OMXCodec.h revision 5295c0c55d41a2906ea7f65a3f22e6278cb17d4b
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; 30 31struct OMXCodec : public MediaSource, 32 public MediaBufferObserver { 33 enum CreationFlags { 34 kPreferSoftwareCodecs = 1, 35 }; 36 static sp<MediaSource> Create( 37 const sp<IOMX> &omx, 38 const sp<MetaData> &meta, bool createEncoder, 39 const sp<MediaSource> &source, 40 const char *matchComponentName = NULL, 41 uint32_t flags = 0); 42 43 static void setComponentRole( 44 const sp<IOMX> &omx, IOMX::node_id node, bool isEncoder, 45 const char *mime); 46 47 virtual status_t start(MetaData *params = NULL); 48 virtual status_t stop(); 49 50 virtual sp<MetaData> getFormat(); 51 52 virtual status_t read( 53 MediaBuffer **buffer, const ReadOptions *options = NULL); 54 55 void on_message(const omx_message &msg); 56 57 // from MediaBufferObserver 58 virtual void signalBufferReturned(MediaBuffer *buffer); 59 60protected: 61 virtual ~OMXCodec(); 62 63private: 64 enum State { 65 DEAD, 66 LOADED, 67 LOADED_TO_IDLE, 68 IDLE_TO_EXECUTING, 69 EXECUTING, 70 EXECUTING_TO_IDLE, 71 IDLE_TO_LOADED, 72 RECONFIGURING, 73 ERROR 74 }; 75 76 enum { 77 kPortIndexInput = 0, 78 kPortIndexOutput = 1 79 }; 80 81 enum PortStatus { 82 ENABLED, 83 DISABLING, 84 DISABLED, 85 ENABLING, 86 SHUTTING_DOWN, 87 }; 88 89 enum Quirks { 90 kNeedsFlushBeforeDisable = 1, 91 kWantsNALFragments = 2, 92 kRequiresLoadedToIdleAfterAllocation = 4, 93 kRequiresAllocateBufferOnInputPorts = 8, 94 kRequiresFlushCompleteEmulation = 16, 95 kRequiresAllocateBufferOnOutputPorts = 32, 96 kRequiresFlushBeforeShutdown = 64, 97 kDefersOutputBufferAllocation = 128, 98 kDecoderLiesAboutNumberOfChannels = 256, 99 kInputBufferSizesAreBogus = 512, 100 }; 101 102 struct BufferInfo { 103 IOMX::buffer_id mBuffer; 104 bool mOwnedByComponent; 105 sp<IMemory> mMem; 106 size_t mSize; 107 void *mData; 108 MediaBuffer *mMediaBuffer; 109 }; 110 111 struct CodecSpecificData { 112 size_t mSize; 113 uint8_t mData[1]; 114 }; 115 116 sp<IOMX> mOMX; 117 bool mOMXLivesLocally; 118 IOMX::node_id mNode; 119 uint32_t mQuirks; 120 bool mIsEncoder; 121 char *mMIME; 122 char *mComponentName; 123 sp<MetaData> mOutputFormat; 124 sp<MediaSource> mSource; 125 Vector<CodecSpecificData *> mCodecSpecificData; 126 size_t mCodecSpecificDataIndex; 127 128 sp<MemoryDealer> mDealer[2]; 129 130 State mState; 131 Vector<BufferInfo> mPortBuffers[2]; 132 PortStatus mPortStatus[2]; 133 bool mInitialBufferSubmit; 134 bool mSignalledEOS; 135 status_t mFinalStatus; 136 bool mNoMoreOutputData; 137 bool mOutputPortSettingsHaveChanged; 138 int64_t mSeekTimeUs; 139 140 Mutex mLock; 141 Condition mAsyncCompletion; 142 143 // A list of indices into mPortStatus[kPortIndexOutput] filled with data. 144 List<size_t> mFilledBuffers; 145 Condition mBufferFilled; 146 147 OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, 148 bool isEncoder, const char *mime, const char *componentName, 149 const sp<MediaSource> &source); 150 151 void addCodecSpecificData(const void *data, size_t size); 152 void clearCodecSpecificData(); 153 154 void setComponentRole(); 155 156 void setAMRFormat(bool isWAMR); 157 void setAACFormat(int32_t numChannels, int32_t sampleRate); 158 159 status_t setVideoPortFormatType( 160 OMX_U32 portIndex, 161 OMX_VIDEO_CODINGTYPE compressionFormat, 162 OMX_COLOR_FORMATTYPE