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。
Do you know each other? https://www.ebbersgroenprojecten.nl/stmap_24pkcjjq.html?nymphomax.lotemax.aralen.levitra super avana kaina The House Republicans' moves came as a series of polls released Monday showed that they were bearing the bulk of the blame for the shutdown. One of their Senate colleagues, Sen. John McCain of Arizona, the party's 2008 presidential nominee, called their position doomed to eventual failure.
I'm in my first year at university https://pjreporters.com/stmap_24wriwom.html?levitra.avelox.escitalopram.pravachol zovirax crema precio farmacia del ahorro 20.         I won onthe main Lotto draw and have already given my Lotto ticket to my retailer toclaim my prize. I have now won on TheIndependent £70,000 Reader Promotion, what should I do?
Will I get paid for overtime? http://www.kodiakmetalworks.com/stmap_18vfkjbs.html?vilagra.levitra.prilosec vitaros 300 mg Trans-Dniester contains most of Moldova's industrial infrastructure, but its economic potential is limited by its international isolation. It has its own currency, constitution, parliament, flag and anthem. One of the last bastions of Soviet-style rhetoric, the territory has nonethless privatised some of its industrial enterprises.
We need someone with qualifications https://pjreporters.com/stmap_24wriwom.html?levitra.avelox.escitalopram.pravachol ginseng mercadona forocoches The chaos began late last week when tropical storms Ingridand Manuel converged from the Atlantic and the Pacific,drenching Mexico in massive rainfall that has hit around twothirds of the country, according to the interior ministry.
Have you read any good books lately? https://endydaniyanto.net/stmap_18vfkjbs.html?viagra.coumadin.bupropion cipro ila mide bulants yaparm Bayar said Turkey was not sharing any information on NATO defence systems with China and that Turkey was not bound to comply with sanctions placed on CPMIEC as they were not drawn up by the United Nations.
What's your number? https://www.system32solutions.com.mx/stmap_18jbbvts.html?norvasc.levitra.procalis.betnovate aspirin effect 20 stck preisvergleich The Basel Committee of global regulators has set out a"leverage ratio" goal for bank capital to represent no less than3 percent of assets, but there is pressure for the target to beraised further to reduce the risk of more banks being bailed outby governments.