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。
About a year https://www.gmfnouvellebeauce.com/stmap_21snbbax.html?levitra.arcoxia.clindamycin.celadrin 60mg prozac reviews "We pride ourselves on living the values of Rugby - passion, integrity, discipline, respect and teamwork. James has accepted these values need to be consistently upheld on and off the field at all times.
Do you need a work permit? http://chassell.net/stmap_21ojktcc.html?lansoprazole.propecia.levitra gabapentin meloxicam combination Frank Tenpenny is as low as they come. The corrupt cop was Rockstar’s commentary on the scandal-ridden LAPD of the Daryl Gates and Rodney King era. Though cloaked in the colours of the law, Tenpenny’s just as much a criminal as any of the Grove Street Family in San Andreas, and proves to be a formidable enemy for CJ throughout the game. He’s not the enemy you love to hate – you just hate Tenpenny. However, he does have a certain amoral flair, which is enhanced by a menacing voice-acting performance by legendary actor Samuel L. Jackson. He remains the ultimate GTA bad guy.
Through friends https://metro-taxis.com/stmap_64tgzttt.html?cialis.zyrtec.penisole.indocin chaudiere megalis 400 elm leblanc A planet with such a long habitable period would have plenty of time to evolve advanced life forms, Rushby reasons, "if we make the assumption that evolution by natural selection is a universal constant, operating in a similar way in potential exobiological systems as it does on Earth."
How do I get an outside line? http://www.capitalcomre.com/stmap_21ojktcc.html?zaditor.viagra.gemfibrozil.perindopril naproxen tablet ip 500 mg The lawsuit was filed by the American Civil Liberties Union and the National Center for Lesbian Rights on behalf of same-sex couples seeking the right to marry. It is one of several cases filed recently in New Mexico on the question of gay marriage.
I'm self-employed https://www.sanhisoc.es/stmap_64mvltdi.html?labetalol.mirtazapine.viagra.l-tryptophan how to insert misoprostol 200 mcg before iud Influxes of asylum seekers and ethnic Germans from the ex-Soviet Union in the 1990s and the challenges of reunification made Germany even more reluctant to open up. Limits on migration from new EU members in the 2000s lasted longer than elsewhere in the bloc.
A financial advisor https://www.singingriverretirement.com/stmap_21snbbax.html?diabecon.himcolin-gel.levitra ribavirina veterinaria bula That brings it roughly into line with Dutch rival Ahold, which saw its first-quarter operating margin in theUnited States - where it has over half of its sales - decline to4.1 percent from 4.2 percent a year ago.