commit 9816016afb2a13c6a866cd047d57020566a8b9a9
author Wei Jia <wjia@google.com> Wed Feb 04 17:01:11 2015 -0800
committer Wei Jia <wjia@google.com> Tue Feb 24 16:34:11 2015 -0800
tree 176a616a7d5da21447e880158cef57516efee9c3
parent 658fc18d8e632441cd5d83a4f74b53620cbac1fe

mediaplayer: support dynamic playback rate

Bug: 19196501

Change-Id: I856b1507d5fa2cedfb645706d2435683a7d3e050

media/libmedia/IMediaPlayer.cpp

diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 7f3e5cc..dcd5670 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -39,6 +39,7 @@
     START,
     STOP,
     IS_PLAYING,
+    SET_PLAYBACK_RATE,
     PAUSE,
     SEEK_TO,
     GET_CURRENT_POSITION,
@@ -164,6 +165,15 @@
         return reply.readInt32();
     }
 
+    status_t setPlaybackRate(float rate)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        data.writeFloat(rate);
+        remote()->transact(SET_PLAYBACK_RATE, data, &reply);
+        return reply.readInt32();
+    }
+
     status_t pause()
     {
         Parcel data, reply;
@@ -426,6 +436,11 @@
             reply->writeInt32(ret);
             return NO_ERROR;
         } break;
+        case SET_PLAYBACK_RATE: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            reply->writeInt32(setPlaybackRate(data.readFloat()));
+            return NO_ERROR;
+        } break;
         case PAUSE: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
             reply->writeInt32(pause());