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.

1 files changed, 10 insertions, 1 deletions

diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 4683166..d8c622f 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -208,7 +208,16 @@ status_t MediaPlayer::invoke(const Parcel& request, Parcel *reply)
     return INVALID_OPERATION;
 }
 
-
+status_t MediaPlayer::setMetadataFilter(const Parcel& filter)
+{
+    LOGD("setMetadataFilter");
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == NULL)
+    {
+        return NO_INIT;
+    }
+    return mPlayer->setMetadataFilter(filter);
+}
 
 status_t MediaPlayer::setVideoSurface(const sp<Surface>& surface)
 {