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Diffstat (limited to 'include/media/stagefright/OMXCodec.h')
| -rw-r--r-- | include/media/stagefright/OMXCodec.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h new file mode 100644 index 0000000..d4ae349 --- /dev/null +++ b/include/media/stagefright/OMXCodec.h @@ -0,0 +1,190 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef OMX_CODEC_H_ + +#define OMX_CODEC_H_ + +#include <media/IOMX.h> +#include <media/stagefright/MediaBuffer.h> +#include <media/stagefright/MediaSource.h> +#include <utils/threads.h> + +namespace android { + +class MemoryDealer; +struct OMXCodecObserver; + +struct OMXCodec : public MediaSource, + public MediaBufferObserver { + static sp<OMXCodec> Create( + const sp<IOMX> &omx, + const sp<MetaData> &meta, bool createEncoder, + const sp<MediaSource> &source); + + virtual status_t start(MetaData *params = NULL); + virtual status_t stop(); + + virtual sp<MetaData> getFormat(); + + virtual status_t read( + MediaBuffer **buffer, const ReadOptions *options = NULL); + + void on_message(const omx_message &msg); + + // from MediaBufferObserver + virtual void signalBufferReturned(MediaBuffer *buffer); + +protected: + virtual ~OMXCodec(); + +private: + enum State { + DEAD, + LOADED, + LOADED_TO_IDLE, + IDLE_TO_EXECUTING, + EXECUTING, + EXECUTING_TO_IDLE, + IDLE_TO_LOADED, + RECONFIGURING, + ERROR + }; + + enum { + kPortIndexInput = 0, + kPortIndexOutput = 1 + }; + + enum PortStatus { + ENABLED, + DISABLING, + DISABLED, + ENABLING, + SHUTTING_DOWN, + }; + + enum Quirks { + kNeedsFlushBeforeDisable = 1, + kWantsRawNALFrames = 2, + kRequiresLoadedToIdleAfterAllocation = 4, + kRequiresAllocateBufferOnInputPorts = 8, + }; + + struct BufferInfo { + IOMX::buffer_id mBuffer; + bool mOwnedByComponent; + sp<IMemory> mMem; + MediaBuffer *mMediaBuffer; + }; + + struct CodecSpecificData { + size_t mSize; + uint8_t mData[1]; + }; + + sp<IOMX> mOMX; + IOMX::node_id mNode; + sp<OMXCodecObserver> mObserver; + uint32_t mQuirks; + bool mIsEncoder; + char *mMIME; + char *mComponentName; + sp<MetaData> mOutputFormat; + sp<MediaSource> mSource; + Vector<CodecSpecificData *> mCodecSpecificData; + size_t mCodecSpecificDataIndex; + + sp<MemoryDealer> mDealer; + + State mState; + Vector<BufferInfo> mPortBuffers[2]; + PortStatus mPortStatus[2]; + bool mSignalledEOS; + bool mNoMoreOutputData; + int64_t mSeekTimeUs; + + Mutex mLock; + Condition mAsyncCompletion; + + // A list of indices into mPortStatus[kPortIndexOutput] filled with data. + List<size_t> mFilledBuffers; + Condition mBufferFilled; + + OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks, + bool isEncoder, const char *mime, const char *componentName, + const sp<MediaSource> &source); + + void addCodecSpecificData(const void *data, size_t size); + void clearCodecSpecificData(); + + void setAMRFormat(); + void setAACFormat(); + + status_t setVideoPortFormatType( + OMX_U32 portIndex, + OMX_VIDEO_CODINGTYPE compressionFormat, + OMX_COLOR_FORMATTYPE colorFormat); + + void setVideoInputFormat( + const char *mime, OMX_U32 width, OMX_U32 height); + + void setVideoOutputFormat( + const char *mime, OMX_U32 width, OMX_U32 height); + + void setImageOutputFormat( + OMX_COLOR_FORMATTYPE format, OMX_U32 width, OMX_U32 height); + + status_t allocateBuffers(); + status_t allocateBuffersOnPort(OMX_U32 portIndex); + + status_t freeBuffersOnPort( + OMX_U32 portIndex, bool onlyThoseWeOwn = false); + + void drainInputBuffer(IOMX::buffer_id buffer); + void fillOutputBuffer(IOMX::buffer_id buffer); + void drainInputBuffer(BufferInfo *info); + void fillOutputBuffer(BufferInfo *info); + + void drainInputBuffers(); + void fillOutputBuffers(); + + void flushPortAsync(OMX_U32 portIndex); + void disablePortAsync(OMX_U32 portIndex); + void enablePortAsync(OMX_U32 portIndex); + + static size_t countBuffersWeOwn(const Vector<BufferInfo> &buffers); + static bool isIntermediateState(State state); + + void onEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2); + void onCmdComplete(OMX_COMMANDTYPE cmd, OMX_U32 data); + void onStateChange(OMX_STATETYPE newState); + void onPortSettingsChanged(OMX_U32 portIndex); + + void setState(State newState); + + status_t init(); + void initOutputFormat(const sp<MetaData> &inputFormat); + + void dumpPortStatus(OMX_U32 portIndex); + + OMXCodec(const OMXCodec &); + OMXCodec &operator=(const OMXCodec &); +}; + +} // namespace android + +#endif // OMX_CODEC_H_ |