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;
}