1 /* 2 * Copyright 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 #ifndef MEDIA_CODEC_H_ 18 19 #define MEDIA_CODEC_H_ 20 21 #include <gui/IGraphicBufferProducer.h> 22 #include <media/hardware/CryptoAPI.h> 23 #include <media/MediaResource.h> 24 #include <media/stagefright/foundation/AHandler.h> 25 #include <media/stagefright/FrameRenderTracker.h> 26 #include <utils/Vector.h> 27 28 namespace android { 29 30 struct ABuffer; 31 struct AMessage; 32 struct AReplyToken; 33 struct AString; 34 struct CodecBase; 35 struct IBatteryStats; 36 struct ICrypto; 37 class IMemory; 38 struct MemoryDealer; 39 class IResourceManagerClient; 40 class IResourceManagerService; 41 struct PersistentSurface; 42 struct SoftwareRenderer; 43 struct Surface; 44 45 struct MediaCodec : public AHandler { 46 enum ConfigureFlags { 47 CONFIGURE_FLAG_ENCODE = 1, 48 }; 49 50 enum BufferFlags { 51 BUFFER_FLAG_SYNCFRAME = 1, 52 BUFFER_FLAG_CODECCONFIG = 2, 53 BUFFER_FLAG_EOS = 4, 54 }; 55 56 enum { 57 CB_INPUT_AVAILABLE = 1, 58 CB_OUTPUT_AVAILABLE = 2, 59 CB_ERROR = 3, 60 CB_OUTPUT_FORMAT_CHANGED = 4, 61 CB_RESOURCE_RECLAIMED = 5, 62 }; 63 64 static const pid_t kNoPid = -1; 65 66 static sp<MediaCodec> CreateByType( 67 const sp<ALooper> &looper, const char *mime, bool encoder, status_t *err = NULL, 68 pid_t pid = kNoPid); 69 70 static sp<MediaCodec> CreateByComponentName( 71 const sp<ALooper> &looper, const char *name, status_t *err = NULL, 72 pid_t pid = kNoPid); 73 74 static sp<PersistentSurface> CreatePersistentInputSurface(); 75 76 status_t configure( 77 const sp<AMessage> &format, 78 const sp<Surface> &nativeWindow, 79 const sp<ICrypto> &crypto, 80 uint32_t flags); 81 82 status_t setCallback(const sp<AMessage> &callback); 83 84 status_t setOnFrameRenderedNotification(const sp<AMessage> ¬ify); 85 86 status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer); 87 88 status_t setInputSurface(const sp<PersistentSurface> &surface); 89 90 status_t start(); 91 92 // Returns to a state in which the component remains allocated but 93 // unconfigured. 94 status_t stop(); 95 96 // Resets the codec to the INITIALIZED state. Can be called after an error 97 // has occured to make the codec usable. 98 status_t reset(); 99 100 // Client MUST call release before releasing final reference to this 101 // object. 102 status_t release(); 103 104 status_t flush(); 105 106 status_t queueInputBuffer( 107 size_t index, 108 size_t offset, 109 size_t size, 110 int64_t presentationTimeUs, 111 uint32_t flags, 112 AString *errorDetailMsg = NULL); 113 114 status_t queueSecureInputBuffer( 115 size_t index, 116 size_t offset, 117 const CryptoPlugin::SubSample *subSamples, 118 size_t numSubSamples, 119 const uint8_t key[16], 120 const uint8_t iv[16], 121 CryptoPlugin::Mode mode, 122 int64_t presentationTimeUs, 123 uint32_t flags, 124 AString *errorDetailMsg = NULL); 125 126 status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs = 0ll); 127 128 status_t dequeueOutputBuffer( 129 size_t *index, 130 size_t *offset, 131 size_t *size, 132 int64_t *presentationTimeUs, 133 uint32_t *flags, 134 int64_t timeoutUs = 0ll); 135 136 status_t renderOutputBufferAndRelease(size_t index, int64_t timestampNs); 137 status_t renderOutputBufferAndRelease(size_t index); 138 status_t releaseOutputBuffer(size_t index); 139 140 status_t signalEndOfInputStream(); 141 142 status_t getOutputFormat(sp<AMessage> *format) const; 143 status_t getInputFormat(sp<AMessage> *format) const; 144 145 status_t getWidevineLegacyBuffers(Vector<sp<ABuffer> > *buffers) const; 146 147 status_t getInputBuffers(Vector<sp<ABuffer> > *buffers) const; 148 status_t getOutputBuffers(Vector<sp<ABuffer> > *buffers) const; 149 150 status_t getOutputBuffer(size_t index, sp<ABuffer> *buffer); 151 status_t getOutputFormat(size_t index, sp<AMessage> *format); 152 status_t getInputBuffer(size_t index, sp<ABuffer> *buffer); 153 154 status_t setSurface(const sp<Surface> &nativeWindow); 155 156 status_t requestIDRFrame(); 157 158 // Notification will be posted once there "is something to do", i.e. 159 // an input/output buffer has become available, a format change is 160 // pending, an error is pending. 