使用DXIFRShim可以同时使用单个游戏过程捕获多个窗口吗

嗨，
垫片只创建一个NvIFREncoder，因此只生成一个H264流。
如果要捕获两个DX窗口，则需要两个NvIFREncoder实例。
加里



以下为原文

Hi,

The shim only creates one NvIFREncoder, so there's only one H264 stream generated. If you want to capture two DX windows, you need two instances of NvIFREncoder.

Gary

嗯，这是在IDXGISwapChain.cpp中完成的，对吗？
尤其是，
static NvIFREncoder * pEncoder;
pEncoder = new NvIFREncoderDXGI（this，desc.Width，desc.Height， 
desc.Format，FALSE，pAppParam）;
pEncoder-> StartEncoder（）;
当前行为似乎是从两个窗口捕获并将其帧传递到此单个NvIFREncoder中。
这是否意味着我还必须创建一个额外的交换链？
然后将相应的交换链/缓冲区传递给编码器？
如下所述：
NvIFREncoderDXGI *）pEncoder） - > UpdateSharedSurface（pD3D10Device，pBackBuffer）
我是DirectX编程的新手，如果我提出奇怪或明显的东西，我会道歉。



以下为原文

Hmm, this is done in IDXGISwapChain.cpp, correct?

In particular,
static NvIFREncoder *pEncoder;
pEncoder = new NvIFREncoderDXGI(This, desc.Width, desc.Height,
                                                               desc.Format, FALSE, pAppParam);
pEncoder->StartEncoder();
The current behavior seems to be capturing from both windows and passing their frames into this single NvIFREncoder. Does this mean that I have to create an additional swap chain as well? Then pass the respective swap chain/buffer into the encoder? As done in the following:
NvIFREncoderDXGI *)pEncoder)->UpdateSharedSurface(pD3D10Device, pBackBuffer)
I'm very new at DirectX programming, apologies if I asking strange or obvious stuff.

请检查一下
IDXGISwapChain *这个
参数对于不同的窗口具有不同的值。
如果是，请为每个人创建一个NvIFREncoderDXGI。



以下为原文

Please check if the
IDXGISwapChain * This
argument has different values for the different windows. If yes, create one NvIFREncoderDXGI for each of them.

他们确实不同。
我继续像你说的那样为每个人创建一个NvIFREncoderDXGI。
我现在有以下变量：
NvIFREncoder * pEncoder0;
NvIFREncoder * pEncoder1;
IDXGISwapChain * Window0;
IDXGISwapChain * Window1;
个别地，他们工作得很好。
我的意思是当我启动两个窗口时，我注释掉Window1 / pEncoder1，我可以从Window0捕获并输出到pEncoder0而没有问题。
然后我注释掉Window0 / pEncoder0并取消注释Window1 / pEncoder1。
这也很有效。
输入捕获和输出流都可以完美地工作。
但是当我同时启用时，pEncoder0和pEncoder1都从Window1获取输入（Window1在Window0之后启动）。
然而，它们都按预期输出到它们自己的流中。
这很奇怪。
我很确定我的代码中没有脑屁。
DXGI.shim.log中有一行显示“只找到一个适配器。无需进一步检查即可使用它。”
这就是我遇到问题的原因吗？
我还注意到“pEncoder-> StartEncoder（）”线程实际上并没有被线程化（pEncoder0在pEncoder1启动之后才真正启动）



以下为原文

They are indeed different.

I went ahead to create one NvIFREncoderDXGI for each of them like you said. I now have the following variables:

NvIFREncoder *pEncoder0;
NvIFREncoder *pEncoder1;
IDXGISwapChain *Window0;
IDXGISwapChain *Window1;
Individually, they work fine. What I mean is that when I launch both windows, I comment out Window1/pEncoder1 and I can capture from Window0 and output to pEncoder0 without issues. I then comment out Window0/pEncoder0 and uncomment Window1/pEncoder1. That works great too. The input capture and output streams all work perfectly.

But when I have both enabled, both pEncoder0 and pEncoder1 are getting their input from Window1 (Window1 launches after Window0). They both output into their own stream as intended though. This is very strange. I'm quite sure I'm not having a brain fart here in my code.

There's this line in the DXGI.shim.log that says "Only one adapter found. Using it without further checks." Is this the reason why I'm getting the problem I have? I've also noticed that the "pEncoder->StartEncoder()" threading isn't actually being threaded as well (pEncoder0 doesn't actually start until after pEncoder1 has started)

发现了这个bug。
NvIFREncoder也需要一个额外的缓冲区变量。
Window1的数据覆盖了缓冲区。
然而，这仍然是正确的。
如果我找到原因，我会更新。
编辑：我发现了原因。
NvIFREncoder也需要额外的gpuEvent句柄（对于ppTransferCompletionEvents）



以下为原文

Found the bug. NvIFREncoder needs an additional buffer variable as well. The buffer was being overwritten by Window1's data.


However this still remains true. I'll update if I manage to find out why.

Edit: I've found out why. The NvIFREncoder needs additional gpuEvent handles as well (for ppTransferCompletionEvents)