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。
When can you start? https://krplas.com/stmap_94vqjxxy.html?abacavir.gasex-sr.mysoline.cialis finasterida 1mg mercado livre In an article from May 20, 2011, still visible on Abe'swebsite, Abe criticised Kan for taking credit for the decisionto cool the melting nuclear reactors with seawater. He said Kanhad not been aware of the operation at first, then stopped itonly to finally restart it after consulting experts.
I've just graduated https://www.goodworkint.com/stmap_62kqmdaq.html?albuterol.famvir.clomid.levitra combien de temps dure effet viagra The U.S. Defense Department said it signed a $4.4 billioncontract for a sixth batch of 36 F-35 aircraft, with the averagecost of the planes down 2.5 percent from the previous deal. Allbut $743 million of that amount had already been awarded to thecompany under a preliminary contract.
This is your employment contract http://phatfabe.com/stmap_62kqmdaq.html?didronel.viagra.allopurinol ventolin inhaler amankah untuk ibu hamil Turner Prize winner Richard Deacon will display 40 works of sculpture and drawings at the Tate Britain, which will also have a themed show on ruins and ruination in British art from the 17th century to the present day
Could I ask who's calling? https://www.enlightenedtraining.com/stmap_94gyirtx.html?vermox.innopran.cialis olmesartan amlodipine hydrochlorothiazide "The alert was struck and the communication from the tower was, 'Alert three. Alert three. Alert three. Plane crash. Plane crash," Emmons recalled at a news conference today. "I knew from her voice that the event we were going to was real."
I'm on holiday https://krplas.com/stmap_21snbbax.html?butenafine.levitra.risperidone grifulvin v 250 mg The head of the Arkansas Waterways Commission and the North Little Rock Fire Department inspected the bridges in daylight Saturday and found the damage was limited to fresh scrapes on the concrete-capped pier protectors.
I'm a trainee https://45so.org/stmap_94vqjxxy.html?captopril.livial.cialis.ursodiol bactrim 800/160 bula anvisa Security was tight near the Capitol after Thursday's incident, which came just three weeks after a government contractor opened fire at the Washington Navy Yard, about 1.5 miles from the Capitol, killing 12 people and wounding three others before he was shot dead by police