Encoding Video for the Web with QuickTime Pro | Motionographer | Motion graphics, design, animation, filmmaking and visual effects
http://motionographer.com/encoding-video-for-the-web-with-quicktime-pro/
Juicer - a CSS and JavaScript packaging tool / Ruby - cjohansen.no
http://www.cjohansen.no/en/ruby/juicer_a_css_and_javascript_packaging_tool

minimizing and optimizing javascript files in a ruby project for deployment

java

For best performance, CSS and JavaScript should be served up using as few requests and bytes as possible. Juicer is a new command line tool that helps by resolving dependencies, merging and minifying files. It can even check your syntax, add cache busters to and cycle asset hosts on URLs in CSS files and more.

Juicer - a CSS and JavaScript packaging tool For best performance, CSS and JavaScript should be served up using as few requests and bytes as possible. Juicer is a new command line tool that helps by resolving dependencies, merging and minifying files. It can even check your syntax, add cache busters to and cycle asset hosts on URLs in CSS files and more

JPEGsnoop is a free Windows application that examines and decodes the inner details of JPEG and MotionJPEG AVI files. It can also be used to analyze the source of an image to test its authenticity.

asm_new = disassemble(update) asm_new_adjusted = adjust(asm_new, asm_old) asm_diff = bsdiff(asm_old, asm_new_adjusted) transmit asm_diff client:

We want smaller updates because it narrows the window of vulnerability. If the update is a tenth of the size, we can push ten times as many per unit of bandwidth. We have enough users that this means more users will be protected earlier. A secondary benefit is that a smaller update will work better for users who don't have great connectivity.

Software Updates: Courgette

nice update tool for smaller patches

VERY TINY BINARY DIFFS released by Google and Open Sourced.

A new differential compression algorithm for making Google Chrome updates significantly smaller. Courgette transforms the program into the primitive assembly language and does the diffing at the assembly level

逆アセンブルの差分？ server: asm_old = disassemble(original) asm_new = disassemble(update) asm_new_adjusted = adjust(asm_new, asm_old) asm_diff = bsdiff(asm_old, asm_new_adjusted) transmit asm_diff client: receive asm_diff asm_old = disassemble(original) asm_new_adjusted = bspatch(asm_old, asm_diff) update = assemble(asm_new_adjusted)

How To Automate Optimization and Deployment Of Static Content

post interessante sobre otimização de imagens para uso na web

Otimização de Imagens para Web | Tutoriais

Otimização de imagens para web.

punypng - PNG Image Optimization and Compression - Gracepoint After Five

- PNG Image Optimization and Compression - Gracepoint After Five

Make your pages load faster by combining and compressing javascript and css files | rakaz

"...what effect does the large-scale structure of the JS output code have on the DEFLATE algorithm of GZIP which is used to serve up compressed script?" Another instance of using knowledge of the specific file type to get gains in compression. Is there a web proxy running all this at which I can point my phone?

On JavaScript minification and compression.

better compression through instruction rearrangement. this guy drives me somewhat crazy, but he does cool work.

Use this Cascading Style Sheets, CSS Compressor to compress CSS to reduce CSS code size and make your web pages load faster. You can select from four levels of compression, depending on how legible you want the compressed CSS to be versus degree of compression. It is quick, easy and free!

Online code compressor for Cascading Style Sheets

Compress CSS code to reduce file size and make your sites load faster for free.

