Implemented the metadata changed notification filters.
IMediaPlayer:
new setMetadataFilter method so set a filter (2 lists of allowed and blocked metadata type)
serialized in a Parcel.
MediaPlayer.java/android_media_MediaPlayer.cpp/mediaplayer.cpp
new setMetadataFilter that passes the filter down to the MediaPlayerService's binder interface.
MediaPlayerService.cpp
The Client inner class holds the allowed and blocked metadata types.
These are in 2 vectors that get populated in the setMetadataFilter.
A new shourldDropMetadata method returns true if a type of metadata should be dropped according
to the filters.
The notify method in run the metadata update notifications thru the filter and possibly drop them.
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 3f278f4..131e510 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -41,6 +41,7 @@
SET_LOOPING,
SET_VOLUME,
INVOKE,
+ SET_METADATA_FILTER,
};
class BpMediaPlayer: public BpInterface<IMediaPlayer>
@@ -178,6 +179,15 @@
status_t retcode = remote()->transact(INVOKE, request, reply);
return retcode;
}
+
+ status_t setMetadataFilter(const Parcel& request)
+ {
+ Parcel reply;
+ // Avoid doing any extra copy of the request. The interface
+ // descriptor should have been set by MediaPlayer.java.
+ remote()->transact(SET_METADATA_FILTER, request, &reply);
+ return reply.readInt32();
+ }
};
IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer");
@@ -273,6 +283,11 @@
invoke(data, reply);
return NO_ERROR;
} break;
+ case SET_METADATA_FILTER: {
+ CHECK_INTERFACE(IMediaPlayer, data, reply);
+ reply->writeInt32(setMetadataFilter(data));
+ return NO_ERROR;
+ } break;
default:
return BBinder::onTransact(code, data, reply, flags);
}