.avi，.wmv和.mpg以外的媒体文件 [英] media files other than .avi, .wmv and .mpg

问题描述

谢谢大家在此板上，我现在有一个Uisng DirectShow C ++编程应用程序，可以很好地捕获上述类型的媒体文件中的帧和配乐剪辑.它非常适合AVI，WMV和MPG(也可以从MP2和MP3发出声音).

继续-谁能告诉我我的过滤图还可以处理其他类型的视频媒体文件吗?从Directshow文档告诉我的内容中可以想到ASF-还有其他内容吗?有人知道我在哪里可以得到这些其他格式的一些示例吗?

其中有一个文件"rendering.asf".在SDK树中，但是当我尝试使用Media Player打开它时(我在XP Pro上使用V11)，我收到一条消息，指出需要插件:



我单击该按钮转到该网站，但找不到任何有用的信息.<

这里的任何指导将不胜感激.

Hi,

Thanks to you all on this board I've got an app now Uisng DirectShow C++ programming that very nicely grabs frames and soundtrack clips from the above types of media files.  It works great for AVI, WMV and MPG (also sound from MP2 anfd MP3).

Continuing on - can anyone tell me what other types of video media files my filter graphs should be able to handle?  ASF comes to mind from what the Directshow documents tell me  - any others?  And does anyone know where I can get some examples of these other formats?

There is one file "rendering.asf" in the SDK tree, but when I try to open it with Media Player (Im using V11 on XP Pro), I get a message that a plug-in is needed:

"An audio codec is needed to play this file.
To determine if this codec is available to download from the Web, click Web Help"

  I click the button to go to the web site, but don't find anything useful.

Any guidance here would be appreciated.

推荐答案

ASF和WMV是同一件事.严格来说，ASF是容器格式，而WMV是视频格式，但是当WMV保存到ASF容器中时，通常称为.WMV.但是，对此没有严格的规定，因此您可以根据需要将WMV文件命名为.ASF.我没有看到您所引用的rendering.asf文件，您在哪个SDK中找到它?

就文件格式而言，列表是无止境的.但您可能会遇到其他一些相当常见的问题:
MP4-Mpeg4通常用于IPod OGM-Ogg Vorbis多媒体格式
OGG(仅音频)-Ogg Vorbis音频 KV- Matroska视频文件
DVR-MS(包含MPEG-2数据的ASF文件)

如果只是对文件扩展名进行一些搜索，则可以找到一些参考.

ASF and WMV are the same thing.  Strictly speaking ASF is the container format where as WMV is the video format, but when WMV is saved into an ASF container it is typically named .WMV.  There's no strict rules about this however, so you can name your WMV files .ASF if you like.  I haven't seen the rendering.asf file you refer to, which SDK did you find it in?

As far as file formats go the list is pretty endless.  But some other fairly common ones you might run into:
MP4 - Mpeg4 is commonly used on the IPod
OGM - Ogg Vorbis Multimedia format
OGG (audio only typically) - Ogg Vorbis audio
MKV - Matroska video file
DVR-MS (ASF file containing MPEG-2 data)

You can find some references if you just do some searches on the file extension.

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