Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 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 com.android.systemui.screenrecord; |
| 18 | |
| 19 | import static android.content.Context.MEDIA_PROJECTION_SERVICE; |
| 20 | |
| 21 | import static com.android.systemui.screenrecord.ScreenRecordingAudioSource.INTERNAL; |
| 22 | import static com.android.systemui.screenrecord.ScreenRecordingAudioSource.MIC; |
| 23 | import static com.android.systemui.screenrecord.ScreenRecordingAudioSource.MIC_AND_INTERNAL; |
| 24 | |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 25 | import android.annotation.Nullable; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 26 | import android.content.ContentResolver; |
| 27 | import android.content.ContentValues; |
| 28 | import android.content.Context; |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 29 | import android.graphics.Bitmap; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 30 | import android.hardware.display.DisplayManager; |
| 31 | import android.hardware.display.VirtualDisplay; |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 32 | import android.media.MediaCodecInfo; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 33 | import android.media.MediaMuxer; |
| 34 | import android.media.MediaRecorder; |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 35 | import android.media.ThumbnailUtils; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 36 | import android.media.projection.IMediaProjection; |
| 37 | import android.media.projection.IMediaProjectionManager; |
| 38 | import android.media.projection.MediaProjection; |
| 39 | import android.media.projection.MediaProjectionManager; |
| 40 | import android.net.Uri; |
| 41 | import android.os.IBinder; |
| 42 | import android.os.RemoteException; |
| 43 | import android.os.ServiceManager; |
| 44 | import android.provider.MediaStore; |
| 45 | import android.util.DisplayMetrics; |
| 46 | import android.util.Log; |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 47 | import android.util.Size; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 48 | import android.view.Surface; |
| 49 | import android.view.WindowManager; |
| 50 | |
| 51 | import java.io.File; |
| 52 | import java.io.IOException; |
| 53 | import java.io.OutputStream; |
| 54 | import java.nio.file.Files; |
| 55 | import java.text.SimpleDateFormat; |
| 56 | import java.util.Date; |
| 57 | |
| 58 | /** |
| 59 | * Recording screen and mic/internal audio |
| 60 | */ |
| 61 | public class ScreenMediaRecorder { |
| 62 | private static final int TOTAL_NUM_TRACKS = 1; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 63 | private static final int VIDEO_FRAME_RATE = 30; |
Jay Aliomer | 246a25e | 2020-05-26 22:57:34 -0400 | [diff] [blame] | 64 | private static final int VIDEO_FRAME_RATE_TO_RESOLUTION_RATIO = 6; |
| 65 | private static final int AUDIO_BIT_RATE = 196000; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 66 | private static final int AUDIO_SAMPLE_RATE = 44100; |
| 67 | private static final int MAX_DURATION_MS = 60 * 60 * 1000; |
| 68 | private static final long MAX_FILESIZE_BYTES = 5000000000L; |
| 69 | private static final String TAG = "ScreenMediaRecorder"; |
| 70 | |
| 71 | |
| 72 | private File mTempVideoFile; |
| 73 | private File mTempAudioFile; |
| 74 | private MediaProjection mMediaProjection; |
| 75 | private Surface mInputSurface; |
| 76 | private VirtualDisplay mVirtualDisplay; |
| 77 | private MediaRecorder mMediaRecorder; |
| 78 | private int mUser; |
| 79 | private ScreenRecordingMuxer mMuxer; |
| 80 | private ScreenInternalAudioRecorder mAudio; |
| 81 | private ScreenRecordingAudioSource mAudioSource; |
| 82 | |
| 83 | private Context mContext; |
| 84 | MediaRecorder.OnInfoListener mListener; |
| 85 | |
| 86 | public ScreenMediaRecorder(Context context, |
| 87 | int user, ScreenRecordingAudioSource audioSource, |
| 88 | MediaRecorder.OnInfoListener listener) { |
| 89 | mContext = context; |
| 90 | mUser = user; |
| 91 | mListener = listener; |
| 92 | mAudioSource = audioSource; |
| 93 | } |
| 94 | |
| 95 | private void prepare() throws IOException, RemoteException { |
