当前位置: 首页>>代码示例>>C++>>正文


C++ VideoStream::getDevice方法代码示例

本文整理汇总了C++中VideoStream::getDevice方法的典型用法代码示例。如果您正苦于以下问题:C++ VideoStream::getDevice方法的具体用法?C++ VideoStream::getDevice怎么用?C++ VideoStream::getDevice使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在VideoStream的用法示例。


在下文中一共展示了VideoStream::getDevice方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: waitForStreams

OniStatus Context::waitForStreams(OniStreamHandle* pStreams, int streamCount, int* pStreamIndex, int timeout)
{
	static const int MAX_WAITED_DEVICES = 20;
	Device* deviceList[MAX_WAITED_DEVICES];

	unsigned long long oldestTimestamp = XN_MAX_UINT64;
	int oldestIndex = -1;

	int numDevices = 0;
	for (int i = 0; i < streamCount; ++i)
	{
		if (pStreams[i] != NULL)
		{
			VideoStream* pStream = ((_OniStream*)pStreams[i])->pStream;
			Device* pDevice = &pStream->getDevice();

			// Check if device already exists.
			bool found = false;
			for (int j = 0; j < numDevices; ++j)
			{
				if (deviceList[j] == pDevice)
				{
					found = true;
					break;
				}
			}

			// Add new device to list.
			if (!found)
			{
				if (numDevices < MAX_WAITED_DEVICES)
				{
					deviceList[numDevices] = pDevice;
					++numDevices;
				}
				else
				{
					// Cannot wait on streams from more than MAX_WAITED_DEVICES devices.
					return ONI_STATUS_NOT_SUPPORTED;
				}
			}
		}
	}

	do
	{
		for (int i = 0; i < streamCount; ++i)
		{
			if (pStreams[i] == NULL)
				continue;

			VideoStream* pStream = ((_OniStream*)pStreams[i])->pStream;
			pStream->lockFrame();
			OniFrame* pFrame = pStream->peekFrame();
			if (pFrame != NULL && pFrame->timestamp < oldestTimestamp)
			{
				oldestTimestamp = pFrame->timestamp;
				oldestIndex = i;
			}
			pStream->unlockFrame();
		}

		if (oldestIndex != -1)
		{
			*pStreamIndex = oldestIndex;
			return ONI_STATUS_OK;
		}

		// 'Poke' the driver to attempt to receive more frames.
		for (int j = 0; j < numDevices; ++j)
		{
			deviceList[j]->tryManualTrigger();
		}

	} while (m_newFrameAvailableEvent.Wait(timeout) == XN_STATUS_OK);

	m_errorLogger.Append("waitForStreams: timeout reached");
	return ONI_STATUS_TIME_OUT;
}
开发者ID:Arkapravo,项目名称:OpenNI2,代码行数:79,代码来源:OniContext.cpp


注:本文中的VideoStream::getDevice方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。