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Use MediaSourceEventDispatcher in DefaultDrmSession(Manager)

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Remove add/removeEventListener methods & associated listener plumbing.

Part of issue:#6765

PiperOrigin-RevId: 302411347
This commit is contained in:
ibaker 2020-03-23 12:13:28 +00:00 committed by Oliver Woodman
parent 1fa9dbc31e
commit adae53c787
3 changed files with 37 additions and 36 deletions
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41
library/core/src/main/java/com/google/android/exoplayer2/drm/DefaultDrmSession.java
View File

@ -31,7 +31,7 @@ import com.google.android.exoplayer2.drm.ExoMediaDrm.KeyRequest;
import com.google.android.exoplayer2.drm.ExoMediaDrm.ProvisionRequest;
import com.google.android.exoplayer2.upstream.LoadErrorHandlingPolicy;
import com.google.android.exoplayer2.util.Assertions;
import com.google.android.exoplayer2.util.EventDispatcher;
import com.google.android.exoplayer2.util.CopyOnWriteMultiset;
import com.google.android.exoplayer2.util.Log;
import com.google.android.exoplayer2.util.MediaSourceEventDispatcher;
import com.google.android.exoplayer2.util.Util;
@ -109,7 +109,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
private final boolean playClearSamplesWithoutKeys;
private final boolean isPlaceholderSession;
private final HashMap<String, String> keyRequestParameters;
private final EventDispatcher<DrmSessionEventListener> eventDispatcher;
private final CopyOnWriteMultiset<MediaSourceEventDispatcher> eventDispatchers;
private final LoadErrorHandlingPolicy loadErrorHandlingPolicy;
/* package */ final MediaDrmCallback callback;
@ -144,7 +144,6 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
* @param keyRequestParameters Key request parameters.
* @param callback The media DRM callback.
* @param playbackLooper The playback looper.
* @param eventDispatcher The dispatcher for DRM session manager events.
* @param loadErrorHandlingPolicy The {@link LoadErrorHandlingPolicy} for key and provisioning
* requests.
*/
@ -161,7 +160,6 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
HashMap<String, String> keyRequestParameters,
MediaDrmCallback callback,
Looper playbackLooper,
EventDispatcher<DrmSessionEventListener> eventDispatcher,
LoadErrorHandlingPolicy loadErrorHandlingPolicy) {
if (mode == DefaultDrmSessionManager.MODE_QUERY
|| mode == DefaultDrmSessionManager.MODE_RELEASE) {
@ -182,7 +180,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
}
this.keyRequestParameters = keyRequestParameters;
this.callback = callback;
this.eventDispatcher = eventDispatcher;
this.eventDispatchers = new CopyOnWriteMultiset<>();
this.loadErrorHandlingPolicy = loadErrorHandlingPolicy;
state = STATE_OPENING;
responseHandler = new ResponseHandler(playbackLooper);
@ -261,6 +259,9 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
@Override
public void acquire(@Nullable MediaSourceEventDispatcher eventDispatcher) {
Assertions.checkState(referenceCount >= 0);
if (eventDispatcher != null) {
eventDispatchers.add(eventDispatcher);
}
if (++referenceCount == 1) {
Assertions.checkState(state == STATE_OPENING);
requestHandlerThread = new HandlerThread("DrmRequestHandler");
@ -269,6 +270,14 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
if (openInternal(true)) {
doLicense(true);
}
} else {
// TODO: Add a parameter to onDrmSessionAcquired to indicate whether the session is being
// re-used or not.
if (eventDispatcher != null) {
eventDispatcher.dispatch(
(listener, windowIndex, mediaPeriodId) -> listener.onDrmSessionAcquired(),
DrmSessionEventListener.class);
}
}
}
@ -289,10 +298,13 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
if (sessionId != null) {
mediaDrm.closeSession(sessionId);
sessionId = null;
this.eventDispatcher.dispatch(DrmSessionEventListener::onDrmSessionReleased);
}
releaseCallback.onSessionReleased(this);
}
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmSessionReleased());
if (eventDispatcher != null) {
eventDispatchers.remove(eventDispatcher);
}
}
// Internal methods.
@ -314,7 +326,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
try {
sessionId = mediaDrm.openSession();
mediaCrypto = mediaDrm.createMediaCrypto(sessionId);
eventDispatcher.dispatch(DrmSessionEventListener::onDrmSessionAcquired);
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmSessionAcquired());
state = STATE_OPENED;
Assertions.checkNotNull(sessionId);
return true;
@ -378,7 +390,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
onError(new KeysExpiredException());
} else {
state = STATE_OPENED_WITH_KEYS;
eventDispatcher.dispatch(DrmSessionEventListener::onDrmKeysRestored);
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmKeysRestored());
}
}
break;
@ -448,7 +460,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
byte[] responseData = (byte[]) response;
if (mode == DefaultDrmSessionManager.MODE_RELEASE) {
mediaDrm.provideKeyResponse(Util.castNonNull(offlineLicenseKeySetId), responseData);
eventDispatcher.dispatch(DrmSessionEventListener::onDrmKeysRestored);
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmKeysRestored());
} else {
byte[] keySetId = mediaDrm.provideKeyResponse(sessionId, responseData);
if ((mode == DefaultDrmSessionManager.MODE_DOWNLOAD
@ -459,7 +471,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
offlineLicenseKeySetId = keySetId;
}
state = STATE_OPENED_WITH_KEYS;
eventDispatcher.dispatch(DrmSessionEventListener::onDrmKeysLoaded);
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmKeysLoaded());
}
} catch (Exception e) {
onKeysError(e);
@ -483,7 +495,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
private void onError(final Exception e) {
lastException = new DrmSessionException(e);
eventDispatcher.dispatch(listener -> listener.onDrmSessionManagerError(e));
dispatchEvent((listener, windowIndex, mediaPeriodId) -> listener.onDrmSessionManagerError(e));
if (state != STATE_OPENED_WITH_KEYS) {
state = STATE_ERROR;
}
@ -495,6 +507,13 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
return state == STATE_OPENED || state == STATE_OPENED_WITH_KEYS;
}
private void dispatchEvent(
MediaSourceEventDispatcher.EventWithPeriodId<DrmSessionEventListener> event) {
for (MediaSourceEventDispatcher eventDispatcher : eventDispatchers.elementSet()) {
eventDispatcher.dispatch(event, DrmSessionEventListener.class);
}
}
// Internal classes.
@SuppressLint("HandlerLeak")

