Home | History | Annotate | Download | only in include 
      1 /* ------------------------------------------------------------------
      2  * Copyright (C) 1998-2009 PacketVideo
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
     13  * express or implied.
     14  * See the License for the specific language governing permissions
     15  * and limitations under the License.
     16  * -------------------------------------------------------------------
     17  */
     18 /*
     19 * ==============================================================================
     20 *  Name        : pv_2way_track_info_impl.h
     21 *  Part of     :
     22 *  Interface   :
     23 *  Description : Interface class and supporting definitions for the PV2Way SDK
     24 *  Version     : (see RELEASE field in copyright header above)
     25 *
     26 * ==============================================================================
     27 */
     28 
     29 #ifndef PV_2WAY_TRACK_INFO_IMPL_H_INCLUDED
     30 #define PV_2WAY_TRACK_INFO_IMPL_H_INCLUDED
     31 
     32 
     33 #include "pv_2way_basic_interfaces.h"
     34 
     35 
     36 class PV2WayTrackInfoImpl : public PV2WayTrackInfoInterface
     37 
     38 {
     39 
     40     private:
     41 
     42         PVMFFormatType iMimeString;
     43         uint8* iFormatSpecificInfo;
     44         uint32 iFormatSpecificInfoLen;
     45         int32 iEventCode;
     46         PVUuid iEventUuid;
     47         int32 iRefCount;
     48 
     49     public:
     50 
     51         PV2WayTrackInfoImpl(PVMFFormatType aMimeString, uint8* aFormatSpecificInfo, uint32 aFormatSpecificInfoLen, int32 aCode, PVUuid aUuid): iRefCount(1)
     52         {
     53             iMimeString = aMimeString;
     54 
     55             iFormatSpecificInfo = aFormatSpecificInfo;
     56             iFormatSpecificInfoLen = aFormatSpecificInfoLen;
     57             iEventCode = aCode;
     58             iEventUuid = aUuid;
     59         }
     60 
     61         /*
     62              Returns the code and space UUID for this info message
     63 
     64              @param aCode Reference to an integer which will be filled in with event code
     65              @param aUuid Reference to a PVUuid which will be filled in with UUID assocated to event code
     66 
     67              @return None
     68           */
     69         virtual void GetCodeUUID(int32& aCode, PVUuid& aUuid)
     70         {
     71             aCode = iEventCode;
     72             aUuid = iEventUuid;
     73         }
     74 
     75         /*
     76            Returns a reference to the format string.
     77 
     78            @return Reference to the format string
     79         */
     80 
     81         virtual void GetFormatString(PVMFFormatType& aMimeString)
     82         {
     83 
     84             aMimeString = iMimeString;
     85         }
     86 
     87 
     88         /*    Returns the Format Specific Info associated with this track
     89 
     90             @return A pointer to the Format Specific Info.  NULL if FSI is not present
     91          */
     92 
     93         virtual uint8* GetFormatSpecificInfo(uint32& aFormatSpecificInfoLen)
     94         {
     95             if (aFormatSpecificInfoLen == 0 || iFormatSpecificInfo == NULL)
     96             {
     97                 aFormatSpecificInfoLen = 0;
     98                 return NULL;
     99             }
    100             aFormatSpecificInfoLen = iFormatSpecificInfoLen;
    101             return iFormatSpecificInfo;
    102         }
    103 
    104         // From PVInterface
    105 
    106         /*
    107            Increments the reference count for this info message object
    108          */
    109 
    110         virtual void addRef()
    111         {
    112             ++iRefCount;
    113         }
    114 
    115         /*
    116            Decrements the reference count for this info message object and deletes
    117            this object if count goes to 0.
    118         */
    119 
    120         virtual void removeRef()
    121         {
    122             --iRefCount;
    123             if (iRefCount == 0)
    124             {
    125                 OSCL_DELETE(this);
    126             }
    127         }
    128 
    129         /*
    130              Returns the extension interface for the specified UUID if this info
    131              message object supports it. If the requested extension interface is supported
    132              true is returned, else false.
    133          */
    134 
    135         virtual bool queryInterface(const PVUuid& uuid, PVInterface*& iface)
    136         {
    137             if (uuid == PV2WayTrackInfoInterfaceUUID)
    138             {
    139                 PV2WayTrackInfoInterface* myInterface = OSCL_STATIC_CAST(PV2WayTrackInfoInterface*, this);
    140                 iface = OSCL_STATIC_CAST(PVInterface*, myInterface);
    141             }
    142             else
    143             {
    144                 return false;
    145             }
    146 
    147             return true;
    148         }
    149 };
    150 
    151 #endif
    152