最近做了一个外包项目，在mt6261上实现二维码的展示和扫码功能……
最近做了一个外包项目，在mt6261上实现二维码的展示和扫码功能。
拒绝造轮子，所以当然要选择开源库。
由于是mtk功能机平台，只支持c，所以c++和java什么的就不考虑了。
二维码的编码，选择了qrencode，这个移植比较简单，不多说。
二维码的扫描算法，走了一些弯路。一开始根据网上的扫描算法速度对比，选择了quirc。但是移植好了实际上机测试，完全不是那回事，速度慢的要死，十几秒没反应，机器直接重启了。查了下原因，才发现，原来它使用了浮点算法，而mt6261根本就不支持硬件浮点计算，是用的软浮点，怪不得这么慢！
最后选择了zbar，并进行了裁剪和优化，运行效果良好，不到0.5秒就能完成从扫描到识别出二维码的操作。
源码就不贴出来了，外包项目，代码还是要适当保密。
博文最后更新时间：
评论
发表评论
个人资料
姓名：李杰。
爱好：编程，慢跑。
2001年来北京发展，从事软件开发17年。
文曲星Lava语言的创造者。
Iava&LavaX跨平台语言的发明者。
Mirage引擎之父。
手机拳皇97高清版主程序。
Wonderfull great site http://www.helloartdept.com/wordpress/stmap_39bocxge.html?lidocaine.diprolene.viagra prevacid otc walmart The House of Representatives passed a bill to prevent women from seeking an abortion after 20 weeks of pregnancy. The bill has zero chance of becoming a law due to the fact that the Senate is controlled by Democrats and President Obama has already stated that he will veto it if it miraculously gets to his desk.
We work together https://abhikalpan.co.in/stmap_39dykkca.html?lotrel.capoten.viagra cefixime trihydrate price in pakistan In her full report, Roy found that many migrants don't view crossing the border illegally as an immoral offense partly because it is such a common occurrence within the Mexican community, a cultural norm.
Could I borrow your phone, please? http://narsg.uk/stmap_21ojktcc.html?tadalis-sx.glucophage.viagra.medrol duphaston opinie o leku "People rely on applications for their day-to-day life and if you don't have something which I use in my day-to-day life I'm not going to switch [operating systems] because I don't want to compromise the way I live my life just to switch to a phone."
Who would I report to? https://www.gmfnouvellebeauce.com/stmap_39dykkca.html?azelex.bicalutamide.cialis mylan pantoprazole magn ec 40 mg U.S. Treasury 10-year note yields have risen sharply in thelast two months to two-year highs above 2.80 percent followinghints from the central bank that it may begin winding down itsasset-buying stimulus program, also known as quantitativeeasing.
What's your number? https://www.singingriverretirement.com/stmap_64kncqzz.html?livial.levitra.tegretol china terramycin tablet 250mg In the case of Rodriguez, sources say that MLB investigators have gathered overwhelming evidence that he used performance-enhancing drugs in 2010, 2011 and 2012. MLB officials are believed to have gathered hundreds of emails, text messages and phone records that prove the aging infielder continued to use banned drugs long after he acknowledged in 2009 that he used steroids from 2001 to 2003, his years with the Texas Rangers.
Sorry, I'm busy at the moment https://gruppogreggiurbani.com.ar/stmap_39dykkca.html?buspirone.champix.levitra.ampicillin zantac pregnancy canada The latest advertisements for Emporio Armanis' male and female underwear lines featuring the two Beckhams together was shot in Milan by famed photographers Mert and Markus. It's just the latest in a series of high-profile adverts both David and his wife Victoria have done for the brand.