1 /* 2 * Copyright (C) 2009 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 OMX_CODEC_H_ 18 19 #define OMX_CODEC_H_ 20 21 #include <media/IOMX.h> 22 #include <media/stagefright/MediaBuffer.h> 23 #include <media/stagefright/MediaSource.h> 24 #include <utils/threads.h> 25 26 namespace android { 27 28 class MemoryDealer; 29 struct OMXCodecObserver; 30 struct CodecProfileLevel; 31 32 struct OMXCodec : public MediaSource, 33 public MediaBufferObserver { 34 enum CreationFlags { 35 kPreferSoftwareCodecs = 1, 36 kIgnoreCodecSpecificData = 2, 37 38 // The client wants to access the output buffer's video 39 // data for example for thumbnail extraction. 40 kClientNeedsFramebuffer = 4, 41 }; 42 static sp<MediaSource> Create( 43 const sp<IOMX> &omx, 44 const sp<MetaData> &meta, bool createEncoder, 45 const sp<MediaSource> &source, 46 const char *matchComponentName = NULL, 47 uint32_t flags = 0); 48 49 static void setComponentRole( 50 const sp<IOMX> &omx, IOMX::node_id node, bool isEncoder, 51 const char *mime); 52 53 virtual status_t start(MetaData *params = NULL); 54 virtual status_t stop(); 55 56 virtual sp<MetaData> getFormat(); 57 58 virtual status_t read( 59 MediaBuffer **buffer, const ReadOptions *options = NULL); 60 61 virtual status_t pause(); 62 63 void on_message(const omx_message &msg); 64 65 // from MediaBufferObserver 66 virtual void signalBufferReturned(MediaBuffer *buffer); 67 68 protected: 69 virtual ~OMXCodec(); 70 71 private: 72 enum State { 73 DEAD, 74 LOADED, 75 LOADED_TO_IDLE, 76 IDLE_TO_EXECUTING, 77 EXECUTING, 78 EXECUTING_TO_IDLE, 79 IDLE_TO_LOADED, 80 RECONFIGURING, 81 ERROR 82 }; 83 84 enum { 85 kPortIndexInput = 0, 86 kPortIndexOutput = 1 87 }; 88 89 enum PortStatus { 90 ENABLED, 91 DISABLING, 92 DISABLED, 93 ENABLING, 94 SHUTTING_DOWN, 95 }; 96 97 enum Quirks { 98 kNeedsFlushBeforeDisable = 1, 99 kWantsNALFragments = 2, 100 kRequiresLoadedToIdleAfterAllocation = 4, 101 kRequiresAllocateBufferOnInputPorts = 8, 102 kRequiresFlushCompleteEmulation = 16, 103 kRequiresAllocateBufferOnOutputPorts = 32, 104 kRequiresFlushBeforeShutdown = 64, 105 kDefersOutputBufferAllocation = 128, 106 kDecoderLiesAboutNumberOfChannels = 256, 107 kInputBufferSizesAreBogus = 512, 108 kSupportsMultipleFramesPerInputBuffer = 1024, 109 kAvoidMemcopyInputRecordingFrames = 2048, 110 kRequiresLargerEncoderOutputBuffer = 4096, 111 kOutputBuffersAreUnreadable = 8192, 112 kStoreMetaDataInInputVideoBuffers = 16384, 113 }; 114 115 struct BufferInfo { 116 IOMX::buffer_id mBuffer; 117 bool mOwnedByComponent; 118 sp<IMemory> mMem; 119 size_t mSize; 120 void *mData; 121 MediaBuffer *mMediaBuffer; 122 }; 123 124 struct CodecSpecificData { 125 size_t mSize; 126 uint8_t mData[1]; 127 }; 128 129 sp<IOMX> mOMX; 130 bool mOMXLivesLocally; 131 IOMX::node_id mNode; 132 uint32_t mQuirks; 133 bool mIsEncoder; 134 char *mMIME; 135 char *mComponentName; 136 sp<MetaData> mOutputFormat; 137 sp<MediaSource> mSource; 138 Vector<CodecSpecificData *> mCodecSpecificData; 139 size_t mCodecSpecificDataIndex; 140 141 sp<MemoryDealer> mDealer[2]; 142 143 State mState; 144 Vector<BufferInfo> mPortBuffers[2]; 145 PortStatus mPortStatus[2]; 146 bool mInitialBufferSubmit; 147 bool mSignalledEOS; 148 status_t mFinalStatus; 149 bool mNoMoreOutputData; 150 bool mOutputPortSettingsHaveChanged; 151 int64_t mSeekTimeUs; 152 ReadOptions::SeekMode mSeekMode; 153 int64_t mTargetTimeUs; 154 int64_t mSkipTimeUs; 155 156 MediaBuffer *mLeftOverBuffer; 157 158 Mutex mLock; 159 Condition mAsyncCompletion; 160 161 bool mPaused; 162 163 // A list of indices into mPortStatus[kPortIndexOutput] filled with data. 164 List<size_t> mFilledBuffers; 165 Condition mBufferFilled; 166 167 OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, 168 bool isEncoder, const char *mime, const char *componentName, 169 const sp<MediaSource> &source); 170 171 void addCodecSpecificData(const void *data, size_t size); 172 void clearCodecSpecificData(); 173 174 void setComponentRole(); 175 176 void setAMRFormat(bool isWAMR, int32_t bitRate); 177 void setAACFormat(int32_t numChannels, int32_t sampleRate, int32_t bitRate); 178 179 status_t setVideoPortFormatType( 180 OMX_U32 portIndex, 181 OMX_VIDEO_CODINGTYPE