Merge "Avoid inline->fullscreen reload for html5 video." into jb-dev

Author: Teng-Hui Zhu

core/java/android/webkit/HTML5VideoFullScreen.java

@@ -104,7 +104,9 @@ public void surfaceDestroyed(SurfaceHolder holder)
             // After we return from this we can't use the surface any more.
             // The current Video View will be destroy when we play a new video.
             pauseAndDispatch(mProxy);
+            // TODO: handle full screen->inline mode transition without a reload.
             mPlayer.release();
+            mPlayer = null;
             mSurfaceHolder = null;
             if (mMediaController != null) {
                 mMediaController.hide();
@@ -128,12 +130,12 @@ private SurfaceView getSurfaceView() {
         return mVideoSurfaceView;
     }
 
-    HTML5VideoFullScreen(Context context, int videoLayerId, int position) {
+    HTML5VideoFullScreen(Context context, int videoLayerId, int position, boolean skipPrepare) {
         mVideoSurfaceView = new VideoSurfaceView(context);
         mFullScreenMode = FULLSCREEN_OFF;
         mVideoWidth = 0;
         mVideoHeight = 0;
-        init(videoLayerId, position);
+        init(videoLayerId, position, skipPrepare);
     }
 
     private void setMediaController(MediaController m) {
@@ -156,8 +158,6 @@ public void decideDisplayMode() {
     }
 
     private void prepareForFullScreen() {
-        // So in full screen, we reset the MediaPlayer
-        mPlayer.reset();
         MediaController mc = new FullScreenMediaController(mProxy.getContext(), mLayout);
         mc.setSystemUiVisibility(mLayout.getSystemUiVisibility());
         setMediaController(mc);
@@ -243,7 +243,7 @@ public void onCustomViewHidden() {
 
                 // Don't show the controller after exiting the full screen.
                 mMediaController = null;
-                mCurrentState = STATE_RELEASED;
+                mCurrentState = STATE_RESETTED;
             }
         };
 

core/java/android/webkit/HTML5VideoInline.java

@@ -21,7 +21,7 @@ public class HTML5VideoInline extends HTML5VideoView{
     // associated with the surface texture can be used for showing the screen
     // shot when paused, so they are not singleton.
     private static SurfaceTexture mSurfaceTexture = null;
-    private int[] mTextureNames;
+    private static int[] mTextureNames = null;
     // Every time when the VideoLayer Id change, we need to recreate the
     // SurfaceTexture in order to delete the old video's decoder memory.
     private static int mVideoLayerUsingSurfaceTexture = -1;
@@ -35,8 +35,7 @@ public void start() {
     }
 
     HTML5VideoInline(int videoLayerId, int position) {
-        init(videoLayerId, position);
-        mTextureNames = null;
+        init(videoLayerId, position, false);
     }
 
     @Override
@@ -69,15 +68,14 @@ public void pauseAndDispatch(HTML5VideoViewProxy proxy) {
 
     // Inline Video specific FUNCTIONS:
 
-    @Override
-    public SurfaceTexture getSurfaceTexture(int videoLayerId) {
+    public static SurfaceTexture getSurfaceTexture(int videoLayerId) {
         // Create the surface texture.
         if (videoLayerId != mVideoLayerUsingSurfaceTexture
             || mSurfaceTexture == null
             || mTextureNames == null) {
-            if (mTextureNames != null) {
-                GLES20.glDeleteTextures(1, mTextureNames, 0);
-            }
+            // The GL texture will store in the VideoLayerManager at native side.
+            // They will be clean up when requested.
+            // The reason we recreated GL texture name is for screen shot support.
             mTextureNames = new int[1];
             GLES20.glGenTextures(1, mTextureNames, 0);
             mSurfaceTexture = new SurfaceTexture(mTextureNames[0]);

core/java/android/webkit/HTML5VideoView.java

@@ -31,11 +31,10 @@ public class HTML5VideoView implements MediaPlayer.OnPreparedListener {
     // NOTE: these values are in sync with VideoLayerAndroid.h in webkit side.
     // Please keep them in sync when changed.
     static final int STATE_INITIALIZED        = 0;
-    static final int STATE_NOTPREPARED        = 1;
+    static final int STATE_PREPARING          = 1;
     static final int STATE_PREPARED           = 2;
     static final int STATE_PLAYING            = 3;
-    static final int STATE_RELEASED           = 4;
-    protected int mCurrentState;
+    static final int STATE_RESETTED           = 4;
 
     protected HTML5VideoViewProxy mProxy;
 
