16 X 9 letterbox mask at DVinfo.net

Mark A. Foley · January 21st, 2004, 03:39 AM

I've downloaded the .png letterbox mask at: http://www.indigipix.com/videotips.htm

Video render for NTSC works great....however, if render for web-based playing, and viewed with windows media player, the very top and bottom of image sometimes bleeds though no matter how I adjust the crop....

any thoughts?

Graham Bernard · January 21st, 2004, 03:50 AM

Hiyah! When you say "bleeds" through, do actually mean bleed OR do you actually "see" the other image?

Grazie

Graham Bernard · January 21st, 2004, 04:17 AM

Ah yes . . I've just repeated the "bleed". I'm using PAL . . but I do get the video appearing above and below in Windows Media PLayer . . I understand. Have you tried NOT using the PNG and just using the Vegas widescreen format? I've done this too and although I've then sent the signal out to my monitor - a standard 4:3 tv, I do get it to work . . I've just now played this same Vegas widescreen without using the stretch video option, and it appears to work in WMP . . . so no use of the png and let Vegas do it - yeah? Try it out, just to confiem I ;ve got it in the "Ball Park" - yeah?

Grazie

Mark A. Foley · January 21st, 2004, 05:47 AM

Grazie...
Don't you get distortion of the original 4:3 video when using Vega's 16 X 9 preset?

Rob Lohman · January 21st, 2004, 05:58 AM

Take a look at my 16x9 letterbox calculator, I've also put up the
most common masks for everyone to download. They seem to
work fine for me.

Everybody seems to be using different calculations to get the
size of the mask. My formula and reasoning behind it are pretty
well explained on the page.

Graham Bernard · January 21st, 2004, 06:01 AM

Rob you ARE the star . . Great stuff . .love it . .I'm off to try it out . .

My best regards,

Grazie

Mark A. Foley · January 21st, 2004, 06:03 AM

Rob,
I'm in the middle of another project right now, otherwise I would try your mask....

Have you tried yours with rendering out to .wmv? to see if it does fully mask?

Rob Lohman · January 21st, 2004, 06:03 AM

I just changed the link to point to my new site since the other
one will be going away soon. Make sure you follow the latest
link.

The calculator is also going to be updated in the coming month
or so with some additional calculations and changes to the
javascript to make it more compatible and less buggy.

Rob Lohman · January 21st, 2004, 06:08 AM

I didn't check it out with WMV but did with MPEG and full DV
output. As far as I know they are watertight. Do MAKE SURE
you are importing these masks wtih a SQUARE PIXEL (1.0)
aspect ratio (default on any NLE I've seen). So don't change it
to DV aspect ratio. My calculations already used the pixel aspect
ratio and therefor don't need any correction in the NLE.

Mark: maybe you can just check it out on a little scene in a new
test project? Render it out to WMV and let me know how it goes.

We did use my calculations for the Lady X project as well.

Mark A. Foley · January 21st, 2004, 06:25 AM

Bingo Rob...that was it...luckily I had some footage from my other project that I had tried another mask with....your mask worked perfectly....

If I see anyone else asking about this subject on other boards/threads, I'll direct them to your website....
Thanks....

Graham Bernard · January 21st, 2004, 06:31 AM

Mark . . just posted a link over at the Vegas site . .okay Rob? - Just thought it was too good not to share.

Thanks again,

Grazie

Rob Lohman · January 21st, 2004, 06:46 AM

Sure, as long as you used the new link:

www.visuar.com/letterbox/calc.htm

Graham Bernard · January 21st, 2004, 07:17 AM

Yup, just checked - someone visited your site already!

Thanks again Rob.

January 21st, 2004, 03:39 AM	#1
Mark A. Foley Major Player Join Date: May 2003 Location: Bonaire, Ga. Posts: 356	16 X 9 letterbox mask I've downloaded the .png letterbox mask at: http://www.indigipix.com/videotips.htm Video render for NTSC works great....however, if render for web-based playing, and viewed with windows media player, the very top and bottom of image sometimes bleeds though no matter how I adjust the crop.... any thoughts?

January 21st, 2004, 05:58 AM	#5
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Take a look at my 16x9 letterbox calculator, I've also put up the most common masks for everyone to download. They seem to work fine for me. Everybody seems to be using different calculations to get the size of the mask. My formula and reasoning behind it are pretty well explained on the page. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

January 21st, 2004, 06:01 AM	#6
Graham Bernard Old Boot Join Date: Aug 2002 Location: London UK Posts: 3,633	Absolutley Brilliant!! Rob you ARE the star . . Great stuff . .love it . .I'm off to try it out . . My best regards, Grazie

January 21st, 2004, 06:03 AM	#8
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I just changed the link to point to my new site since the other one will be going away soon. Make sure you follow the latest link. The calculator is also going to be updated in the coming month or so with some additional calculations and changes to the javascript to make it more compatible and less buggy. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

January 21st, 2004, 06:08 AM	#9
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I didn't check it out with WMV but did with MPEG and full DV output. As far as I know they are watertight. Do MAKE SURE you are importing these masks wtih a SQUARE PIXEL (1.0) aspect ratio (default on any NLE I've seen). So don't change it to DV aspect ratio. My calculations already used the pixel aspect ratio and therefor don't need any correction in the NLE. Mark: maybe you can just check it out on a little scene in a new test project? Render it out to WMV and let me know how it goes. We did use my calculations for the Lady X project as well. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

January 21st, 2004, 03:50 AM	#2
Graham Bernard Old Boot Join Date: Aug 2002 Location: London UK Posts: 3,633	Hiyah! When you say "bleeds" through, do actually mean bleed OR do you actually "see" the other image? Grazie

January 21st, 2004, 04:17 AM	#3
Graham Bernard Old Boot Join Date: Aug 2002 Location: London UK Posts: 3,633	Ah yes . . I've just repeated the "bleed". I'm using PAL . . but I do get the video appearing above and below in Windows Media PLayer . . I understand. Have you tried NOT using the PNG and just using the Vegas widescreen format? I've done this too and although I've then sent the signal out to my monitor - a standard 4:3 tv, I do get it to work . . I've just now played this same Vegas widescreen without using the stretch video option, and it appears to work in WMP . . . so no use of the png and let Vegas do it - yeah? Try it out, just to confiem I ;ve got it in the "Ball Park" - yeah? Grazie

January 21st, 2004, 05:47 AM	#4
Mark A. Foley Major Player Join Date: May 2003 Location: Bonaire, Ga. Posts: 356	Grazie... Don't you get distortion of the original 4:3 video when using Vega's 16 X 9 preset?

January 21st, 2004, 06:25 AM	#10
Mark A. Foley Major Player Join Date: May 2003 Location: Bonaire, Ga. Posts: 356	Bingo Rob...that was it...luckily I had some footage from my other project that I had tried another mask with....your mask worked perfectly.... If I see anyone else asking about this subject on other boards/threads, I'll direct them to your website.... Thanks....

January 21st, 2004, 06:31 AM	#11
Graham Bernard Old Boot Join Date: Aug 2002 Location: London UK Posts: 3,633	Mark . . just posted a link over at the Vegas site . .okay Rob? - Just thought it was too good not to share. Thanks again, Grazie

January 21st, 2004, 06:46 AM	#12
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Sure, as long as you used the new link: www.visuar.com/letterbox/calc.htm __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

January 21st, 2004, 07:17 AM	#13
Graham Bernard Old Boot Join Date: Aug 2002 Location: London UK Posts: 3,633	Yup, just checked - someone visited your site already! Thanks again Rob.