mistserver/util/MP4/box_abst.cpp

#include "box.cpp"
#include <string>
#include <vector>

struct abst_serverentry {
  std::string ServerBaseUrl;
};//abst_serverentry

struct abst_qualityentry {
  std::string QualityModifier;
};//abst_qualityentry

class Box_abst {
  public:
    Box_abst( );
    ~Box_abst();
    Box * GetBox();
    void SetBootstrapVersion( uint32_t Version = 1 );
    void SetProfile( uint8_t Profile = 0 );
    void SetLive( bool Live = true );
    void SetUpdate( bool Update = false );
    void SetTimeScale( uint32_t Scale = 1000 );
    void SetMediaTime( uint32_t Time = 0 );
    void SetSMPTE( uint32_t Smpte = 0 );
    void SetMovieIdentifier( std::string Identifier = "" );
    void SetDRM( std::string Drm = "" );
    void SetMetaData( std::string MetaData = "" );
    void AddServerEntry( std::string Url = "", uint32_t Offset = 0 );
    void AddQualityEntry( std::string Quality = "", uint32_t Offset = 0 );
    void AddSegmentRunTable( Box * newSegment, uint32_t Offset = 0 );
    void AddFragmentRunTable( Box * newFragment, uint32_t Offset = 0 );
    void WriteContent( );
  private:
    void SetDefaults( );
    void SetReserved( );
    uint32_t curBootstrapInfoVersion;
    uint8_t curProfile;
    bool isLive;
    bool isUpdate;
    uint32_t curTimeScale;
    uint32_t curMediatime;//write as uint64_t
    uint32_t curSMPTE;//write as uint64_t
    std::string curMovieIdentifier;
    std::string curDRM;
    std::string curMetaData;
    std::vector<abst_serverentry> Servers;
    std::vector<abst_qualityentry> Qualities;
    std::vector<Box *> SegmentRunTables;
    std::vector<Box *> FragmentRunTables;
    Box * Container;
};//Box_ftyp Class

Box_abst::Box_abst( ) {
  Container = new Box( 0x61627374 );
}

Box_abst::~Box_abst() {
  delete Container;
}

Box * Box_abst::GetBox() {
  return Container;
}

void Box_abst::SetBootstrapVersion( uint32_t Version ) {
  curBootstrapInfoVersion = Version;
}

void Box_abst::SetProfile( uint8_t Profile ) {
  curProfile = Profile;
}

void Box_abst::SetLive( bool Live ) {
  isLive = Live;
}

void Box_abst::SetUpdate( bool Update ) {
  isUpdate = Update;
}

void Box_abst::SetTimeScale( uint32_t Scale ) {
  curTimeScale = Scale;
}

void Box_abst::SetMediaTime( uint32_t Time ) {
  curMediatime = Time;
}

void Box_abst::SetSMPTE( uint32_t Smpte ) {
  curSMPTE = Smpte;
}

void Box_abst::SetMovieIdentifier( std::string Identifier ) {
  curMovieIdentifier = Identifier;
}

void Box_abst::SetDRM( std::string Drm ) {
  curDRM = Drm;
}

void Box_abst::SetMetaData( std::string MetaData ) {
  curMetaData = MetaData;
}

void Box_abst::AddServerEntry( std::string Url, uint32_t Offset ) {
  if(Offset >= Servers.size()) {
    Servers.resize(Offset+1);
  }
  Servers[Offset].ServerBaseUrl = Url;
}

void Box_abst::AddQualityEntry( std::string Quality, uint32_t Offset ) {
  if(Offset >= Qualities.size()) {
    Qualities.resize(Offset+1);
  }
  Qualities[Offset].QualityModifier = Quality;
}

void Box_abst::AddSegmentRunTable( Box * newSegment, uint32_t Offset ) {
  if( Offset >= SegmentRunTables.size() ) {
    SegmentRunTables.resize(Offset+1);
  }
  if( SegmentRunTables[Offset] ) {
    delete SegmentRunTables[Offset];
  }
  SegmentRunTables[Offset] = newSegment;
}

