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Update MediaDrm documentation for provideKeyResponse

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The documentation for MediaDrm#getKeyResponse says null is returned from
provideKeyResponse for requests of type streaming or release. This corrects
the documentation to indicate that an empty byte array is returned.

bug: 36093612
Change-Id: I2e4fc658d68d827b8a42fb7fa3ef30e35ee51dcf
This commit is contained in:
Jeff Tinker
2017-04-05 07:40:29 -07:00
parent 7458ea3827
commit 2bc391f567
1 changed files with 5 additions and 1 deletions
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6
media/java/android/media/MediaDrm.java
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@@ -779,13 +779,17 @@ public final class MediaDrm {
* response is for an offline key request, a keySetId is returned that can be
* used to later restore the keys to a new session with the method
* {@link #restoreKeys}.
* When the response is for a streaming or release request, null is returned.
* When the response is for a streaming or release request, an empty byte array
* is returned.
*
* @param scope may be a sessionId or keySetId depending on the type of the
* response. Scope should be set to the sessionId when the response is for either
* streaming or offline key requests. Scope should be set to the keySetId when
* the response is for a release request.
* @param response the byte array response from the server
* @return If the response is for an offline request, the keySetId for the offline
* keys will be returned. If the response is for a streaming or release request
* an empty byte array will be returned.
*
* @throws NotProvisionedException if the response indicates that
* reprovisioning is required