Wikipedia:Reference desk/Archives/Computing/2009 November 15

= November 15 =

Dual-core optimized software player for 1080p movies
Hi all,

does anyone know a player software able to play .ts 1080p HDTV movies? VLC eats up 50% CPU load (as it's single-core-only) and so the video stutters.

Thanks 93.104.53.57 (talk) 02:53, 15 November 2009 (UTC)


 * MythTV can 1080p. I don't know what they use for playing videos.  It may be built into the entire package. --  k a i n a w &trade; 02:58, 15 November 2009 (UTC)
 * The problem is not playing the 1080p. The problem is taking advantage of the GPU and the second core, which VLC can't. 93.104.53.57 (talk) 05:44, 15 November 2009 (UTC)
 * HD decoders really need graphics accelerators. 69.228.171.150 (talk) 11:19, 15 November 2009 (UTC)
 * Exactly. Do you know one which does? If it's for pay or for free, doesn't matter. 93.104.53.57 (talk) 13:49, 15 November 2009 (UTC)


 * If you google "multicore video decoding" you can find instructions for how to make Mplayer do it. It's not easy, though—the software is not natively built to do it at this point. --Mr.98 (talk) 13:54, 15 November 2009 (UTC)


 * I'm assuming you have Windows (Linux would report 100% usage if 1 core is fully utlised). What graphics card do you have? Do you have the latest drivers and everything? Does Windows Media Player play it well? --antilivedT 01:16, 16 November 2009 (UTC)

Doesn't CoreAVC do multicore decoding? Also if you have an 8xxx series, or above Nvidia card (Including the GTX series) or ATI HDXxxx series graphics card or above then getting something like the ffdshow codec set and Media Player Classic, or any other Directshow compatible media player should let you decode video on the graphics card, which should be faster than CPU. Gunrun (talk) 09:15, 17 November 2009 (UTC)

Inner class polymorphism in Java
In Java, if a subclass overrides an inner class that it inherits from the parent, must the new inner class extend the parent's inner class? That is, if class Car contains class Car.Wheel and class Ferrari extends Car, must Ferrari.Wheel extend Car.Wheel? Neon Merlin  15:03, 15 November 2009 (UTC)
 * The result of creating and compiling the minimal example outlined by you suggests that the answer is no. decltype (talk) 07:14, 16 November 2009 (UTC)


 * The answer is yes. Unless you explicitly say Ferrari.Wheel extends Car.Wheel, then the two classes will have no relationship at all (except for having the same name within their class, but that only affects static binding like what kind of thing "new Wheel" creates in a given class, and not the dynamic binding that "polymorphism" refers to).  For example:


 * If you omit line 15 above, then Ferrari.Wheel's superclass will be Object, and therefore line 18 will fail to compile. --Sean 14:27, 16 November 2009 (UTC)
 * Apologies! I totally missed the part about overriding a function in the base inner class. Which is ridiculous considering the section heading. I basically answered a question nobody asked. decltype (talk) 14:50, 16 November 2009 (UTC)

information system
got any good suggestion about information system?? i need information system that support manufacturing and production business function... i hope the one u suggest me is the best choice of all... but if got more suggestion also can.. just post it on here.. i will compare it... pls tell me the reason y u say it's good also ya... wait for your reply o...^^ —Preceding unsigned comment added by 115.132.94.186 (talk) 15:45, 15 November 2009 (UTC)
 * Could you explain what kind of information system you need? Do you need an accounting system?  Do you need an inventory system?  Do you need online ordering?  Do you need a type of computer or terminal?  Information system is pretty ambiguous, if you could be more detailed about what you are looking for we could help better.--TParis00ap (talk) 16:27, 15 November 2009 (UTC)

php
Will is be outdated soon? Will servers still offer it's use? —Preceding unsigned comment added by 82.43.89.85 (talk) 17:38, 15 November 2009 (UTC)


 * I am not a PHP developer myself, but I would be very surprised if it would become outdated in any near future. It is very popular. --Andreas Rejbrand (talk) 17:51, 15 November 2009 (UTC)


