
}
}
};
mManagerCallback = new ITvInputManagerCallback.Stub() {
@Override
public void onInputStateChanged(String inputId, int state) {
synchronized (mLock) {
mStateMap.put(inputId, state);
for (TvInputCallbackRecord record : mCallbackRecords) {
record.postInputStateChanged(inputId, state);
}
}
}
@Override
public void onInputAdded(String inputId) {
synchronized (mLock) {
mStateMap.put(inputId, INPUT_STATE_CONNECTED);
for (TvInputCallbackRecord record : mCallbackRecords) {
record.postInputAdded(inputId);
}
}
}
@Override
public void onInputRemoved(String inputId) {
synchronized (mLock) {
mStateMap.remove(inputId);
for (TvInputCallbackRecord record : mCallbackRecords) {
record.postInputRemoved(inputId);
}
}
}
@Override
public void onInputUpdated(String inputId) {
synchronized (mLock) {
for (TvInputCallbackRecord record : mCallbackRecords) {
record.postInputUpdated(inputId);
}
}
}
};
try {
if (mService != null) {
mService.registerCallback(mManagerCallback, mUserId);
List<TvInputInfo> infos = mService.getTvInputList(mUserId);
synchronized (mLock) {
for (TvInputInfo info : infos) {
String inputId = info.getId();
int state = mService.getTvInputState(inputId, mUserId);
if (state != INPUT_STATE_UNKNOWN) {
mStateMap.put(inputId, state);
}
}
}
}
} catch (RemoteException e) {
Log.e(TAG, "TvInputManager initialization failed: " + e);
}
}
/**
* Returns the complete list of TV inputs on the system.
*
* @return List of {@link TvInputInfo} for each TV input that describes its meta information.
*/
public List<TvInputInfo> getTvInputList() {
try {
return mService.getTvInputList(mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the {@link TvInputInfo} for a given TV input.
*
* @param inputId The ID of the TV input.
* @return the {@link TvInputInfo} for a given TV input. {@code null} if not found.
*/
public TvInputInfo getTvInputInfo(String inputId) {
if (inputId == null) {
throw new IllegalArgumentException("inputId cannot be null");
}
try {
return mService.getTvInputInfo(inputId, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the state of a given TV input. It returns one of the following:
* <ul>
* <li>{@link #INPUT_STATE_CONNECTED}
* <li>{@link #INPUT_STATE_CONNECTED_STANDBY}
* <li>{@link #INPUT_STATE_DISCONNECTED}
* </ul>
*
* @param inputId The id of the TV input.
* @throws IllegalArgumentException if the argument is {@code null} or if there is no
* {@link TvInputInfo} corresponding to {@code inputId}.
*/
public int getInputState(String inputId) {
if (inputId == null) {
throw new IllegalArgumentException("inputId cannot be null");
}
synchronized (mLock) {
Integer state = mStateMap.get(inputId);
if (state == null) {
throw new IllegalArgumentException("Unrecognized input ID: " + inputId);
}
return state.intValue();
}
}
/**
* Registers a {@link TvInputCallback}.
*
* @param callback A callback used to monitor status of the TV inputs.
* @param handler A {@link Handler} that the status change will be delivered to.
* @throws IllegalArgumentException if any of the arguments is {@code null}.
*/
public void registerCallback(TvInputCallback callback, Handler handler) {
if (callback == null) {
throw new IllegalArgumentException("callback cannot be null");
}
if (handler == null) {
throw new IllegalArgumentException("handler cannot be null");
}
synchronized (mLock) {
mCallbackRecords.add(new TvInputCallbackRecord(callback, handler));
}
}
/**
* Unregisters the existing {@link TvInputCallback}.
*
* @param callback The existing callback to remove.
* @throws IllegalArgumentException if any of the arguments is {@code null}.
