Visual Circuits H-DVP, User Manual

Page: 83 / 89

Appendix
73
mpgDiagnostic
mpgDiagnostic retrieves information about the status of the MPEG
card. The function must be supplied with a pointer to a
mpgDiagnosticStruct. Once the function is called the
mpgDiagnosticStruct’s members will be set.
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Parameters
CardNum
0 based index of the card in the system.
ChanNum
0 based index of the channel on the card.
MDiagnostic
typedef struct
{
DWORD DMACount;
DWORD InterruptCount;
DWORD NumberOfSyncs;
DWORD LastSyncCorrection;
DWORD VideoDataOnChip;
DWORD AudioDataOnChip;
DWORD SizeVideoBufferOnChip;
DWORD SizeAudioBufferOnChip;
DWORD MPEGDataInMemory;
DWORD SizeMPEGBufferInMemory;
}mpgDiagnosticStruct;