@@ -46,11 +45,11 @@ public class HTML5VideoView implements MediaPlayer.OnPreparedListener {
     // This is used to find the VideoLayer on the native side.
     protected int mVideoLayerId;
 
-    // Every video will have one MediaPlayer. Given the fact we only have one
-    // SurfaceTexture, there is only one MediaPlayer in action. Every time we
-    // switch videos, a new instance of MediaPlayer will be created in reset().
-    // Switching between inline and full screen will also create a new instance.
-    protected MediaPlayer mPlayer;
+    // Given the fact we only have one SurfaceTexture, we cannot support multiple
+    // player at the same time. We may recreate a new one and abandon the old
+    // one at transition time.
+    protected static MediaPlayer mPlayer = null;
+    protected static int mCurrentState = -1;
 
     // We need to save such info.
     protected Uri mUri;
@@ -60,10 +59,12 @@ public class HTML5VideoView implements MediaPlayer.OnPreparedListener {
     // See http://www.whatwg.org/specs/web-apps/current-work/#event-media-timeupdate
     protected static Timer mTimer;
 
+    protected boolean mPauseDuringPreparing;
+
     // The spec says the timer should fire every 250 ms or less.
     private static final int TIMEUPDATE_PERIOD = 250;  // ms
+    private boolean mSkipPrepare = false;
 
-    protected boolean mPauseDuringPreparing;
     // common Video control FUNCTIONS:
     public void start() {
         if (mCurrentState == STATE_PREPARED) {
@@ -83,7 +84,7 @@ public void start() {
     public void pause() {
         if (isPlaying()) {
             mPlayer.pause();
-        } else if (mCurrentState == STATE_NOTPREPARED) {
+        } else if (mCurrentState == STATE_PREPARING) {
             mPauseDuringPreparing = true;
         }
         // Delete the Timer to stop it since there is no stop call.
@@ -124,11 +125,11 @@ public boolean isPlaying() {
         }
     }
 
-    public void release() {
-        if (mCurrentState != STATE_RELEASED) {
-            mPlayer.release();
+    public void reset() {
+        if (mCurrentState != STATE_RESETTED) {
+            mPlayer.reset();
         }
-        mCurrentState = STATE_RELEASED;
+        mCurrentState = STATE_RESETTED;
     }
 
     public void stopPlayback() {
@@ -142,9 +143,16 @@ public boolean getPauseDuringPreparing() {
     }
 
     // Every time we start a new Video, we create a VideoView and a MediaPlayer
-    public void init(int videoLayerId, int position) {
-        mPlayer = new MediaPlayer();
-        mCurrentState = STATE_INITIALIZED;
+    public void init(int videoLayerId, int position, boolean skipPrepare) {
+        if (mPlayer == null) {
+            mPlayer = new MediaPlayer();
+            mCurrentState = STATE_INITIALIZED;
+        }
+        mSkipPrepare = skipPrepare;
+        // If we want to skip the prepare, then we keep the state.
+        if (!mSkipPrepare) {
+            mCurrentState = STATE_INITIALIZED;
+        }
         mProxy = null;
         mVideoLayerId = videoLayerId;
         mSaveSeekTime = position;
@@ -195,17 +203,28 @@ public void setOnInfoListener(HTML5VideoViewProxy proxy) {
     }
 
     public void prepareDataCommon(HTML5VideoViewProxy proxy) {
-        try {
-            mPlayer.setDataSource(proxy.getContext(), mUri, mHeaders);
-            mPlayer.prepareAsync();
-        } catch (IllegalArgumentException e) {
-            e.printStackTrace();
-        } catch (IllegalStateException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
+        if (!mSkipPrepare) {
+            try {
+                mPlayer.reset();
+                mPlayer.setDataSource(proxy.getContext(), mUri, mHeaders);
+                mPlayer.prepareAsync();
+            } catch (IllegalArgumentException e) {
+                e.printStackTrace();
+            } catch (IllegalStateException e) {
+                e.printStackTrace();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            mCurrentState = STATE_PREPARING;
+        } else {
+            // If we skip prepare and the onPrepared happened in inline mode, we
+            // don't need to call prepare again, we just need to call onPrepared
+            // to refresh the state here.
+            if (mCurrentState >= STATE_PREPARED) {
+                onPrepared(mPlayer);
+            }
+            mSkipPrepare = false;
         }
-        mCurrentState = STATE_NOTPREPARED;
     }
 
     public void reprepareData(HTML5VideoViewProxy proxy) {
@@ -294,10 +313,6 @@ public boolean getReadyToUseSurfTex() {
         return false;
     }
 
