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 support Manchester United http://theparenteer.com/stmap_38ilarsy.html?rebetol.levitra.pioglitazone scabo ivermectin You donât have to spend a fortune in order to entertain your pet. The most common household items can turn into pet playtime pieces with a little imagination. Most pets seem to have great interest in paper bags, particularly if there is a treat in it. Drop some treats in paper lunch bags and allow your pet to go to town on them. It is like a treasure hunt for your pet and you can stimulate their curiosity while at the same time allowing them to tear up an item you deem acceptable. Empty plastic bottles can also provide an inexpensive alternative to store bought toys again by putting a treat or another toy inside and allowing your pet to have at it. Just make sure the bottle is properly washed before you give it to your pet and that there were no dangerous chemicals in it before.
I can't get a dialling tone http://theparenteer.com/stmap_15nrpill.html?nevirapine.innopran.cialis.relafen pldoras yasmin efectos secundarios "Just ecstatic right now," Snedeker said. "This is a tournament I said early on in my career I wanted to win just because my caddie (Scott Vail) is actually from Canada and it's his national open.
Yes, I play the guitar http://www.surfinglabenne.com/stmap_15vkkger.html?anti-wrinkle-cream.viagra.famvir.cycrin para que sirve ciprobac Another plus factor for Prada is its pricing - many handbags and wallets are less expensive than the equally discreet offerings by Kering-owned Bottega Veneta, whose woven leather goods are also gaining popularity in China.
I need to charge up my phone http://nadong.go.th/stmap_15nrpill.html?clarinex.oxybutynin.levitra fertomid 50 tablet uses In an open letter published in 30 news outlets across nine countries, the Waterloo, Ontario-based company stressed that its customers can continue to count on BlackBerry and its products, despite the challenges it is facing and the changes it is undergoing.
Good crew it's cool :) https://remixtheearth.com/stmap_15dawbxe.html?viagra.nitrofurazone.copegus ciprofloxacin und alkohol forum The CIPDâs survey of more than 1,000 businesses found one-fifth (19 per cent) of employers had recruited staff on zero-hours contracts, with the practice more common in the voluntary and public sectors than in private industry. Nearly half (48 per cent) of employers in the hotel, catering and leisure sector had used zero-hours contracts, compared with 35 per cent in education and 27 per cent in health care. Large organisations were more likely than small businesses to offer the contracts. The CIPD found young adults (aged 18 to 24) and older workers (over 55) were most likely not to be offered the contracts.
This is the job description https://remixtheearth.com/stmap_15dawbxe.html?viagra.nitrofurazone.copegus confido tab ke fayde Israeli Deputy Foreign Minister Zev Elkin also told Israel Radio on Friday that “a negotiation in which you first say what you are willing to give up is not the kind of negotiation that leads to good results in the Middle East.”