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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 http://mozilla.org/MPL/2.0/. */
#if !defined(OmxPlatformLayer_h_)
#define OmxPlatformLayer_h_
#include "OMX_Core.h"
#include "OMX_Types.h"
#include "OmxPromiseLayer.h"
class nsACString;
namespace mozilla {
class TaskQueue;
class TrackInfo;
/*
* This class the the abstract layer of the platform OpenMax IL implementation.
*
* For some platform like andoird, it exposures its OpenMax IL via IOMX which
* is definitions are different comparing to standard.
* For other platforms like Raspberry Pi, it will be easy to implement this layer
* with the standard OpenMax IL api.
*/
class OmxPlatformLayer {
public:
typedef OmxPromiseLayer::BUFFERLIST BUFFERLIST;
typedef OmxPromiseLayer::BufferData BufferData;
virtual OMX_ERRORTYPE InitOmxToStateLoaded(const TrackInfo* aInfo) = 0;
OMX_ERRORTYPE Config();
virtual OMX_ERRORTYPE EmptyThisBuffer(BufferData* aData) = 0;
virtual OMX_ERRORTYPE FillThisBuffer(BufferData* aData) = 0;
virtual OMX_ERRORTYPE SendCommand(OMX_COMMANDTYPE aCmd,
OMX_U32 aParam1,
OMX_PTR aCmdData) = 0;
// Buffer could be platform dependent; for example, video decoding needs gralloc
// on Gonk. Therefore, derived class needs to implement its owned buffer
// allocate/release API according to its platform type.
virtual nsresult AllocateOmxBuffer(OMX_DIRTYPE aType, BUFFERLIST* aBufferList) = 0;
virtual nsresult ReleaseOmxBuffer(OMX_DIRTYPE aType, BUFFERLIST* aBufferList) = 0;
virtual OMX_ERRORTYPE GetState(OMX_STATETYPE* aType) = 0;
virtual OMX_ERRORTYPE GetParameter(OMX_INDEXTYPE aParamIndex,
OMX_PTR aComponentParameterStructure,
OMX_U32 aComponentParameterSize) = 0;
virtual OMX_ERRORTYPE SetParameter(OMX_INDEXTYPE nIndex,
OMX_PTR aComponentParameterStructure,
OMX_U32 aComponentParameterSize) = 0;
virtual nsresult Shutdown() = 0;
virtual ~OmxPlatformLayer() {}
// For decoders, input port index is start port number and output port is next.
// See OpenMAX IL spec v1.1.2 section 8.6.1 & 8.8.1.
OMX_U32 InputPortIndex() { return mStartPortNumber; }
OMX_U32 OutputPortIndex() { return mStartPortNumber + 1; }
void GetPortIndices(nsTArray<uint32_t>& aPortIndex) {
aPortIndex.AppendElement(InputPortIndex());
aPortIndex.AppendElement(OutputPortIndex());
}
virtual OMX_VIDEO_CODINGTYPE CompressionFormat();
// Check if the platform implementation supports given MIME type.
static bool SupportsMimeType(const nsACString& aMimeType);
// Hide the details of creating implementation objects for different platforms.
static OmxPlatformLayer* Create(OmxDataDecoder* aDataDecoder,
OmxPromiseLayer* aPromiseLayer,
TaskQueue* aTaskQueue,
layers::ImageContainer* aImageContainer);
protected:
OmxPlatformLayer() : mInfo(nullptr), mStartPortNumber(0) {}
// The pointee is held by |OmxDataDecoder::mTrackInfo| and will outlive this pointer.
const TrackInfo* mInfo;
OMX_U32 mStartPortNumber;
};
}
#endif // OmxPlatformLayer_h_
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