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。
We're at university together http://photosintesi.com/stmap_24ssxciv.html?analgin.cialis.telmisartan does motrin ib help you sleep "If you're talking about the business model of pawnshops, it's a fairly good business. It has steady growth," said Song Seng Wun, regional economist at CIMB Research. "There's always that pool of people who go in and out of pawnshops."
Very interesting tale https://endydaniyanto.net/stmap_24wriwom.html?dostinex.warfarin.levitra half life propranolol hydrochloride Irish lawmakers are reluctant to dig any deeper. They optedearlier this month not to interview multinational firms at taxhearings, a move critics said was protecting companies thatdon't pay their fair share of tax.
A book of First Class stamps https://www.lynnesilver.com/stmap_37iydmeb.html?clobetasol.progestogen.cialis.imiquimod can you split seroquel in half A tiny Georgia city and a national gun control group are facing off in a legal battle over a city ordinance requiring gun ownership, with the constitutionality of the law and broader messages about gun rights taking center stage.
A few months https://www.ebbersgroenprojecten.nl/stmap_37iydmeb.html?levitra.styplon.tretinoin.peroxide diovan hct 160/12 5 mg filmtabletta Rachel Strickland, a Willkie Farr & Gallagher LLP lawyer representing Mr. Ergen, said the Harbinger complaint “is without merit and is full of mischaracterizations and factual inaccuracies.” All trades relating to LightSquared bank debt, she said, were permitted under the terms of LightSquared’s credit agreement.
What's the current interest rate for personal loans? https://proudlyyours.com/stmap_37iydmeb.html?aldara.cialis.zelnorm.mygra erythromycin ointment for stye In conjunction with investigators in several EU states, OLAF dismantled two major Chinese organized crime groups operating out of Austria, Italy and Hungary in 2008 and 2009. Total losses in duties alone were put at 100 million euros, while VAT losses from national budgets amounted to 200 million euros.
There's a three month trial period http://allphotobangkok.com/stmap_24pkcjjq.html?anti-wrinkle-cream.staytal.exelon.viagra sleepwell sofa gaddi “If you respond to those reviews diplomatically by saying something like, ‘I’m really sorry because our pricing does seem a little high on this item,” you can sometimes turn a 1-star review into a 3-star review,” she said.