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ILMDVRSource::GetBufferInfo

#include "ILMDVRSource.h"

C Syntax	HRESULT ILMDVRSource_GetBufferInfo(pILMDVRSource, nBufferIndex, pszFileName, pnUsefulSize, pnFileSize, pnPlayIndex, pnFlags)
C++ Syntax	HRESULT GetBufferInfo(nBufferIndex, pszFileName, pnUsefulSize, pnFileSize, pnPlayIndex, pnFlags)

ILMDVRSource *pILMDVRSource;	pointer to an interface
long nBufferIndex;	index to buffer folder
BSTR * pszFileName;	pointer to buffer filename
double * pnUsefulSize;	pointer to used file size
double * pnFileSize;	pointer to physical file size
long * pnPlayIndex;	pointer to play order index
long * pnFlags;	pointer to flags

Gets the buffer information associated with the specified buffer file index.

Parameter	Description
pILMDVRSource	Pointer to an ILMDVRSource interface.
nBufferIndex	The index of the buffer file for which to get information.
pszFileName	Pointer to a string type that will receive the filename of the related buffer recording file.
pnUsefulSize	Pointer to a double type that will receive the used file size of this recording chunk file.
pnFileSize	Pointer to a double type that will receive the physical file size of this recording chunk file.
pnPlayIndex	Pointer to a long type that will receive the index in the play order (the first index might not be 0, but all files should have sequential and incrementing indexes after the first index value)
pnFlags	Pointer to a long type that will receive a DVRBufferFlagConstant setting. Value can be: DVRBuffer_Empty = 0x0001, DVRBuffer_Writing = 0x0002, DVRBuffer_Finished = 0x0004

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

Returns S_OK if successful; otherwise, returns a code indicating the reason for failure:

E_INVALIDARG = Buffer index supplied is outside the range of currently valid indexes.

LTMM_E_DVR_NO_RECORDINGS = No .LRC recording files exist.

E_OUTOFMEMORY = A memory allocation error occurred. When attempting to allocate storage for the buffer filename string.

Required DLLs and Libraries

LTMM

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

Win32, x64

Help Version 21.0.2021.7.19

LEADTOOLS Multimedia C API Help

Elements:	ILMDVRSource::get_FolderCount, ILMDVRSource::get_FolderName, ILMDVRSource::GetAvailabilityInfo, ILMDVRSource::GetBufferTotalSize
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++)Disk, How to Copy Buffered DVR Data to a New File