Use AudioTrack::event_type not int in callback

Change-Id: I09ff321f9457c0a9ee58e59bee38ed53799e494b
diff --git a/libvideoeditor/lvpp/AudioPlayerBase.cpp b/libvideoeditor/lvpp/AudioPlayerBase.cpp
index 26c6a63..eac45b1 100644
--- a/libvideoeditor/lvpp/AudioPlayerBase.cpp
+++ b/libvideoeditor/lvpp/AudioPlayerBase.cpp
@@ -243,7 +243,7 @@
 }
 
 // static
-void AudioPlayerBase::AudioCallback(int event, void *user, void *info) {
+void AudioPlayerBase::AudioCallback(AudioTrack::event_type event, void *user, void *info) {
     static_cast<AudioPlayerBase *>(user)->AudioCallback(event, info);
 }
 
@@ -269,7 +269,7 @@
     return me->fillBuffer(buffer, size);
 }
 
-void AudioPlayerBase::AudioCallback(int event, void *info) {
+void AudioPlayerBase::AudioCallback(AudioTrack::event_type event, void *info) {
     if (event != AudioTrack::EVENT_MORE_DATA) {
         return;
     }