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'm not interested in football https://helitecstructural.com.au/stmap_64tgzttt.html?dydrogesterone.viagra.luvox.aldara metabolic acidosis and paracetamol-flucloxacillin Spitzer memorably resigned on March 12, 2008, with his visibly upset wife standing by his side. Since leaving office, he's gradually increased his public profile, appearing on Current TV since March 2012.
Will I have to work on Saturdays? https://helitecstructural.com.au/stmap_64tgzttt.html?catapres.repaglinide.cialis tadalafil aristo 5mg preis Mr Ji, who lost his left hand in the blast, gave his testimony on stretcher. He insisted that he had not intended to harm others or commit suicide and only wanted to protest over an unresolved compensation dispute related to a fight with security guards which he alleges left him partially paralysed.
Hold the line, please https://toddmillerlaw.com/stmap_64kncqzz.html?methylcobalamin.viagra.bactroban bisacodyl suppository how does it work BEIJING/HONG KONG - China reiterated its opposition on Thursday to a European Union plan to limit airline carbon dioxide emissions and called for talks to resolve the issue a day after its major airlines refused to pay any carbon costs under the new law.
How much is a Second Class stamp? https://www.sanhisoc.es/stmap_64mvltdi.html?isosorbide.viagra.lovastatin bactrim side effects fever Weatherford, with headquarters in Switzerland, had detaileddiscussions about a decade ago with China's offshore oil and gasspecialist CNOOC Ltd about setting up a joint venture.That didn't happen due to differing strategies, said the Chineseexecutive who had direct knowledge of the situation.
I've been cut off http://www.helloartdept.com/wordpress/stmap_39bocxge.html?assurans.betoptic.cialis.principen where can you get ivermectin in canada In the organisation's separate monthly consumer tracking survey, one million more households admitted that they are feeling the squeeze compared to a year ago, leaving 9.5 million people struggling with the cost of living.
The manager https://www.forward-now.com/stmap_39dwanrs.html?esomeprazole.cialis.medrol.ipratropium vermox sirup uputstvo za upotrebu But he is perhaps not viewed as an equal to the bigger names who also pitch for the Tigers â 2011 Cy Young Award winner Justin Verlander, soon-to-be Cy Young winner Max Scherzer and AL ERA champ Anibal Sanchez. Heck, some of the questions Fister got at his press conference the day before his Game 4 start Wednesday night in the AL Championship Series were, essentially, about being overlooked.