161 void requestActivityNotification(const sp<AMessage> ¬ify); 162 163 status_t getName(AString *componentName) const; 164 165 status_t setParameters(const sp<AMessage> ¶ms); 166 167 // Create a MediaCodec notification message from a list of rendered or dropped render infos 168 // by adding rendered frame information to a base notification message. Returns the number 169 // of frames that were rendered. 170 static size_t CreateFramesRenderedMessage( 171 std::list<FrameRenderTracker::Info> done, sp<AMessage> &msg); 172 173 protected: 174 virtual ~MediaCodec(); 175 virtual void onMessageReceived(const sp<AMessage> &msg); 176 177 private: 178 // used by ResourceManagerClient 179 status_t reclaim(); 180 friend struct ResourceManagerClient; 181 182 private: 183 enum State { 184 UNINITIALIZED, 185 INITIALIZING, 186 INITIALIZED, 187 CONFIGURING, 188 CONFIGURED, 189 STARTING, 190 STARTED, 191 FLUSHING, 192 FLUSHED, 193 STOPPING, 194 RELEASING, 195 }; 196 197 enum { 198 kPortIndexInput = 0, 199 kPortIndexOutput = 1, 200 }; 201 202 enum { 203 kWhatInit = 'init', 204 kWhatConfigure = 'conf', 205 kWhatSetSurface = 'sSur', 206 kWhatCreateInputSurface = 'cisf', 207 kWhatSetInputSurface = 'sisf', 208 kWhatStart = 'strt', 209 kWhatStop = 'stop', 210 kWhatRelease = 'rele', 211 kWhatDequeueInputBuffer = 'deqI', 212 kWhatQueueInputBuffer = 'queI', 213 kWhatDequeueOutputBuffer = 'deqO', 214 kWhatReleaseOutputBuffer = 'relO', 215 kWhatSignalEndOfInputStream = 'eois', 216 kWhatGetBuffers = 'getB', 217 kWhatFlush = 'flus', 218 kWhatGetOutputFormat = 'getO', 219 kWhatGetInputFormat = 'getI', 220 kWhatDequeueInputTimedOut = 'dITO', 221 kWhatDequeueOutputTimedOut = 'dOTO', 222 kWhatCodecNotify = 'codc', 223 kWhatRequestIDRFrame = 'ridr', 224 kWhatRequestActivityNotification = 'racN', 225 kWhatGetName = 'getN', 226 kWhatSetParameters = 'setP', 227 kWhatSetCallback = 'setC', 228 kWhatSetNotification = 'setN', 229 }; 230 231 enum { 232 kFlagUsesSoftwareRenderer = 1, 233 kFlagOutputFormatChanged = 2, 234 kFlagOutputBuffersChanged = 4, 235 kFlagStickyError = 8, 236 kFlagDequeueInputPending = 16, 237 kFlagDequeueOutputPending = 32, 238 kFlagIsSecure = 64, 239 kFlagSawMediaServerDie = 128, 240 kFlagIsEncoder = 256, 241 kFlagGatherCodecSpecificData = 512, 242 kFlagIsAsync = 1024, 243 kFlagIsComponentAllocated = 2048, 244 kFlagPushBlankBuffersOnShutdown = 4096, 245 }; 246 247 struct BufferInfo { 248 uint32_t mBufferID; 249 sp<ABuffer> mData; 250 sp<ABuffer> mEncryptedData; 251 sp<IMemory> mSharedEncryptedBuffer; 252 sp<AMessage> mNotify; 253 sp<AMessage> mFormat; 254 bool mOwnedByClient; 255 }; 256 257 struct ResourceManagerServiceProxy : public IBinder::DeathRecipient { 258 ResourceManagerServiceProxy(pid_t pid); 259 ~ResourceManagerServiceProxy(); 260 261 void init(); 262 263 // implements DeathRecipient 264 virtual void binderDied(const wp<IBinder>& /*who*/); 265 266 void addResource( 267 int64_t clientId, 268 const sp<IResourceManagerClient> client, 269 const Vector<MediaResource> &resources); 270 271 void removeResource(int64_t clientId); 272 273 bool reclaimResource(const Vector<MediaResource> &resources); 274 275 private: 276 Mutex mLock; 277 sp<IResourceManagerService> mService; 278 pid_t mPid; 279 }; 280 281 State mState; 282 bool mReleasedByResourceManager; 283 sp<ALooper> mLooper; 284 sp<ALooper> mCodecLooper; 285 sp<CodecBase> mCodec; 286 AString