不要なスペース等を削除したり書き方を変更したりしてCSSのサイズを減らすことが出来るオンラインツール。via http://tokuna.blog40.fc2.com/blog-entry-1869.html

We are using Wordpress as CMS for this blog, hence we decided to install WP-Super cache plugin for Wordpress to improve the performance. This plugin will create static HTML files from your blogs post and other pages and save them on web server. These HTMLs are served to client whenever consecutive requests are made. Hence this greatly improve the performance as it reduce PHP parsing and database connections. Bandwidth control is an important task to be followed when your traffic is increasing. With limited monthly bandwidth hosting, your site may run out of bandwidth and thus result in increase in down time. Hence it is very much advisable to compress your websites response with GZip and then serve it to client. Compressing output can significantly improve your websites performance by reducing the size sometimes upto 80%

Jammit is an industrial strength asset packaging library for Rails, providing both the CSS and JavaScript concatenation and compression that you'd expect, as well as YUI Compressor and Closure Compiler compatibility, ahead-of-time gzipping, built-in JavaScript template support, and optional Data-URI / MHTML image embedding. Jammit is an open-source component of DocumentCloud.

Jammit is an industrial strength asset packaging library for Rails, providing both the CSS and JavaScript concatenation and compression that you'd expect, as well as YUI Compressor and Closure Compiler compatibility, ahead-of-time gzipping, built-in JavaScript template support, and optional Data-URI / MHTML image embedding.

ImageOptim will optimize your images — so they take up less disk space and load faster — by finding best compression parameters and by removing unnecessary comments and color profiles. It handles PNG, JPEG and GIF animations.

Learning to write clean, optimized CSS requires lots of practice and an unstoppable compulsive desire for neatness. Keeping your CSS trim and tidy isn’t all about feeding your crazy psychological need for cleanliness though, in the case of particularly large websites, the payoff is faster loading pages. Faster loading times equals increased usability and higher user satisfaction.

PNG Image Optimization

5-Minute PNG Image Optimization • Perishable Press

optimizaçao de imagens

This sort of nitty-gritty optimisation stuff appeals to my nerdy side. An interesting article, but it's also worth reading the comments for a few gotchas.

I've used some of the comments this script shells out to stand-alone, but this combines it all together and makes it nice and easy to extremely squeeze graphics (losslessly)

-ImageMagick: to identify the image type and to convert GIF files to PNG files. -pngcrush: to strip unneeded chunks from PNGs. We are also experimenting with other PNG reduction tools such as pngout, optipng, pngrewrite. Hopefully these tools will provide improved optimization of PNG files. -jpegtran: to strip all metadata from JPEGs (currently disabled) and try progressive JPEGs. -gifsicle: to optimize GIF animations by stripping repeating pixels in different frames.

Smush.it uses optimization techniques specific to image format to remove unnecessary bytes from image files. It is a "lossless" tool, which means it optimizes the images without changing their look or visual quality.

A good idea of image compression based on genetic algorithms.

is how DVDs work: a high res green image and two low-res imag

ure notice when someone tampers with your green!! The difference with red is ce

Say NO to fat CSS and js files with this #php script and mod_rewrite

This video demonstrates the loss in quality which occurs when saving a JPG 600 times.

A video depicting the progression of over-optimization in the JPEG format over time

[via iconolith] Open the last saved jpeg image Save it as a new jpeg image with slightly more compression Repeat 600 times

Video que muestra como pierde calidad una imagen en sucesivas compresiones JPG

A video showing the loss of quality resulting in saving a jpg image 600 times.

With regard to patents, VP8 copies way too much from H.264 for anyone sane to be comfortable with it, no matter whose word is behind the claim of being patent-free.

@IanYorston Some worrying comments about VP8 here http://x264dev.multimedia.cx/?p=377 - "VP8 copies way too much from H.264" – andykemp (andykemp) http://twitter.com/andykemp/statuses/14384128220

via http://www.reddit.com/r/programming/comments/c5zcy/the_first_indepth_technical_analysis_of_vp8/

visual

han LAME and ffmpeg’s AAC encoder is even worse.

The Web Developer's Resource

Your web server should be compressing your files before serving them to your users. Why? There is no reason not to, 99% of browsers know how to decompress them and if you're serious about hosting a professional web site, you should know every second it takes to get your content from your web server to your user counts.

Lekker zippen met PHP

ZipArchive

PNG compresses images without losing quality. JPGs are lighter. Don't use PNG for everything to reduce weight