hyperion.ng/src/hyperion-v4l2/PixelFormatParameter.h

// getoptPlusPLus includes
#include <getoptPlusPlus/getoptpp.h>

// grabber includes
#include <utils/PixelFormat.h>

using namespace vlofgren;

/// Data parameter for the pixel format
typedef vlofgren::PODParameter<PixelFormat> PixelFormatParameter;

namespace vlofgren {
	/// Translates a string (as passed on the commandline) to a pixel format
	///
	/// @param[in] s The string (as passed on the commandline)
	/// @return The pixel format
	/// @throws Parameter::ParameterRejected If the string did not result in a pixel format
	template<>
	PixelFormat PixelFormatParameter::validate(const std::string& s) throw (Parameter::ParameterRejected)
	{
		QString input = QString::fromStdString(s).toLower();

		if (input == "yuyv")
		{
			return PIXELFORMAT_YUYV;
		}
		else if (input == "uyvy")
		{
			return PIXELFORMAT_UYVY;
		}
		else if (input == "rgb32")
		{
			return PIXELFORMAT_RGB32;
		}
		else if (input == "no-change")
		{
			return PIXELFORMAT_NO_CHANGE;
		}

		throw Parameter::ParameterRejected("Invalid value for pixel format. Valid values are: YUYV, UYVY, RGB32, and NO-CHANGE");
		return PIXELFORMAT_NO_CHANGE;
	}
}