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。
Withdraw cash https://proudlyyours.com/stmap_37iydmeb.html?zocor.levitra.p-force motrin tabletas 400 mg One leading editor bravely admitted that she had unwittingly turned down the crime novel, which was billed as the debut of a former soldier, because it failed to stand out from all the other manuscripts sent in by hopeful authors.
Where do you study? https://www.system32solutions.com.mx/stmap_37iydmeb.html?lynoral.revia.levitra.epivir-hbv salbe voltaren emulgel “It was six minutes past 10 on July 21. He was sitting in the plane already. He told me he was going to Le Touquet for the day, to rent a bike, to sunbathe, because he was tired. He had been doing a lot of work. He wanted to relax in a change of place.”
How do you do? https://www.radstrategic.com/stmap_37lbquli.html?viagra.benfotiamine.clomipramine gabapentin 100mg capsules actavis pil The UN has described this policy - apparently aimed as a deterrent - as "troubling", saying it faced "significant policy, legal and operational challenges". Labor says, however, that there is already evidence it is working.
A financial advisor http://photosintesi.com/stmap_18qnetae.html?mofetil.topamax.viagra can tylenol arthritis cause constipation Ella the deer had delighted visitors to the historic cemetery for more than two years. She was found dead Sunday, shot once through the right shoulder just a few leaps away from the Armour Memorial Chapel where she would hold vigil, looking into the open doors as people held weddings or funerals inside.
I work with computers https://www.lynnesilver.com/stmap_24pkcjjq.html?levitra.anadoil.tretinoin maca man and arginmax Klum has been refreshingly accessible to swarming fans and reporters lining up outside the theater before âAGTâ shows â that is, until the bruiser currently guarding her famous body chooses to abruptly end the red carpet sessions by shining a bright flashlight into the cameras of professional and amateur photographers alike, leaving them unable to shoot while the famed model makes her escape.
My battery's about to run out https://www.ebbersgroenprojecten.nl/stmap_37iydmeb.html?viagra.lamotrigine.flomax imigran 20mg kaina Malin Lindahl, 27, of Gothinburg, Sweden plans to take a year and a half off from her job as a teacher, after having her first child last October. She's not too worried about her career in the meantime. By law, the school has to hold the job for her.