Help needed: Trimming top/bottom/sides but NOT with compressor!

[Rafael Amador]

Hi Jiggy,
[Jiggy Gaton] “The odd size is what I found to produce the best results with this project on utube, and I am not the only one. Miley Cyrus official videos and others are doing it too.”
I don’t know Jiggy, but this breaks all the theory. read this about the MP4/h264 Macroblocks structure,from Wikipedia:

“Variable block-size motion compensation (VBSMC) with block sizes as large as 16 16 and as small as 4 4, enabling precise segmentation of moving regions. The supported luma prediction block sizes include 16 16, 16 8, 8 16, 8 8, 8 4, 4 8, and 4 4, many of which can be used together in a single macroblock. Chroma prediction block sizes are correspondingly smaller according to the chroma subsampling in use”.

This clearly states that your picture sizes must to be multipliers of “4”.

I have never had any flickering problems with clips uploaded to The COW or Vimeo.
(Please have a look to some Lao clip: https://www.vimeo.com/7325300
love Nepali:-)

[Jiggy Gaton] “PS. See the Dec 09 issue of Creative Cow Magazine for a pic of Shubu the sis, she’s lookin better then Miley in my opinion… “
I’ll have a look I wasn’t aware that the magazine was ready.

Cheers,
rafael

http://www.nagavideo.com

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[Jiggy Gaton]

Yes Raf, this does break all the theory, and I think we are only surprised when this happens because we are old farts yes? But seriously, this is our protools engineer’s first project where I am just doing QA and mentoring. I am old enough to be his grandfather, and he came up with the fix to get near perfect video out to you tube (or at least something that looks the same as what is on the FCP timeline). I have the flickering in FCP, and that sequence is not sized strange (normal PAL 16:9). The sizing occurs on Quicktime export. I really am going to post all these settings as soon as I get this onto youtube…and Shubu out of the studio…

Phoenix Studios Nepal: A small A/V Production House in Kathmandu.

[Jiggy Gaton]

well duh! That did the trick David and you win the star. Thx so much, after all these years of not caring about the edges, now I know how to fix them. cheers,
jigs

Phoenix Studios Nepal: A small A/V Production House in Kathmandu.

[Josh Olenslager]

I’ll check it out once I get into the office — believe we’re on the same version, got upgrade recently — but (although you’ve solved already) did you try the presentation specs in QT inspector? Have to highlight the title line, not just the video track. Not sure if there’s a custom presentation size in that, but might be, or a crop dialogue . . . and you’re just flat exporting this out of QT right and setting the frame size there? Rafael is right, too. I’ve seen all kinds of zaniness on odd line ratios, mostly in overlays and edges, but things get out of balance and cause flickering like mad.

Josh

[Jiggy Gaton]

Thanks josh, yes problem solved right on the timeline in FCP, just upsized a nested sequence holding the project clips a scrunch, problem solved thx to David above.

Still have not found crop in Qtpro newest level – but I could have sworn I used it years ago…maybe they de-featured QTPro now they have that newfangled viewer – but that makes no sense! Anyway, thx to both u and Rafael; that’s what i love about this place…gotta problem, u get a fix (or two) in a jif…

Phoenix Studios Nepal: A small A/V Production House in Kathmandu.

[Jiggy Gaton]

Here are those settings I promised for doing something that defies theory and logic, in order to get a really nice video rendition for youtube upload (source/sequence was normal SD Pal 16:9)…

For the life of me I could not recreate these settings in a custom compressor – exactly – and anything just close did not make for good video on the utube. Hope it helps someone down the line…

@ Raf, the tip on Jpeg was a logical one, but did not work as well as this.

One last note before I put this one to bed (the vid will be up in about 24 hours, just search on Shubu Thapa if you want to see)…

What defies logic is that this export from FCP looks bad on the desktop, but when uploaded to youtube improves. Conversely, a good looking export using Compressor in the normal way looks good before google mangles it, but not when downstreaming from youtube. That’s nuts! And using the new “Share” form the FCP timeline is some kind of bad joke.

Cheers!
Jigs

Phoenix Studios Nepal: A small A/V Production House in Kathmandu.

[David Roth weiss]

[Jiggy Gaton] “well duh! That did the trick David and you win the star. “

Jiggy,

You are most welcome. I can assure you, if there is a way to get work out the door faster and more efficiently and with a minimum of BS, I’m your man for the job. It’s just how my brain works.

Interestingly BTW, I’m pretty darned sure the crop function does exactly the same thing, because I think you’ll find that a clip is exported at the original pixel dimensions even after the crop is applied. So, I think it’s not really cropping anyway, it’s just scaling up by a certain number of pixels rather than by a percentage, and it just sounds a bit better, so it doesn’t freak out the average person who’s afraid they’re slightly degrading their otherwise pristine video.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, Indie Film & Documentary, and Film History & Appreciations forums.

[Jiggy Gaton]

Dave that’s too funny…ya think! I am assuming u are talking about the crop in compressor, where they just give u a place in the UI to put in numbers for top/bottom/left/right but neglect to mention what those numbers actually mean…percent? pixels? And then the display preview there makes it look like a crop by placing that red boundary on the INDISE of the frame, unlike the canvas in FCP. If this is true, that’s just conspiratorial:)

Phoenix Studios Nepal: A small A/V Production House in Kathmandu.