You can just use Directshow with no issues. The only issues you may have surround some of the codecs. Some of those are licensed. Distribution of those "can" get complicated. In general (Though this isn't always the case so make sure you check the license!) decoders can be distributed freely but encoders need to be licensed in some form of other.
As for what input and output codecs it can use ... it can use pretty much anything with a DirectShow or DirectMedia Object built for it. If there is a format there is usually an encoder/decoder for it.
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您可以直接使用 Directshow，没有任何问题。您可能遇到的唯一问题与某些编解码器有关。其中一些已获得许可。这些“可以”的分配变得复杂。一般来说（虽然情况并非总是如此，所以请确保检查许可证！）解码器可以自由分发，但编码器需要以某种其他形式获得许可。
至于它可以使用什么输入和输出编解码器......它可以使用几乎任何带有为其构建的 DirectShow 或 DirectMedia 对象的东西。如果有一种格式，通常就会有一个编码器/解码器。
You can just use Directshow with no issues. The only issues you may have surround some of the codecs. Some of those are licensed. Distribution of those "can" get complicated. In general (Though this isn't always the case so make sure you check the license!) decoders can be distributed freely but encoders need to be licensed in some form of other.
As for what input and output codecs it can use ... it can use pretty much anything with a DirectShow or DirectMedia Object built for it. If there is a format there is usually an encoder/decoder for it.