Hacker Newsnew | past | comments | ask | show | jobs | submit | tedsbardella's commentslogin

Metro is sounding a lot like Microsoft Bob. I loved Bob it was very interesting and fun for a couple of minutes


The kind of people who are so worried about "internet piracy" also want to sterilize poor people


This is really cool - thanks for making this.


Please explain

bash$ mencoder -ovc x264 -oac mp3lame -x264encopts \ subq=6:partitions=all:8x8dct:me=umh:frameref=5:bframes=3:b_pyramid=normal:weight_b \ -o hoax.avi ray_480p_normal.mp4

then o god o god.. is this a porn?


Their proof is an unoptimized video vs an optimized video.

Their product is a standard recommended video optimization.

The people behind RayStream are either lying and/or don't understand what they are talking about.


If it is standard then why the author was surprised by the compression ratio?


Read this page: http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-x264.html Each of the keys in the string has a value which is explained in the document.

Basically they're claiming something revolutionary, which in the end is just using the x264 encoder with the right fine-tuned options.


They're not "fine-tuned" in the slightest; they're cargo cult options that are going to give worse results on a compression-per-speed basis than the presets that already come with x264. Many of those options are completely redundant; they're specifying things that are already default!

There are quite literally dozens of scam companies built off x264, claiming in many cases that they made an "incredible" magical proprietary encoder with "revolutionary" compression. Of course they just run x264.

Fortunately it is extremely easy to identify an x264-encoded stream, even if all the headers are stripped and rewritten: it would be extremely difficult to modify x264 to cloak such a stream entirely unless you knew the code line for line, and even then, some of the features of x264 that are responsible for much of its compression advantage are extremely obvious in an analyzer (variance adaptive quantization).


Fine tuned in the sense then that it's beyond the defaults.


But it isn't, really. If you want to trade compression for speed, the presets listed on the top of the help page are far more effective.

subq=6 Default is 7. This makes compression worse.

partitions=all Higher than the default, but for negligible gain. This is only enabled on the slowest presets.

8x8dct The default.

me=umh Higher than the default, for small gain.

frameref=5 Default is 3; 5 gives small gain.

bframes=3 The default.

b_pyramid=normal The default.

weight_b The default.


Off topic but, as an EVE player, seeing you denouncing a scam is hilarious.


that 59 seconds guy is creepy.


There should be a link to this article at the top of the page.


That one picture looks like something out of a Japanese horror film


This is very interesting. I was wondering why I got spam through to my Gmail account this weekend. This is the first time I can definitely see the


I have a flashblock extension - so the facebook part was blocked but the +1 was there. Interesting all the problems with the page though


"Bing is about fast decisions, combining the topical graph with your social graph - as well as the geospatial graph - to connect the real world and the digital universe like never before." - MLKjr.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: