Added Visualizer effect.

The visualizer enables application to retrieve part of the currently playing audio for visualization purpose.
It is not an audio recording interface and only returns partial and low quality audio content as a waveform or
a frequency representation (FFT).

Removed temporary hack made in MediaPlayer for animated wall papers based on audio visualization (snoop() method.

This commit also includes a change in AudioEffect class:
 - the enable()/disable() methods have been replaced bya more standard setEnabled() method.
 - some fixes in javadoc

Change-Id: Id092a1340e9e38dae68646ade7be054e3a36980e

1 files changed, 1 insertions, 16 deletions

diff --git a/media/libmedia/IMediaPlayerService.cpp b/media/libmedia/IMediaPlayerService.cpp
index 1ae222e..4abfa75 100644
--- a/media/libmedia/IMediaPlayerService.cpp
+++ b/media/libmedia/IMediaPlayerService.cpp
@@ -35,8 +35,7 @@ enum {
     DECODE_FD,
     CREATE_MEDIA_RECORDER,
     CREATE_METADATA_RETRIEVER,
-    GET_OMX,
-    SNOOP
+    GET_OMX
 };
 
 class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
@@ -134,14 +133,6 @@ public:
         return interface_cast<IMemory>(reply.readStrongBinder());
     }
 
-    virtual sp<IMemory> snoop()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
-        remote()->transact(SNOOP, data, &reply);
-        return interface_cast<IMemory>(reply.readStrongBinder());
-    }
-
     virtual sp<IOMX> getOMX() {
         Parcel data, reply;
         data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
@@ -221,12 +212,6 @@ status_t BnMediaPlayerService::onTransact(
             reply->writeStrongBinder(player->asBinder());
             return NO_ERROR;
         } break;
-        case SNOOP: {
-            CHECK_INTERFACE(IMediaPlayerService, data, reply);
-            sp<IMemory> snooped_audio = snoop();
-            reply->writeStrongBinder(snooped_audio->asBinder());
-            return NO_ERROR;
-        } break;
         case CREATE_MEDIA_RECORDER: {
             CHECK_INTERFACE(IMediaPlayerService, data, reply);
             pid_t pid = data.readInt32();