AAFRESULT STDMETHODCALLTYPE
ImplAAFEssenceData::GetFileMob (ImplAAFSourceMob ** ppFileMob)
{
AAFRESULT result = AAFRESULT_SUCCESS;
ImplAAFMob *pMob = NULL;
ImplAAFSourceMob *pSourceMob = NULL;
ImplAAFEssenceDescriptor *pEssenceDescriptor = NULL;
ImplAAFHeader *pHeader = NULL;
aafMobID_t mobID;
if(NULL == ppFileMob)
return(AAFRESULT_NULL_PARAM);
XPROTECT()
{
CHECK(GetFileMobID(&mobID));
// Does a mob with the ID already exist? If not, return error.
// NOTE: Will return AAFRESULT_OBJECT_NOT_PERSISTENT if this object has
// not been appended to to the file.
CHECK(MyHeadObject(&pHeader));
CHECK(pHeader->LookupMob(mobID, &pMob));
// This should be a valid file mob which is a file mob.
pSourceMob = dynamic_cast<ImplAAFSourceMob *>(pMob);
if (NULL == pSourceMob)
RAISE(AAFRESULT_NOT_FILEMOB);
// Does the source mob contain a file descriptor?
CHECK(pSourceMob->GetEssenceDescriptor(&pEssenceDescriptor));
if (dynamic_cast<ImplAAFFileDescriptor *>(pEssenceDescriptor))
{
(*ppFileMob) = pSourceMob;
pSourceMob->AcquireReference();
}
} /* XPROTECT */
XEXCEPT
{ // save the error code.
result = (XCODE());
NO_PROPAGATE();
}
XEND;
// cleanup
// Note: pMob and pSourceMob are temp and should not be released.
if (pEssenceDescriptor)
{
pEssenceDescriptor->ReleaseReference();
pEssenceDescriptor = NULL;
}
if (pMob)
{
pMob->ReleaseReference();
pMob = NULL;
}
if (pHeader)
{
pHeader->ReleaseReference();
pHeader = NULL;
}
return(result);
}
//************************
// Function: FindTimecodeClip (INTERNAL)
// Finds the primary timecode track. This will have a physical slot # of 0 (missing) or 1.
//
AAFRESULT ImplAAFSourceMob::FindTimecodeClip(
aafFrameOffset_t position,
ImplAAFTimecode **result,
aafFrameOffset_t *tcStartPos,
aafLength_t *tcSlotLen)
{
ImplAAFSegment * seg = NULL;
aafPosition_t offset;
aafPosition_t sequPos;
ImplAAFMobSlot *slot = NULL;
ImplEnumAAFMobSlots *slotIter = NULL;
aafBool found = kAAFFalse;
aafUInt32 phys;
XPROTECT()
{
offset = position;
*tcStartPos = 0;
*result = NULL;
CHECK(GetSlots (&slotIter));
while((found != kAAFTrue) && slotIter->NextOne(&slot) == AAFRESULT_SUCCESS)
{
ImplAAFDataDefSP pDataDef;
CHECK(slot->GetDataDef (&pDataDef));
aafBool isTimecode = kAAFFalse;
CHECK(pDataDef->IsTimecodeKind(&isTimecode));
if(isTimecode)
{
CHECK(slot->GetPhysicalNum (&phys));
if((phys == 0) || (phys == 1))
found = kAAFTrue;
}
}
if(found != kAAFTrue)
RAISE(AAFRESULT_MISSING_TRACKID);
CHECK(slot->GetSegment(&seg));
CHECK(seg->GetLength(tcSlotLen));
CHECK(seg->OffsetToTimecodeClip(offset, result, &sequPos));
*tcStartPos = sequPos;
slot->ReleaseReference();
slot = NULL;
seg->ReleaseReference();
seg = NULL;
slotIter->ReleaseReference();
slotIter = NULL;
} /* XPROTECT */
XEXCEPT
{
if(XCODE() == AAFRESULT_NO_MORE_OBJECTS)
RERAISE(AAFRESULT_NO_TIMECODE);
if(slotIter!= NULL)
slotIter->ReleaseReference();
slotIter = 0;
if(slot != NULL)
slot->ReleaseReference();
slot = 0;
if(seg != NULL)
seg->ReleaseReference();
seg = 0;
*result = NULL;
}
XEND;
return(AAFRESULT_SUCCESS);
}
AAFRESULT STDMETHODCALLTYPE
ImplAAFEssenceData::SetFileMob (ImplAAFSourceMob * pFileMob)
{
AAFRESULT result = AAFRESULT_SUCCESS;
ImplAAFMob *pMob = NULL;
ImplAAFSourceMob *pSourceMob = NULL;
ImplAAFEssenceDescriptor *pEssenceDescriptor = NULL;
ImplAAFFileDescriptor *pFileDescriptor = NULL;
ImplAAFHeader *pHeader = NULL;
aafMobID_t mobID;
if(NULL == pFileMob)
return(AAFRESULT_NULL_PARAM);
XPROTECT()
{
CHECK(pFileMob->GetMobID(&mobID));
// move to ImplAAFContentStorage::AppendEssenceData().
// Does a mob with the ID already exist? If not, return error
CHECK(pFileMob->MyHeadObject(&pHeader));
CHECK(pHeader->LookupMob(mobID, &pMob));
// Make sure the mob is a valid File source mob???
pSourceMob = dynamic_cast<ImplAAFSourceMob *>(pMob);
if (NULL == pSourceMob)
RAISE(AAFRESULT_INVALID_FILE_MOB);
// Must
result = pSourceMob->GetEssenceDescriptor(&pEssenceDescriptor);
if (AAFRESULT_SUCCESS != result)
RAISE(AAFRESULT_INVALID_FILE_MOB);
pFileDescriptor = dynamic_cast<ImplAAFFileDescriptor *>(pEssenceDescriptor);
if (NULL == pFileDescriptor)
RAISE(AAFRESULT_INVALID_FILE_MOB);
// The mob id refers to a valid file source mob so we can save
// the id.
_fileMobID = mobID;
} /* XPROTECT */
XEXCEPT
{ // save the error code.
result = (XCODE());
NO_PROPAGATE();
}
XEND;
// cleanup
if (pEssenceDescriptor)
{
pEssenceDescriptor->ReleaseReference();
pEssenceDescriptor = NULL;
}
if (pMob)
{
pMob->ReleaseReference();
pMob = NULL;
}
if (pHeader)
{
pHeader->ReleaseReference();
pHeader = NULL;
}
return(result);
}