*/
public void unregisterCallback(final TvInputCallback callback) {
if (callback == null) {
throw new IllegalArgumentException("callback cannot be null");
}
synchronized (mLock) {
for (Iterator<TvInputCallbackRecord> it = mCallbackRecords.iterator();
it.hasNext(); ) {
TvInputCallbackRecord record = it.next();
if (record.getCallback() == callback) {
it.remove();
break;
}
}
}
}
/**
* Returns the user's parental controls enabled state.
*
* @return {@code true} if the user enabled the parental controls, {@code false} otherwise.
*/
public boolean isParentalControlsEnabled() {
try {
return mService.isParentalControlsEnabled(mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Sets the user's parental controls enabled state.
*
* @param enabled The user's parental controls enabled state. {@code true} if the user enabled
* the parental controls, {@code false} otherwise.
* @see #isParentalControlsEnabled
* @hide
*/
@SystemApi
public void setParentalControlsEnabled(boolean enabled) {
try {
mService.setParentalControlsEnabled(enabled, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Checks whether a given TV content rating is blocked by the user.
*
* @param rating The TV content rating to check.
* @return {@code true} if the given TV content rating is blocked, {@code false} otherwise.
*/
public boolean isRatingBlocked(TvContentRating rating) {
if (rating == null) {
throw new IllegalArgumentException("rating cannot be null");
}
try {
return mService.isRatingBlocked(rating.flattenToString(), mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the list of blocked content ratings.
*
* @return the list of content ratings blocked by the user.
* @hide
*/
@SystemApi
public List<TvContentRating> getBlockedRatings() {
try {
List<TvContentRating> ratings = new ArrayList<TvContentRating>();
for (String rating : mService.getBlockedRatings(mUserId)) {
ratings.add(TvContentRating.unflattenFromString(rating));
}
return ratings;
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Adds a user blocked content rating.
*
* @param rating The content rating to block.
* @see #isRatingBlocked
* @see #removeBlockedRating
* @hide
*/
@SystemApi
public void addBlockedRating(TvContentRating rating) {
if (rating == null) {
throw new IllegalArgumentException("rating cannot be null");
}
try {
mService.addBlockedRating(rating.flattenToString(), mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Removes a user blocked content rating.
*
* @param rating The content rating to unblock.
* @see #isRatingBlocked
* @see #addBlockedRating
* @hide
*/
@SystemApi
public void removeBlockedRating(TvContentRating rating) {
if (rating == null) {
throw new IllegalArgumentException("rating cannot be null");
}
try {
mService.removeBlockedRating(rating.flattenToString(), mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the list of all TV content rating systems defined.
* @hide
*/
@SystemApi
public List<TvContentRatingSystemInfo> getTvContentRatingSystemList() {
try {
return mService.getTvContentRatingSystemList(mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Creates a {@link Session} for a given TV input.
* <p>
* The number of sessions that can be created at the same time is limited by the capability of
* the given TV input.
* </p>
*
* @param inputId The id of the TV input.
* @param callback A callback used to receive the created session.
* @param handler A {@link Handler} that the session creation will be delivered to.
* @throws IllegalArgumentException if any of the arguments is {@code null}.
* @hide
*/
@SystemApi
public void createSession(String inputId, final SessionCallback callback,
Handler handler) {
if (inputId == null) {
throw new IllegalArgumentException("id cannot be null");
}
if (callback == null) {
throw new IllegalArgumentException("callback cannot be null");
}
if (handler == null) {
throw new IllegalArgumentException("handler cannot be null");
}
SessionCallbackRecord record = new SessionCallbackRecord(callback, handler);
synchronized (mSessionCallbackRecordMap) {
int seq = mNextSeq++;
mSessionCallbackRecordMap.put(seq, record);
try {
mService.createSession(mClient, inputId, seq, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
}
/**
* Returns the TvStreamConfig list of the given TV input.
*
* If you are using {@link Hardware} object from {@link
* #acquireTvInputHardware}, you should get the list of available streams
* from {@link HardwareCallback#onStreamConfigChanged} method, not from
* here. This method is designed to be used with {@link #captureFrame} in
* capture scenarios specifically and not suitable for any other use.
