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square vs non-square
Our goal is to capture standard def dv footage, and output it to the web (flv) retaining the highest quality (of course!).
The argument around the office is whether to capture at square pixel as our final output would be 320×240 flv or capture ntsc 4:3 preset and render out to…what? square, non square?
So far we capture ntsc, render out dv stream and flv it from their using squeeze. are we wrong? some say a quality drop has been noticed since not using apple pixlet as an export from final cut.
just need some advice and answer’s…
thanks! -
9 Replies
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Edit in non square (that’s the video native form, DV=720×480) and then change to square when you encode (320×240) with whatever software you use to encode.
Jeremy
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can you elaborate a bit, so I have seem smarter when I talk to my peers? such as, why this is the better method?
thanks
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SD digital video is non square pixel. It is best to edit in a form that is native to video. It’s better for FCP, it’s better for monitoring while you work and you will truly have a what you see is what you get workflow. Then when it’s time to make web movies, you will simply create the movie 320×240 effectively making the movie square pixels for use on monitors that display square pixels. SD CRTs are non square pixel displays, computer monitors are square pixel displays. Make sense?
Jeremy
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is their any quality drops between capturing sqaure vs non square?
the problem is the boss has noticed a drop in quality and we are trying to improve it and streamline a workflow.
we capture ntsc dv, edit the same render to dv stream and squeeze to flv, should we render to a different codec then squeeze? -
Nobody captures non-square as square. Yes, you’re losing 80 pixels of information. How would you even do that? If you you’re capturing DV you can’t adjust anything. It captures as it is. Anyway, all video is non square. Capture it. Edit it. Then export it to the format of choice. Beyond the intricate details of your compression software (compressor, sorenson squeeze, cleaner, etc.) it’s really that simple.
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Yeah, you will be taking the video out of it’s native form and changing it. Better to keep it in it’s native form (I think that’s the third time I have said this in this thread). What do you mean you render to dv stream? You mean export out of FCP to DV movie? Where is the quality loss? Is it before or after the encode?
Jeremy
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from final cut: export – qt conversion – dv stream
.dv file into sorenson to flv
sorry about the redundancy, just need firepower to tell the boss man what is going on.
My guess would be the loss in quality, not significant, but noticeable, would be from the final cut export. I understand that sorenson flv will make it a square pixel format, but should we go to square before that? from final cut to pixelate then to sorenson?
wouldn’t that compress, then compress again. -
[lear2006] “from final cut: export – qt conversion – dv stream”
Dude that’s your problem. I thought that’s what you meant about DV stream, but I wasn’t sure. Do you do the encoding on the same machine as you edit? If so go to export quicktime movie (not quicktime conversion) and leave the recompress and self contained boxes unchecked and then bring that reference movie into Squeeze. If the encoding is done on a separate machine, do the same steps, expect check the make movie self contained box (leave the recompress unchecked).
ONCE AND FOR ALL, LEAVE THE VIDEO IN NON SQUARE PIXELS UNTIL THE FINAL STEP OF ENCODING!!!! !@!!!!!! ! ! !!!!!! !!!!!! ! ! ! ! !**
Jeremy
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ahhhhhhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!!!
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