OMXCodec.h revision ba229b3faa98b3bb6567cf95040062be2d9c2b3f
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<OMXCodec> 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 }; 98 99 struct BufferInfo { 100 IOMX::buffer_id mBuffer; 101 bool mOwnedByComponent; 102 sp<IMemory> mMem; 103 MediaBuffer *mMediaBuffer; 104 }; 105 106 struct CodecSpecificData { 107 size_t mSize; 108 uint8_t mData[1]; 109 }; 110 111 sp<IOMX> mOMX; 112 IOMX::node_id mNode; 113 uint32_t mQuirks; 114 bool mIsEncoder; 115 char *mMIME; 116 char *mComponentName; 117 sp<MetaData> mOutputFormat; 118 sp<MediaSource> mSource; 119 Vector<CodecSpecificData *> mCodecSpecificData; 120 size_t mCodecSpecificDataIndex; 121 122 sp<MemoryDealer> mDealer[2]; 123 124 State mState; 125 Vector<BufferInfo> mPortBuffers[2]; 126 PortStatus mPortStatus[2]; 127 bool mInitialBufferSubmit; 128 bool mSignalledEOS; 129 bool mNoMoreOutputData; 130 bool mOutputPortSettingsHaveChanged; 131 int64_t mSeekTimeUs; 132 133 Mutex mLock; 134 Condition mAsyncCompletion; 135 136 // A list of indices into mPortStatus[kPortIndexOutput] filled with data. 137 List<size_t> mFilledBuffers; 138 Condition mBufferFilled; 139 140 OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, 141 bool isEncoder, const char *mime, const char *componentName, 142 const sp<MediaSource> &source); 143 144 void addCodecSpecificData(const void *data, size_t size); 145 void clearCodecSpecificData(); 146 147 void setComponentRole(); 148 149 void setAMRFormat(); 150 void setAMRWBFormat(); 151 void setAACFormat(int32_t numChannels, int32_t sampleRate); 152 153 status_t setVideoPortFormatType( 154 OMX_U32 portIndex, 155 OMX_VIDEO_CODINGTYPE compressionFormat, 156 OMX_COLOR_FORMATTYPE colorFormat); 157 158 void setVideoInputFormat( 159 const char *mime, OMX_U32 width, OMX_U32 height); 160 161 void setVideoOutputFormat( 162 const char *mime, OMX_U32 width, OMX_U32 height); 163 164 void setImageOutputFormat( 165 OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); 166 167 void setJPEGInputFormat( 168 OMX_U32 width, OMX_U32 height, OMX_U32 compressedSize); 169 170 void setMinBufferSize(OMX_U32 portIndex, OMX_U32 size); 171 172 void setRawAudioFormat( 173 OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels); 174 175 status_t allocateBuffers(); 176 status_t allocateBuffersOnPort(OMX_U32 portIndex); 177 178 status_t freeBuffersOnPort( 179 OMX_U32 portIndex, bool onlyThoseWeOwn = false); 180 181 void drainInputBuffer(IOMX::buffer_id buffer); 182 void fillOutputBuffer(IOMX::buffer_id buffer); 183 void drainInputBuffer(BufferInfo *info); 184 void fillOutputBuffer(BufferInfo *info); 185 186 void drainInputBuffers(); 187 void fillOutputBuffers(); 188 189 // Returns true iff a flush was initiated and a completion event is 190 // upcoming, false otherwise (A flush was not necessary as we own all 191 // the buffers on that port). 192 // This method will ONLY ever return false for a component with quirk 193 // "kRequiresFlushCompleteEmulation". 194 bool flushPortAsync(OMX_U32 portIndex); 195 196 void disablePortAsync(OMX_U32 portIndex); 197 void enablePortAsync(OMX_U32 portIndex); 198 199 static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); 200 static bool isIntermediateState(State state); 201 202 void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); 203 void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); 204 void onStateChange(OMX_STATETYPE newState); 205 void onPortSettingsChanged(OMX_U32 portIndex); 206 207 void setState(State newState); 208 209 status_t init(); 210 void initOutputFormat(const sp<MetaData> &inputFormat); 211 212 void dumpPortStatus(OMX_U32 portIndex); 213 214 static uint32_t getComponentQuirks(const char *componentName); 215 216 static void findMatchingCodecs( 217 const char *mime, 218 bool createEncoder, const char *matchComponentName, 219 uint32_t flags, 220 Vector<String8> *matchingCodecs); 221 222 OMXCodec(const OMXCodec &); 223 OMXCodec &operator=(const OMXCodec &); 224}; 225 226struct CodecProfileLevel { 227 OMX_U32 mProfile; 228 OMX_U32 mLevel; 229}; 230 231struct CodecCapabilities { 232 String8 mComponentName; 233 Vector<CodecProfileLevel> mProfileLevels; 234}; 235 236// Return a vector of componentNames with supported profile/level pairs 237// supporting the given mime type, if queryDecoders==true, returns components 238// that decode content of the given type, otherwise returns components 239// that encode content of the given type. 240// profile and level indications only make sense for h.263, mpeg4 and avc 241// video. 242// The profile/level values correspond to 243// OMX_VIDEO_H263PROFILETYPE, OMX_VIDEO_MPEG4PROFILETYPE, 244// OMX_VIDEO_AVCPROFILETYPE, OMX_VIDEO_H263LEVELTYPE, OMX_VIDEO_MPEG4LEVELTYPE 245// and OMX_VIDEO_AVCLEVELTYPE respectively. 246 247status_t QueryCodecs( 248 const sp<IOMX> &omx, 249 const char *mimeType, bool queryDecoders, 250 Vector<CodecCapabilities> *results); 251 252} // namespace android 253 254#endif // OMX_CODEC_H_ 255