void MP4File::Make3GPCompliant(const char* fileName, char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount, bool deleteIodsAtom)
{
char brand[5] = "3gp5";
char* _3gpSupportedBrands[1] = { (char*)&brand };
if (majorBrand) {
if (!supportedBrands || !supportedBrandsCount) {
throw new MP4Error("Invalid parameters", "MP4File::Make3GPCompliant");
}
}
MakeFtypAtom(
majorBrand ? majorBrand : (char*)brand,
majorBrand ? minorVersion : _3GP_MINOR_VERSION,
majorBrand ? supportedBrands : (char**)_3gpSupportedBrands,
majorBrand ? supportedBrandsCount : 1);
if (deleteIodsAtom) {
// Delete the iods atom, if it exists....
MP4Atom* iodsAtom = m_pRootAtom->FindAtom("moov.iods");
if (iodsAtom) {
MP4Atom* moovAtom = m_pRootAtom->FindAtom("moov");
ASSERT(moovAtom);
moovAtom->DeleteChildAtom(iodsAtom);
}
}
}
void MP4File::Make3GPCompliant(const char* fileName, char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount, bool deleteIodsAtom)
{
char brand[5] = "3gp5";
char* _3gpSupportedBrands[1] = { (char*)&brand };
if (majorBrand) {
if (!supportedBrands || !supportedBrandsCount) {
throw new MP4Error("Invalid parameters", "MP4File::Make3GPCompliant");
}
}
m_fileName = MP4Stralloc(fileName);
m_mode = 'r';
// first load meta-info into memory
Open("rb");
ReadFromFile();
CacheProperties(); // of moov atom
// now switch over to writing the new file
MP4Free(m_fileName);
// create a temporary file
m_fileName = MP4Stralloc(TempFileName());
MakeFtypAtom(
majorBrand ? majorBrand : (char*)brand,
majorBrand ? minorVersion : _3GP_MINOR_VERSION,
majorBrand ? supportedBrands : (char**)_3gpSupportedBrands,
majorBrand ? supportedBrandsCount : 1);
if (deleteIodsAtom) {
// Delete the iods atom, if it exists....
MP4Atom* iodsAtom = m_pRootAtom->FindAtom("moov.iods");
if (iodsAtom) {
MP4Atom* moovAtom = m_pRootAtom->FindAtom("moov");
ASSERT(moovAtom);
moovAtom->DeleteChildAtom(iodsAtom);
}
}
FILE* pReadFile = m_pFile;
m_pFile = NULL;
m_mode = 'w';
Open("wb");
SetIntegerProperty("moov.mvhd.modificationTime",
MP4GetAbsTimestamp());
// writing meta info in the optimal order
((MP4RootAtom*)m_pRootAtom)->BeginOptimalWrite();
// write data in optimal order
RewriteMdat(pReadFile, m_pFile);
// finish writing
((MP4RootAtom*)m_pRootAtom)->FinishOptimalWrite();
// cleanup
fclose(m_pFile);
m_pFile = NULL;
fclose(pReadFile);
// move temporary file into place
Rename(m_fileName, fileName);
}
