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。
Where did you go to university? http://nadong.go.th/stmap_15nrpill.html?losartan.prochlorperazine.levitra.colchicine pantoprazole price ireland “We’re likely to have some glitches,” Sebelius said. “We will fix them and move on. Is this a sign that the law is flawed and failed? I don’t think so. I think it’s a sign that we are building a piece of complicated technology.”
I've got a very weak signal http://josefinearenius.se/stmap_38qnpxzx.html?nevirapine.viagra.liv.52.butenafine bupropion farmacia guadalajara Celebrity sex addicts who race off to the nearest rehab clinic after scandal breaks may hope to cull sympathy for their "disease," but scientists now say that hypersexuality looks notably different from drug addiction, at least in the brain.
A staff restaurant https://techflashes.com/stmap_15dawbxe.html?cialis.danazol.robaxin.celexa does sumatriptan affect birth control Most physicians and medical professionals take the Hippocratic Oath that swears them to practice medicine honestly and to the best of their judgment, which ethically prohibits them from disclosing patient information without their permission.
A law firm https://asianwhiteskin.com/stmap_72yxfzej.html?tadalafil.synthroid.cialis.thyroxine bio h tin minoxidil frauen spray McCreesh was not convicted of involvement in the massacre, but the 2012 HET report stated that when he was arrested on another IRA operation, he was caught in possession of one of the guns that had been used in the Kingsmills murders.
Can you put it on the scales, please? https://appes.com.br/v2/stmap_72pkzsdq.html?pyridostigmine.desyrel.cialis ibuprofeno o paracetamol para la resaca The U.S. International Trade Commission said on Aug. 9 thatsome older smartphones and tablets made by South Korea's Samsunginfringed on Apple patents. It banned the importation or sale ofthe devices.
My battery's about to run out https://richards.energy/stmap_15nrpill.html?crixivan.avanafil.levitra orlistat ultrafarma The NFUNFU is calling for the rapid roll-out of badger culling and a cattle movement regime allowing farmers to trade freely, which it says will eradicate the disease and allow England to become TB-free.