1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.webkit; 18 19 import android.Manifest.permission; 20 import android.content.pm.PackageManager; 21 import android.graphics.SurfaceTexture; 22 import android.webkit.HTML5VideoView; 23 import android.webkit.HTML5VideoViewProxy; 24 import android.view.Surface; 25 import android.opengl.GLES20; 26 import android.os.PowerManager; 27 28 /** 29 * @hide This is only used by the browser 30 */ 31 public class HTML5VideoInline extends HTML5VideoView{ 32 33 // Due to the fact that the decoder consume a lot of memory, we make the 34 // surface texture as singleton. But the GL texture (m_textureNames) 35 // associated with the surface texture can be used for showing the screen 36 // shot when paused, so they are not singleton. 37 private static SurfaceTexture mSurfaceTexture = null; 38 private static int[] mTextureNames = null; 39 // Every time when the VideoLayer Id change, we need to recreate the 40 // SurfaceTexture in order to delete the old video's decoder memory. 41 private static int mVideoLayerUsingSurfaceTexture = -1; 42 43 // Video control FUNCTIONS: 44 @Override start()45 public void start() { 46 if (!getPauseDuringPreparing()) { 47 super.start(); 48 } 49 } 50 HTML5VideoInline(int videoLayerId, int position, boolean skipPrepare)51 HTML5VideoInline(int videoLayerId, int position, boolean skipPrepare) { 52 init(videoLayerId, position, skipPrepare); 53 } 54 55 @Override decideDisplayMode()56 public void decideDisplayMode() { 57 SurfaceTexture surfaceTexture = getSurfaceTexture(getVideoLayerId()); 58 Surface surface = new Surface(surfaceTexture); 59 mPlayer.setSurface(surface); 60 surface.release(); 61 } 62 63 // Normally called immediately after setVideoURI. But for full screen, 64 // this should be after surface holder created 65 @Override prepareDataAndDisplayMode(HTML5VideoViewProxy proxy)66 public void prepareDataAndDisplayMode(HTML5VideoViewProxy proxy) { 67 super.prepareDataAndDisplayMode(proxy); 68 setFrameAvailableListener(proxy); 69 // TODO: This is a workaround, after b/5375681 fixed, we should switch 70 // to the better way. 71 if (mProxy.getContext().checkCallingOrSelfPermission(permission.WAKE_LOCK) 72 == PackageManager.PERMISSION_GRANTED) { 73 mPlayer.setWakeMode(proxy.getContext(), PowerManager.FULL_WAKE_LOCK); 74 } 75 } 76 77 // Pause the play and update the play/pause button 78 @Override pauseAndDispatch(HTML5VideoViewProxy proxy)79 public void pauseAndDispatch(HTML5VideoViewProxy proxy) { 80 super.pauseAndDispatch(proxy); 81 } 82 83 // Inline Video specific FUNCTIONS: 84 getSurfaceTexture(int videoLayerId)85 public static SurfaceTexture getSurfaceTexture(int videoLayerId) { 86 // Create the surface texture. 87 if (videoLayerId != mVideoLayerUsingSurfaceTexture 88 || mSurfaceTexture == null 89 || mTextureNames == null) { 90 // The GL texture will store in the VideoLayerManager at native side. 91 // They will be clean up when requested. 92 // The reason we recreated GL texture name is for screen shot support. 93 mTextureNames = new int[1]; 94 GLES20.glGenTextures(1, mTextureNames, 0); 95 mSurfaceTexture = new SurfaceTexture(mTextureNames[0]); 96 } 97 mVideoLayerUsingSurfaceTexture = videoLayerId; 98 return mSurfaceTexture; 99 } 100 surfaceTextureDeleted()101 public static boolean surfaceTextureDeleted() { 102 return (mSurfaceTexture == null); 103 } 104 105 @Override deleteSurfaceTexture()106 public void deleteSurfaceTexture() { 107 cleanupSurfaceTexture(); 108 return; 109 } 110 cleanupSurfaceTexture()111 public static void cleanupSurfaceTexture() { 112 mSurfaceTexture = null; 113 mVideoLayerUsingSurfaceTexture = -1; 114 return; 115 } 116 117 @Override getTextureName()118 public int getTextureName() { 119 if (mTextureNames != null) { 120 return mTextureNames[0]; 121 } else { 122 return 0; 123 } 124 } 125 setFrameAvailableListener(SurfaceTexture.OnFrameAvailableListener l)126 private void setFrameAvailableListener(SurfaceTexture.OnFrameAvailableListener l) { 127 if (mSurfaceTexture != null) { 128 mSurfaceTexture.setOnFrameAvailableListener(l); 129 } 130 } 131 132 } 133