| 96 | //Setup media projection |
| 97 | IBinder b = ServiceManager.getService(MEDIA_PROJECTION_SERVICE); |
| 98 | IMediaProjectionManager mediaService = |
| 99 | IMediaProjectionManager.Stub.asInterface(b); |
| 100 | IMediaProjection proj = null; |
| 101 | proj = mediaService.createProjection(mUser, mContext.getPackageName(), |
| 102 | MediaProjectionManager.TYPE_SCREEN_CAPTURE, false); |
| 103 | IBinder projection = proj.asBinder(); |
| 104 | mMediaProjection = new MediaProjection(mContext, |
| 105 | IMediaProjection.Stub.asInterface(projection)); |
| 106 | |
| 107 | File cacheDir = mContext.getCacheDir(); |
| 108 | cacheDir.mkdirs(); |
| 109 | mTempVideoFile = File.createTempFile("temp", ".mp4", cacheDir); |
| 110 | |
| 111 | // Set up media recorder |
| 112 | mMediaRecorder = new MediaRecorder(); |
| 113 | |
| 114 | // Set up audio source |
| 115 | if (mAudioSource == MIC) { |
Jay Aliomer | 246a25e | 2020-05-26 22:57:34 -0400 | [diff] [blame] | 116 | mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT); |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 117 | } |
| 118 | mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE); |
| 119 | |
| 120 | mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); |
| 121 | |
| 122 | |
| 123 | // Set up video |
| 124 | DisplayMetrics metrics = new DisplayMetrics(); |
| 125 | WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); |
| 126 | wm.getDefaultDisplay().getRealMetrics(metrics); |
| 127 | int screenWidth = metrics.widthPixels; |
| 128 | int screenHeight = metrics.heightPixels; |
Jay Aliomer | 246a25e | 2020-05-26 22:57:34 -0400 | [diff] [blame] | 129 | int refereshRate = (int) wm.getDefaultDisplay().getRefreshRate(); |
| 130 | int vidBitRate = screenHeight * screenWidth * refereshRate / VIDEO_FRAME_RATE |
| 131 | * VIDEO_FRAME_RATE_TO_RESOLUTION_RATIO; |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 132 | mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264); |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 133 | mMediaRecorder.setVideoEncodingProfileLevel( |
| 134 | MediaCodecInfo.CodecProfileLevel.AVCProfileHigh, |
| 135 | MediaCodecInfo.CodecProfileLevel.AVCLevel42); |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 136 | mMediaRecorder.setVideoSize(screenWidth, screenHeight); |
Jay Aliomer | 246a25e | 2020-05-26 22:57:34 -0400 | [diff] [blame] | 137 | mMediaRecorder.setVideoFrameRate(refereshRate); |
| 138 | mMediaRecorder.setVideoEncodingBitRate(vidBitRate); |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 139 | mMediaRecorder.setMaxDuration(MAX_DURATION_MS); |
| 140 | mMediaRecorder.setMaxFileSize(MAX_FILESIZE_BYTES); |
| 141 | |
| 142 | // Set up audio |
| 143 | if (mAudioSource == MIC) { |
| 144 | mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.HE_AAC); |
| 145 | mMediaRecorder.setAudioChannels(TOTAL_NUM_TRACKS); |
| 146 | mMediaRecorder.setAudioEncodingBitRate(AUDIO_BIT_RATE); |
| 147 | mMediaRecorder.setAudioSamplingRate(AUDIO_SAMPLE_RATE); |
| 148 | } |
| 149 | |
| 150 | mMediaRecorder.setOutputFile(mTempVideoFile); |
| 151 | mMediaRecorder.prepare(); |
| 152 | // Create surface |
| 153 | mInputSurface = mMediaRecorder.getSurface(); |
| 154 | mVirtualDisplay = mMediaProjection.createVirtualDisplay( |
| 155 | "Recording Display", |
| 156 | screenWidth, |
| 157 | screenHeight, |
| 158 | metrics.densityDpi, |
| 159 | DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, |
| 160 | mInputSurface, |
| 161 | null, |
| 162 | null); |
| 163 | |
| 164 | mMediaRecorder.setOnInfoListener(mListener); |
| 165 | if (mAudioSource == INTERNAL || |
| 166 | mAudioSource == MIC_AND_INTERNAL) { |
| 167 | mTempAudioFile = File.createTempFile("temp", ".aac", |
| 168 | mContext.getCacheDir()); |
| 169 | mAudio = new ScreenInternalAudioRecorder(mTempAudioFile.getAbsolutePath(), mContext, |
| 170 | mMediaProjection, mAudioSource == MIC_AND_INTERNAL); |
| 171 | } |
| 172 | |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Start screen recording |
| 177 | */ |
| 178 | void start() throws IOException, RemoteException { |
| 179 | Log.d(TAG, "start recording"); |
| 180 | prepare(); |
| 181 | mMediaRecorder.start(); |