*
* @param inputId the id of the TV input.
* @return List of {@link TvStreamConfig} which is available for capturing
* of the given TV input.
* @hide
*/
@SystemApi
public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId) {
try {
return mService.getAvailableTvStreamConfigList(inputId, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Take a snapshot of the given TV input into the provided Surface.
*
* @param inputId the id of the TV input.
* @param surface the {@link Surface} to which the snapshot is captured.
* @param config the {@link TvStreamConfig} which is used for capturing.
* @return true when the {@link Surface} is ready to be captured.
* @hide
*/
@SystemApi
public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config) {
try {
return mService.captureFrame(inputId, surface, config, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns true if there is only a single TV input session.
*
* @hide
*/
@SystemApi
public boolean isSingleSessionActive() {
try {
return mService.isSingleSessionActive(mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns a list of TvInputHardwareInfo objects representing available hardware.
*
* @hide
*/
@SystemApi
public List<TvInputHardwareInfo> getHardwareList() {
try {
return mService.getHardwareList();
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Returns acquired TvInputManager.Hardware object for given deviceId.
*
* If there are other Hardware object acquired for the same deviceId, calling this method will
* preempt the previously acquired object and report {@link HardwareCallback#onReleased} to the
* old object.
*
* @hide
*/
@SystemApi
public Hardware acquireTvInputHardware(int deviceId, final HardwareCallback callback,
TvInputInfo info) {
try {
return new Hardware(
mService.acquireTvInputHardware(deviceId, new ITvInputHardwareCallback.Stub() {
@Override
public void onReleased() {
callback.onReleased();
}
@Override
public void onStreamConfigChanged(TvStreamConfig[] configs) {
callback.onStreamConfigChanged(configs);
}
}, info, mUserId));
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Releases previously acquired hardware object.
*
* @hide
*/
@SystemApi
public void releaseTvInputHardware(int deviceId, Hardware hardware) {
try {
mService.releaseTvInputHardware(deviceId, hardware.getInterface(), mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* The Session provides the per-session functionality of TV inputs.
* @hide
*/
@SystemApi
public static final class Session {
static final int DISPATCH_IN_PROGRESS = -1;
static final int DISPATCH_NOT_HANDLED = 0;
static final int DISPATCH_HANDLED = 1;
private static final long INPUT_SESSION_NOT_RESPONDING_TIMEOUT = 2500;
private final ITvInputManager mService;
private final int mUserId;
private final int mSeq;
// For scheduling input event handling on the main thread. This also serves as a lock to
// protect pending input events and the input channel.
private final InputEventHandler mHandler = new InputEventHandler(Looper.getMainLooper());
private final Pool<PendingEvent> mPendingEventPool = new SimplePool<PendingEvent>(20);
private final SparseArray<PendingEvent> mPendingEvents = new SparseArray<PendingEvent>(20);
private final SparseArray<SessionCallbackRecord> mSessionCallbackRecordMap;
private IBinder mToken;
private TvInputEventSender mSender;
private InputChannel mChannel;
private final Object mTrackLock = new Object();
// @GuardedBy("mTrackLock")
private final List<TvTrackInfo> mAudioTracks = new ArrayList<TvTrackInfo>();
// @GuardedBy("mTrackLock")
private final List<TvTrackInfo> mVideoTracks = new ArrayList<TvTrackInfo>();
// @GuardedBy("mTrackLock")
private final List<TvTrackInfo> mSubtitleTracks = new ArrayList<TvTrackInfo>();
// @GuardedBy("mTrackLock")
private String mSelectedAudioTrackId;
// @GuardedBy("mTrackLock")
private String mSelectedVideoTrackId;
// @GuardedBy("mTrackLock")
private String mSelectedSubtitleTrackId;
// @GuardedBy("mTrackLock")
private int mVideoWidth;
// @GuardedBy("mTrackLock")
private int mVideoHeight;
private Session(IBinder token, InputChannel channel, ITvInputManager service, int userId,
int seq, SparseArray<SessionCallbackRecord> sessionCallbackRecordMap) {
mToken = token;
mChannel = channel;
mService = service;
mUserId = userId;
mSeq = seq;
mSessionCallbackRecordMap = sessionCallbackRecordMap;
}
/**
* Releases this session.
*/
public void release() {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.releaseSession(mToken, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
releaseInternal();
}
/**
* Sets this as the main session. The main session is a session whose corresponding TV
* input determines the HDMI-CEC active source device.
*
* @see TvView#setMain
*/
void setMain() {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.setMainSession(mToken, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Sets the {@link android.view.Surface} for this session.
*
* @param surface A {@link android.view.Surface} used to render video.
*/
public void setSurface(Surface surface) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
// surface can be null.
try {
mService.setSurface(mToken, surface, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Notifies of any structural changes (format or size) of the {@link Surface}
* passed by {@link #setSurface}.
*
* @param format The new PixelFormat of the {@link Surface}.
* @param width The new width of the {@link Surface}.
* @param height The new height of the {@link Surface}.
* @hide
*/
@SystemApi
public void dispatchSurfaceChanged(int format, int width, int height) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.dispatchSurfaceChanged(mToken, format, width, height, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Sets the relative stream volume of this session to handle a change of audio focus.
*
* @param volume A volume value between 0.0f to 1.0f.
* @throws IllegalArgumentException if the volume value is out of range.
*/
public void setStreamVolume(float volume) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
if (volume < 0.0f || volume > 1.0f) {
throw new IllegalArgumentException("volume should be between 0.0f and 1.0f");
}
mService.setVolume(mToken, volume, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Tunes to a given channel.
*
* @param channelUri The URI of a channel.
* @throws IllegalArgumentException if the argument is {@code null}.
*/
public void tune(Uri channelUri) {
tune(channelUri, null);
}
/**
* Tunes to a given channel.
*
* @param channelUri The URI of a channel.
* @param params A set of extra parameters which might be handled with this tune event.
* @throws IllegalArgumentException if {@code channelUri} is {@code null}.
* @hide
*/
@SystemApi
public void tune(Uri channelUri, Bundle params) {
if (channelUri == null) {
throw new IllegalArgumentException("channelUri cannot be null");
}
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
synchronized (mTrackLock) {
mAudioTracks.clear();
mVideoTracks.clear();
mSubtitleTracks.clear();
mSelectedAudioTrackId = null;
mSelectedVideoTrackId = null;
mSelectedSubtitleTrackId = null;
mVideoWidth = 0;
mVideoHeight = 0;
}
try {
mService.tune(mToken, channelUri, params, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Enables or disables the caption for this session.
*
* @param enabled {@code true} to enable, {@code false} to disable.
*/
public void setCaptionEnabled(boolean enabled) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.setCaptionEnabled(mToken, enabled, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Selects a track.
*
* @param type The type of the track to select. The type can be
* {@link TvTrackInfo#TYPE_AUDIO}, {@link TvTrackInfo#TYPE_VIDEO} or
* {@link TvTrackInfo#TYPE_SUBTITLE}.
* @param trackId The ID of the track to select. When {@code null}, the currently selected
* track of the given type will be unselected.
* @see #getTracks
*/
public void selectTrack(int type, String trackId) {
synchronized (mTrackLock) {
if (type == TvTrackInfo.TYPE_AUDIO) {
if (trackId != null && !containsTrack(mAudioTracks, trackId)) {
Log.w(TAG, "Invalid audio trackId: " + trackId);
return;
}
} else if (type == TvTrackInfo.TYPE_VIDEO) {
if (trackId != null && !containsTrack(mVideoTracks, trackId)) {
Log.w(TAG, "Invalid video trackId: " + trackId);
return;
}
} else if (type == TvTrackInfo.TYPE_SUBTITLE) {
if (trackId != null && !containsTrack(mSubtitleTracks, trackId)) {
Log.w(TAG, "Invalid subtitle trackId: " + trackId);
return;
}
} else {
throw new IllegalArgumentException("invalid type: " + type);
}
}
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.selectTrack(mToken, type, trackId, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
private boolean containsTrack(List<TvTrackInfo> tracks, String trackId) {
for (TvTrackInfo track : tracks) {
if (track.getId().equals(trackId)) {
return true;
}
}
return false;
}
/**
* Returns the list of tracks for a given type. Returns {@code null} if the information is
* not available.
*
* @param type The type of the tracks. The type can be {@link TvTrackInfo#TYPE_AUDIO},
* {@link TvTrackInfo#TYPE_VIDEO} or {@link TvTrackInfo#TYPE_SUBTITLE}.
* @return the list of tracks for the given type.
*/
public List<TvTrackInfo> getTracks(int type) {
synchronized (mTrackLock) {
if (type == TvTrackInfo.TYPE_AUDIO) {
if (mAudioTracks == null) {
return null;
}
return new ArrayList<TvTrackInfo>(mAudioTracks);
} else if (type == TvTrackInfo.TYPE_VIDEO) {
if (mVideoTracks == null) {
return null;
}
return new ArrayList<TvTrackInfo>(mVideoTracks);
} else if (type == TvTrackInfo.TYPE_SUBTITLE) {
if (mSubtitleTracks == null) {
return null;
}
return new ArrayList<TvTrackInfo>(mSubtitleTracks);
}
}
throw new IllegalArgumentException("invalid type: " + type);
}
/**
* Returns the selected track for a given type. Returns {@code null} if the information is
* not available or any of the tracks for the given type is not selected.
*
* @return the ID of the selected track.
* @see #selectTrack
*/
public String getSelectedTrack(int type) {
synchronized (mTrackLock) {
if (type == TvTrackInfo.TYPE_AUDIO) {
return mSelectedAudioTrackId;
} else if (type == TvTrackInfo.TYPE_VIDEO) {
return mSelectedVideoTrackId;
} else if (type == TvTrackInfo.TYPE_SUBTITLE) {
return mSelectedSubtitleTrackId;
}
}
throw new IllegalArgumentException("invalid type: " + type);
}
/**
* Responds to onTracksChanged() and updates the internal track information. Returns true if
* there is an update.
*/
boolean updateTracks(List<TvTrackInfo> tracks) {
synchronized (mTrackLock) {
mAudioTracks.clear();
mVideoTracks.clear();
mSubtitleTracks.clear();
for (TvTrackInfo track : tracks) {
if (track.getType() == TvTrackInfo.TYPE_AUDIO) {
mAudioTracks.add(track);
} else if (track.getType() == TvTrackInfo.TYPE_VIDEO) {
mVideoTracks.add(track);
} else if (track.getType() == TvTrackInfo.TYPE_SUBTITLE) {
mSubtitleTracks.add(track);
}
}
return !mAudioTracks.isEmpty() || !mVideoTracks.isEmpty()
|| !mSubtitleTracks.isEmpty();
}
}
/**
* Responds to onTrackSelected() and updates the internal track selection information.
* Returns true if there is an update.
*/
boolean updateTrackSelection(int type, String trackId) {
synchronized (mTrackLock) {
if (type == TvTrackInfo.TYPE_AUDIO && trackId != mSelectedAudioTrackId) {
mSelectedAudioTrackId = trackId;
return true;
} else if (type == TvTrackInfo.TYPE_VIDEO && trackId != mSelectedVideoTrackId) {
mSelectedVideoTrackId = trackId;
return true;
} else if (type == TvTrackInfo.TYPE_SUBTITLE
&& trackId != mSelectedSubtitleTrackId) {
mSelectedSubtitleTrackId = trackId;
return true;
}
}
return false;
}
/**
* Returns the new/updated video track that contains new video size information. Returns
* null if there is no video track to notify. Subsequent calls of this method results in a
* non-null video track returned only by the first call and null returned by following
* calls. The caller should immediately notify of the video size change upon receiving the
* track.
