视频和文字同步的方法有哪些？
我想要两个流。一种是传统的流媒体视频，另一种是文本。我还将构建一个界面，允许用户在观看视频时创建文本部分。这些视频的背景通常是一个人被拍摄做演示，例如，第二天晚些时候，教练将进行文本注释（结构化数据是一个优点），结果是文本流。
看来这对于 Silverlight 是可能的（请参阅最新的文章 MSDN）。但是，如果有的话，还有哪些其他方法呢？如果有的话，请说明推荐的理由。谢谢。
另外，我更喜欢安装软件即服务托管解决方案，但是，不要让这阻止您给出答案。另请记住，用户不必对视频源进行任何重新编码，文本流应该以某种方式分开，以将教练的评论同步到视频中的任意时间戳。
I would like to have two streams. One being traditional streaming video and another being text. I will also build an interface that allows the user to create the text portion while watching the video. The context of these videos are usually that of an individual being filmed doing a presentation and later the next day for example, a coach will make text annotations (structured data is a plus) with the result being the text stream.
It seems this is possible with Silverlight (see the article in the latest MSDN). However, what other methods are there if any? If there any, please give the reasons for why you are recommending them. Thanks.
Also, I would prefer something that inst a software as a service hosted solution, but, dont let that keep you from giving an answer. Also keep in mind, the user shouldn't have to do any re-encoding of the video source, the text stream should be separate with someway to synchronize a coach's comments to an arbitrary time stamp in the video.
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http://slvideoplayer.codeplex.com/ 该项目很好地支持根据视频时间显示标记 -线。目前它是使用 SL2 构建的，但您可以轻松地将其升级到 SL3。
http://slvideoplayer.codeplex.com/ This project has good support to show markers based on video time-line. It is currently built using SL2 but you can upgrade this to SL3 easily.