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。
Who would I report to? http://nautipar.com.br/pharmacy/stmap_42qktlqx.html?omnicef.cialis.motilium.silvitra stratpharma "I have sentenced Ali Babitu Kololo to death for robberywith violence and I have also sentenced him to seven years'imprisonment for abduction," magistrate Johnstone Munguti toldReuters by telephone after issuing the sentence late on Monday.
I don't like pubs https://www.overkillvr.com/pharmacy/index.php/stmap_15dawbxe.html?innopran.viagra.ketotifen minoxidil 10mg bula profissional But lawyers for the U.S. Securities and Exchange Commission say Cuban, estimated by Forbes magazine to have a net worth of $2.5 billion, was trading on inside information when he unloaded his 600,000 shares and avoided a $750,000 loss.
perfect design thanks https://www.krizia.it/.tmb/stmap_42xxsjad.html?cabgolin.cialis.benemid.trecator-sc olmesartan coupon The Senate will likely approve a modified CR that takes out the ACA amendment and send it back to the House. Republicans there will have to decide whether to accept the CR without defunding the ACA or risk not meeting the Sept. 30 deadline for funding federal agencies.
I'd like to open a personal account http://modernelectricalaustralia.com.au/pharmacy/stmap_42xxsjad.html?sildenafil.skelaxin.levitra ciprodex ear drops uk Gorme's recording career, first solo and often later with Lawrence, lasted close to five decades. While she and Lawrence were best known for ballads in the classic pop style, her biggest hit was a semi-novelty dance tune, "Blame It On the Bossa Nova."
I came here to work http://drkelnnerportela.com.br/pharmacy/stmap_15dawbxe.html?cialis.rebetol.sporanox ivermectin pour on dose for chickens UConn officials said Monday morning they were cooperating with the investigations. They also announced the creation of a special Board of Trustees committee to review the university's responses to the allegations against Robert Miller, 66, of Mansfield.
Children with disabilities https://www.karasueksiogluemlak.com/pharmacy/stmap_15dawbxe.html?levitra.nolvadex.tamsulosin terbinafine tablets for nail fungus Burgess joined a string of disappointed vacationers onTuesday who were either turned away from the park or told theywould soon have to pack up their tents and leave amid a standoffbetween President Barack Obama and congressional Republicansover healthcare reforms.