OMXCodec.h revision 299766cdbf93fba14634e364b177b7f4d5811453
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 26namespace android { 27 28class MemoryDealer; 29struct OMXCodecObserver; 30struct CodecProfileLevel; 31 32struct OMXCodec : public MediaSource, 33 public MediaBufferObserver { 34 enum CreationFlags { 35 kPreferSoftwareCodecs = 1, 36 }; 37 static sp<MediaSource> Create( 38 const sp<IOMX> &omx, 39 const sp<MetaData> &meta, bool createEncoder, 40 const sp<MediaSource> &source, 41 const char *matchComponentName = NULL, 42 uint32_t flags = 0); 43 44 static void setComponentRole( 45 const sp<IOMX> &omx, IOMX::node_id node, bool isEncoder, 46 const char *mime); 47 48 virtual status_t start(MetaData *params = NULL); 49 virtual status_t stop(); 50 51 virtual sp<MetaData> getFormat(); 52 53 virtual status_t read( 54 MediaBuffer **buffer, const ReadOptions *options = NULL); 55 56 virtual status_t pause(); 57 58 void on_message(const omx_message &msg); 59 60 // from MediaBufferObserver 61 virtual void signalBufferReturned(MediaBuffer *buffer); 62 63protected: 64 virtual ~OMXCodec(); 65 66private: 67 enum State { 68 DEAD, 69 LOADED, 70 LOADED_TO_IDLE, 71 IDLE_TO_EXECUTING, 72 EXECUTING, 73 EXECUTING_TO_IDLE, 74 IDLE_TO_LOADED, 75 RECONFIGURING, 76 ERROR 77 }; 78 79 enum { 80 kPortIndexInput = 0, 81 kPortIndexOutput = 1 82 }; 83 84 enum PortStatus { 85 ENABLED, 86 DISABLING, 87 DISABLED, 88 ENABLING, 89 SHUTTING_DOWN, 90 }; 91 92 enum Quirks { 93 kNeedsFlushBeforeDisable = 1, 94 kWantsNALFragments = 2, 95 kRequiresLoadedToIdleAfterAllocation = 4, 96 kRequiresAllocateBufferOnInputPorts = 8, 97 kRequiresFlushCompleteEmulation = 16, 98 kRequiresAllocateBufferOnOutputPorts = 32, 99 kRequiresFlushBeforeShutdown = 64, 100 kDefersOutputBufferAllocation = 128, 101 kDecoderLiesAboutNumberOfChannels = 256, 102 kInputBufferSizesAreBogus = 512, 103 kSupportsMultipleFramesPerInputBuffer = 1024, 104 kAvoidMemcopyInputRecordingFrames = 2048, 105 }; 106 107 struct BufferInfo { 108 IOMX::buffer_id mBuffer; 109 bool mOwnedByComponent; 110 sp<IMemory> mMem; 111 size_t mSize; 112 void *mData; 113 MediaBuffer *mMediaBuffer; 114 }; 115 116 struct CodecSpecificData { 117 size_t mSize; 118 uint8_t mData[1]; 119 }; 120 121 sp<IOMX> mOMX; 122 bool mOMXLivesLocally; 123 IOMX::node_id mNode; 124 uint32_t mQuirks; 125 bool mIsEncoder; 126 char *mMIME; 127 char *mComponentName; 128 sp<MetaData> mOutputFormat; 129 sp<MediaSource> mSource; 130 Vector<CodecSpecificData *> mCodecSpecificData; 131 size_t mCodecSpecificDataIndex; 132 133 sp<MemoryDealer> mDealer[2]; 134 135 State mState; 136 Vector<BufferInfo> mPortBuffers[2]; 137 PortStatus mPortStatus[2]; 138 bool mInitialBufferSubmit; 139 bool mSignalledEOS; 140 status_t mFinalStatus; 141 bool mNoMoreOutputData; 142 bool mOutputPortSettingsHaveChanged; 143 int64_t mSeekTimeUs; 144 ReadOptions::SeekMode mSeekMode; 145 int64_t mTargetTimeUs; 146 int64_t mSkipTimeUs; 147 148 MediaBuffer *mLeftOverBuffer; 149 150 Mutex mLock; 151 Condition mAsyncCompletion; 152 153 bool mPaused; 154 155 // A list of indices into mPortStatus[kPortIndexOutput] filled with data. 156 List<size_t> mFilledBuffers; 157 Condition mBufferFilled; 158 159 OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, 160 bool isEncoder, const char *mime, const char *componentName, 161 const sp<MediaSource> &source); 162 163 void addCodecSpecificData(const void *data, size_t size); 164 void clearCodecSpecificData(); 165 166 void setComponentRole(); 167 168 void setAMRFormat(bool isWAMR, int32_t bitRate); 169 void setAACFormat(int32_t numChannels, int32_t sampleRate, int32_t bitRate); 170 171 status_t setVideoPortFormatType( 172 OMX_U32 portIndex, 173 OMX_VIDEO_CODINGTYPE compressionFormat, 174 OMX_COLOR_FORMATTYPE colorFormat); 175 176 void setVideoInputFormat( 177 const char *mime, const sp<MetaData>& meta); 178 179 status_t setupBitRate(int32_t bitRate); 180 status_t