hyperion.ng/include/utils/PixelFormat.h

#pragma once

#include <string>
#include <algorithm>

/**
 * Enumeration of the possible pixel formats the grabber can be set to
 */
enum PixelFormat {
	PIXELFORMAT_YUYV,
	PIXELFORMAT_UYVY,
	PIXELFORMAT_BGR16,
	PIXELFORMAT_BGR24,
	PIXELFORMAT_RGB32,
	PIXELFORMAT_BGR32,
	PIXELFORMAT_NO_CHANGE
};

inline PixelFormat parsePixelFormat(std::string pixelFormat)
{
	// convert to lower case
	std::transform(pixelFormat.begin(), pixelFormat.end(), pixelFormat.begin(), ::tolower);

	if (pixelFormat == "yuyv")
	{
		return PIXELFORMAT_YUYV;
	}
	else if (pixelFormat == "uyvy")
	{
		return PIXELFORMAT_UYVY;
	}
	else if (pixelFormat == "bgr16")
	{
		return PIXELFORMAT_BGR16;
	}
	else if (pixelFormat == "bgr24")
	{
		return PIXELFORMAT_BGR24;
	}
	else if (pixelFormat == "rgb32")
	{
		return PIXELFORMAT_RGB32;
	}
	else if (pixelFormat == "bgr32")
	{
		return PIXELFORMAT_BGR32;
	}

	// return the default NO_CHANGE
	return PIXELFORMAT_NO_CHANGE;
}