 * I presume the huge number of websites currently relying on PHP (and you're looking at one now) would keep it around for yonks, even if new and better languages came out. - Jarry1250 [Humorous? Discuss.] 17:54, 15 November 2009 (UTC)


 * There is no reason to suspect it is going away anytime soon. --Mr.98 (talk) 18:41, 15 November 2009 (UTC)

logos
dear sir / madam hopenice day for u ,,m i want have all logos on : 1 -trade marks / vols.1 through 10 edited by david e, carter 2- design elements, vol .2 , vol ,3&4 by richard&mies hora 3-designing corporate identity programs for small corporations by david e, carter 4- world of logotypes, vols 1,11,&111 by al cooper 5- designing corporate symbols by david e, carter 6- best financial advertising vol1,2,3, & 4 david e, carter 7- letterheads vols 1.2.3.4.5.&6 ( the international annuals of letterhead design by david e, carter 8- the abc of typography 9- designing corporate symols 10- encyclopedia of airbrush.3 volumes —Preceding unsigned comment added by MANAL77 (talk • contribs) 18:10, 15 November 2009 (UTC)


 * I'm afraid that there's unlikely to be any way for us to get you the contents of the many books you are referencing. Googling some of them (e.g. "world of logotypes") comes up with online versions. The rest will have to be located elsewhere—Amazon.com, ebay, abesbooks, etc. Some look very much out of print and may be hard to find outside of specialized libraries. --Mr.98 (talk) 18:44, 15 November 2009 (UTC)

romaji
How can I type in full width romaji on a normal English keyboard? —Preceding unsigned comment added by 82.43.89.85 (talk) 22:15, 15 November 2009 (UTC)


 * The normal way is to create a new keyboard mapping for the desired characters. The easier way is to just use the Japanese IME. Switch the Input Mode to Fullwidth Alphanumerics and ｔｙｐｅ　ａｗａｙ．．． 220.233.133.226 (talk) 22:41, 15 November 2009 (UTC)
 * Awesome, but I don't know how to change to Japanese IME, could you tell me? —Preceding unsigned comment added by 82.43.89.85 (talk) 22:54, 15 November 2009 (UTC)


 * Have you previously installed the Japanese IME? Below are brief instructions for Vista; XP and Win7 are very similar, but slightly different:
 * Open Control Panel
 * Open Regional and Language Options
 * Click on the Keyboards and Languages tab
 * Click Change keyboards button
 * Click Add button and choose Japanese
 * Click OK
 * Click the Language Bar tab
 * Ensure that Language Bar is set to Floating On Desktop or Docked in the taskbar
 * The Japanese IME should be installed and is accessible. Now you can change the input mode as follows:
 * Click on the language bar either on the desktop or docked in the taskbar; change it to Japanese
 * Click on the Input Mode button that probably says あ or A; change it to 全角英数 (Fullwidth Alphanumericas).
 * Ｔｈｅｎ　ｙｏｕ　ｃａｎ　ｔｙｐｅ　ｌｉｋｅ　ｔｈｉｓ，　ｆｏｒ　ｗｈａｔｅｖｅｒ　ｙｏｕｒ　ｒｅａｓｏｎｓ　ａｒｅ，　ｗｉｔｈ　ｔｈｅ　ｓａｍｅ　ｋｅｙｓ　ａｓ　ｙｏｕ　ｎｏｒｍａｌｌｙ　ｄｏ． To return to normal letters, change the Input Mode to A or just change the IME back to English or whatever your default is. You can probably find better instructions with pictures if you do a web search. 220.233.133.226 (talk) 23:16, 15 November 2009 (UTC)

Thanks, I did every you said up to the Language Bar part. I can't find the Language Bar —Preceding unsigned comment added by 82.43.89.85 (talk) 23:24, 15 November 2009 (UTC)

Ah never mind I found it. Thanks for the help!!