*/
TvTrackInfo getVideoTrackToNotify() {
synchronized (mTrackLock) {
if (!mVideoTracks.isEmpty() && mSelectedVideoTrackId != null) {
for (TvTrackInfo track : mVideoTracks) {
if (track.getId().equals(mSelectedVideoTrackId)) {
int videoWidth = track.getVideoWidth();
int videoHeight = track.getVideoHeight();
if (mVideoWidth != videoWidth || mVideoHeight != videoHeight) {
mVideoWidth = videoWidth;
mVideoHeight = videoHeight;
return track;
}
}
}
}
}
return null;
}
/**
* Calls {@link TvInputService.Session#appPrivateCommand(String, Bundle)
* TvInputService.Session.appPrivateCommand()} on the current TvView.
*
* @param action Name of the command to be performed. This <em>must</em> be a scoped name,
* i.e. prefixed with a package name you own, so that different developers will
* not create conflicting commands.
* @param data Any data to include with the command.
* @hide
*/
@SystemApi
public void sendAppPrivateCommand(String action, Bundle data) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.sendAppPrivateCommand(mToken, action, data, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Creates an overlay view. Once the overlay view is created, {@link #relayoutOverlayView}
* should be called whenever the layout of its containing view is changed.
* {@link #removeOverlayView()} should be called to remove the overlay view.
* Since a session can have only one overlay view, this method should be called only once
* or it can be called again after calling {@link #removeOverlayView()}.
*
* @param view A view playing TV.
* @param frame A position of the overlay view.
* @throws IllegalArgumentException if any of the arguments is {@code null}.
* @throws IllegalStateException if {@code view} is not attached to a window.
*/
void createOverlayView(View view, Rect frame) {
if (view == null) {
throw new IllegalArgumentException("view cannot be null");
}
if (frame == null) {
throw new IllegalArgumentException("frame cannot be null");
}
if (view.getWindowToken() == null) {
throw new IllegalStateException("view must be attached to a window");
}
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.createOverlayView(mToken, view.getWindowToken(), frame, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Relayouts the current overlay view.
*
* @param frame A new position of the overlay view.
* @throws IllegalArgumentException if the arguments is {@code null}.
*/
void relayoutOverlayView(Rect frame) {
if (frame == null) {
throw new IllegalArgumentException("frame cannot be null");
}
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.relayoutOverlayView(mToken, frame, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Removes the current overlay view.
*/
void removeOverlayView() {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
try {
mService.removeOverlayView(mToken, mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Requests to unblock content blocked by parental controls.
*/
void requestUnblockContent(TvContentRating unblockedRating) {
if (mToken == null) {
Log.w(TAG, "The session has been already released");
return;
}
if (unblockedRating == null) {
throw new IllegalArgumentException("unblockedRating cannot be null");
}
try {
mService.requestUnblockContent(mToken, unblockedRating.flattenToString(), mUserId);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
/**
* Dispatches an input event to this session.
*
* @param event An {@link InputEvent} to dispatch.
* @param token A token used to identify the input event later in the callback.
* @param callback A callback used to receive the dispatch result.
* @param handler A {@link Handler} that the dispatch result will be delivered to.
* @return Returns {@link #DISPATCH_HANDLED} if the event was handled. Returns
* {@link #DISPATCH_NOT_HANDLED} if the event was not handled. Returns
* {@link #DISPATCH_IN_PROGRESS} if the event is in progress and the callback will
* be invoked later.
* @throws IllegalArgumentException if any of the necessary arguments is {@code null}.
