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Add acquirePlaceholderSession to DrmSessionManager

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Issue:#4867
PiperOrigin-RevId: 268472704
This commit is contained in:
aquilescanta 2019-09-11 17:15:12 +01:00 committed by Oliver Woodman
parent 890700fa0f
commit 0cc1e5143b
1 changed files with 17 additions and 0 deletions
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17
library/core/src/main/java/com/google/android/exoplayer2/drm/DrmSessionManager.java
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@ -88,6 +88,23 @@ public interface DrmSessionManager<T extends ExoMediaCrypto> {
*/ */
boolean canAcquireSession(DrmInitData drmInitData); boolean canAcquireSession(DrmInitData drmInitData);
/**
* Returns a {@link DrmSession} with an acquired reference that does not execute key requests.
* Returns null if placeholder sessions are not supported by this DRM session manager.
*
* <p>Placeholder {@link DrmSession DrmSessions} may be used to configure secure decoders for
* playback of clear samples, which reduces the costs of transitioning between clear and encrypted
* content periods.
*
* @param playbackLooper The looper associated with the media playback thread.
* @return The placeholder DRM session, or null if this DRM session manager does not support
* placeholder sessions.
*/
@Nullable
default DrmSession<T> acquirePlaceholderSession(Looper playbackLooper) {
return null;
}
/** /**
* Returns a {@link DrmSession} with an acquired reference for the specified {@link DrmInitData}. * Returns a {@link DrmSession} with an acquired reference for the specified {@link DrmInitData}.
* *