| 182 | recordInternalAudio(); |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * End screen recording |
| 187 | */ |
| 188 | void end() { |
| 189 | mMediaRecorder.stop(); |
| 190 | mMediaProjection.stop(); |
| 191 | mMediaRecorder.release(); |
| 192 | mMediaRecorder = null; |
| 193 | mMediaProjection = null; |
| 194 | mInputSurface.release(); |
| 195 | mVirtualDisplay.release(); |
| 196 | stopInternalAudioRecording(); |
| 197 | |
| 198 | Log.d(TAG, "end recording"); |
| 199 | } |
| 200 | |
| 201 | private void stopInternalAudioRecording() { |
| 202 | if (mAudioSource == INTERNAL || mAudioSource == MIC_AND_INTERNAL) { |
| 203 | mAudio.end(); |
| 204 | mAudio = null; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | private void recordInternalAudio() { |
| 209 | if (mAudioSource == INTERNAL || mAudioSource == MIC_AND_INTERNAL) { |
| 210 | mAudio.start(); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * Store recorded video |
| 216 | */ |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 217 | protected SavedRecording save() throws IOException { |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 218 | String fileName = new SimpleDateFormat("'screen-'yyyyMMdd-HHmmss'.mp4'") |
| 219 | .format(new Date()); |
| 220 | |
| 221 | ContentValues values = new ContentValues(); |
| 222 | values.put(MediaStore.Video.Media.DISPLAY_NAME, fileName); |
| 223 | values.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4"); |
| 224 | values.put(MediaStore.Video.Media.DATE_ADDED, System.currentTimeMillis()); |
| 225 | values.put(MediaStore.Video.Media.DATE_TAKEN, System.currentTimeMillis()); |
| 226 | |
| 227 | ContentResolver resolver = mContext.getContentResolver(); |
| 228 | Uri collectionUri = MediaStore.Video.Media.getContentUri( |
| 229 | MediaStore.VOLUME_EXTERNAL_PRIMARY); |
| 230 | Uri itemUri = resolver.insert(collectionUri, values); |
| 231 | |
| 232 | Log.d(TAG, itemUri.toString()); |
| 233 | if (mAudioSource == MIC_AND_INTERNAL || mAudioSource == INTERNAL) { |
| 234 | try { |
| 235 | Log.d(TAG, "muxing recording"); |
| 236 | File file = File.createTempFile("temp", ".mp4", |
| 237 | mContext.getCacheDir()); |
| 238 | mMuxer = new ScreenRecordingMuxer(MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4, |
| 239 | file.getAbsolutePath(), |
| 240 | mTempVideoFile.getAbsolutePath(), |
| 241 | mTempAudioFile.getAbsolutePath()); |
| 242 | mMuxer.mux(); |
| 243 | mTempVideoFile.delete(); |
| 244 | mTempVideoFile = file; |
| 245 | } catch (IOException e) { |
| 246 | Log.e(TAG, "muxing recording " + e.getMessage()); |
| 247 | e.printStackTrace(); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | // Add to the mediastore |
| 252 | OutputStream os = resolver.openOutputStream(itemUri, "w"); |
| 253 | Files.copy(mTempVideoFile.toPath(), os); |
| 254 | os.close(); |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 255 | if (mTempAudioFile != null) mTempAudioFile.delete(); |
Jay Aliomer | 57e2aa4 | 2020-06-04 15:28:09 -0400 | [diff] [blame] | 256 | DisplayMetrics metrics = mContext.getResources().getDisplayMetrics(); |
| 257 | Size size = new Size(metrics.widthPixels, metrics.heightPixels); |
| 258 | SavedRecording recording = new SavedRecording(itemUri, mTempVideoFile, size); |
| 259 | mTempVideoFile.delete(); |
| 260 | return recording; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Object representing the recording |
| 265 | */ |
| 266 | public class SavedRecording { |
| 267 | |
| 268 | private Uri mUri; |
| 269 | private Bitmap mThumbnailBitmap; |
| 270 | |
| 271 | protected SavedRecording(Uri uri, File file, Size thumbnailSize) { |
| 272 | mUri = uri; |
| 273 | try { |
| 274 | mThumbnailBitmap = ThumbnailUtils.createVideoThumbnail( |
| 275 | file, thumbnailSize, null); |
| 276 | } catch (IOException e) { |
| 277 | Log.e(TAG, "Error creating thumbnail", e); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | public Uri getUri() { |
| 282 | return mUri; |
| 283 | } |
| 284 | |
| 285 | public @Nullable Bitmap getThumbnail() { |
| 286 | return mThumbnailBitmap; |
| 287 | } |
Jay Aliomer | 0bd491a | 2020-03-16 14:34:10 -0400 | [diff] [blame] | 288 | } |
| 289 | } |