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ILMDVRSource::GetBufferTotalSize

#include "ILMDVRSource.h"

C Syntax	HRESULT ILMDVRSource_GetBufferTotalSize(pILMDVRSource, nFolderIndex, uFlags, pnFiles, pnTotalFileSize)
C++ Syntax	HRESULT GetBufferTotalSize(nFolderIndex, uFlags, pnFiles, pnTotalFileSize)

ILMDVRSource *pILMDVRSource;	pointer to an interface
long nFolderIndex;	index of buffer folder
long uFlags;	flags
long * pnFiles;	pointer to the total number of files
double * pnTotalFileSize;	pointer to the total file size

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

Parameter	Description
pILMDVRSource	Pointer to an ILMDVRSource interface.
nFolderIndex	The index of the desired buffer folder.
uFlags	The flag specifying how to calculate the total size. Values can be: DVRGetTotalSize_Actual = 0x0000 DVRGetTotalSize_Allowed = 0x0001
pnFiles	Pointer to total number of files included in the buffer size calculation.
pnTotalFileSize	Pointer to 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.

Returns S_OK if successful; otherwise, returns a 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

ILMDVRSource

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 ILMDVRSource::GetBufferTotalSize Example For C

For a C++ example, refer to ILMDVRSource::GetBufferTotalSize Example For C++

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Elements:	ILMDVRSource::get_FolderCount, ILMDVRSource::get_FolderName, ILMDVRSource::GetAvailabilityInfo, ILMDVRSource::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