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added the avcC box

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This commit is contained in:
Erik Zandvliet 2012-10-29 12:14:11 +01:00
parent ec5dd47be9
commit 503f63af2b
2 changed files with 136 additions and 1 deletions
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110
lib/mp4.cpp
View file

@ -124,6 +124,7 @@ namespace MP4{
case 0x7472756E: return ((TRUN*)this)->toPrettyString(indent); break;
case 0x74726166: return ((TRAF*)this)->toPrettyString(indent); break;
case 0x74666864: return ((TFHD*)this)->toPrettyString(indent); break;
case 0x61766343: return ((AVCC*)this)->toPrettyString(indent); break;
default: return std::string(indent, ' ')+"Unimplemented pretty-printing for box "+std::string(data+4,4)+"\n"; break;
}
}
@ -1535,5 +1536,114 @@ namespace MP4{
return r.str();
}
AVCC::AVCC() {
memcpy(data + 4, "avcC", 4);
setInt8( 0xFF, 4 );//reserved + 4-bytes NAL length
}
void AVCC::setVersion( long newVersion ) {
setInt8( newVersion, 0 );
}
long AVCC::getVersion( ) {
return getInt8( 0 );
}
void AVCC::setProfile( long newProfile ) {
setInt8( newProfile, 1 );
}
long AVCC::getProfile( ) {
return getInt8( 1 );
}
void AVCC::setCompatibleProfiles( long newCompatibleProfiles ) {
setInt8( newCompatibleProfiles, 2 );
}
long AVCC::getCompatibleProfiles( ) {
return getInt8( 2 );
}
void AVCC::setLevel( long newLevel ) {
setInt8( newLevel, 3 );
}
long AVCC::getLevel( ) {
return getInt8( 3 );
}
void AVCC::setSPSNumber( long newSPSNumber ) {
setInt8( newSPSNumber, 5 );
}
long AVCC::getSPSNumber( ) {
return getInt8( 5 );
}
void AVCC::setSPS( std::string newSPS ) {
setInt16( newSPS.size(), 6 );
for( int i = 0; i < newSPS.size(); i++ ) {
setInt8( newSPS[i], 8+i );
}//not null-terminated
}
long AVCC::getSPSLen( ) {
return getInt16( 6 );
}
char* AVCC::getSPS( ) {
return payload() + 8;
}
void AVCC::setPPSNumber( long newPPSNumber ) {
int offset = 8 + getSPSLen( );
setInt8( newPPSNumber, offset );
}
long AVCC::getPPSNumber( ) {
int offset = 8 + getSPSLen( );
return getInt8( offset );
}
void AVCC::setPPS( std::string newPPS ) {
int offset = 8 + getSPSLen( ) + 1;
setInt16( newPPS.size(), offset );
for( int i = 0; i < newPPS.size(); i++ ) {
setInt8( newPPS[i], offset+2+i );
}//not null-terminated
}
long AVCC::getPPSLen( ) {
int offset = 8 + getSPSLen( ) + 1;
return getInt16( offset );
}
char* AVCC::getPPS( ) {
int offset = 8 + getSPSLen( ) + 3;
return payload() + offset;
}
std::string AVCC::toPrettyString(long indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[avcC] H.264 Init Data (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version: " << getVersion( ) << std::endl;
r << std::string(indent+1, ' ') << "Profile: " << getProfile( ) << std::endl;
r << std::string(indent+1, ' ') << "Compatible Profiles: " << getCompatibleProfiles( ) << std::endl;
r << std::string(indent+1, ' ') << "Level: " << getLevel( ) << std::endl;
r << std::string(indent+1, ' ') << "SPS Number: " << getSPSNumber( ) << std::endl;
r << std::string(indent+2, ' ') << getSPSLen( ) << " of SPS data" << std::endl;
r << std::string(indent+1, ' ') << "PPS Number: " << getPPSNumber( ) << std::endl;
r << std::string(indent+2, ' ') << getPPSLen( ) << " of PPS data" << std::endl;
return r.str();
}
std::string AVCC::asAnnexB( ) {
std::stringstream r;
r << (char)0x00 << (char)0x00 << (char)0x00 << (char)0x01;
r << getSPS( );
r << (char)0x00 << (char)0x00 << (char)0x00 << (char)0x01;
r << getPPS( );
return r.str();
}
};

25
lib/mp4.h
View file

@ -275,4 +275,29 @@ namespace MP4{
std::string toPrettyString(long indent = 0);
};
class AVCC : public Box {
public:
AVCC();
void setVersion( long newVersion );
long getVersion( );
void setProfile( long newProfile );
long getProfile( );
void setCompatibleProfiles( long newCompatibleProfiles );
long getCompatibleProfiles( );
void setLevel( long newLevel );
long getLevel( );
void setSPSNumber( long newSPSNumber );
long getSPSNumber( );
void setSPS( std::string newSPS );
long getSPSLen( );
char* getSPS( );
void setPPSNumber( long newPPSNumber );
long getPPSNumber( );
void setPPS( std::string newPPS );
long getPPSLen( );
char* getPPS( );
std::string asAnnexB( );
std::string toPrettyString(long indent = 0);
};
};