nodes/pvwavffparsernode/src/pvmf_wavffparser_port.h

/* ------------------------------------------------------------------
 * Copyright (C) 1998-2009 PacketVideo
 *
 * 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 PVMF_WAVFFPARSER_PORT_H_INCLUDED
#define PVMF_WAVFFPARSER_PORT_H_INCLUDED

#ifndef OSCL_BASE_H_INCLUDED
#include "oscl_base.h"
#endif
#ifndef PVLOGGER_H_INCLUDED
#include "pvlogger.h"
#endif
#ifndef PVMF_PORT_BASE_IMPL_H_INCLUDED
#include "pvmf_port_base_impl.h"
#endif
#ifndef PVMI_CONFIG_AND_CAPABILITY_UTILS_H_INCLUDED
#include "pvmi_config_and_capability_utils.h"
#endif

class PVMFWAVFFParserNode;
class PVWAVFFNodeTrackPortInfo;

class PVMFWAVFFParserOutPort : public PvmfPortBaseImpl
            , public PvmiCapabilityAndConfigPortFormatImpl
{
    public:
        /**
         * Default constructor. Default settings will be used for the data queues.
         * @param aId ID assigned to this port
         * @param aTag Port tag
         * @param aNode Container node
         */
        PVMFWAVFFParserOutPort(int32 aTag
                               , PVMFWAVFFParserNode* aNode);

        /**
         * Constructor that allows the node to configure the data queues of this port.
         * @param aTag Port tag
         * @param aNode Container node
         * @param aSize Data queue capacity. The data queue size will not grow beyond this capacity.
         * @param aReserve Size of data queue for which memory is reserved. This must be
         * less than or equal to the capacity. If this is less than capacity, memory will be
         * allocated when the queue grows beyond the reserve size, but will stop growing at
         * capacity.
         * @param aThreshold Ready-to-receive threshold, in terms of percentage of the data queue capacity.
         * This value should be between 0 - 100.
         */
        PVMFWAVFFParserOutPort(int32 aTag
                               , PVMFNodeInterface* aNode
                               , uint32 aInCapacity
                               , uint32 aInReserve
                               , uint32 aInThreshold
                               , uint32 aOutCapacity
                               , uint32 aOutReserve
                               , uint32 aOutThreshold);

        /** Destructor */
        virtual ~PVMFWAVFFParserOutPort();

        // Implement pure virtuals from PvmiCapabilityAndConfigPortFormatImpl interface
        bool IsFormatSupported(PVMFFormatType);
        void FormatUpdated();

        // this port supports config interface
        void QueryInterface(const PVUuid &aUuid, OsclAny*&aPtr)
        {
            if (aUuid == PVMI_CAPABILITY_AND_CONFIG_PVUUID)
                aPtr = (PvmiCapabilityAndConfig*)this;
            else
                aPtr = NULL;
        }

        virtual PVMFStatus Connect(PVMFPortInterface* aPort);

    private:
        void Construct();

        PVLogger *iLogger;
        uint32 iNumFramesGenerated; //number of source frames generated.
        uint32 iNumFramesConsumed; //number of frames consumed & discarded.
        PVMFWAVFFParserNode* iNode;

        friend class PVMFWAVFFParserNode;
};

#endif // PVMF_WAVFFPARSER_PORT_H_INCLUDED