setupErrorCorrectionParameters(); 181 status_t setupH263EncoderParameters(const sp<MetaData>& meta); 182 status_t setupMPEG4EncoderParameters(const sp<MetaData>& meta); 183 status_t setupAVCEncoderParameters(const sp<MetaData>& meta); 184 status_t findTargetColorFormat( 185 const sp<MetaData>& meta, OMX_COLOR_FORMATTYPE *colorFormat); 186 187 status_t isColorFormatSupported( 188 OMX_COLOR_FORMATTYPE colorFormat, int portIndex); 189 190 // If profile/level is set in the meta data, its value in the meta 191 // data will be used; otherwise, the default value will be used. 192 status_t getVideoProfileLevel(const sp<MetaData>& meta, 193 const CodecProfileLevel& defaultProfileLevel, 194 CodecProfileLevel& profileLevel); 195 196 status_t setVideoOutputFormat( 197 const char *mime, OMX_U32 width, OMX_U32 height); 198 199 void setImageOutputFormat( 200 OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); 201 202 void setJPEGInputFormat( 203 OMX_U32 width, OMX_U32 height, OMX_U32 compressedSize); 204 205 void setMinBufferSize(OMX_U32 portIndex, OMX_U32 size); 206 207 void setRawAudioFormat( 208 OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels); 209 210 status_t allocateBuffers(); 211 status_t allocateBuffersOnPort(OMX_U32 portIndex); 212 213 status_t freeBuffersOnPort( 214 OMX_U32 portIndex, bool onlyThoseWeOwn = false); 215 216 void drainInputBuffer(IOMX::buffer_id buffer); 217 void fillOutputBuffer(IOMX::buffer_id buffer); 218 void drainInputBuffer(BufferInfo *info); 219 void fillOutputBuffer(BufferInfo *info); 220 221 void drainInputBuffers(); 222 void fillOutputBuffers(); 223 224 // Returns true iff a flush was initiated and a completion event is 225 // upcoming, false otherwise (A flush was not necessary as we own all 226 // the buffers on that port). 227 // This method will ONLY ever return false for a component with quirk 228 // "kRequiresFlushCompleteEmulation". 229 bool flushPortAsync(OMX_U32 portIndex); 230 231 void disablePortAsync(OMX_U32 portIndex); 232 void enablePortAsync(OMX_U32 portIndex); 233 234 static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); 235 static bool isIntermediateState(State state); 236 237 void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); 238 void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); 239 void onStateChange(OMX_STATETYPE newState); 240 void onPortSettingsChanged(OMX_U32 portIndex); 241 242 void setState(State newState); 243 244 status_t init(); 245 void initOutputFormat(const sp<MetaData> &inputFormat); 246 247 void dumpPortStatus(OMX_U32 portIndex); 248 249 status_t configureCodec(const sp<MetaData> &meta); 250 251 static uint32_t getComponentQuirks(const char *componentName); 252 253 static void findMatchingCodecs( 254 const char *mime, 255 bool createEncoder, const char *matchComponentName, 256 uint32_t flags, 257 Vector<String8> *matchingCodecs); 258 259 OMXCodec(const OMXCodec &); 260 OMXCodec &operator=(const OMXCodec &); 261}; 262 263struct CodecProfileLevel { 264 OMX_U32 mProfile; 265 OMX_U32 mLevel; 266}; 267 268struct CodecCapabilities { 269 String8 mComponentName; 270 Vector<CodecProfileLevel> mProfileLevels; 271}; 272 273// Return a vector of componentNames with supported profile/level pairs 274// supporting the given mime type, if queryDecoders==true, returns components 275// that decode content of the given type, otherwise returns components 276// that encode content of the given type. 277// profile and level indications only make sense for h.263, mpeg4 and avc 278// video. 279// The profile/level values correspond to 280// OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE, 281// OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE 282// and OMX_VIDEO_AVCLEVELTYPE respectively. 283 284status_t QueryCodecs( 285 const sp<IOMX> &omx, 286 const char *mimeType, bool queryDecoders, 287 Vector<CodecCapabilities> *results); 288 289} // namespace android 290 291#endif // OMX_CODEC_H_ 292