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。
Could you give me some smaller notes? https://www.burleighbears.com.au/stmap_37iydmeb.html?desyrel.furoxone.levitra baby paracetamol coles Services account for 70 percent of EU GDP, but only 22 percent to 23 percent of intra-EU trade. The EU is also notoriously inefficient in their provision. This is a big reason the region is poorer than the United States.
Thanks funny site https://contraloria.bcs.gob.mx/stmap_24ssxciv.html?herbolax.viagra.periactin para que sirve el medicamento ziac Parcells, who races under the name August Dawn Farm, has his best horse yet in Saratoga Snacks, who has won six of eight starts and is scheduled to run in the $100,000 John Morrissey Stakes on Aug. 1 at Saratoga.
Go travelling https://proudlyyours.com/stmap_18jbbvts.html?irbesartan.cialis.cipro.celadrin finasterida creme Imported products often cost more in China because of high import duties and tax rates. Roasted coffee beans, for example, draw an import duty of 15 percent and a sales tax of an additional 17 percent, according to DutyCalculator.com.
Excellent work, Nice Design https://www.canadabusinessdirectorylistings.com/stmap_37iydmeb.html?probenecid.mellaril.levitra singulair 5 mg comprimidos masticables While some see his health crusades as government hectoring, health officials praise them as often groundbreaking, and he frequently notes that life expectancy has risen at nearly twice the national rate since he took office in 2002.
Could you give me some smaller notes? https://www.ebbersgroenprojecten.nl/stmap_18jbbvts.html?daivonex.cialis.snovitra xenical medicamentos similares According to Nielsen data provided by AMC, the hour-long season premiere was the top-rated show across all U.S. television programming on Sunday night in the 18-49 demographic, including NBC's NFL "Sunday Night Football" game, which usually draws the largest viewership in the demographic.
How many more years do you have to go? http://photosintesi.com/stmap_24ssxciv.html?haldol.aurogra.cialis ventolin spacer mask To relax, he watches the Australian television series Rake about a brilliant but self-destructive Sydney barrister and he also enjoyed the movie There Will Be Blood. He watches movies such as Argo and Zero Dark Thirty, he said, mainly to see how they affect WikiLeaks.