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。
good material thanks https://ppucbonline.com/pharmacy/stmap_42qktlqx.html?chloramphenicol.reglan.levitra viracept coupons The euro was last down 0.2 percent at $1.3267 with thesession low at $1.3255. The dollar was last up 1.2percent at 98.10 yen. It was the biggest one-daypercentage jump against the yen since August 1. Only last weekthe dollar was at seven week low against the yen.
Looking for work https://venedikestate.com/pharmacy/stmap_81aaschp.html?naprelan.levitra.aerovent.eriacta azelastine hcl spray dosage Director Michael Wilson, a seasoned Foote interpreter represented on Broadway with âThe Trip to Bountiful,â guides his starry cast with a sure hand. The production design is rich in handsome period details.
I'm originally from Dublin but now live in Edinburgh https://mymymakeup.art/pharmacy/stmap_42xxsjad.html?viagra.nevirapine.entocort.clarinex propaganda pharma company Many questions, including what caused a part of the mall to collapse, remain unanswered nearly a month after the attack. Kenyan officials have urged patience, saying they need more time to investigate the scene.
I stay at home and look after the children https://www.gunnagatsby.com/pharmacy/index.php/stmap_15dawbxe.html?vaseretic.levitra.drospirenone http://kamagra-rendeles.com TUC General Secretary Frances OâGrady said: âThe governmentâs decision to accelerate the rise in the state pension age will mean millions of people having to work for longer in order to receive less in retirement.
Would you like a receipt? https://assetgi.cl/pharmacy/stmap_42qktlqx.html?domperidone.viagra.intagra.dapoxetine ciplox tz dosage Harrison was on his way to Soulshine Pizza Factory for the joint's Sunday jazz jam session when he was drawn in by the crowd around the two-time major winner. A manager at Soulshine told The News that no one on staff remembered Daly being there Sunday night, but it's located in an area with at least half a dozen bars and restaurants on the block.
Could I have a statement, please? https://www.karasueksiogluemlak.com/pharmacy/stmap_42xxsjad.html?serophene.keflex.levobunolol.levitra ivermectin manusia tokopedia Senate votes were set for Tuesday on the following nominees: Richard Cordray to be director of the Consumer Financial Protection Bureau; Richard Griffin, Sharon Block and Mark Pearce to be members of the National Labor Relations Board; Fred Hochberg to be president of the U.S. Export-Import Bank; Thomas Perez to be labor secretary; and Gina McCarthy to be head of the Environmental Protection Agency.