29
library/core/src/main/java/com/google/android/exoplayer2/drm/DefaultDrmSessionManager.java
View File

@ -29,7 +29,6 @@ import com.google.android.exoplayer2.drm.ExoMediaDrm.OnEventListener;
import com.google.android.exoplayer2.upstream.DefaultLoadErrorHandlingPolicy;
import com.google.android.exoplayer2.upstream.LoadErrorHandlingPolicy;
import com.google.android.exoplayer2.util.Assertions;
import com.google.android.exoplayer2.util.EventDispatcher;
import com.google.android.exoplayer2.util.Log;
import com.google.android.exoplayer2.util.MediaSourceEventDispatcher;
import com.google.android.exoplayer2.util.Util;
@ -240,7 +239,6 @@ public class DefaultDrmSessionManager implements DrmSessionManager {
private final ExoMediaDrm.Provider exoMediaDrmProvider;
private final MediaDrmCallback callback;
private final HashMap<String, String> keyRequestParameters;
private final EventDispatcher<DrmSessionEventListener> eventDispatcher;
private final boolean multiSession;
private final int[] useDrmSessionsForClearContentTrackTypes;
private final boolean playClearSamplesWithoutKeys;
@ -356,7 +354,6 @@ public class DefaultDrmSessionManager implements DrmSessionManager {
this.exoMediaDrmProvider = exoMediaDrmProvider;
this.callback = callback;
this.keyRequestParameters = keyRequestParameters;
this.eventDispatcher = new EventDispatcher<>();
this.multiSession = multiSession;
this.useDrmSessionsForClearContentTrackTypes = useDrmSessionsForClearContentTrackTypes;
this.playClearSamplesWithoutKeys = playClearSamplesWithoutKeys;
@ -367,25 +364,6 @@ public class DefaultDrmSessionManager implements DrmSessionManager {
provisioningSessions = new ArrayList<>();
}
/**
* Adds a {@link DrmSessionEventListener} to listen to drm session events.
*
* @param handler A handler to use when delivering events to {@code eventListener}.
* @param eventListener A listener of events.
*/
public final void addListener(Handler handler, DrmSessionEventListener eventListener) {
eventDispatcher.addListener(handler, eventListener);
}
/**
* Removes a {@link DrmSessionEventListener} from the list of drm session event listeners.
*
* @param eventListener The listener to remove.
*/
public final void removeListener(DrmSessionEventListener eventListener) {
eventDispatcher.removeListener(eventListener);
}
/**
* Sets the mode, which determines the role of sessions acquired from the instance. This must be
* called before {@link #acquireSession(Looper, MediaSourceEventDispatcher, DrmInitData)} or
@ -509,7 +487,11 @@ public class DefaultDrmSessionManager implements DrmSessionManager {
schemeDatas = getSchemeDatas(drmInitData, uuid, false);
if (schemeDatas.isEmpty()) {
final MissingSchemeDataException error = new MissingSchemeDataException(uuid);
this.eventDispatcher.dispatch(listener -> listener.onDrmSessionManagerError(error));
if (eventDispatcher != null) {
eventDispatcher.dispatch(
(listener, windowIndex, mediaPeriodId) -> listener.onDrmSessionManagerError(error),
DrmSessionEventListener.class);
}
return new ErrorStateDrmSession(new DrmSessionException(error));
}
}
@ -579,7 +561,6 @@ public class DefaultDrmSessionManager implements DrmSessionManager {
keyRequestParameters,
callback,
Assertions.checkNotNull(playbackLooper),
eventDispatcher,
loadErrorHandlingPolicy);
}

3
library/core/src/main/java/com/google/android/exoplayer2/drm/OfflineLicenseHelper.java
View File

@ -177,7 +177,8 @@ public final class OfflineLicenseHelper {
conditionVariable.open();
}
};
drmSessionManager.addListener(new Handler(handlerThread.getLooper()), eventListener);
eventDispatcher.addEventListener(
new Handler(handlerThread.getLooper()), eventListener, DrmSessionEventListener.class);
}
/**