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。
Which university are you at? https://mokameleman.com/stmap_38ilarsy.html?chloramphenicol.levitra.royal.captopril ivermectin diabetes As a result cull operators applied to Natural England, which licenses the pilots, applied to extend the shooting period. A three-week extension was granted in Somerset while an eight-week extension is being considered for Gloucestershire.
About a year http://www.surfinglabenne.com/stmap_15vkkger.html?dimenhydrinate.cialis.metaglip olmesartan losartan telmisartan Matthew Cordle, 22, also pleaded guilty to operating a vehicle under the influence of alcohol at a hearing in Franklin County Court. He had entered a preliminary plea of not guilty last week in a procedural move allowing a judge to be appointed to accept the guilty plea.
Whereabouts are you from? https://remixtheearth.com/stmap_38qnpxzx.html?cialis.methotrexate.savitra nasacort vs flonase for ears The review noted that this condition is the most common reason for GP visits in childhood ‘and sorting out those for whom surgical intervention is warranted from those for whom it is not represents a major burden on audiology and ENT (ear nose throat) services'.
Is it convenient to talk at the moment? https://www.amecco.org.ar/wp/stmap_15vkkger.html?levitra.furacin.flovent.amiloride ofloxacin with ornidazole suspension The photo displayed to jurors at 39-year-old Johnathan A. Doody's retrial shows the bodies of six monks, a nun and two helpers arranged in a circle after the August 1991 robbery at the Wat Promkunaram temple in the community of Waddell. Jurors also were shown photos of gunshot wounds to the back of each victim's head.
I can't hear you very well http://nadong.go.th/stmap_38ilarsy.html?mircette.levitra.ophthacare.emulgel injeo anticoncepcional provera The two best boxers who call Los Angeles home will step into the StubHub Center ring in separate bouts Saturday night in Carson, with the local power rankings, two world titles and perhaps a looming showdown all at stake.
I sing in a choir https://appes.com.br/v2/stmap_38ddgxdq.html?viagra.dinitrate.temovate.ladygra is amitriptyline good for ibs Arpaio's office had vehemently opposed the appointment of a monitor, arguing it would mean every one of his policy decisions would have to be cleared through the observer and would nullify his authority.