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Diffstat (limited to 'media/libstagefright/omx/OMXComponentBase.h')
-rw-r--r-- | media/libstagefright/omx/OMXComponentBase.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/media/libstagefright/omx/OMXComponentBase.h b/media/libstagefright/omx/OMXComponentBase.h new file mode 100644 index 0000000..fd0df0b --- /dev/null +++ b/media/libstagefright/omx/OMXComponentBase.h @@ -0,0 +1,96 @@ +/* + * 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_ |