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。
Why did you come to ? http://wordpressatlanta.com/stmap_39dykkca.html?levitra.digoxin.enhance9 dynamic pharma Itâs another one of those âInterview the person on the streetâ promos weâve seen many times before, and this time the question being posed is, âWhat would make a tablet right for you?â It starts off with tablet owners telling LG why their current slates stay at home, before moving on to what they would change to make them better.
Get a job https://www.forward-now.com/stmap_21wizxfu.html?ayurslim.cialis.zyvox.amlodipine azithromycin tablets ip 250 mg information in marathi Nearly 1,000 health service employees have received six-figure exit deals within the past year, with 157 departing managers and those leaving other senior positions receiving more than £200,000, a 50 per cent rise on the previous year, the Sunday Telegraph reports.
Best Site Good Work https://www.sanhisoc.es/stmap_39bocxge.html?remeron.cialis.boniva.triamterene ivermectin wiki covid By midday, the CSI300 of the leading Shanghai andShenzhen A-share listings was down 0.6 percent, while theShanghai Composite Index shed 0.7 percent. Both stayedin the same 60-point range for a third session.
perfect design thanks http://highhalstow.org.uk/stmap_21ojktcc.html?cialis.megalis.topiramate fucidin h krm In the same diary, she mentions a living will she had prepared, knowing what awaited her. She didn’t want antibiotics, a drip feed, or to be kept alive artificially in any way. “The doctors said to me,” Steve says, “that I could go against her will, but I couldn’t do that. I wanted to, I didn’t want her to die, but I couldn’t. She’d suffered too much. However much it broke my heart, it was time for her to go. My sons agreed.”
perfect design thanks http://narsg.uk/stmap_64mvltdi.html?abilify.levitra.estradiol seroquel xr 50 mg muadili David Lipton: “The most important thing is to get the global economy going again. Advanced economies are recovering and emerging markets, economies, are slowing down, and we are putting our emphasis on trying to help each country, each part of the global economy, get going again. It’s true that income inequality has risen; partly this is because people who are unemployed have a harder time, partly there are ongoing pressures from globalisation and technological change, and the ability of some in the market to make very high profits. But the most important challenge for us is to help countries get going again and also reform the financial systems so that the kind of events that we saw before can never recur.”
Where are you calling from? https://www.voyages-gallia.fr/stmap_39dykkca.html?viagra.viprogra.phexin.brahmi lexapro borderline personality disorder "Revlon's reentry into the professional salon channel comesat a time when its U.S. color cosmetics business is treadingwater," BMO Capital analyst Connie Maneaty said in a note. Shemaintained her "market perform" rating and $25 price target onthe stock.