/*----------------------------------------------------------------------
| AP4_IsmaTrackEncrypter::ProcessTrack
+---------------------------------------------------------------------*/
AP4_Result
AP4_IsmaTrackEncrypter::ProcessTrack()
{
// sinf container
AP4_ContainerAtom* sinf = new AP4_ContainerAtom(AP4_ATOM_TYPE_SINF);
// original format
AP4_FrmaAtom* frma = new AP4_FrmaAtom(m_SampleEntry->GetType());
// scheme
AP4_SchmAtom* schm = new AP4_SchmAtom(AP4_ISMACRYP_SCHEME_TYPE_IAEC, 1);
// scheme info
AP4_ContainerAtom* schi = new AP4_ContainerAtom(AP4_ATOM_TYPE_SCHI);
AP4_IkmsAtom* ikms = new AP4_IkmsAtom(m_KmsUri.c_str());
AP4_IsfmAtom* isfm = new AP4_IsfmAtom(false, 0, 4);
// populate the schi container
schi->AddChild(ikms);
schi->AddChild(isfm);
// populate the sinf container
sinf->AddChild(frma);
sinf->AddChild(schm);
sinf->AddChild(schi);
// add the sinf atom to the sample description
m_SampleEntry->AddChild(sinf);
// change the atom type of the sample description
m_SampleEntry->SetType(m_Format);
return AP4_SUCCESS;
}
/*----------------------------------------------------------------------
| AP4_IsmaTrackDecrypter::ProcessTrack
+---------------------------------------------------------------------*/
AP4_Result
AP4_IsmaTrackDecrypter::ProcessTrack()
{
m_SampleEntry->SetType(m_OriginalFormat);
m_SampleEntry->DeleteChild(AP4_ATOM_TYPE_SINF);
return AP4_SUCCESS;
}
/*----------------------------------------------------------------------
| AP4_OmaDcfTrackEncrypter::ProcessTrack
+---------------------------------------------------------------------*/
AP4_Result
AP4_OmaDcfTrackEncrypter::ProcessTrack()
{
// original format
AP4_FrmaAtom* frma = new AP4_FrmaAtom(m_SampleEntry->GetType());
// scheme info
AP4_OdafAtom* odaf = new AP4_OdafAtom(true, 0, AP4_CIPHER_BLOCK_SIZE);
AP4_OhdrAtom* ohdr = new AP4_OhdrAtom(m_CipherMode,
m_CipherPadding,
0,
m_ContentId.GetChars(),
m_RightsIssuerUrl.GetChars(),
m_TextualHeaders.GetData(),
m_TextualHeaders.GetDataSize());
AP4_SchmAtom* schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_OMA,
AP4_PROTECTION_SCHEME_VERSION_OMA_20);
// populate the odkm container
AP4_ContainerAtom* odkm = new AP4_ContainerAtom(AP4_ATOM_TYPE_ODKM, (AP4_UI32)0, (AP4_UI32)0);
odkm->AddChild(odaf);
odkm->AddChild(ohdr);
// populate the schi container
AP4_ContainerAtom* schi = new AP4_ContainerAtom(AP4_ATOM_TYPE_SCHI);
schi->AddChild(odkm);
// populate the sinf container
AP4_ContainerAtom* sinf = new AP4_ContainerAtom(AP4_ATOM_TYPE_SINF);
sinf->AddChild(frma);
sinf->AddChild(schm);
sinf->AddChild(schi);
// add the sinf atom to the sample description
m_SampleEntry->AddChild(sinf);
// change the atom type of the sample description
m_SampleEntry->SetType(m_Format);
return AP4_SUCCESS;
}