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。
I'd like to cancel this standing order https://toddmillerlaw.com/stmap_64kncqzz.html?minocycline.levitra.imipramine imipramine ibs The Giants lost their first four games for the first time since 1987, the strike year that featured replacement players in two of those weeks, and theyâve lost three straight games â and five of their last seven, dating back to last season â by at least 18 points. And this most recent loss may have hurt more than the others because, after a week of clamoring to step it up and promising to turn things around, they left no question about their effort.
I'd like a phonecard, please http://chassell.net/stmap_64mvltdi.html?cialis.silagra.daivonex lamisil terbinafine krem That said, it's possible, and maybe even preferable, for preschoolers to get by with a shorter nap, Kothare said. After about 30 minutes, the brain moves from lighter stages of sleep into slow wave sleep. Being woken in the middle of slow-wave sleep leaves kids feeling groggier and less attentive.
Remove card http://www.missionarygeek.com/stmap_21ojktcc.html?breast.levitra.sinequan.acyclovir apo esomeprazole effets secondaires last year. * Q2 order growth of 10 per cent compared to the correspondingperiod in 2012 * H1 book to Bill Ratio for the group was 110 (first half 2012:91) * H1 profit before tax was $14.5 million compared with $52.8million in the
Yes, I love it! https://www.gmfnouvellebeauce.com/stmap_39dykkca.html?levitra.accutane.abilify fluconazole cream brand name Democrats have been staunch supporters of Bernanke, eventhough he is a Republican originally appointed by PresidentGeorge W. Bush. Obama tapped the one-time Princeton professorfor a second four-year term in 2009, thanking him for hisaggressive efforts to combat the deep 2007-09 recession andvirulent financial crisis.
I never went to university https://freelancecomputers.com/stmap_21ojktcc.html?sparfloxacin.cialis.myambutol switching from finasteride to dutasteride hairlosstalk Russian President Vladimir Putin sent on his best wishes to former President George W. Bush â even after the U.S. canceled its Moscow summit due to Putin's decision to grant asylum to Edward Snowden.
I need to charge up my phone https://abhikalpan.co.in/stmap_39dykkca.html?lotrel.capoten.viagra flagyl 400 mg uses in telugu That confounding pile-on instinct does resurface in a muddled final act. Mangold and the writers jumble unconvincing ninjas, a toxin-spewing villainess named Viper (Svetlana Khodchenkova), and Silver Samurai, an armored behemoth made of adamantium, like Wolverine’s claws.