void Box_abst::AddFragmentRunTable( Box * newFragment, uint32_t Offset ) {
  if( Offset >= FragmentRunTables.size() ) {
    FragmentRunTables.resize(Offset+1);
  }
  if( FragmentRunTables[Offset] ) {
    delete FragmentRunTables[Offset];
  }
  FragmentRunTables[Offset] = newFragment;
}


void Box_abst::SetDefaults( ) {
  SetProfile( );
  SetLive( );
  SetUpdate( );
  SetTimeScale( );
  SetMediaTime( );
  SetSMPTE( );
  SetMovieIdentifier( );
  SetDRM( );
  SetMetaData( );
}

void Box_abst::SetReserved( ) {
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0));
}

void Box_abst::WriteContent( ) {
  Box * current;
  std::string serializedServers = "";
  std::string serializedQualities = "";
  std::string serializedSegments = "";
  std::string serializedFragments = "";
  int SegmentAmount = 0;
  int FragmentAmount = 0;
  uint8_t * temp = new uint8_t[1];

  Container->ResetPayload( );
  SetReserved( );

  for( uint32_t i = 0; i < Servers.size(); i++ ) {
    serializedServers.append(Servers[i].ServerBaseUrl.c_str());
    serializedServers += '\0';
  }
  for( uint32_t i = 0; i < Qualities.size(); i++ ) {
    serializedQualities.append(Qualities[i].QualityModifier.c_str());
    serializedQualities += '\0';
  }
  for( uint32_t i = 0; i < SegmentRunTables.size(); i++ ) {
    current=SegmentRunTables[i];
    if( current ) {
      SegmentAmount ++;
      serializedSegments.append((char*)current->GetBoxedData(),current->GetBoxedDataSize());
    }
  }
  for( uint32_t i = 0; i < FragmentRunTables.size(); i++ ) {
    current=FragmentRunTables[i];
    if( current ) {
      FragmentAmount ++;
      serializedFragments.append((char*)current->GetBoxedData(),current->GetBoxedDataSize());
    }
  }
  uint32_t OffsetServerEntryCount = 29 + curMovieIdentifier.size() + 1;
  uint32_t OffsetQualityEntryCount = OffsetServerEntryCount + 4 + serializedServers.size();
  uint32_t OffsetDrmData = OffsetQualityEntryCount + 4 + serializedQualities.size();
  uint32_t OffsetMetaData = OffsetDrmData + curDRM.size() + 1;
  uint32_t OffsetSegmentRuntableCount = OffsetMetaData + curMetaData.size() + 1;
  uint32_t OffsetFragmentRuntableCount = OffsetSegmentRuntableCount + 4 + serializedSegments.size();

  temp[0] = 0 & ( curProfile << 6 ) & ( (uint8_t)isLive << 7 ) & ( (uint8_t)isUpdate << 7 );

  Container->SetPayload((uint32_t)serializedFragments.size(),(uint8_t*)serializedFragments.c_str(),OffsetFragmentRuntableCount+4);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(FragmentAmount),OffsetFragmentRuntableCount);
  Container->SetPayload((uint32_t)serializedSegments.size(),(uint8_t*)serializedSegments.c_str(),OffsetSegmentRuntableCount+4);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(SegmentAmount),OffsetSegmentRuntableCount);
  Container->SetPayload((uint32_t)curMetaData.size()+1,(uint8_t*)curMetaData.c_str(),OffsetMetaData);
  Container->SetPayload((uint32_t)curDRM.size()+1,(uint8_t*)curDRM.c_str(),OffsetDrmData);
  Container->SetPayload((uint32_t)serializedQualities.size(),(uint8_t*)serializedQualities.c_str(),OffsetQualityEntryCount+4);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Qualities.size()),OffsetQualityEntryCount);
  Container->SetPayload((uint32_t)serializedServers.size(),(uint8_t*)serializedServers.c_str(),OffsetServerEntryCount+4);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Servers.size()),OffsetServerEntryCount);
  Container->SetPayload((uint32_t)curMovieIdentifier.size()+1,(uint8_t*)curMovieIdentifier.c_str(),29);//+1 for \0-terminated string...
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(curSMPTE),25);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),21);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(curMediatime),17);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),13);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(curTimeScale),9);
  Container->SetPayload((uint32_t)1,temp,8);
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(curBootstrapInfoVersion),4);
}