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      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 #define IMPLEMENT_AVCConfigurationBox
     19 
     20 #include "avcsampleentry.h"
     21 #include "atomutils.h"
     22 #include "atomdefs.h"
     23 
     24 #define LENGTH_SIZE_MINUS_ONE_MASK 0x03
     25 #define NUM_SEQUENCE_PARAM_SETS_MASK 0x01F
     26 
     27 typedef Oscl_Vector<AVCConfigurationBox::ParameterSet*, OsclMemAllocator> parameterSetVecType;
     28 
     29 AVCConfigurationBox::AVCConfigurationBox(MP4_FF_FILE *fp, uint32 size, uint32 type)
     30         : Atom(fp, size, type)
     31 {
     32     _mp4ErrorCode = READ_AVC_CONFIG_BOX_FAILED;
     33 
     34     _sequenceParameterSetVec = NULL;
     35     _pictureParameterSetVec  = NULL;
     36     _totalSeqParameterSetLength = 0;
     37     _totalPicutureParameterSetLength = 0;
     38 
     39     if (_success)
     40     {
     41         _success = false;
     42         _pparent = NULL;
     43 
     44         PV_MP4_FF_NEW(fp->auditCB, parameterSetVecType, (), _sequenceParameterSetVec);
     45         PV_MP4_FF_NEW(fp->auditCB, parameterSetVecType, (), _pictureParameterSetVec);
     46 
     47         if (!AtomUtils::read8(fp, _configurationVersion))
     48         {
     49             return;
     50         }
     51         if (!AtomUtils::read8(fp, _avcProfileIndication))
     52         {
     53             return;
     54         }
     55         if (!AtomUtils::read8(fp, _profileCompatibility))
     56         {
     57             return;
     58         }
     59 
     60         if (!AtomUtils::read8(fp, _avcLevelIndication))
     61         {
     62             return;
     63         }
     64 
     65         _constraint_set0_flag = (uint8)((_profileCompatibility & ~0x7F) >> 7);
     66         _constraint_set1_flag = (uint8)((_profileCompatibility & ~0xBF) >> 6);
     67         _constraint_set2_flag = (uint8)((_profileCompatibility & ~0xDF) >> 5);
     68         _reserved_zero_5bits = 0;
     69 
     70         if (!AtomUtils::read8(fp, _lengthSizeMinusOne))
     71         {
     72             return;
     73         }
     74         _lengthSizeMinusOne &= LENGTH_SIZE_MINUS_ONE_MASK;
     75 
     76         if (!AtomUtils::read8(fp, _numSequenceParameterSets))
     77         {
     78             return;
     79         }
     80         _numSequenceParameterSets &= NUM_SEQUENCE_PARAM_SETS_MASK;
     81 
     82         uint8 i;
     83         uint16 parameterSetLen;
     84 
     85         for (i = 0; i < _numSequenceParameterSets; i++)
     86         {
     87             if (!AtomUtils::read16(fp, parameterSetLen))
     88             {
     89                 return;
     90             }
     91 
     92             _totalSeqParameterSetLength += parameterSetLen;
     93 
     94             ParameterSet *paramSet = NULL;
     95             PV_MP4_FF_NEW(fp->auditCB, ParameterSet, (parameterSetLen, fp), paramSet);
     96 
     97             if (!(paramSet->getSuccess()))
     98             {
     99                 PV_MP4_FF_DELETE(NULL, ParameterSet, paramSet);
    100                 return;
    101             }
    102 
    103             (*_sequenceParameterSetVec).push_back(paramSet);
    104 
    105         }
    106 
    107         if (!AtomUtils::read8(fp, _numPictureParameterSets))
    108         {
    109             return;
    110         }
    111 
    112         for (i = 0; i < _numPictureParameterSets; i++)
    113         {
    114             if (!AtomUtils::read16(fp, parameterSetLen))
    115             {
    116                 return;
    117             }
    118 
    119             _totalPicutureParameterSetLength += parameterSetLen;
    120 
    121             ParameterSet *paramSet = NULL;
    122             PV_MP4_FF_NEW(fp->auditCB, ParameterSet, (parameterSetLen, fp), paramSet);
    123 
    124             if (!(paramSet->getSuccess()))
    125             {
    126                 PV_MP4_FF_DELETE(NULL, ParameterSet, paramSet);
    127                 return;
    128             }
    129 
    130             (*_pictureParameterSetVec).push_back(paramSet);
    131 
    132         }
    133         _success = true;
    134         _mp4ErrorCode = EVERYTHING_FINE;
    135 
    136     }
    137 }
    138 
    139 OSCL_EXPORT_REF bool AVCConfigurationBox::getPictureParamSet(int32 index, uint16 &length, uint8* &paramSet)
    140 {
    141     if ((uint32)index < _pictureParameterSetVec->size())
    142     {
    143         ParameterSet *pSet = (*_pictureParameterSetVec)[index];
    144 
    145         length = pSet->getParameterSetLength();
    146         paramSet = pSet->getParameterSet();
    147 
    148         return true;
    149     }
    150     else
    151     {
    152         length = 0;
    153         paramSet = NULL;
    154         return false;
    155     }
    156 }
    157 
    158 OSCL_EXPORT_REF bool AVCConfigurationBox::getSequenceParamSet(int32 index, uint16 &length, uint8* &paramSet)
    159 {
    160     if ((uint32)index < _sequenceParameterSetVec->size())
    161     {
    162         ParameterSet *pSet = (*_sequenceParameterSetVec)[index];
    163 
    164         length = pSet->getParameterSetLength();
    165         paramSet = pSet->getParameterSet();
    166 
    167         return true;
    168     }
    169     else
    170     {
    171         length = 0;
    172         paramSet = NULL;
    173         return false;
    174     }
    175 }
    176 
    177 AVCConfigurationBox::ParameterSet::ParameterSet(uint16 length, MP4_FF_FILE *fp)
    178 {
    179     _parameterSetLength = 0;
    180     _pParameterSet = NULL;
    181     _success = false;
    182 
    183     if ((int16)(length) > 0)
    184     {
    185         _parameterSetLength = length;
    186 
    187         PV_MP4_FF_ARRAY_NEW(NULL, uint8, _parameterSetLength, _pParameterSet);
    188 
    189         if (!AtomUtils::readByteData(fp, _parameterSetLength, _pParameterSet))
    190         {
    191             return ;
    192         }
    193         _success = true;
    194     }
    195 }
    196 
    197 // Destructor
    198 AVCConfigurationBox::~AVCConfigurationBox()
    199 {
    200     if (_sequenceParameterSetVec != NULL)
    201     {
    202         for (uint32 i = 0; i < _sequenceParameterSetVec->size(); i++)
    203         {
    204             PV_MP4_FF_DELETE(NULL, ParameterSet, (*_sequenceParameterSetVec)[i]);
    205         }
    206         PV_MP4_FF_TEMPLATED_DELETE(NULL, parameterSetVecType, Oscl_Vector, _sequenceParameterSetVec);
    207     }
    208     if (_pictureParameterSetVec != NULL)
    209     {
    210         for (uint32 i = 0; i < _pictureParameterSetVec->size(); i++)
    211         {
    212             PV_MP4_FF_DELETE(NULL, ParameterSet, (*_pictureParameterSetVec)[i]);
    213         }
    214         PV_MP4_FF_TEMPLATED_DELETE(NULL, parameterSetVecType, Oscl_Vector, _pictureParameterSetVec);
    215     }
    216 }
    217