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Of the three classes of Microsoft DirectShow filters—source, transform, and renderer—the source filter is the one that generates the stream data manipulated by the filter graph. Every filter graph has at least one source filter, and by its nature the source filter occupies the ultimate upstream posi 阅读全文
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The next four chapters of this book deal with Microsoft DirectShow applications that capture mediastreams for manipulation by DirectShow. In most of the examples to follow, the streams will simply bewritten to disk for later playback or manipulation by another DirectShow application. The filter grap 阅读全文
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Although sample DirectShow filter graphs can be constructed and tested in GraphEdit, application programmers want to use standard programming languages—either C or C++—to construct DirectShow applications. Although Visual Basic is an easy-to-learn and fully functional programming environment, the Vi 阅读全文
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The basicsChapter 1DirectShow ConceptsFrom the viewpoint of the application programmer, Microsoft DirectShow is composed of two types ofclasses of objects: filters, the atomic entities of DirectShow; and filter graphs, collections of filtersconnected together to provide specific functionality. Just 阅读全文
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SDL(Simple DirectMedia Layer)是个好东西！要想开发一个自己的跨平台的媒体播放器(如ffplay等)，它就大有武之地啦。SDL的入门介绍有很多，比如中文的有“龙飞”的洋洋洒洒一个系列：http://www.cppblog.com/lf426/archive/2008/01/... 阅读全文
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“乾，元亨利贞” －－《易经》VLC Media Player是和Mplayer齐名的优秀的开源播放器。我想用它休闲娱乐，也想做二次开发，当然不想后者的不成熟打扰前者，故做两种安装就很必要啦。官网上有讲如何安装和编译，但有些凌乱，现将我的实践记录并整理如下。I. 用于播放的安装Ubuntu下的安装很容易，在命令行下： $ sudo apt-get install vlc 如果想要插件，则在后面加上相应的插件选项即可： vlc-plugin-alsa - ALSA audio output plugin for VLC (install it if sound doesn't... 阅读全文
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引言 我时常暗诩腹有点墨，口长辩才，时不时人前人后地炫耀。下面的故事是一面镜子，镜子中的我夜郎自大，虚虚浮轻狂。 汗！1. 有一个秀才去买柴，他对卖柴的人说：“荷薪者过来！”卖柴的人听不懂“荷薪者”（担柴的人）三个字，但是听得懂“过来”两个字，于是把柴担到秀才前面。秀才问他：“其价如何？”卖柴的人听不太懂这句话，但是听得懂“价”这个字，于是就告诉秀才价钱。秀才接着说：“外实而内虚，烟多而焰少，请损之。（你的木材外表是干的，里头却是湿的，燃烧起来，会浓烟多而火焰小，请减些价钱吧。）”卖柴的人因为听不懂秀才的话，于是担着柴就走了。管理者平时最好用简单的语言、易懂的言词来传达讯息，而且对于说话的对象 阅读全文
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如同星际中“微操”一样，会的不见得行，不会的肯定是菜鸟 VC快捷键 快捷键 功能 备注 F1 调出MSDN 如果安装了 F3 寻找搜索栏中内容的下一个位置 先在搜索栏中输入 F5 程序指针运行到下一个断点处 调... 阅读全文