mComponentName; 287 sp<AReplyToken> mReplyID; 288 uint32_t mFlags; 289 status_t mStickyError; 290 sp<Surface> mSurface; 291 SoftwareRenderer *mSoftRenderer; 292 293 sp<AMessage> mOutputFormat; 294 sp<AMessage> mInputFormat; 295 sp<AMessage> mCallback; 296 sp<AMessage> mOnFrameRenderedNotification; 297 sp<MemoryDealer> mDealer; 298 299 sp<IResourceManagerClient> mResourceManagerClient; 300 sp<ResourceManagerServiceProxy> mResourceManagerService; 301 302 bool mBatteryStatNotified; 303 bool mIsVideo; 304 int32_t mVideoWidth; 305 int32_t mVideoHeight; 306 int32_t mRotationDegrees; 307 308 // initial create parameters 309 AString mInitName; 310 bool mInitNameIsType; 311 bool mInitIsEncoder; 312 313 // configure parameter 314 sp<AMessage> mConfigureMsg; 315 316 // Used only to synchronize asynchronous getBufferAndFormat 317 // across all the other (synchronous) buffer state change 318 // operations, such as de/queueIn/OutputBuffer, start and 319 // stop/flush/reset/release. 320 Mutex mBufferLock; 321 322 List<size_t> mAvailPortBuffers[2]; 323 Vector<BufferInfo> mPortBuffers[2]; 324 325 int32_t mDequeueInputTimeoutGeneration; 326 sp<AReplyToken> mDequeueInputReplyID; 327 328 int32_t mDequeueOutputTimeoutGeneration; 329 sp<AReplyToken> mDequeueOutputReplyID; 330 331 sp<ICrypto> mCrypto; 332 333 List<sp<ABuffer> > mCSD; 334 335 sp<AMessage> mActivityNotify; 336 337 bool mHaveInputSurface; 338 bool mHavePendingInputBuffers; 339 340 MediaCodec(const sp<ALooper> &looper, pid_t pid); 341 342 static status_t PostAndAwaitResponse( 343 const sp<AMessage> &msg, sp<AMessage> *response); 344 345 void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err); 346 347 status_t init(const AString &name, bool nameIsType, bool encoder); 348 349 void setState(State newState); 350 void returnBuffersToCodec(); 351 void returnBuffersToCodecOnPort(int32_t portIndex); 352 size_t updateBuffers(int32_t portIndex, const sp<AMessage> &msg); 353 status_t onQueueInputBuffer(const sp<AMessage> &msg); 354 status_t onReleaseOutputBuffer(const sp<AMessage> &msg); 355 ssize_t dequeuePortBuffer(int32_t portIndex); 356 357 status_t getBufferAndFormat( 358 size_t portIndex, size_t index, 359 sp<ABuffer> *buffer, sp<AMessage> *format); 360 361 bool handleDequeueInputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false); 362 bool handleDequeueOutputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false); 363 void cancelPendingDequeueOperations(); 364 365 void extractCSD(const sp<AMessage> &format); 366 status_t queueCSDInputBuffer(size_t bufferIndex); 367 368 status_t handleSetSurface(const sp<Surface> &surface); 369 status_t connectToSurface(const sp<Surface> &surface); 370 status_t disconnectFromSurface(); 371 372 void postActivityNotificationIfPossible(); 373 374 void onInputBufferAvailable(); 375 void onOutputBufferAvailable(); 376 void onError(status_t err, int32_t actionCode, const char *detail = NULL); 377 void onOutputFormatChanged(); 378 379 status_t onSetParameters(const sp<AMessage> ¶ms); 380 381 status_t amendOutputFormatWithCodecSpecificData(const sp<ABuffer> &buffer); 382 void updateBatteryStat(); 383 bool isExecuting() const; 384 385 uint64_t getGraphicBufferSize(); 386 void addResource(const String8 &type, const String8 &subtype, uint64_t value); 387 388 /* called to get the last codec error when the sticky flag is set. 389 * if no such codec error is found, returns UNKNOWN_ERROR. 390 */ 391 inline status_t getStickyError() const { 392 return mStickyError != 0 ? mStickyError : UNKNOWN_ERROR; 393 } 394 395 inline void setStickyError(status_t err) { 396 mFlags |= kFlagStickyError; 397 mStickyError = err; 398 } 399 400 DISALLOW_EVIL_CONSTRUCTORS(MediaCodec); 401 }; 402 403 } // namespace android 404 405 #endif // MEDIA_CODEC_H_ 406
