HD VANC data to AAF file. How?

[Bodi]

Hi
I have downloaded the SDK over 4 months ago now or so... I am trying to export HD VANC CDP 608 and DTVCC (EIA-708b-1999 spec) data to an AAF file. There is no C++ sample that shows how to do this in the SDK.
I have made my app and tried it by calling CreateEssence but I'm not sure what codec or other parameters to use:

AxContentStorage axContentStorage( axHeader.GetContentStorage() );
AxDictionary axDictionary( axHeader.GetDictionary() );

static const aafUID_t kAAFDataDef_GenCont = { 0x060E2B34, 0x0401, 0x0100, { 0x0D, 0x01, 0x03, 0x01, 0x02, 0x00, 0x00, 0x00 } };

aafRational_t editRate = {25, 1};
aafRational_t sampleRate = {25, 1};

IAAFEssenceAccessSP spIaafEssenceAccess;

// We will use ContainerAAF, hence no locator is required.
IAAFLocatorSP nullLocator;

IAAFDataDefSP pdd = axDictionary.LookupDataDef(kAAFDataDef_LegacyPicture);

AxEssenceAccess axEssenceAccess ( masterMob.CreateEssence(
1,
pdd,
kAAFNoCodec,
editRate,
sampleRate,
kAAFCompressionDisable,
nullLocator,
ContainerAAF ));

Code execution throws an exception AxEx ex.what() shows nothing.

I drilled a bit more and the exception comes from here:
(from c:...\AAF-src-1.1.6\AAF\ref-impl\src\impl\ImplAAFEssenceAccess.cpp)

plugins = ImplAAFContext::GetInstance()->GetPluginManager(); // plugins is set to 0x00470840
//!!!Handle case where multiple codecs exist for a codecID
CHECK(plugins->GetPluginInstance(_codecID, &plugin)); // this line throws the exception
_codecID is set to:
Data1 = 0x568fb761
Data2 = 0x9458
Data3 = 0x11d2
Data4 = 0x004f922c

I just don't know what those parameters should be for my VANC data to export to this AAF file. Bit mad at the moment...

Any help appreciated,

Bodi

[pieterb]

I suspect that CreateEssence fails because it needs a valid codec ID (different from kAAFNoCodec). I have no idea though what it should be in your case. I prefer creating the SourceMob and EssenceData objects directly rather than using EssenceAccess.