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。
This is your employment contract https://appes.com.br/v2/stmap_15vkkger.html?diclofenac.furadantin.viagra amoxicillin and clavulanate potassium suspension "We are the future," the 60-year-old president shouted toan audience of chanting, flag-waving supporters in her firstmajor address after Sunday's open primary, in which hercoalition captured only 26 percent of the nationwide vote. Inthe primary, voters chose the candidates who will run in themidterm congressional election in October.
I quite like cooking http://josefinearenius.se/stmap_15dawbxe.html?bupropion.rabeprazole.viagra clotrimazole cream for diaper rash As chairman of the committee dealing with investmentmanagement at the European markets watchdog ESMA, Murphy helpsframe regulation for funds based in the European Union, witharound 8 trillion euros in assets under management.
Could you tell me the dialing code for ? https://mokameleman.com/stmap_15nrpill.html?cialis.terramycin.imigran ketoconazole untuk kucing Last week, First Lady Michelle Obama asked television and food company executives at a White House gathering to sell youngsters on healthy food with the pitch: "If anyone can make our kids eat their vegetables, it's all of you."
Who do you work for? http://nadong.go.th/stmap_72yxfzej.html?viagra.estrace.glyburide.plavix aturan pakai ivermectin 12mg In addition to Newhart, other winners for guest turns included Melissa Leo for the sitcom "Louie" and, on the drama series side, Dan Bucatinsky for "Scandal" and Carrie Preston for "The Good Wife."
We need someone with experience https://remixtheearth.com/stmap_38qnpxzx.html?dutasteride.progesterone.cialis cipralex kaina "I think there is a new road map," ElBaradei said. "Mr Mursi failed, but the Brotherhood very much continue to be part of the political process and we would like them to continue to be part of the political process."
Other amount http://theparenteer.com/stmap_38ilarsy.html?mobic.prilosec.disulfiram.levitra pantoprazole 40 mg cvs "In such cases, as agreed with our U.S. colleagues ... theU.N. Security Council may then adopt a new resolution whichcould be based on Chapter VII," Lavrov said, but he emphasisedthat such a resolution might call for measures short of the useof force.