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 never went to university https://metro-taxis.com/stmap_21wizxfu.html?vasotec.praziquantel.levitra.ponstel bactrim inyectable Content engaging our readers now, with additional prominence accorded if the story is rapidly gaining attention. Our WSJ algorithm comprises 30% page views, 20% Facebook, 20% Twitter, 20% email shares and 10% comments.
I'll send you a text http://narsg.uk/stmap_39bocxge.html?cialis.accutane.urispas.mestinon zandu vigorex tablet in hindi And while, as her manager, Rudolph is in charge of her career trajectory, heâs not the only middle-aged guy helping Cyrus. Her agent, Kevin Huvane, is one of Hollywoodâs most powerful, boasting A-list talent including Meryl Streep, Jennifer Aniston, Tom Cruise and Natalie Portman. And now controversial photographer Terry Richardson has been pulled into the mix. Richardson, who directed the scandalous video for âWrecking Ball,â has been accused of inappropriately touching young models in the past, accusations which he had vehemently denied.
How much will it cost to send this letter to ? https://toddmillerlaw.com/stmap_21snbbax.html?cialis.fluoxetine.telmisartan.hytrin anafranil reviews premature ejaculation If the majority of all Americans suddenly wanted to bring back the age of “Slavery”, and make slavery legal, would that mean, the minority of Americans opposing turning back the clock, must accept such a barbaric decision because it was the majority opinion.
What do you study? http://wordpressatlanta.com/stmap_39dykkca.html?champix.levitra.innopran tylenol dc 500 bula In a number of recent cases, bullish bets in U.S. options ahead of several takeover announcements have raised red flags that investors may have been tipped off. The SEC has moved quickly, obtaining emergency orders to keep traders from cashing in by freezing their accounts.
How many weeks' holiday a year are there? http://wordpressatlanta.com/stmap_64kncqzz.html?clozapine.levitra.atenolol himalaya neem tablets review quora The series shifts to Tropicana Field, where Clay Buchholz and the Red Sox will try to close out the Rays on Monday night. Alex Cobb, who beat the Indians in the wild card game this week, starts for Tampa Bay.
We're at university together https://www.sanhisoc.es/stmap_39bocxge.html?remeron.cialis.boniva.triamterene zandu vigorex tablet in hindi The report warns that this could be a growing problem, but suggests that governments should put in place compensation schemes to offset any losses for farmers. It also says that rural communities could benefit from more animals, as ecotourism could offer a boost to local economies.