__int64 MultiFileReader::GetFileSize()
{
return m_endPosition - m_startPosition;
if (m_cachedFileSize==0)
{
RefreshTSBufferFile();
RefreshFileSize();
}
return m_cachedFileSize;
}
HRESULT MultiFileReader::Read(PBYTE pbData, ULONG lDataLength, ULONG *dwReadBytes)
{
HRESULT hr;
// If the file has already been closed, don't continue
if (m_TSBufferFile.IsFileInvalid())
return S_FALSE;
RefreshTSBufferFile();
RefreshFileSize();
if (m_currentPosition < m_startPosition)
m_currentPosition = m_startPosition;
// Find out which file the currentPosition is in.
MultiFileReaderFile *file = NULL;
std::vector<MultiFileReaderFile *>::iterator it = m_tsFiles.begin();
for ( ; it < m_tsFiles.end() ; it++ )
{
file = *it;
if (m_currentPosition < (file->startPosition + file->length))
break;
};
if(!file)
{
LogDebug("MultiFileReader::no file");
return S_FALSE;
}
if (m_currentPosition < (file->startPosition + file->length))
{
if (m_TSFileId != file->filePositionId)
{
m_TSFile.CloseFile();
m_TSFile.SetFileName(file->filename);
m_TSFile.OpenFile();
m_TSFileId = file->filePositionId;
if (m_bDebugOutput)
{
USES_CONVERSION;
TCHAR sz[MAX_PATH+128];
wsprintf(sz, TEXT("Current File Changed to %s\n"), W2T(file->filename));
//::OutputDebugString(sz);
}
}
__int64 seekPosition = m_currentPosition - file->startPosition;
m_TSFile.SetFilePointer(seekPosition, FILE_BEGIN);
__int64 posSeeked=m_TSFile.GetFilePointer();
if (posSeeked!=seekPosition)
{
LogDebug("SEEK FAILED");
}
ULONG bytesRead = 0;
__int64 bytesToRead = file->length - seekPosition;
if (lDataLength > bytesToRead)
{
hr = m_TSFile.Read(pbData, (ULONG)bytesToRead, &bytesRead);
if (FAILED(hr))
{
LogDebug("READ FAILED1");
}
m_currentPosition += bytesToRead;
hr = this->Read(pbData + bytesToRead, lDataLength - (ULONG)bytesToRead, dwReadBytes);
if (FAILED(hr))
{
LogDebug("READ FAILED2");
}
*dwReadBytes += bytesRead;
}
else
{
hr = m_TSFile.Read(pbData, lDataLength, dwReadBytes);
if (FAILED(hr))
{
LogDebug("READ FAILED2");
}
m_currentPosition += lDataLength;
}
}
else
{
// The current position is past the end of the last file
*dwReadBytes = 0;
}
return S_OK;
}
long MultiFileReader::Read(unsigned char* pbData, unsigned long lDataLength, unsigned long *dwReadBytes)
{
long hr;
// If the file has already been closed, don't continue
if (m_TSBufferFile.IsFileInvalid())
return S_FALSE;
RefreshTSBufferFile();
RefreshFileSize();
if (m_currentPosition < m_startPosition)
m_currentPosition = m_startPosition;
// Find out which file the currentPosition is in.
MultiFileReaderFile *file = NULL;
std::vector<MultiFileReaderFile *>::iterator it = m_tsFiles.begin();
for ( ; it < m_tsFiles.end() ; it++ )
{
file = *it;
if (m_currentPosition < (file->startPosition + file->length))
break;
};
if(!file)
{
XBMC->Log(LOG_DEBUG, "MultiFileReader::no file");
return S_FALSE;
}
if (m_currentPosition < (file->startPosition + file->length))
{
if (m_TSFileId != file->filePositionId)
{
m_TSFile.CloseFile();
m_TSFile.SetFileName(file->filename.c_str());
m_TSFile.OpenFile();
m_TSFileId = file->filePositionId;
if (m_bDebugOutput)
{
XBMC->Log(LOG_DEBUG, "MultiFileReader::Read() Current File Changed to %s\n", file->filename.c_str());
}
}
int64_t seekPosition = m_currentPosition - file->startPosition;
m_TSFile.SetFilePointer(seekPosition, FILE_BEGIN);
int64_t posSeeked=m_TSFile.GetFilePointer();
if (posSeeked!=seekPosition)
{
XBMC->Log(LOG_DEBUG, "SEEK FAILED");
}
unsigned long bytesRead = 0;
int64_t bytesToRead = file->length - seekPosition;
if (lDataLength > bytesToRead)
{
hr = m_TSFile.Read(pbData, (unsigned long)bytesToRead, &bytesRead);
if (FAILED(hr))
{
XBMC->Log(LOG_DEBUG, "READ FAILED1");
}
m_currentPosition += bytesToRead;
hr = this->Read(pbData + bytesToRead, lDataLength - (unsigned long)bytesToRead, dwReadBytes);
if (FAILED(hr))
{
XBMC->Log(LOG_DEBUG, "READ FAILED2");
}
*dwReadBytes += bytesRead;
}
else
{
hr = m_TSFile.Read(pbData, lDataLength, dwReadBytes);
if (FAILED(hr))
{
XBMC->Log(LOG_DEBUG, "READ FAILED2");
}
m_currentPosition += lDataLength;
}
}
else
{
// The current position is past the end of the last file
*dwReadBytes = 0;
}
return S_OK;
}