-    public SurfaceTexture getSurfaceTexture(int videoLayerId) {
-        return null;
-    }
-
     public void deleteSurfaceTexture() {
     }
 
@@ -332,14 +347,14 @@ public boolean fullScreenExited() {
         return false;
     }
 
-    private boolean m_startWhenPrepared = false;
+    private boolean mStartWhenPrepared = false;
 
     public void setStartWhenPrepared(boolean willPlay) {
-        m_startWhenPrepared  = willPlay;
+        mStartWhenPrepared  = willPlay;
     }
 
     public boolean getStartWhenPrepared() {
-        return m_startWhenPrepared;
+        return mStartWhenPrepared;
     }
 
 }

core/java/android/webkit/HTML5VideoViewProxy.java

@@ -112,13 +112,14 @@ public static void setBaseLayer(int layer) {
                 mBaseLayer = layer;
 
                 int currentVideoLayerId = mHTML5VideoView.getVideoLayerId();
-                SurfaceTexture surfTexture = mHTML5VideoView.getSurfaceTexture(currentVideoLayerId);
+                SurfaceTexture surfTexture =
+                        HTML5VideoInline.getSurfaceTexture(currentVideoLayerId);
                 int textureName = mHTML5VideoView.getTextureName();
 
                 if (layer != 0 && surfTexture != null && currentVideoLayerId != -1) {
                     int playerState = mHTML5VideoView.getCurrentState();
                     if (mHTML5VideoView.getPlayerBuffering())
-                        playerState = HTML5VideoView.STATE_NOTPREPARED;
+                        playerState = HTML5VideoView.STATE_PREPARING;
                     boolean foundInTree = nativeSendSurfaceTexture(surfTexture,
                             layer, currentVideoLayerId, textureName,
                             playerState);
@@ -145,6 +146,7 @@ public static void enterFullScreenVideo(int layerId, String url,
                 HTML5VideoViewProxy proxy, WebViewClassic webView) {
                 // Save the inline video info and inherit it in the full screen
                 int savePosition = 0;
+                boolean canSkipPrepare = false;
                 if (mHTML5VideoView != null) {
                     // We don't allow enter full screen mode while the previous
                     // full screen video hasn't finished yet.
@@ -156,15 +158,20 @@ public static void enterFullScreenVideo(int layerId, String url,
                     // save the current position.
                     if (layerId == mHTML5VideoView.getVideoLayerId()) {
                         savePosition = mHTML5VideoView.getCurrentPosition();
+                        int playerState = mHTML5VideoView.getCurrentState();
+                        canSkipPrepare = (playerState == HTML5VideoView.STATE_PREPARING
+                                || playerState == HTML5VideoView.STATE_PREPARED
+                                || playerState == HTML5VideoView.STATE_PLAYING)
+                                && !mHTML5VideoView.isFullScreenMode();
+                    }
+                    if (!canSkipPrepare) {
+                        mHTML5VideoView.reset();
                     }
-                    mHTML5VideoView.release();
                 }
                 mHTML5VideoView = new HTML5VideoFullScreen(proxy.getContext(),
-                        layerId, savePosition);
+                        layerId, savePosition, canSkipPrepare);
                 mCurrentProxy = proxy;
-
                 mHTML5VideoView.setVideoURI(url, mCurrentProxy);
-
                 mHTML5VideoView.enterFullScreenVideoState(layerId, proxy, webView);
         }
 
@@ -217,8 +224,7 @@ public static void play(String url, int time, HTML5VideoViewProxy proxy,
                     if (!backFromFullScreenMode) {
                         mHTML5VideoView.pauseAndDispatch(mCurrentProxy);
                     }
-                    // release the media player to avoid finalize error
-                    mHTML5VideoView.release();
+                    mHTML5VideoView.reset();
                 }
                 mCurrentProxy = proxy;
                 mHTML5VideoView = new HTML5VideoInline(videoLayerId, time);