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ILMDVRSink::GetBufferTotalSize

#include "ILMDVRSink.h"

C Syntax	HRESULT ILMDVRSink_GetBufferTotalSize(pILMDVRSink, nFolderIndex, uFlags, pnFiles, pnTotalFileSize)
C++ Syntax	HRESULT GetBufferTotalSize(nFolderIndex, uFlags, pnFiles, pnTotalFileSize)

ILMDVRSink *pILMDVRSink ;	pointer to an interface
long nFolderIndex;	0-based index of buffer location
long uFlags;	flags
long * pnFiles;	pointer to total number of files
double * pnTotalFileSize;	pointer to total file size

Gets the total size or actual size of all of the buffer (.LRC) files for the specified buffer folder.

Parameter	Description
pILMDVRSink	Pointer to an ILMDVRSink interface.
nFolderIndex	The 0-based index of the desired buffer folder.
uFlags	Flag specifying how to calculate the total size. Values can be: DVRGetTotalSize_Actual = 0x0000 DVRGetTotalSize_Allowed = 0x0001
pnFiles	Total number of files included in the buffer size calculation.
pnTotalFileSize	The total calculated buffer file size.

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Pass the DVRGetTotalSize_Allowed flag value to request the total allowable buffer file size OR pass the DVRGetTotalSize_Actual flag value to request the actual used total file size.

S_OK if successful, otherwise a return code indicating the reason for failure:

E_UNEXPECTED = Starting offset not found.

DISP_E_BADINDEX = Index supplied is outside the range of currently valid indexes.

LTMM_E_DVR_NO_RECORDINGS = No .LRC recording files exist.

E_INVALIDARG = Either the number of files or file size specified is not valid.

Required DLLs and Libraries

LMDVRSink

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

Example

For a C example, refer to ILMDVRSink::GetBufferTotalSize Example for C

For a C++ example, refer to ILMDVRSink::GetBufferTotalSize Example for C++

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Elements:	ILMDVRSink::GetAvailabilityInfo, ILMDVRSink::SetBufferSize, ILMDVRSink::GetStatus, ILMDVRSink::GetBufferInfo,
Topics:	Multimedia Function Group, DVR Function Groups, Introduction to the LEADTOOLS MPEG-2 Transport Module, DVR Component FAQs, LEAD DVR Sink Filter, Accessing the DVR Sink Object,How to Use the DVR Sink Object to Control Capture Buffer Settings (C++), How to Set DVR Buffer Locations on Multiple Physical Disks (C++), How to Copy Buffered DVR Data to a New File