Hallo, I have another question where I do not know exactly where to ask it. Please forgive me if this is the wrong list.
When capturing the same material under W98 (VirtualDub/huffyuv) and Linux (lavrec) with a Hauppauge Bt787-card I observed that the final result differs a lot: The colors with lavrec 'grayed out' (the color saturation is low). Especially green disappeared almost completely. I tried to understand the CCIR 601 standard because I assume that this is what the card should deliver. Searching the mail list, I found a thread about it. It seems to indicate that the card may give a wrong YCbCr signal. Since the green signal is the one which is computed from the luminance/chrominance signal, I would belive (although I am far from being sure because I am not an expert) that the relations between these signals is distorted. And these are my questions: - Is the YUV4MPEG2 stream supposed to be CCIR 601 compliant? Or should the full range be used (Y: 0-255 etc)? - Is there a filter available to finetune saturation, contrast, and brightness? - Can the Bt787 card be convinced to deliver a 'better' (whatever it means) stream? Thank you. Regards, Michael ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
