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[Media ML] Add get/setSessionPolicies APIs

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This allows vendor/OEMs to dynamically change whether sessions should
be used as buttons sessions or not.

Bug: 147027868
Test: Manually
Change-Id: I9db0d298d5caca0b61b41d94455e8f8f1b1ea685
This commit is contained in:
Jin Seok Park
2020-03-06 13:06:31 +09:00
parent dc1fe78978
commit 9fa9b10a98
5 changed files with 73 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
media/java/android/media/session/ISessionManager.aidl
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@@ -75,4 +75,6 @@ interface ISessionManager {
boolean isTrusted(String controllerPackageName, int controllerPid, int controllerUid);
void setCustomMediaKeyDispatcherForTesting(String name);
void setCustomSessionPolicyProviderForTesting(String name);
int getSessionPolicies(in MediaSession.Token token);
void setSessionPolicies(in MediaSession.Token token, int policies);
}

28
media/java/android/media/session/MediaSessionManager.java
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@@ -912,6 +912,34 @@ public final class MediaSessionManager {
}
}
/**
* Get session policies of the specified {@link MediaSession.Token}.
*
* @hide
*/
@Nullable
public int getSessionPolicies(@NonNull MediaSession.Token token) {
try {
return mService.getSessionPolicies(token);
} catch (RemoteException e) {
Log.e(TAG, "Failed to get session policies", e);
}
return 0;
}
/**
* Set new session policies to the specified {@link MediaSession.Token}.
*
* @hide
*/
public void setSessionPolicies(@NonNull MediaSession.Token token, @Nullable int policies) {
try {
mService.setSessionPolicies(token, policies);
} catch (RemoteException e) {
Log.e(TAG, "Failed to set session policies", e);
}
}
/**
* Listens for changes to the list of active sessions. This can be added
* using {@link #addOnActiveSessionsChangedListener}.

2
services/core/java/com/android/server/media/AudioPlayerStateMonitor.java
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@@ -166,7 +166,7 @@ class AudioPlayerStateMonitor {
* Cleans up the sorted list of audio playback client UIDs with given {@param
* mediaButtonSessionUid}.
* <p>UIDs whose audio playback are inactive and have started before the media button session's
* audio playback cannot be the lastly played media app. So they won't needed anymore.
* audio playback cannot be the lastly played media app. So they won't be needed anymore.
*
* @param mediaButtonSessionUid UID of the media button session.
*/

28
services/core/java/com/android/server/media/MediaSessionService.java
View File

@@ -1973,6 +1973,34 @@ public class MediaSessionService extends SystemService implements Monitor {
instantiateCustomProvider(name);
}
@Override
public int getSessionPolicies(MediaSession.Token token) {
synchronized (mLock) {
MediaSessionRecord record = getMediaSessionRecordLocked(token);
if (record != null) {
return record.getSessionPolicies();
}
}
return 0;
}
@Override
public void setSessionPolicies(MediaSession.Token token, int policies) {
final long callingIdentityToken = Binder.clearCallingIdentity();
try {
synchronized (mLock) {
MediaSessionRecord record = getMediaSessionRecordLocked(token);
FullUserRecord user = getFullUserRecordLocked(record.getUserId());
if (record != null && user != null) {
record.setSessionPolicies(policies);
user.mPriorityStack.updateMediaButtonSessionIfNeeded();
}
}
} finally {
Binder.restoreCallingIdentity(callingIdentityToken);
}
}
// For MediaSession
private int verifySessionsRequest(ComponentName componentName, int userId, final int pid,
final int uid) {

32
services/core/java/com/android/server/media/MediaSessionStack.java
View File

@@ -156,7 +156,11 @@ class MediaSessionStack {
if (mMediaButtonSession != null && mMediaButtonSession.getUid() == record.getUid()) {
MediaSessionRecordImpl newMediaButtonSession =
findMediaButtonSession(mMediaButtonSession.getUid());
if (newMediaButtonSession != mMediaButtonSession) {
if (newMediaButtonSession != mMediaButtonSession
&& (newMediaButtonSession.getSessionPolicies()
& SessionPolicyProvider.SESSION_POLICY_IGNORE_BUTTON_SESSION) == 0) {
// Check if the policy states that this session should not be updated as a media
// button session.
updateMediaButtonSession(newMediaButtonSession);
}
}
@@ -187,14 +191,15 @@ class MediaSessionStack {
for (int i = 0; i < audioPlaybackUids.size(); i++) {
MediaSessionRecordImpl mediaButtonSession =
findMediaButtonSession(audioPlaybackUids.get(i));
if (mediaButtonSession != null
&& (mediaButtonSession.getSessionPolicies()
& SessionPolicyProvider.SESSION_POLICY_IGNORE_BUTTON_SESSION) == 0) {
// Found the media button session.
mAudioPlayerStateMonitor.cleanUpAudioPlaybackUids(mediaButtonSession.getUid());
if (mMediaButtonSession != mediaButtonSession) {
updateMediaButtonSession(mediaButtonSession);
}
if (mediaButtonSession == null) continue;
boolean ignoreButtonSession = (mediaButtonSession.getSessionPolicies()
& SessionPolicyProvider.SESSION_POLICY_IGNORE_BUTTON_SESSION) != 0;
if (mediaButtonSession == mMediaButtonSession && ignoreButtonSession) {
updateMediaButtonSession(null);
return;
}
if (mediaButtonSession != mMediaButtonSession && !ignoreButtonSession) {
updateMediaButtonSession(mediaButtonSession);
return;
}
}
@@ -276,15 +281,6 @@ class MediaSessionStack {
}
private void updateMediaButtonSession(MediaSessionRecordImpl newMediaButtonSession) {
// Check if the policy states that this session should not be updated as a media button
// session.
if (newMediaButtonSession != null) {
int policies = newMediaButtonSession.getSessionPolicies();
if ((policies & SessionPolicyProvider.SESSION_POLICY_IGNORE_BUTTON_SESSION) != 0) {
return;
}
}
MediaSessionRecordImpl oldMediaButtonSession = mMediaButtonSession;
mMediaButtonSession = newMediaButtonSession;
mOnMediaButtonSessionChangedListener.onMediaButtonSessionChanged(