fileformats/avi/parser/include/pv_avifile_indx.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 PV_AVIFILE_INDX_H_INCLUDED
#define PV_AVIFILE_INDX_H_INCLUDED

#ifndef PV_AVIFILE_TYPEDEFS_H_INCLUDED
#include "pv_avifile_typedefs.h"
#endif

#ifndef PV_AVIFILE_PARSER_UTILS_H_INCLUDED
#include "pv_avifile_parser_utils.h"
#endif

typedef Oscl_Vector<IdxTblType, OsclMemAllocator> IndxTblVector;

//class to parse values in index chunk. index chunk contains offset and size info of media sample.
class PVAviFileIdxChunk: public PVAviFileParserStatus
{

    public:

        //constructor
        PVAviFileIdxChunk(PVFile* aFp, uint32 aIndxSize, uint32 aNumStreams);

        //destructor
        ~PVAviFileIdxChunk() { };

        uint32 GetOffset(uint32 aStreamNo, uint32 aSampleNo)
        {
            return (((iIndexTable[aStreamNo])[aSampleNo]).offset);
        }

        uint32 GetSampleSize(uint32 aStreamNo, uint32 aSampleNo)
        {
            return (((iIndexTable[aStreamNo])[aSampleNo]).size);
        }

        uint32 GetNumberOfSamplesInStream(uint32 aStreamNo)
        {
            return ((iIndexTable[aStreamNo]).size());
        }

        bool IsOffsetFromMoviList()
        {
            return iOffsetFrmMoviLst;
        }

        Oscl_Vector<IndxTblVector, OsclMemAllocator>
        GetIndexTable()
        {
            return iIndexTable;
        }

    private:

        // variable iIndexTable stores the offset and size info of ever sample in a stream
        // size of IndxTblTypeVector = number of samples ("movi" Subchunks) in a stream.
        // size of iIndexTable = number of streams.

        Oscl_Vector < IndxTblVector,
        OsclMemAllocator >    iIndexTable;
        uint32                           iIndexSize;
        uint32                           iNumStreams;
        bool                             iOffsetFrmMoviLst;

};

#endif //#ifndef PV_AVIFILE_INDX_H_INCLUDED