-
Help with a serious export issue
I have a file that is 2.82 GB (NTSC 30fps) and am trying to get it up on youtube. I haev tried every setting possible, but I can’t get a good render. When I do the mp4 the file is still 151MB and that is over the limit. Is there any combination of factors in the quicktime conversion that will let me get it down to just under 100MB and still have decent sound and video quality. I went for the iphone export, but it is 8MB and is horrible!
-
10 Replies
-
can I output the file at a lower rate for the initial .mov file then conver to .mp4 for yet a smaller file?
-
[nelsonmay10] “haev tried every setting possible, but I can’t get a good render. When I do the mp4 the file is still 151MB and that is over the limit.”
Let’s do the math. That is a four billion to one data compression exercise for the video alone, not counting audio. I’d say, yeah, something is gonna get lost.
No, you cannot compress it and then compress the compressed to gain more compression. Well, you CAN, but it’s cleaner and quicker to do the job once.
Compressor should be able to give you a 320×240 image size at 5 frames a second with hundreds of colors to fit that target.
Seriously, there are dozens of youtube help files and youtube user support sties. I’ve never used any of them but I hear some of the more dedicated ‘tubers have helpful suggestions if you know where to go and ask nicely.
bogiesan
-
It should be simple to create an under 100meg movie from a 2.82Gig file.
Let’s break it down. A 2.82 gig file is, as DV NTSC, roughly 14 minutes long. I recently exported a simple 320×240 15fps flash movie with 22mhz, mono, 16bit audio that was 4 minutes long. It looks great and came out to 16megs. So… 14/4=3.5 3.5x16megs=56megs. A good quality flash file of your movie should come in under 60megs. The data rate I use is generally 500-600kb/sec. Some people don’t lower the frame rate to 15fps, but they should. Especially if you need to bring the size down. Make sure you’re deinterlacing on encode as well otherwise you’ll get mush.
-
Ah Bret, that’s all fine and dandy, except Youtube doesn’t accept Flash video files…
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY
-
500kb/sec is 500kb/sec. I use same specs for wmv (actually better at same rate) and qt (h.264 even better).
-
[David Roth Weiss] “Ah Bret, that’s all fine and dandy, except Youtube doesn’t accept Flash video files…”
I may be wrong or misremembering.. but I coulda swore I read something just recently that stated that sending YouTube a properly-sized flash movie was the best means to maintain quality. The article stated that if it’s within specs they’ll use it as-is, whereas they re-compress any other format to flash before posting.
—
Video Photographer / Avid Editor / Final Cut Neophyte -
[N.Adam.Smith] “I may be wrong or misremembering.. but I coulda swore I read something just recently that stated that sending YouTube a properly-sized flash movie was the best means to maintain quality.”
Yes, you may be wrong or misrembering cus here’s the help FAQ on the subject right off YouTube:
What video file formats can I upload?
YouTube accepts video files from most digital cameras, camcorders, and cell phones in the .WMV, .AVI, .MOV, and .MPG file formats.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY
-
But then again, maybe I’m not misremembering at all!
Here’s a very nice looking Creative Cow promo posted to YouTube in FLV format.
https://www.youtube.com/watch?v=9YJZ1tYUytY
From: arabinowitz
About This Video
Upload Format: Flash FLV
Resolution: 450 x 337
Fr…
Upload Format: Flash FLV
Resolution: 450 x 337
Frame Rate: 30 FPS
Key Frame Every: 45 Frames
Video Codec: Sorenson Spark Pro
Audio Codec: Frauhoffer MP3
Video Data Rate: 2000 Kbps
Audio Data Rate: 128 Kbps
Total Data Rate: 2125 Kbps
Sorenson 2-Pass VBR
Total File Size: 15914 KBSearching for “FLV Upload” I got 133 hits, including several How-To videos.
—
Video Photographer / Avid Editor / Final Cut Neophyte -
[N.Adam.Smith] “Here’s a very nice looking Creative Cow promo posted to YouTube in FLV format.”
YouTube now screws this stuff up unfortunately. Aharon had figured out a way to maximize quality by staying under the YouTube 100MB limit so they wouldn’t recompress everything. Apparently someone at YouTube caught on and you can’t upload stuff that looks this good anymore.
Now they recompress every single video that comes into their pipeline no matter the original size so it’s just about impossible to get any sort of good quality on YouTube anymore. Aharon and I had a long discussion a few months ago when I was trying to upload a high quality 30 second spot to YouTube and he said you just can’t anymore.
Walter Biscardi, Jr.
https://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.All Things Apple Podcast! https://cowcast.creativecow.net/all_things_apple/index.html
Read my blog! https://blogs.creativecow.net/WalterBiscardi
-
Ahh.. well that’s a bummer.
I did see FLV uploads dated as recently as a week ago, but nothing that really looked as good as the year-old CC video, guess if they’re re-compressing everything that’d explain it.
—
Video Photographer / Avid Editor / Final Cut Neophyte
Reply to this Discussion! Login or Sign Up