Large Video

Ragabashyo · Post by **Ragabashyo** » Thu Aug 03, 2006 10:38 pm

Ok, I'm not sure what to do. I have an AMV I made about a year ago. Due to my inexperience and no "how to" guides on compression (yes, because I didn't look...I did try asking some authors of AMVs but they weren't much help), it is 125MB, 87MBs zipped. I don't have the original project on my computer anymore because I've reformatted since then, so I can't just recompress with that. I could try to rebuild the amv from scratch again, but I don't envy that. I don't want to recompress its current form because I already feel I've sacrificed as much quality as possible just to get it to its current size (this is due to my inexperience at the time).

a-m-v.org doesn't accept videos larger than 100MBs. I contemplated putting it on my school server, but I feel that with as many downloads as may happen here they would notice and ban me from using school storage. I tried putting it on Google video, but they rejected it (i'm guessing because of copyrights). It's too large for the other free video sites. I looked at some pay sites, but I'm pretty sure my bandwidth usage would go way beyond what they offer (10GBs was the highest I saw, meaning roughly about 110 dls...I think this place would suck that up pretty quick hehe)

Does anyone have any suggestions? I've already donated here (although it hasn't updated) but I'm willing to pony up some additional cash if it would cover bandwidth usage for me.

Kariudo · Post by **Kariudo** » Thu Aug 03, 2006 10:56 pm

if you have the finished product (prefferably unzipped...if it is zipped, just unzip it) you can try to recompress it.

Since you mentioned the guides, I assume that you've at least seen the title of EADFAG (ErMaC and Abolute Destiny's Guide to all things Audio and Visual mk 2)

this guide has a good section on compressing with xvid in virtualDub(/Mod).
but
I'd reccomend re-encoding your vid with a lossless codec (lagarith or huffyuv) to try to get the best quality possible in your case. (re-compressing with lossy codecs kills the quality)

I'd also reccomend reading up on avisynth (if you haven't already). Deen is a smoothing filter/function for avisynth that helps with compression. FastLineDarken helps make the lines more visible/sharper.
Also, you should crop a few pixels off of your video (to eliminate any unneccesary information, like black borders that are common on the left and right sides of dvd footage)

fastLineDarken *you need to use import("filepath") in avisynth to make this work
Deen ...not a direct link, but it's pretty easy to find
crop() is included with avisynth, paramaters are int left side, int top, negative int right side, negative int bottom) ex. crop(4,4,-4,-4)

as a last resort, you may have to re-create your vid

Willen · Post by **Willen** » Fri Aug 04, 2006 12:39 am

What format and codec is the video in? Also, if the audio isn't compressed, changing that one thing will probably get it under 100MB.

Ragabashyo · Post by **Ragabashyo** » Fri Aug 04, 2006 7:30 pm

Ok, gonna try Lagarith. *fiddles with things briefly and runs compression*

....huh...my file turned from 125Mbs to 621Mbs lol. I'll have to read through the how to guide better tomorrow, I only had time to skim it today.

As far as format and audio compression, I believe it's Mpeg 1, and when I made the video I compressed the audio into 1.5Mb Mp3 before inserting it into the project.

I'll look into this more when I have more time tomorrow. Thanks for the help so far though.

Wish me luck!

Zarxrax · Post by **Zarxrax** » Fri Aug 04, 2006 8:25 pm

I would guess that your mpeg-1 is using PCM audio, which is uncompressed. Whether or not your audio was compressed before you started editing or not is irrelevant.

You need to get TMPGenc, and then go to file>mpeg tools. Go to the simple de-multiplex tab, and load in your video, and press run. It will seperate your audio and video streams. Take a look at the audio and see how big it is. I'm guessing it's probably around 30-35mb.

If that's the case, then you need to properly compress your audio, and then do simple multiplex with both the video stream that you just de-multiplexed and the compressed audio.

Ragabashyo · Post by **Ragabashyo** » Fri Aug 04, 2006 11:31 pm

Nice, Tmpgenc worked. got it down to 41mbs. Many thanks.

If you guys want to see what you helped me get up here I'll be posting it in the announcements shortly. Thanks all for your help!

Ragabashyo · Post by **Ragabashyo** » Sat Aug 05, 2006 12:10 am

Or not. Apparently AMVs with Evanesence are autoblocked. *sigh* wish I had noticed that before I went through all this trouble. So, sadly you guys won't be able to see it after all

Thanks anyway though. Next time!