colorFormat); 163 164 void setVideoInputFormat( 165 const char *mime, OMX_U32 width, OMX_U32 height); 166 167 status_t setupMPEG4EncoderParameters(); 168 status_t setupAVCEncoderParameters(); 169 170 void setVideoOutputFormat( 171 const char *mime, OMX_U32 width, OMX_U32 height); 172 173 void setImageOutputFormat( 174 OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); 175 176 void setJPEGInputFormat( 177 OMX_U32 width, OMX_U32 height, OMX_U32 compressedSize); 178 179 void setMinBufferSize(OMX_U32 portIndex, OMX_U32 size); 180 181 void setRawAudioFormat( 182 OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels); 183 184 status_t allocateBuffers(); 185 status_t allocateBuffersOnPort(OMX_U32 portIndex); 186 187 status_t freeBuffersOnPort( 188 OMX_U32 portIndex, bool onlyThoseWeOwn = false); 189 190 void drainInputBuffer(IOMX::buffer_id buffer); 191 void fillOutputBuffer(IOMX::buffer_id buffer); 192 void drainInputBuffer(BufferInfo *info); 193 void fillOutputBuffer(BufferInfo *info); 194 195 void drainInputBuffers(); 196 void fillOutputBuffers(); 197 198 // Returns true iff a flush was initiated and a completion event is 199 // upcoming, false otherwise (A flush was not necessary as we own all 200 // the buffers on that port). 201 // This method will ONLY ever return false for a component with quirk 202 // "kRequiresFlushCompleteEmulation". 203 bool flushPortAsync(OMX_U32 portIndex); 204 205 void disablePortAsync(OMX_U32 portIndex); 206 void enablePortAsync(OMX_U32 portIndex); 207 208 static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); 209 static bool isIntermediateState(State state); 210 211 void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); 212 void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); 213 void onStateChange(OMX_STATETYPE newState); 214 void onPortSettingsChanged(OMX_U32 portIndex); 215 216 void setState(State newState); 217 218 status_t init(); 219 void initOutputFormat(const sp<MetaData> &inputFormat); 220 221 void dumpPortStatus(OMX_U32 portIndex); 222 223 static uint32_t getComponentQuirks(const char *componentName); 224 225 static void findMatchingCodecs( 226 const char *mime, 227 bool createEncoder, const char *matchComponentName, 228 uint32_t flags, 229 Vector<String8> *matchingCodecs); 230 231 OMXCodec(const OMXCodec &); 232 OMXCodec &operator=(const OMXCodec &); 233}; 234 235struct CodecProfileLevel { 236 OMX_U32 mProfile; 237 OMX_U32 mLevel; 238}; 239 240struct CodecCapabilities { 241 String8 mComponentName; 242 Vector<CodecProfileLevel> mProfileLevels; 243}; 244 245// Return a vector of componentNames with supported profile/level pairs 246// supporting the given mime type, if queryDecoders==true, returns components 247// that decode content of the given type, otherwise returns components 248// that encode content of the given type. 249// profile and level indications only make sense for h.263, mpeg4 and avc 250// video. 251// The profile/level values correspond to 252// OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE, 253// OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE 254// and OMX_VIDEO_AVCLEVELTYPE respectively. 255 256status_t QueryCodecs( 257 const sp<IOMX> &omx, 258 const char *mimeType, bool queryDecoders, 259 Vector<CodecCapabilities> *results); 260 261} // namespace android 262 263#endif // OMX_CODEC_H_ 264