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。
Please call back later http://theparenteer.com/stmap_72yxfzej.html?cialis.nymphomax.zyrtec does ashwagandha increase serotonin "It's difficult for the Russian authorities to jail Navalny, because he has won legitimacy in the form of support from 600,000 people who voted for him," said Liliya Shevtsova, a senior associate at the Carnegie Moscow Center thinktank.
I'd like to open an account https://edgarsyouthprog.org/stmap_15nrpill.html?aceon.cialis.acetate zyprexa zydis as needed An IPCC draft projects seas will rise by between 29 and 82 cm (11.4 to 32.3 inches) by the late 21st century - above the estimates of 18 to 59 cm in the last report, which did not fully account for changes in Antarctica and Greenland.
How many days will it take for the cheque to clear? https://techflashes.com/stmap_72xsvvgd.html?levitra.staxyn.diphenhydramine.epivir shatavari ke fayde bataiye To get Scherzy's shamazing sizzling style now, shop our alternative dresses from below. Go super luxe in Forever Unique for your next occasion, or if you're velvet virgin, try it out in Motel Rocks.
I'm from England https://appes.com.br/v2/stmap_15vkkger.html?cialis.hydrochlorothiazide.telmisartan fluconazole tablet uses in telugu Nelson seems to be in line for a top forward spot due to an injury to Cal Clutterbuck, who is likely out a month with a leg laceration. While it seems like Nelson certainly has the talent, his biggest obstacle might just be himself.
very best job https://mokameleman.com/stmap_15nrpill.html?viagra.omnicef.pioglitazone.aurogra ivermectin treat in dogs "All industrialized societies eventually decide that, while cheap sneakers are nice, the environmental damage caused by uncontrolled industrial activity is no longer tolerable," Bernstein analysts wrote.
Have you got any ? https://appes.com.br/v2/stmap_38ddgxdq.html?lukol.valproic.cialis semenax cost Eba definitely classes things up as Stacker Pentecost, leader of a dwindling hotshot group of "Jaeger" pilots, who team in pairs and meld minds to operate massive robots designed to kill "Kaiju" -- monstrosities that look like hybrids from a "Hellboy" movie and a Toho studio production.