Image size, can someone explain me ?

jvincent wrote on 4/12/2006, 4:48 AM

Hello,
I have some problems with video sizes:
I have 2 mpeg2 files (both are : 720x480x32 : 29.970fps)
When i placed them in Vegas timeline 1st is OK but second doesn't take all the preview area, threre is a (black) frame all around the image.
Why this ?
It's not the first time i see two files whih same image size that have different proportion when i preview them.
Is there an other parameter i omitted ?
2 nd file has been extracted from a dvd (with DVDx) then rendered with Vegas to have the same format as first file.
Thank you very much for help.
VINCENT

Comments

Chienworks wrote on 4/12/2006, 5:52 AM

Some media files have black edges. Often when converting from analog to digital some systems will mask the edges because they are distorted. The edges usually aren't seen on a television anyway, so you wouldn't miss them.

Position the cursor somewhere in that clip so that you have an image displayed rather than just all black. Open up Pan/Crop, right-mouse-button click in the cropping frame and choose Restore. Do you see the black border there? If so, it's part of the video clip. You can use the Pan/Crop tool to crop away the black border if you want to, but i would suggest leaving it there if your final output is television.

jvincent wrote on 4/12/2006, 11:18 AM

Thanks Chienworks for explanations. (Yes i see black borders in Pan/Crop after restoring by right-click., you are right : borders are included in the video file). I will try to see results on a TV. Thanks again.
Vincent