* @hide
*/
public int dispatchInputEvent(InputEvent event, Object token,
FinishedInputEventCallback callback, Handler handler) {
if (event == null) {
throw new IllegalArgumentException("event cannot be null");
}
if (callback != null && handler == null) {
throw new IllegalArgumentException("handler cannot be null");
}
synchronized (mHandler) {
if (mChannel == null) {
return DISPATCH_NOT_HANDLED;
}
PendingEvent p = obtainPendingEventLocked(event, token, callback, handler);
if (Looper.myLooper() == Looper.getMainLooper()) {
// Already running on the main thread so we can send the event immediately.
return sendInputEventOnMainLooperLocked(p);
}
// Post the event to the main thread.
Message msg = mHandler.obtainMessage(InputEventHandler.MSG_SEND_INPUT_EVENT, p);
msg.setAsynchronous(true);
mHandler.sendMessage(msg);
return DISPATCH_IN_PROGRESS;
}
}
/**
* Callback that is invoked when an input event that was dispatched to this session has been
* finished.
*
* @hide
*/
public interface FinishedInputEventCallback {
/**
* Called when the dispatched input event is finished.
*
* @param token A token passed to {@link #dispatchInputEvent}.
* @param handled {@code true} if the dispatched input event was handled properly.
* {@code false} otherwise.
*/
public void onFinishedInputEvent(Object token, boolean handled);
}
// Must be called on the main looper
private void sendInputEventAndReportResultOnMainLooper(PendingEvent p) {
synchronized (mHandler) {
int result = sendInputEventOnMainLooperLocked(p);
if (result == DISPATCH_IN_PROGRESS) {
return;
}
}
invokeFinishedInputEventCallback(p, false);
}
private int sendInputEventOnMainLooperLocked(PendingEvent p) {
if (mChannel != null) {
if (mSender == null) {
mSender = new TvInputEventSender(mChannel, mHandler.getLooper());
}
final InputEvent event = p.mEvent;
final int seq = event.getSequenceNumber();
if (mSender.sendInputEvent(seq, event)) {
mPendingEvents.put(seq, p);
Message msg = mHandler.obtainMessage(InputEventHandler.MSG_TIMEOUT_INPUT_EVENT, p);
msg.setAsynchronous(true);
mHandler.sendMessageDelayed(msg, INPUT_SESSION_NOT_RESPONDING_TIMEOUT);
return DISPATCH_IN_PROGRESS;
}
Log.w(TAG, "Unable to send input event to session: " + mToken + " dropping:"
+ event);
}
return DISPATCH_NOT_HANDLED;
}
void finishedInputEvent(int seq, boolean handled, boolean timeout) {
final PendingEvent p;
synchronized (mHandler) {
int index = mPendingEvents.indexOfKey(seq);
if (index < 0) {
return; // spurious, event already finished or timed out
}
p = mPendingEvents.valueAt(index);
mPendingEvents.removeAt(index);
if (timeout) {
Log.w(TAG, "Timeout waiting for seesion to handle input event after "
+ INPUT_SESSION_NOT_RESPONDING_TIMEOUT + " ms: " + mToken);
} else {
mHandler.removeMessages(InputEventHandler.MSG_TIMEOUT_INPUT_EVENT, p);
}
}
invokeFinishedInputEventCallback(p, handled);
}
// Assumes the event has already been removed from the queue.
void invokeFinishedInputEventCallback(PendingEvent p, boolean handled) {
p.mHandled = handled;
if (p.mEventHandler.getLooper().isCurrentThread()) {
// Already running on the callback handler thread so we can send the callback
// immediately.
p.run();
} else {
// Post the event to the callback handler thread.
// In this case, the callback will be responsible for recycling the event.
