Thanks a lot for answering Herman. comments below On 2007-12-14 20:51, Herman Robak wrote: > On Fri, 14 Dec 2007 21:02:17 +0100, juan <[EMAIL PROTECTED]> wrote: > > > Hi there, I'm having some issues rendering my project to a final video > > file. it just seems impossible to render it in the proper ratio. > > > > My captured.dv file is in "raw dv" format, frame size is 1024x756 > > pixels. I can open this file with cinelerra and work with it, not > > problem at all - I see the result in real time nice and perfect. > > The frame size is 720x576, which is stretched to 1024x576 on the screen.
that absolutely makes sense. I didn't even thought it was being stretched. > > Exporting to other formats (MP2, Quicktime4Linux, etc.) does render the > > video at 1024x756 but with black bars at the left and right the screen. > > > > Changing the projects settings to 720x576 (that is 4:3 I think) allows > > me to export to raw dv, but the video is reduced horizontally to 720 > > pixels. > > That's because you have not scaled the output to 1024x576. > It is still 720x576. It is only _displayed_ as 1024x576, > because of the 16:9 setting. Now I changed my project settings to Width: 720 Height: 576 W/H ratio: 1:1 Color model: YUV 8 bit Aspect ratio: 16:9 so I can render to Raw DV, no problem. And there are not black bars at the sides. BUT the video is not stretched in the player. I used Kino to capture the footage, and the captured.dv file is stretched in the media player. I use that captured.dv in cinelerra, export it, and the rendered.dv is not stretched - it is played ad 4:3 DV despite I set 16:9 in the project settings. could this be a bug? (I doubt it) Is there any other tool which allows me to just set this "display flag" to 16:9 on the rendered.dv file? > > these are my "settings -> set format" values: > > > > Frame rate: 25.0000 > > Width : 1024 > > Height : 576 > > W/H Ratio: 1/1 > > Color model: RGB 8 bit > > Aspect Ratio 16:9 > > DV only allows 720 pixel wide images. So set the resolution to > 720x576. And use YUV as colour model instead of RGB, for better > performance and quality. > > > > Can somebody explain what to do please? I just tried with many > > combinations and ways and I'm still unable to render. > > The aspect ratio setting in Cinelerra is a _display setting_. > It's not a render setting. I don't think it affects the rendered > output at all, only how the video is displayed on the screen. > > 16:9 DV is an anamorphic format; the pixels are not square. > It has exactly the same number of pixels as 4:3 DV. The 720 pixels > have to be stretched to produce a 16:9 image. > The only thing Cinelerra has to do (I don't know if it does...) > is to stick the correct "aspect ratio" data in the rendered raw DV, > so that a player will know how to stretch the image correctly. > > By the way; 4:3 DV does not have square pixels either. AND the > full 720x576 frame is not exactly 4:3 either! Don't you believe > me? Well, the BBC said it: > http://www.bbc.co.uk/commissioning/tvbranding/picturesize.shtml > Thanks Herman, I believe you! :) I had totally no idea about 16:9 misteries. _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
