After ,compression , web, youtube

[kilmyneo]

I´ve been searching all kind of tips about compression, for web or youtube.
well, a lot of people talk about H264 quicktime codec ( there i couldn´t find), i only have H263 .
i have a 1 min. 720 x 480 comp , and i render using after effect with quicktime format, full quality frame rate 30, 44.1 Khz in 320 x 240 size and the final render its 77MB!!!! for 1 min. ??? its too heavy.
cant somebody thellme more specifically how to reduce the weight whit a good quality? thanks again.

[Matt Grunau]

the h.264 codec is only available with Quicktime 7. I do a lot of commercials in the area where I live, and even using Sorenson 3 at 75% quality (full frame), I can have a 30 second commercial come in between 17-24 megs. I don't know why your videos would be as large as they are.

DivX and Xvid are both very good codecs for .avi's, though I don't know that Youtube will allow that. Most of Youtube's videos have been converted to Flash, something you can do right out of After Effects, under the File>Export menu.

77 megs is huge for 1 minute, especially at a frame size of 320x240. Look into Quicktime 7 (which unfortunately has a nasty habit of messing up After Effects in Windows), or look at DivX or Xvid. Also, unless you need high quality stereo audio, change it to 32k mono, and that will help. There are even more options on how to encode audio with compression,but since I rarely use audio compression, I can't help you with that.

Even encoding to an .mpg2 will give you good results, and a much smaller file size.


Again, you could just try exporting from AE into Flash, and may get more acceptable results that way.


Hope that helps.


M

[kilmyneo]

thanks it was useful... i will try.
i also download the Quicktime 7 and give me an error and i could not open any mov file, and after effect crash when it open, i try to do more search, thanks again.

[Matt Grunau]

thanks it was useful... i will try.
i also download the Quicktime 7 and give me an error and i could not open any mov file, and after effect crash when it open, i try to do more search, thanks again.

Quicktime 7 plays havoc with After Effects, and I am not sure why. But you can download what is called "Quicktime Alternative", which supports all the options and codecs of Quicktime 7, and even includes the mpg encoding, something you have to pay for in Quicktime.


http://www.free-codecs.com/download/QuickTime_Alternative.htm

And it's only 12 megs.


EDIT: I don't think this is software piracy, as it is a free program, and does not violate Apple's program. But I wanted to make it clear to those interested.

[kilmyneo]

cool this alternative have the H264 codec¿???, well i guess i most to download again Q7 because i uninstall it , or this alternative will run in Q6???
oh i forgot, the 1 min. composition its a Reel whit all my works.

[kilmyneo]

ok i fortunally could render whit H264 codec in 320 x 240 80 % quality...from 77Mb is now on 28 Mb soon i will post the reel on youtube and place the link here so everybody can see it, if anyone have the right settings to use whit this codec (h264) to reduce Mb please thelme, thanks again.

[Demistate]

Check out the compression form for more help.

And if you don't mind another compression step, you can use MeGUI to re-encode your files to h.264 for free.

I wrote a tutorial (http://alex.nigma.info/2007/h264-tutorial/) for it. (WindowsXP)

[kilmyneo]

wow, thanks demistate

[BEENYWEENIES]

After many trial-and-error comparisons I personally think MPEG-4 is the best compression option for distribution. The file sizes are comparable to those of H.264 encoded files, but it renders much, much faster. It's also compatible with a far wider array of playback software. Flash video (FLV) is about the same in terms of quality-to-size ratios, but is best used when embedding clips into web pages.