OMXCodec.h revision 145bfe5eb3e08c9689c28f6bf3287a979438b04b
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; 144 145 MediaBuffer *mLeftOverBuffer; 146 147 Mutex mLock; 148 Condition mAsyncCompletion; 149 150 bool mPaused; 151 152 // A list of indices into mPortStatus[kPortIndexOutput] filled with data. 153 List<size_t> mFilledBuffers; 154 Condition mBufferFilled; 155 156 OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, 157 bool isEncoder, const char *mime, const char *componentName, 158 const sp<MediaSource> &source); 159 160 void addCodecSpecificData(const void *data, size_t size); 161 void clearCodecSpecificData(); 162 163 void setComponentRole(); 164 165 void setAMRFormat(bool isWAMR, int32_t bitRate); 166 void setAACFormat(int32_t numChannels, int32_t sampleRate, int32_t bitRate); 167 168 status_t setVideoPortFormatType( 169 OMX_U32 portIndex, 170 OMX_VIDEO_CODINGTYPE compressionFormat, 171 OMX_COLOR_FORMATTYPE colorFormat); 172 173 void setVideoInputFormat( 174 const char *mime, const sp<MetaData>& meta); 175 176 status_t setupBitRate(int32_t bitRate); 177 status_t setupErrorCorrectionParameters(); 178 status_t setupH263EncoderParameters(const sp<MetaData>& meta); 179 status_t setupMPEG4EncoderParameters(const sp<MetaData>& meta); 180 status_t setupAVCEncoderParameters(const sp<MetaData>& meta); 181 182 // If profile/level is set in the meta data, its value in the meta 183 // data will be used; otherwise, the default value will be used. 184 status_t getVideoProfileLevel(const sp<MetaData>& meta, 185 const CodecProfileLevel& defaultProfileLevel, 186 CodecProfileLevel& profileLevel); 187 188 status_t setVideoOutputFormat( 189 const char *mime, OMX_U32 width, OMX_U32 height); 190 191 void setImageOutputFormat( 192 OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); 193 194 void setJPEGInputFormat( 195 OMX_U32 width, OMX_U32 height, OMX_U32 compressedSize); 196 197 void setMinBufferSize(OMX_U32 portIndex, OMX_U32 size); 198 199 void setRawAudioFormat( 200 OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels); 201 202 status_t allocateBuffers(); 203 status_t allocateBuffersOnPort(OMX_U32 portIndex); 204 205 status_t freeBuffersOnPort( 206 OMX_U32 portIndex, bool onlyThoseWeOwn = false); 207 208 void drainInputBuffer(IOMX::buffer_id buffer); 209 void fillOutputBuffer(IOMX::buffer_id buffer); 210 void drainInputBuffer(BufferInfo *info); 211 void fillOutputBuffer(BufferInfo *info); 212 213 void drainInputBuffers(); 214 void fillOutputBuffers(); 215 216 // Returns true iff a flush was initiated and a completion event is 217 // upcoming, false otherwise (A flush was not necessary as we own all 218 // the buffers on that port). 219 // This method will ONLY ever return false for a component with quirk 220 // "kRequiresFlushCompleteEmulation". 221 bool flushPortAsync(OMX_U32 portIndex); 222 223 void disablePortAsync(OMX_U32 portIndex); 224 void enablePortAsync(OMX_U32 portIndex); 225 226 static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); 227 static bool isIntermediateState(State state); 228 229 void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); 230 void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); 231 void onStateChange(OMX_STATETYPE newState); 232 void onPortSettingsChanged(OMX_U32 portIndex); 233 234 void setState(State newState); 235 236 status_t init(); 237 void initOutputFormat(const sp<MetaData> &inputFormat); 238 239 void dumpPortStatus(OMX_U32 portIndex); 240 241 status_t configureCodec(const sp<MetaData> &meta); 242 243 static uint32_t getComponentQuirks(const char *componentName); 244 245 static void findMatchingCodecs( 246 const char *mime, 247 bool createEncoder, const char *matchComponentName, 248 uint32_t flags, 249 Vector<String8> *matchingCodecs); 250 251 OMXCodec(const OMXCodec &); 252 OMXCodec &operator=(const OMXCodec &); 253}; 254 255struct CodecProfileLevel { 256 OMX_U32 mProfile; 257 OMX_U32 mLevel; 258}; 259 260struct CodecCapabilities { 261 String8 mComponentName; 262 Vector<CodecProfileLevel> mProfileLevels; 263}; 264 265// Return a vector of componentNames with supported profile/level pairs 266// supporting the given mime type, if queryDecoders==true, returns components 267// that decode content of the given type, otherwise returns components 268// that encode content of the given type. 269// profile and level indications only make sense for h.263, mpeg4 and avc 270// video. 271// The profile/level values correspond to 272// OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE, 273// OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE 274// and OMX_VIDEO_AVCLEVELTYPE respectively. 275 276status_t QueryCodecs( 277 const sp<IOMX> &omx, 278 const char *mimeType, bool queryDecoders, 279 Vector<CodecCapabilities> *results); 280 281} // namespace android 282 283#endif // OMX_CODEC_H_ 284