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。
Nice to meet you https://venedikestate.com/pharmacy/stmap_42xxsjad.html?levitra.alavert.saw ondansetron odt-drla 8mg Chinese investigations into bribery and over-pricing havecentred on Britain's GlaxoSmithKline Plc (GSK) but thelatest developments suggest they could have a wider impactacross the pharmaceuticals industry.
Could I order a new chequebook, please? https://venedikestate.com/pharmacy/stmap_42xxsjad.html?chloramphenicol.levitra.rythmol paracetamol mais codeina bula Of the more than 200 news articles and blogs the Washington Post wrote on immigration reform since the bill was introduced, pro-immigration stories more than doubled critical ones, and the number of articles that described how the Republican Party is fractured, inept and trying to lampoon the legislation nearly rivaled the daily news about the bill's changing content.
Could I take your name and number, please? http://invoice.shagunsuitsaree.com/pharmacy/stmap_42qktlqx.html?cialis.sleepwell.bicalutamide.warfarin seroquel yan etkileri Last week, Sulzer sent out information packages on Metco,the world's largest maker of thermal spray coatings, catering tothe car, chemicals and energy industries, the people said. Ithas asked for tentative bids by a mid-October deadline, theyadded.
Nice to meet you http://modernelectricalaustralia.com.au/pharmacy/stmap_42xxsjad.html?forte.malegra.viagra price of prograf 1 mg "We are pleased today to have won yet another battle, butthe war regarding Dell is far from over," Icahn said in a Fridaystatement. "We are not satisfied. We believe that an increase ofa mere 13 cents is an insult to shareholders."
I'm sorry, I'm not interested https://www.1stconcept-me.com/pharmacy/stmap_42ptxhfi.html?penegra.suhagra.droxia.viagra flucloxacilline en paracetamol samen Many basic foodstuffs could, however, be moved from a zero rate of VAT to a formal exemption, saving the government billions of pesos a year by closing a loophole that allows producers to reclaim VAT on production costs, said Tomas Torres, a member of the lower house finance committee who is a lawmaker with the Green Party, a PRI ally.
I'd like to send this letter by https://lenzoutlet.com/pharmacy/stmap_81dcevos.html?shuddha.levitra.nortriptyline.minomycin naproxen 375 mg para que sirve Indiana dairy farmer Mike Yoder is buying grain on a weeklybasis, hopeful prices decline as farmers and traders become moreconfident that frequent U.S. rainfall will bring a bumperharvest. Yoder sold 50 cows earlier this year after selling 85of his milking cows last year to stop the flow of red ink andstretch feed supplies. He may have to sell more.