Clean up VideoEditorPreviewController class part one:

o moved local types inside the class to avoid external exposure
o use non-virtual destructor since it is not meant to be a base class
o removed unused header files and moved some of the header files to .cpp file from .h file
o replaced #define constants with local enums

Change-Id: Ib321fc8c0379955083bc892c2ef93ed58c6c2ff5
diff --git a/libvideoeditor/lvpp/VideoEditorPreviewController.h b/libvideoeditor/lvpp/VideoEditorPreviewController.h
index b4537ec..1756f32 100755
--- a/libvideoeditor/lvpp/VideoEditorPreviewController.h
+++ b/libvideoeditor/lvpp/VideoEditorPreviewController.h
@@ -17,87 +17,78 @@
 #ifndef ANDROID_VE_PREVIEWCONTROLLER_H
 #define ANDROID_VE_PREVIEWCONTROLLER_H
 
-#include <utils/Log.h>
 #include "VideoEditorPlayer.h"
-#include "VideoEditorAudioPlayer.h"
-#include "M4OSA_Semaphore.h"
-#include "M4OSA_Thread.h"
-#include "M4OSA_Clock.h"
-#include "M4OSA_Time.h"
-#include "M4xVSS_API.h"
-#include "M4xVSS_Internal.h"
-#include "M4VFL_transition.h"
 #include "VideoEditorTools.h"
-#include "VideoEditorThumbnailMain.h"
-#include "VideoEditorMain.h"
-
-#include "OMX_IVCommon.h"
-#include "mediaplayer.h"
-#include <surfaceflinger/Surface.h>
-#include <surfaceflinger/ISurface.h>
-#include <surfaceflinger/ISurfaceComposer.h>
-#include <surfaceflinger/SurfaceComposerClient.h>
-#include <media/stagefright/MediaBuffer.h>
-#include "PreviewRenderer.h"
-
-
-#define NBPLAYER_INSTANCES 2
 
 namespace android {
 
-typedef enum {
-    VePlayerIdle=0,
-    VePlayerBusy,
-    VePlayerAutoStop
-} VePlayerState;
-
-typedef enum {
-    OVERLAY_UPDATE = 0,
-    OVERLAY_CLEAR
-} OverlayState;
-
 // Callback mechanism from PreviewController to Jni  */
 typedef void (*jni_progress_callback_fct)(void* cookie, M4OSA_UInt32 msgType, void *argc);
 
+struct Surface;
+struct PreviewRenderer;
 
 class VideoEditorPreviewController {
 
 public:
     VideoEditorPreviewController();
-    virtual ~VideoEditorPreviewController();
+    ~VideoEditorPreviewController();
 
-    M4OSA_ERR loadEditSettings(M4VSS3GPP_EditSettings* pSettings,
-        M4xVSS_AudioMixingSettings* bgmSettings);
+    M4OSA_ERR loadEditSettings(
+            M4VSS3GPP_EditSettings* pSettings,
+            M4xVSS_AudioMixingSettings* bgmSettings);
 
-    M4OSA_ERR setSurface(const sp<Surface> &surface);
+    M4OSA_ERR setSurface(const sp<Surface>& surface);
 
-    M4OSA_ERR startPreview(M4OSA_UInt32 fromMS, M4OSA_Int32 toMs,
-        M4OSA_UInt16 callBackAfterFrameCount, M4OSA_Bool loop) ;
+    M4OSA_ERR startPreview(
+            M4OSA_UInt32 fromMS, M4OSA_Int32 toMs,
+            M4OSA_UInt16 callBackAfterFrameCount,
+            M4OSA_Bool loop) ;
 
     M4OSA_UInt32 stopPreview();
 
-    M4OSA_ERR renderPreviewFrame(const sp<Surface> &surface,
-        VideoEditor_renderPreviewFrameStr* pFrameInfo,
-        VideoEditorCurretEditInfo *pCurrEditInfo);
+    M4OSA_ERR renderPreviewFrame(
+            const sp<Surface>& surface,
+            VideoEditor_renderPreviewFrameStr* pFrameInfo,
+            VideoEditorCurretEditInfo *pCurrEditInfo);
 
