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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at */
#if !defined(OmxDataDecoder_h_)
# define OmxDataDecoder_h_
# include "AudioCompactor.h"
# include "ImageContainer.h"
# include "MediaInfo.h"
# include "OMX_Component.h"
# include "OmxPromiseLayer.h"
# include "PlatformDecoderModule.h"
# include "mozilla/Monitor.h"
# include "mozilla/StateWatching.h"
namespace mozilla {
class MediaDataHelper;
typedef OmxPromiseLayer::OmxCommandPromise OmxCommandPromise;
typedef OmxPromiseLayer::OmxBufferPromise OmxBufferPromise;
typedef OmxPromiseLayer::OmxBufferFailureHolder OmxBufferFailureHolder;
typedef OmxPromiseLayer::OmxCommandFailureHolder OmxCommandFailureHolder;
typedef OmxPromiseLayer::BufferData BufferData;
typedef OmxPromiseLayer::BUFFERLIST BUFFERLIST;
DDLoggedTypeDeclNameAndBase(OmxDataDecoder, MediaDataDecoder);
/* OmxDataDecoder is the major class which performs followings:
* 1. Translate PDM function into OMX commands.
* 2. Keeping the buffers between client and component.
* 3. Manage the OMX state.
* From the definition in OpenMax spec. "2.2.1", there are 3 major roles in
* OpenMax IL.
* IL client:
* "The IL client may be a layer below the GUI application, such as GStreamer,
* or may be several layers below the GUI layer."
* OmxDataDecoder acts as the IL client.
* OpenMAX IL component:
* "A component that is intended to wrap functionality that is required in the
* target system."
* OmxPromiseLayer acts as the OpenMAX IL component.
* OpenMAX IL core:
* "Platform-specific code that has the functionality necessary to locate and
* then load an OpenMAX IL component into main memory."
* OmxPlatformLayer acts as the OpenMAX IL core.
class OmxDataDecoder : public MediaDataDecoder,
public DecoderDoctorLifeLogger<OmxDataDecoder> {
virtual ~OmxDataDecoder();
OmxDataDecoder(const TrackInfo& aTrackInfo,
layers::ImageContainer* aImageContainer);
RefPtr<InitPromise> Init() override;
RefPtr<DecodePromise> Decode(MediaRawData* aSample) override;
RefPtr<DecodePromise> Drain() override;
RefPtr<FlushPromise> Flush() override;
RefPtr<ShutdownPromise> Shutdown() override;
nsCString GetDescriptionName() const override { return "omx decoder"_ns; }
ConversionRequired NeedsConversion() const override {
return ConversionRequired::kNeedAnnexB;
// Return true if event is handled.
bool Event(OMX_EVENTTYPE aEvent, OMX_U32 aData1, OMX_U32 aData2);
void InitializationTask();
void ResolveInitPromise(const char* aMethodName);
void RejectInitPromise(MediaResult aError, const char* aMethodName);
void OmxStateRunner();
void FillAndEmptyBuffers();
void FillBufferDone(BufferData* aData);
void FillBufferFailure(OmxBufferFailureHolder aFailureHolder);
void EmptyBufferDone(BufferData* aData);
void EmptyBufferFailure(OmxBufferFailureHolder aFailureHolder);
void NotifyError(
OMX_ERRORTYPE aOmxError, const char* aLine,
const MediaResult& aError = MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR));
// Configure audio/video codec.
// Some codec may just ignore this and rely on codec specific data in
// FillCodecConfigDataToOmx().
void ConfigCodec();
// Sending codec specific data to OMX component. OMX component could send a
// OMX_EventPortSettingsChanged back to client. And then client needs to
// disable port and reallocate buffer.
void FillCodecConfigDataToOmx();
void SendEosBuffer();
void EndOfStream();
// It could be called after codec specific data is sent and component found
// the port format is changed due to different codec specific.
void PortSettingsChanged();
void Output(BufferData* aData);
// Buffer can be released if its status is not OMX_COMPONENT or
bool BuffersCanBeReleased(OMX_DIRTYPE aType);
OMX_DIRTYPE GetPortDirection(uint32_t aPortIndex);
RefPtr<ShutdownPromise> DoAsyncShutdown();
RefPtr<FlushPromise> DoFlush();
void FlushComplete(OMX_COMMANDTYPE aCommandType);
void FlushFailure(OmxCommandFailureHolder aFailureHolder);
nsresult AllocateBuffers(OMX_DIRTYPE aType);
nsresult ReleaseBuffers(OMX_DIRTYPE aType);
BufferData* FindAvailableBuffer(OMX_DIRTYPE aType);
// aType could be OMX_DirMax for all types.
CollectBufferPromises(OMX_DIRTYPE aType);
// The Omx TaskQueue.
RefPtr<TaskQueue> mOmxTaskQueue;
nsCOMPtr<nsISerialEventTarget> mThread;
RefPtr<layers::ImageContainer> mImageContainer;
WatchManager<OmxDataDecoder> mWatchManager;
// It is accessed in omx TaskQueue.
Watchable<OMX_STATETYPE> mOmxState;
RefPtr<OmxPromiseLayer> mOmxLayer;
UniquePtr<TrackInfo> mTrackInfo;
// It is accessed in both omx and reader TaskQueue.
Atomic<bool> mFlushing;
// It is accessed in Omx/reader TaskQueue.
Atomic<bool> mShuttingDown;
// It is accessed in Omx TaskQeueu.
bool mCheckingInputExhausted;
// It is accessed in OMX TaskQueue.
MozPromiseHolder<InitPromise> mInitPromise;
MozPromiseHolder<DecodePromise> mDecodePromise;
MozPromiseHolder<DecodePromise> mDrainPromise;
MozPromiseHolder<FlushPromise> mFlushPromise;
MozPromiseHolder<ShutdownPromise> mShutdownPromise;
// Where decoded samples will be stored until the decode promise is resolved.
DecodedData mDecodedData;
void CompleteDrain();
// It is written in Omx TaskQueue. Read in Omx TaskQueue.
// It value means the port index which port settings is changed.
// -1 means no port setting changed.
// Note: when port setting changed, there should be no buffer operations
// via EmptyBuffer or FillBuffer.
Watchable<int32_t> mPortSettingsChanged;
// It is access in Omx TaskQueue.
nsTArray<RefPtr<MediaRawData>> mMediaRawDatas;
BUFFERLIST mInPortBuffers;
BUFFERLIST mOutPortBuffers;
RefPtr<MediaDataHelper> mMediaDataHelper;
template <class T>
void InitOmxParameter(T* aParam) {
aParam->nSize = sizeof(T);
aParam->nVersion.s.nVersionMajor = 1;
} // namespace mozilla
#endif /* OmxDataDecoder_h_ */