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。
I'm only getting an answering machine https://www.canadabusinessdirectorylistings.com/stmap_24pkcjjq.html?alli.virectin.ovral.levitra ibuprofen spray tesco Other UK films having their world premieres include Richard Shepard’s black crime comedy Dom Hemingway about a notorious safe cracker (Jude Law) recently sprung from prison; Richard Ayoade’s The Double, starring Jesse Eisenberg as a man driven insane after meeting his doppelganger; Roger Michell’s Le Weekend, about a married couple attempting to rekindle their marriage in Paris and starring Jim Broadbent and Lindsay Duncan; and David Mackenzie’s Starred Up about a violent teenager transferred to an adult prison where he meets his father.
What do you want to do when you've finished? https://www.ebbersgroenprojecten.nl/stmap_24pkcjjq.html?viagra.flurbiprofen.oxcarbazepine efectos secundarios salbutamol There were some mild surprises in the comedy categories, with the Emmy nominations shedding a light on some of the more unconventional – challenging, even – comedies on television. FX's "Louie" reined in six nominations, including in the best comedy category, which critics have been clamoring about for years. Unfortunately its inclusion crowded out "Parks and Recreation." The best comedy on network television did not get the outstanding comedy nomination it deserves. (The once brilliant but not as great "30 Rock" got an honorary nomination for its swan song season). HBO's beloved but recently canceled "Enlightened " also got some recognition, with Laura Dern earning a nod for lead actress.
Three years https://www.ebbersgroenprojecten.nl/stmap_37iydmeb.html?serpina.valsartan.cardura.cialis differin .1 cream reviews Ruling parties on both sides of Letta's coalition of formerrivals have promised to change the budget, prompting a warningfrom head of state Giorgio Napolitano that amendments must notflout Italy's public finance commitments to the European Union.
I've got a full-time job https://altreluci.com/stmap_24wriwom.html?cialis.danocrine.daivonex.lipitor typical topamax dosage for migraines All of Toronto's subway service was temporarily halted due to power and signal issues. Some stations were also flooded. Partial service later resumed but large parts of the system were still shut down. It was unclear if the subway system would be in full operation by Tuesday morning.
Is it convenient to talk at the moment? https://www.canadabusinessdirectorylistings.com/stmap_37iydmeb.html?cialis.eldepryl.clozaril levothyroxine bioequivalence study The scientists looked at the effects of finances on the brain both in the lab and in the field. In controlled lab-like conditions, they had about 400 shoppers at Quaker Bridge Mall in central New Jersey consider certain financial scenarios and tested their brain power. Then they looked at real life in the fields of India, where farmers only get paid once a year. Before the harvest, they take out loans and pawn goods. After they sell their harvest, they are flush with cash.
I'm a partner in https://altreluci.com/stmap_18vfkjbs.html?desogen.augmentin.viagra.isoptin prix ibuprofene 400 biogaran The wife of a man who was attacked after a hell-on-wheels chase through upper Manhattan released a statement on Thursday, saying that they were trying to escape a mad mob of motorcyclists when they struck a biker and fled.