Facebook a pay site?
Lately I've received a rash of requests to join causes on Facebook in order to protest FB becoming a pay site. I've been unable to find anything about this in the news. Is this a rumor that goes around every so often that I'm just catching a wave of lately or am I missing something in my news searches? Dismas |(talk) 22:59, 15 November 2009 (UTC)


 * That's right, it's an untrue meme that circles around continually. Comet Tuttle (talk) 23:21, 15 November 2009 (UTC)


 * Looks like it just a rumor, at the moment. There are good economic reasons to think that Facebook could, at some point, become a pay site—it has no other obvious business model and even if a huge percentage of users left it, it would still be making big bucks from even modest fees. (It would, of course, mark the end of its ubiquity—something else would come and take the crown away from it. But that is bound to happen eventually, as the MySpace people have no doubt learned.) --Mr.98 (talk) 23:23, 15 November 2009 (UTC)


 * For the record, I disagree with most of what you just wrote. Comet Tuttle (talk) 03:39, 16 November 2009 (UTC)
 * One argument against subscription-fees is that the utility of a social-network decreases dramatically faster than linearly proportional to the number of nodes removed (thanks to graph connectivity). Numerous sociology books and papers have studied this effect: see (e.g.) Social network analysis by Stanley Wasserman; The cohesiveness of blocks in social networks: Node connectivity and conditional density; (pay close attention to things like "conditional density" - that is to say, if 10% of your friends dropped out because of the pay service, you might fail a critical density metric and collapse the network very dramatically).  I'm sure that somebody at Facebook (who has a Ph.D.) studies these scholarly details and translates them into profit-risk analysis.  Nimur (talk) 15:18, 16 November 2009 (UTC)
 * Well, as I said, it would be the end of its ubiquity. I think it would be the last-ditch attempt to recover funds from a dying company. Unfortunately, .com sites with no business models tend to become a game of hot potato—the whole game is building up a user base and selling it off to someone else, with the hope that you're not the one left with the site and the large user base but no business model. Facebook's business model so far has been to attempt to dip into potential advertising profits, but whether that actually will translate into the profits necessary to keep such a site up and running in the long term, I am skeptical. --Mr.98 (talk) 16:24, 16 November 2009 (UTC)
 * Friends Reunited tried to run as a paid site, with near-disastrous results. It is now free again, and desperately trying to make up lost ground against Facebook et al. The messages Dismas refers to sound very similar to the sort of stuff that used to circulate on Instant messaging systems: ICQ wants to start charging! If you send this message to all your friends they won't do it! AndrewWTaylor (talk) 16:49, 16 November 2009 (UTC)
 * True enough, though it's worth noting that Facebook has currently some twenty times more users than Friends United did at its peak (300 million v. 15 million). Scale matters, here: if even a very small 1% of Facebook's users paid some small fee per month or year for an "enhanced" experience, that is still three million paid users—quite a considerable number. --Mr.98 (talk) 23:17, 16 November 2009 (UTC)
 * I think a key point is what you mentioned in your second/last sentence but didn't mentioned earlier. It's possible this may work if they are only charging for an "enhanced" experience (which I wouldn't consider a pay site although wouldn't consider a truly free site either) but people can get by fine without paying ("free" games with microtransactions have had some success for example as do I believe various forums etc and also some stuff like photo sites, Yahoo email etc). I personally think it's difficult to imagine this working if you need to pay to use the site which I personally and I suspect others thought you were referring to earlier. Nil Einne (talk) 07:45, 18 November 2009 (UTC)


 * Well, good for you! --Mr.98 (talk) 16:24, 16 November 2009 (UTC)


 * The basic-site-free-pay-for-added-extras model is often known as Freemium and our article on it says "Facebook is considering adopting the freemium model according to Yuri Milner, the CEO of DST, a Facebook investor." (it's referenced, but I can't access at the moment). -- Kateshortforbob talk  15:35, 19 November 2009 (UTC)
 * Oops, did this get archived while I was writing, or am I just really unobservant? Oh well...-- Kateshortforbob talk  15:36, 19 November 2009 (UTC)