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/*
* 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_COMPONENT_BASE_H_
#define OMX_COMPONENT_BASE_H_
#include <OMX_Component.h>
namespace android {
struct OMXComponentBase {
OMXComponentBase(
const OMX_CALLBACKTYPE *callbacks,
OMX_PTR appData);
virtual ~OMXComponentBase();
virtual OMX_ERRORTYPE sendCommand(
OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR cmdData) = 0;
virtual OMX_ERRORTYPE getParameter(
OMX_INDEXTYPE index, OMX_PTR params) = 0;
virtual OMX_ERRORTYPE setParameter(
OMX_INDEXTYPE index, const OMX_PTR params) = 0;
virtual OMX_ERRORTYPE getConfig(
OMX_INDEXTYPE index, OMX_PTR config) = 0;
virtual OMX_ERRORTYPE setConfig(
OMX_INDEXTYPE index, const OMX_PTR config) = 0;
virtual OMX_ERRORTYPE getExtensionIndex(
const OMX_STRING name, OMX_INDEXTYPE *index) = 0;
virtual OMX_ERRORTYPE useBuffer(
OMX_BUFFERHEADERTYPE **bufHdr,
OMX_U32 portIndex,
OMX_PTR appPrivate,
OMX_U32 size,
OMX_U8 *buffer) = 0;
virtual OMX_ERRORTYPE allocateBuffer(
OMX_BUFFERHEADERTYPE **bufHdr,
OMX_U32 portIndex,
OMX_PTR appPrivate,
OMX_U32 size) = 0;
virtual OMX_ERRORTYPE freeBuffer(
OMX_U32 portIndex,
OMX_BUFFERHEADERTYPE *buffer) = 0;
virtual OMX_ERRORTYPE emptyThisBuffer(OMX_BUFFERHEADERTYPE *buffer) = 0;
virtual OMX_ERRORTYPE fillThisBuffer(OMX_BUFFERHEADERTYPE *buffer) = 0;
virtual OMX_ERRORTYPE enumerateRoles(OMX_U8 *role, OMX_U32 index) = 0;
virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state) = 0;
// Wraps a given OMXComponentBase instance into an OMX_COMPONENTTYPE
// as required by OpenMAX APIs.
static OMX_COMPONENTTYPE *MakeComponent(OMXComponentBase *base);
protected:
void postEvent(OMX_EVENTTYPE event, OMX_U32 param1, OMX_U32 param2);
void postFillBufferDone(OMX_BUFFERHEADERTYPE *bufHdr);
void postEmptyBufferDone(OMX_BUFFERHEADERTYPE *bufHdr);
private:
void setComponentHandle(OMX_COMPONENTTYPE *handle);
const OMX_CALLBACKTYPE *mCallbacks;
OMX_PTR mAppData;
OMX_COMPONENTTYPE *mComponentHandle;
OMXComponentBase(const OMXComponentBase &);
OMXComponentBase &operator=(const OMXComponentBase &);
};
} // namespace android
#endif // OMX_COMPONENT_BASE_H_
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