fileformats/mp4/parser/src/avcconfigurationbox.cpp

/* ------------------------------------------------------------------
 * 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.
 * -------------------------------------------------------------------
 */
#define IMPLEMENT_AVCConfigurationBox

#include "avcsampleentry.h"
#include "atomutils.h"
#include "atomdefs.h"

#define LENGTH_SIZE_MINUS_ONE_MASK 0x03
#define NUM_SEQUENCE_PARAM_SETS_MASK 0x01F

typedef Oscl_Vector<AVCConfigurationBox::ParameterSet*, OsclMemAllocator> parameterSetVecType;

AVCConfigurationBox::AVCConfigurationBox(MP4_FF_FILE *fp, uint32 size, uint32 type)
        : Atom(fp, size, type)
{
    _mp4ErrorCode = READ_AVC_CONFIG_BOX_FAILED;

    _sequenceParameterSetVec = NULL;
    _pictureParameterSetVec  = NULL;
    _totalSeqParameterSetLength = 0;
    _totalPicutureParameterSetLength = 0;

    if (_success)
    {
        _success = false;
        _pparent = NULL;

        PV_MP4_FF_NEW(fp->auditCB, parameterSetVecType, (), _sequenceParameterSetVec);
        PV_MP4_FF_NEW(fp->auditCB, parameterSetVecType, (), _pictureParameterSetVec);

        if (!AtomUtils::read8(fp, _configurationVersion))
        {
            return;
        }
        if (!AtomUtils::read8(fp, _avcProfileIndication))
        {
            return;
        }
        if (!AtomUtils::read8(fp, _profileCompatibility))
        {
            return;
        }

        if (!AtomUtils::read8(fp, _avcLevelIndication))
        {
            return;
        }

        _constraint_set0_flag = (uint8)((_profileCompatibility & ~0x7F) >> 7);
        _constraint_set1_flag = (uint8)((_profileCompatibility & ~0xBF) >> 6);
        _constraint_set2_flag = (uint8)((_profileCompatibility & ~0xDF) >> 5);
        _reserved_zero_5bits = 0;

        if (!AtomUtils::read8(fp, _lengthSizeMinusOne))
        {
            return;
        }
        _lengthSizeMinusOne &= LENGTH_SIZE_MINUS_ONE_MASK;

        if (!AtomUtils::read8(fp, _numSequenceParameterSets))
        {
            return;
        }
        _numSequenceParameterSets &= NUM_SEQUENCE_PARAM_SETS_MASK;

        uint8 i;
        uint16 parameterSetLen;

        for (i = 0; i < _numSequenceParameterSets; i++)
        {
            if (!AtomUtils::read16(fp, parameterSetLen))
            {
                return;
            }

            _totalSeqParameterSetLength += parameterSetLen;

            ParameterSet *paramSet = NULL;
            PV_MP4_FF_NEW(fp->auditCB, ParameterSet, (parameterSetLen, fp), paramSet);

            if (!(paramSet->getSuccess()))
            {
                PV_MP4_FF_DELETE(NULL, ParameterSet, paramSet);
                return;
            }

            (*_sequenceParameterSetVec).push_back(paramSet);

        }

        if (!AtomUtils::read8(fp, _numPictureParameterSets))
        {
            return;
        }

        for (i = 0; i < _numPictureParameterSets; i++)
        {
            if (!AtomUtils::read16(fp, parameterSetLen))
            {
                return;
            }

            _totalPicutureParameterSetLength += parameterSetLen;

            ParameterSet *paramSet = NULL;
            PV_MP4_FF_NEW(fp->auditCB, ParameterSet, (parameterSetLen, fp), paramSet);

            if (!(paramSet->getSuccess()))
            {
                PV_MP4_FF_DELETE(NULL, ParameterSet, paramSet);
                return;
            }

            (*_pictureParameterSetVec).push_back(paramSet);

        }
        _success = true;
        _mp4ErrorCode = EVERYTHING_FINE;

    }
}

OSCL_EXPORT_REF bool AVCConfigurationBox::getPictureParamSet(int32 index, uint16 &length, uint8* &paramSet)
{
    if ((uint32)index < _pictureParameterSetVec->size())
    {
        ParameterSet *pSet = (*_pictureParameterSetVec)[index];

        length = pSet->getParameterSetLength();
        paramSet = pSet->getParameterSet();

        return true;
    }
    else
    {
        length = 0;
        paramSet = NULL;
        return false;
    }
}

OSCL_EXPORT_REF bool AVCConfigurationBox::getSequenceParamSet(int32 index, uint16 &length, uint8* &paramSet)
{
    if ((uint32)index < _sequenceParameterSetVec->size())
    {
        ParameterSet *pSet = (*_sequenceParameterSetVec)[index];

        length = pSet->getParameterSetLength();
        paramSet = pSet->getParameterSet();

        return true;
    }
    else
    {
        length = 0;
        paramSet = NULL;
        return false;
    }
}

AVCConfigurationBox::ParameterSet::ParameterSet(uint16 length, MP4_FF_FILE *fp)
{
    _parameterSetLength = 0;
    _pParameterSet = NULL;
    _success = false;

    if ((int16)(length) > 0)
    {
        _parameterSetLength = length;

        PV_MP4_FF_ARRAY_NEW(NULL, uint8, _parameterSetLength, _pParameterSet);

        if (!AtomUtils::readByteData(fp, _parameterSetLength, _pParameterSet))
        {
            return ;
        }
        _success = true;
    }
}

// Destructor
AVCConfigurationBox::~AVCConfigurationBox()
{
    if (_sequenceParameterSetVec != NULL)
    {
        for (uint32 i = 0; i < _sequenceParameterSetVec->size(); i++)
        {
            PV_MP4_FF_DELETE(NULL, ParameterSet, (*_sequenceParameterSetVec)[i]);
        }
        PV_MP4_FF_TEMPLATED_DELETE(NULL, parameterSetVecType, Oscl_Vector, _sequenceParameterSetVec);
    }
    if (_pictureParameterSetVec != NULL)
    {
        for (uint32 i = 0; i < _pictureParameterSetVec->size(); i++)
        {
            PV_MP4_FF_DELETE(NULL, ParameterSet, (*_pictureParameterSetVec)[i]);
        }
        PV_MP4_FF_TEMPLATED_DELETE(NULL, parameterSetVecType, Oscl_Vector, _pictureParameterSetVec);
    }
}