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ILMDVRSource::GetBufferInfo

Summary

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

Syntax

#include "ILMDVRSource.h"

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

Parameters

ILMDVRSource *pILMDVRSource

Pointer to an ILMDVRSource interface.

long nBufferIndex

The index of the buffer file for which to get information.

BSTR *pszFileName

Pointer to a string type that will receive the filename of the related buffer recording file.

double *pnUsefulSize

Pointer to a double type that will receive the used file size of this recording chunk file.

double *pnFileSize

Pointer to a double type that will receive the physical file size of this recording chunk file.

long *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)

long *pnFlags

Pointer to a long type that will receive a DVRBufferFlagConstant setting.Value can be:DVRBuffer_Empty = 0x0001,DVRBuffer_Writing = 0x0002,DVRBuffer_Finished = 0x0004

Returns

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