compressionFormat, 182 OMX_COLOR_FORMATTYPE colorFormat); 183 184 void setVideoInputFormat( 185 const char *mime, const sp<MetaData>& meta); 186 187 status_t setupBitRate(int32_t bitRate); 188 status_t setupErrorCorrectionParameters(); 189 status_t setupH263EncoderParameters(const sp<MetaData>& meta); 190 status_t setupMPEG4EncoderParameters(const sp<MetaData>& meta); 191 status_t setupAVCEncoderParameters(const sp<MetaData>& meta); 192 status_t findTargetColorFormat( 193 const sp<MetaData>& meta, OMX_COLOR_FORMATTYPE *colorFormat); 194 195 status_t isColorFormatSupported( 196 OMX_COLOR_FORMATTYPE colorFormat, int portIndex); 197 198 // If profile/level is set in the meta data, its value in the meta 199 // data will be used; otherwise, the default value will be used. 200 status_t getVideoProfileLevel(const sp<MetaData>& meta, 201 const CodecProfileLevel& defaultProfileLevel, 202 CodecProfileLevel& profileLevel); 203 204 status_t setVideoOutputFormat( 205 const char *mime, OMX_U32 width, OMX_U32 height); 206 207 void setImageOutputFormat( 208 OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); 209 210 void setJPEGInputFormat( 211 OMX_U32 width, OMX_U32 height, OMX_U32 compressedSize); 212 213 void setMinBufferSize(OMX_U32 portIndex, OMX_U32 size); 214 215 void setRawAudioFormat( 216 OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels); 217 218 status_t allocateBuffers(); 219 status_t allocateBuffersOnPort(OMX_U32 portIndex); 220 221 status_t freeBuffersOnPort( 222 OMX_U32 portIndex, bool onlyThoseWeOwn = false); 223 224 void drainInputBuffer(IOMX::buffer_id buffer); 225 void fillOutputBuffer(IOMX::buffer_id buffer); 226 void drainInputBuffer(BufferInfo *info); 227 void fillOutputBuffer(BufferInfo *info); 228 229 void drainInputBuffers(); 230 void fillOutputBuffers(); 231 232 // Returns true iff a flush was initiated and a completion event is 233 // upcoming, false otherwise (A flush was not necessary as we own all 234 // the buffers on that port). 235 // This method will ONLY ever return false for a component with quirk 236 // "kRequiresFlushCompleteEmulation". 237 bool flushPortAsync(OMX_U32 portIndex); 238 239 void disablePortAsync(OMX_U32 portIndex); 240 void enablePortAsync(OMX_U32 portIndex); 241 242 static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); 243 static bool isIntermediateState(State state); 244 245 void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); 246 void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); 247 void onStateChange(OMX_STATETYPE newState); 248 void onPortSettingsChanged(OMX_U32 portIndex); 249 250 void setState(State newState); 251 252 status_t init(); 253 void initOutputFormat(const sp<MetaData> &inputFormat); 254 255 void dumpPortStatus(OMX_U32 portIndex); 256 257 status_t configureCodec(const sp<MetaData> &meta, uint32_t flags); 258 259 static uint32_t getComponentQuirks( 260 const char *componentName, bool isEncoder); 261 262 static void findMatchingCodecs( 263 const char *mime, 264 bool createEncoder, const char *matchComponentName, 265 uint32_t flags, 266 Vector<String8> *matchingCodecs); 267 268 OMXCodec(const OMXCodec &); 269 OMXCodec &operator=(const OMXCodec &); 270 }; 271 272 struct CodecProfileLevel { 273 OMX_U32 mProfile; 274 OMX_U32 mLevel; 275 }; 276 277 struct CodecCapabilities { 278 String8 mComponentName; 279 Vector<CodecProfileLevel> mProfileLevels; 280 }; 281 282 // Return a vector of componentNames with supported profile/level pairs 283 // supporting the given mime type, if queryDecoders==true, returns components 284 // that decode content of the given type, otherwise returns components 285 // that encode content of the given type. 286 // profile and level indications only make sense for h.263, mpeg4 and avc 287 // video. 288 // The profile/level values correspond to 289 // OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE, 290 // OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE 291 // and OMX_VIDEO_AVCLEVELTYPE respectively. 292 293 status_t QueryCodecs( 294 const sp<IOMX> &omx, 295 const char *mimeType, bool queryDecoders, 296 Vector<CodecCapabilities> *results); 297 298 } // namespace android 299 300 #endif // OMX_CODEC_H_ 301