-    M4OSA_ERR clearSurface(const sp<Surface> &surface,
-     VideoEditor_renderPreviewFrameStr* pFrameInfo);
+    M4OSA_ERR clearSurface(
+            const sp<Surface>& surface,
+            VideoEditor_renderPreviewFrameStr* pFrameInfo);
 
-    M4OSA_Void setJniCallback(void* cookie,
-        jni_progress_callback_fct callbackFct);
+    M4OSA_Void setJniCallback(
+            void* cookie,
+            jni_progress_callback_fct callbackFct);
 
-    status_t setPreviewFrameRenderingMode(M4xVSS_MediaRendering mode,
-        M4VIDEOEDITING_VideoFrameSize outputVideoSize);
+    status_t setPreviewFrameRenderingMode(
+            M4xVSS_MediaRendering mode,
+            M4VIDEOEDITING_VideoFrameSize outputVideoSize);
 
 private:
-    sp<VideoEditorPlayer> mVePlayer[NBPLAYER_INSTANCES];
-    int mCurrentPlayer; //Instance of the player currently being used
+    enum {
+        kTotalNumPlayerInstances = 2,
+        kPreviewThreadStackSize = 65536,
+    };
+
+    typedef enum {
+        VePlayerIdle = 0,
+        VePlayerBusy,
+        VePlayerAutoStop
+    } PlayerState;
+
+    typedef enum {
+        OVERLAY_UPDATE = 0,
+        OVERLAY_CLEAR
+    } OverlayState;
+
+    sp<VideoEditorPlayer> mVePlayer[kTotalNumPlayerInstances];
+    int mCurrentPlayer;  // player instance currently being used
     sp<Surface>  mSurface;
     mutable Mutex mLock;
     M4OSA_Context mThreadContext;
-    VePlayerState mPlayerState;
+    PlayerState mPlayerState;
     M4OSA_Bool    mPrepareReqest;
-    M4VSS3GPP_ClipSettings **mClipList; //Pointer to an array of clip settings
+    M4VSS3GPP_ClipSettings **mClipList;
     M4OSA_UInt32 mNumberClipsInStoryBoard;
     M4OSA_UInt32 mNumberClipsToPreview;
     M4OSA_UInt32 mStartingClipIndex;
@@ -137,24 +128,30 @@
     M4VIFI_UInt8*  mFrameRGBBuffer;
     M4VIFI_UInt8*  mFrameYUVBuffer;
     mutable Mutex mLockSem;
+
+
     static M4OSA_ERR preparePlayer(void* param, int playerInstance, int index);
     static M4OSA_ERR threadProc(M4OSA_Void* param);
     static void notify(void* cookie, int msg, int ext1, int ext2);
 
     void setVideoEffectType(M4VSS3GPP_VideoEffectType type, M4OSA_Bool enable);
 
-    M4OSA_ERR applyVideoEffect(M4OSA_Void * dataPtr, M4OSA_UInt32 colorFormat,
-     M4OSA_UInt32 videoWidth, M4OSA_UInt32 videoHeight,
-     M4OSA_UInt32 timeMs, M4OSA_Void* outPtr);
+    M4OSA_ERR applyVideoEffect(
+            M4OSA_Void * dataPtr, M4OSA_UInt32 colorFormat,
+            M4OSA_UInt32 videoWidth, M4OSA_UInt32 videoHeight,
+            M4OSA_UInt32 timeMs, M4OSA_Void* outPtr);
 
-    M4OSA_ERR doImageRenderingMode(M4OSA_Void * dataPtr,
-     M4OSA_UInt32 colorFormat, M4OSA_UInt32 videoWidth,
-     M4OSA_UInt32 videoHeight, M4OSA_Void* outPtr);
+    M4OSA_ERR doImageRenderingMode(
+            M4OSA_Void * dataPtr,
+            M4OSA_UInt32 colorFormat, M4OSA_UInt32 videoWidth,
+            M4OSA_UInt32 videoHeight, M4OSA_Void* outPtr);
 
+    // Don't call me!
     VideoEditorPreviewController(const VideoEditorPreviewController &);
-    VideoEditorPreviewController &operator=(const VideoEditorPreviewController &);
+    VideoEditorPreviewController &operator=(
+            const VideoEditorPreviewController &);
 };
 
 }
 
-#endif //ANDROID_VE_PREVIEWCONTROLLER_H
+#endif // ANDROID_VE_PREVIEWCONTROLLER_H