Message msg = Message.obtain(p.mEventHandler, p);
msg.setAsynchronous(true);
msg.sendToTarget();
}
}
private void flushPendingEventsLocked() {
mHandler.removeMessages(InputEventHandler.MSG_FLUSH_INPUT_EVENT);
final int count = mPendingEvents.size();
for (int i = 0; i < count; i++) {
int seq = mPendingEvents.keyAt(i);
Message msg = mHandler.obtainMessage(InputEventHandler.MSG_FLUSH_INPUT_EVENT, seq, 0);
msg.setAsynchronous(true);
msg.sendToTarget();
}
}
private PendingEvent obtainPendingEventLocked(InputEvent event, Object token,
FinishedInputEventCallback callback, Handler handler) {
PendingEvent p = mPendingEventPool.acquire();
if (p == null) {
p = new PendingEvent();
}
p.mEvent = event;
p.mEventToken = token;
p.mCallback = callback;
p.mEventHandler = handler;
return p;
}
private void recyclePendingEventLocked(PendingEvent p) {
p.recycle();
mPendingEventPool.release(p);
}
IBinder getToken() {
return mToken;
}
private void releaseInternal() {
mToken = null;
synchronized (mHandler) {
if (mChannel != null) {
if (mSender != null) {
flushPendingEventsLocked();
mSender.dispose();
mSender = null;
}
mChannel.dispose();
mChannel = null;
}
}
synchronized (mSessionCallbackRecordMap) {
mSessionCallbackRecordMap.remove(mSeq);
}
}
private final class InputEventHandler extends Handler {
public static final int MSG_SEND_INPUT_EVENT = 1;
public static final int MSG_TIMEOUT_INPUT_EVENT = 2;
public static final int MSG_FLUSH_INPUT_EVENT = 3;
InputEventHandler(Looper looper) {
super(looper, null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_SEND_INPUT_EVENT: {
sendInputEventAndReportResultOnMainLooper((PendingEvent) msg.obj);
return;
}
case MSG_TIMEOUT_INPUT_EVENT: {
finishedInputEvent(msg.arg1, false, true);
return;
}
case MSG_FLUSH_INPUT_EVENT: {
finishedInputEvent(msg.arg1, false, false);
return;
}
}
}
}
private final class TvInputEventSender extends InputEventSender {
public TvInputEventSender(InputChannel inputChannel, Looper looper) {
super(inputChannel, looper);
}
@Override
public void onInputEventFinished(int seq, boolean handled) {
finishedInputEvent(seq, handled, false);
}
}
private final class PendingEvent implements Runnable {
public InputEvent mEvent;
public Object mEventToken;
public FinishedInputEventCallback mCallback;
public Handler mEventHandler;
public boolean mHandled;
public void recycle() {
mEvent = null;
mEventToken = null;
mCallback = null;
mEventHandler = null;
mHandled = false;
}
@Override
public void run() {
mCallback.onFinishedInputEvent(mEventToken, mHandled);
synchronized (mEventHandler) {
recyclePendingEventLocked(this);
}
}
}
}
/**
* The Hardware provides the per-hardware functionality of TV hardware.
*
* TV hardware is physical hardware attached to the Android device; for example, HDMI ports,
* Component/Composite ports, etc. Specifically, logical devices such as HDMI CEC logical
* devices don't fall into this category.
*
* @hide
*/
@SystemApi
public final static class Hardware {
private final ITvInputHardware mInterface;
private Hardware(ITvInputHardware hardwareInterface) {
mInterface = hardwareInterface;
}
private ITvInputHardware getInterface() {
return mInterface;
}
public boolean setSurface(Surface surface, TvStreamConfig config) {
try {
return mInterface.setSurface(surface, config);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
public void setStreamVolume(float volume) {
try {
mInterface.setStreamVolume(volume);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
public boolean dispatchKeyEventToHdmi(KeyEvent event) {
try {
return mInterface.dispatchKeyEventToHdmi(event);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
public void overrideAudioSink(int audioType, String audioAddress, int samplingRate,
int channelMask, int format) {
try {
mInterface.overrideAudioSink(audioType, audioAddress, samplingRate, channelMask,
format);
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
}
}
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