如何使用IWriteEngine2 [英] how to use IWriteEngine2

问题描述

我有同样的问题，如http://social.msdn.microsoft.com/Forums/en-NZ/windowsopticalplatform/thread/0274808e-45c3-4957-9f87-0bce419cdf45

I have the same problem like http://social.msdn.microsoft.com/Forums/en-NZ/windowsopticalplatform/thread/0274808e-45c3-4957-9f87-0bce419cdf45

代码喜欢

OnBurn()
{ 
 CDiscMaster discMaster;
 if(!discMaster.Initialize())
 {
  AfxMessageBox("初始化Master失败");
  return ;
 }

 CDiscRecorder *pDiscRecorder = NULL;
 for(i = 0; i < discMaster.GetTotalDevices(); i++)
 {
  pDiscRecorder = new CDiscRecorder;
  if(!pDiscRecorder->Initialize(discMaster.GetDeviceUniqueID(i)))
  {
   delete pDiscRecorder;
   pDiscRecorder = NULL;
   continue;
  }
  CDiscFormatData discFormat ;
  if(!discFormat.Initialize(pDiscRecorder,_T("BurnCDTest")))
  {
   delete pDiscRecorder ;
   pDiscRecorder = NULL;
   continue;
  }

  break;
 }

 if(pDiscRecorder == NULL)
 {
  AfxMessageBox("没有找到可刻录的光驱");
  return ;
 }

 if(!pDiscRecorder->AcquireExclusiveAccess(true,_T("BurnCD")))
 {
  AfxMessageBox(_T("无法获取光驱的独占权"));
  return ;
 }

 CFileObject fileObj(_T("F:\\vc60.rar"));
 IStream *pIStream = NULL;
 pIStream = fileObj.GetStream();

	CWriteEngine writeEngine;
	writeEngine.Initialize(pDiscRecorder->GetInterfaceEx(),2048); 

	hr = writeEngine.GetInterface()->put_UseStreamingWrite12(VARIANT_FALSE);

	writeEngine.Burn(pIStream,20); 


	pDiscRecorder->ReleaseExclusiveAccess();
}

bool CWriteEngine::Initialize(IDiscRecorder2Ex *pDiscRecorder2Ex,ULONG bytePerSector)
{
	m_hResult = ::CoCreateInstance(__uuidof(MsftWriteEngine2), NULL, CLSCTX_INPROC_SERVER,
		__uuidof(IWriteEngine2), (void**)&m_pWriteEngine);

	if(FAILED(m_hResult))
	{
		return false;
	}

	m_hResult = m_pWriteEngine->put_Recorder(pDiscRecorder2Ex);

	if(!SUCCEEDED(m_hResult))
	{
		return false;
	}


	ULONG ulMax;
	m_hResult = pDiscRecorder2Ex->GetMaximumNonPageAlignedTransferSize(&ulMax);
	if(ulMax < bytePerSector)
	{
		bytePerSector = ulMax;
	}

	if(bytePerSector < 1)
	{
		bytePerSector = 1;
	}
	m_hResult = m_pWriteEngine->put_BytesPerSector(bytePerSector);
	if(!SUCCEEDED(m_hResult))
	{
		return false;
	}

	m_hResult = m_pWriteEngine->put_EndingSectorsPerSecond(-1);

	m_hResult = m_pWriteEngine->put_StartingSectorsPerSecond(-1); 

	m_hResult = m_pWriteEngine->put_UseStreamingWrite12(VARIANT_TRUE); 

	if(FAILED(m_hResult))
	{
		return false;
	}

	return true;
}


bool CWriteEngine::Burn(IStream *pIstream,long NumofBlocks,bool blast)
{
//	IDiscFormat2RawCD

	CWriteEngineEvent* eventSink = CWriteEngineEvent::CreateEventSink();
	if(eventSink == NULL)
	{
		m_errorMsg = _T("Unable to create event sink");
		return false;
	}

	if(!eventSink->ConnectWriteEngine(this))
	{
		m_errorMsg = _T("Unable to connect event sink with interface");
		return false;
	}

