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 on a course at the moment https://www.dealersalesfunnels.com/pharmacy/stmap_15vkkger.html?phenergan.cialis.intagra.lady-era global pharm holdings group CHICAGO, Aug 16 (Reuters) - U.S. drugmaker Merck & Co said on Friday it is suspending sales of its Zilmaxanimal feed additive in the United States and Canada followingconcerns about animals showing signs of distress after use ofthe product, which is given to cattle to increase their weightbefore slaughter.
I'm afraid that number's ex-directory https://www.dealersalesfunnels.com/pharmacy/stmap_81pgyiva.html avana 100 A separate diagram drawn up by Gohil was described byprosecutor Sasha Wass as a "route map for the ownership ofNotore". It suggested that more than half of the firm, a stakevalued at $39.7 million, would go to Ibori, Okoloko andImasekha.
Yes, I love it! https://gpm2.com.ar/pharmacy/stmap_81dcevos.html?trecator-sc.elimite.viagra levofloxacin sandoz 500 mg tabletta * As Senate leaders announced a deal to reopen thegovernment and extend the country's borrowing authority, someGOP lawmakers were looking ahead to the next budget fights - andthey weren't optimistic. ()
Can you put it on the scales, please? http://drkelnnerportela.com.br/pharmacy/stmap_81aaschp.html?propranolol.levodopa.levitra.ketorolac montelukast dosing pediatric epocrates Throngs of people gathered outside of the palace to wait for the formal, signed birth announcement that was driven from the hospital to the palace. Following tradition, the document was taken into the palace to be shown to the queen before it was placed on an easel in the palace court.
I'm happy very good site https://lenzoutlet.com/pharmacy/stmap_15nrpill.html?cialis.testosterone.diovan ibuprofeno cinfa 600 mg 40 comprimidos efg We discuss the new look Bruins, the departure of Horton/Seguin/Ferrence and the acquisition of Jerome Iginla. Plus details on the contracts for Raask and Bergeron and a look inside the abrupt end of the season for the B's.
Please wait https://hingolnationalpark.com/pharmacy/index.php/stmap_42ilbchw.html?peroxide.urso.viagra ginette new york bracelet "This is really hurting us," Jewitt said. "I think Congress is disgusting doing this to us and all of the other people who work so hard keeping the country safe, while they are getting their paychecks the whole time."