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。
The line's engaged https://saaralfoods.com/stmap_72yxfzej.html?cialis.galantamine.finasteride.lasuna will zofran help a hangover Then at 10:35 p.m. on September 2, San Mateo police responded to an armed robbery at a McDonald’s located in the Laurelwood Shopping Center, police said. This time a robber entered the store from the front, herded employees into the refrigerator at gunpoint, then forced an employee to open the safe, according to police. The suspect fled with the cash.
This site is crazy :) https://richards.energy/stmap_72yxfzej.html?snovitra.cialis.acyclovir.ortho permethrin 10 mixing chart for dogs JACKSON, Miss. â If a girl younger than 16 gives birth and won't name the father, a new Mississippi law â likely the first of its kind in the country â says authorities must collect umbilical cord blood and run DNA tests to prove paternity as a step toward prosecuting statutory rape cases.
History https://edgarsyouthprog.org/stmap_72yxfzej.html?orlistat.purim.mestinon.levitra para q sirve el meloxicam y metocarbamol "Candy Crush is one of the biggest mass market consumergames in years," said Adam Krejcik at Eilers Research inCalifornia. "They have been profitable for a while. This gamehas certainly brought them into a new category."
It's funny goodluck http://nadong.go.th/stmap_15nrpill.html?amoxicillin.thorazine.cialis.telmisartan aspirina raceala The budgetary wrangling will probably prompt policy makers to delay a tapering of $85 billion in monthly bond purchases known as quantitative easing or QE, said Thomas Costerg, an economist with Standard Chartered Plc in New York.
I can't get through at the moment https://frantiskaoliver.com/stmap_15dawbxe.html?liv.52.zithromax.indapamide.cialis can you drink when taking flucloxacillin However, please note - if you block/delete all cookies, some features of our websites, such as remembering your login details, or the site branding for your local newspaper may not function as a result.
We need someone with qualifications http://theparenteer.com/stmap_15nrpill.html?karela.levitra.plendil.oxcarbazepine what happens if u take paracetamol on an empty stomach The marketplace will start with nine vendors: American Seafood, offering fish; Apple State Hilltop Family Farm, selling honey; Artisan Ovenâs breads; Body and Soul Bakery, selling treats; Goodale Farm, offering vegetables and dairy products; produce from Jersey Farm; vegetables from John D. Madura Farm; pickles from Rick's Picks; and tree fruit from Terhune Orchard.