//	if(!blast)
	{
		m_hResult = m_pWriteEngine->WriteSection(pIstream,m_lLastEndSector,NumofBlocks);
	}
// 	else
// 	{
// 		m_hResult = m_pWriteEngine->WriteSection(pIstream,1,1);
// 	}
	if(!SUCCEEDED(m_hResult))
	{
		if(m_hResult == E_POINTER)
		{
			m_errorMsg = _T("Pointer is not valid.");
		}
		else if(m_hResult == E_OUTOFMEMORY)
		{
			m_errorMsg = _T("Failed to allocate the required memory.");
		}
		else if(m_hResult == E_INVALIDARG)
		{
			m_errorMsg = _T("One or more arguments are not valid.");
		}
		else if(m_hResult == 0xC0AA0002)
		{
			m_errorMsg = _T("The request was canceled.");
		}
		else
		{
			m_errorMsg = _T("Unkonow error.");
		}
		return false;
	}

	m_lLastEndSector += NumofBlocks;

	return true;
}

刻录DVD + RW（首先刻录）时，WriteSection因E_IMAPI_UNEXPECTED_RESPONSE_FROM_DEVICE失败。 （DVD + R还可以）

WriteSection failed with E_IMAPI_UNEXPECTED_RESPONSE_FROM_DEVICE when burning DVD+RW(which is first to burn). (DVD+R is ok)

但奇怪的是，使用IDiscFormat2Data来刻录dvd + rw是成功的。更奇怪的是，IWriteEngine可以刻录通过IDiscFormat2Data刻录的DVD + rw。

But strangely, it is successful that use IDiscFormat2Data to burn dvd+rw. More strangely, IWriteEngine can burn the dvd+rw which was burned through IDiscFormat2Data .

根据MSDN，我在使用IWriteEngine2时可以实现五个步骤：

According to MSDN, there are five steps that I can implement when using IWriteEngine2:

1. 通过设置媒体的模式页面来准备硬件。
2. 查询硬件以验证介质是否足够大。
3. 初始化写入，例如，通过格式化媒体或设置OPC。
4. 执行实际的WRITE命令。
5. 通过停止格式化或关闭会话或轨道来完成写入。
   

但在我的代码中，只有第4步得到了照顾。

But in my code, only step 4 is cared.

问题是否发生是因为我没有实施第1步和第3步？如果是这样，我该如何实施它们？

Does the problem happen because I doesnot implement step1 and 3? If so, how can I implement them?

任何人都可以帮助我吗？

Can anyone help me?

推荐答案

是的，您看到的问题恰恰是由于缺少步骤1和3. IDiscFormat2Data在空白媒体上执行这些步骤，例如下次使用媒体步骤1和3时不需要。

Yes the problem you see is precisely due to the absence of steps 1 and 3. IDiscFormat2Data performs these steps on blank media, such that the next time you use the media steps 1 and 3 are not required.

如果你不能使用IDiscFormat2Data（如果可以简化的话），你需要了解详细信息MMC规范。该规范的价格为
http://www.t10.org/drafts.htm#MMC_Family 但是，它要么是T10的成员，要么在ANSI商店购买。富士山规格主要针对DVD-R / RW，但可能包含DVD + R / RW所需的
，可从
ftp://ftp.avc-pioneer.com/  这些是我们在Microsoft用来开发IMAPI代码的两个规范。

If you can't use IDiscFormat2Data (which if you can would simplify things), you need to learn the details of the MMC specification. That specification is available at http://www.t10.org/drafts.htm#MMC_Family However it requires to either be a member of T10 or to purchase it at the ANSI store. Mt Fuji specifications are focused on DVD-R/RW but may include what you need for DVD+R/RW and are downloadable for free from ftp://ftp.avc-pioneer.com/ These are the two specifications we used at Microsoft to develop our IMAPI code.

再次，如果您使用IDiscFormat2Data从设置媒体的正确写入参数的相当复杂的任务中抽象出来，那么您的生活会更加简单。

Again, your life would be a lot simpler if you used IDiscFormat2Data to abstract yourself from the fairly complex task of setting the proper write parameters of the media.

这篇关于如何使用IWriteEngine2的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！