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。
Could I make an appointment to see ? http://www.surfinglabenne.com/stmap_38ddgxdq.html?ethionamide.naltrexone.cialis.probenecid remedio para alergia allegra d These Southeast Asian firms have been able to grow fromSingapore, a energy trading hub home and world's two largestoffshore rig builders - Keppel Corp and SembcorpMarine, and oil-exporting Malaysia.
Where are you from? https://www.amecco.org.ar/wp/stmap_72pkzsdq.html?xalatan.furosemide.cialis.mircette panodil paracetamol 1g This year, Dreamworks expects to bring in $100 million inrevenue from its television ventures. The estimate does notinclude revenue from AwesomenessTV, the teen-oriented YouTubenetwork Dreamworks acquired in May.
I can't hear you very well https://edgarsyouthprog.org/stmap_15nrpill.html?olanzapine.amoxicillin.spiriva.viagra aspirina raceala What he didnât foresee was what he did on Thursday night, when he once again became the workhorse in the Giantsâ backfield. Jacobs knew he hadnât started a game in two years and that he hadnât been a workhorse back in four or five. He knew he was 31 with a body that had taken plenty of punishment over the years. And he knew he couldnât turn back the clock on his career.
I'd like to withdraw $100, please http://www.surfinglabenne.com/stmap_38ddgxdq.html?viagra.clomipramine.glibenclamide cefixime lactic acid bacillus dispersible tablets uses in hindi “The misconception about George Best is that alcohol alone wrecked him and his career,” Hamilton writes. “It ignores the reason why he drank. The football was to blame.”
Through friends https://remixtheearth.com/stmap_72xsvvgd.html?nalidixic.viagra.viramune.imitrex ipratropium bromide 0.06 nasal spray reviews Under World Bank President Jim Yong Kim - the first scientist to head the poverty-fighting institution - the bank has launched a more aggressive stance to spur action on climate change. Kim has said it is impossible to tackle poverty without dealing with the effects of a warmer world.
Accountant supermarket manager http://nadong.go.th/stmap_38ilarsy.html?norlutate.oxcarbazepine.viagra nhg ivermectine covid Miura bulls are renowned as Spain's largest and fastest fighting bulls, and Sunday's run was quick, taking 2 minutes, 16 seconds to cover 928 yards (850 meters) from stables just outside Pamplona's medieval stone wall to the central bullring.