What is a filter?

[29988122]

Hi, sorry for replying this old post.

Since I were directed here by google search, this post kind of solved my problem.

What I don't know is: What is a filter?


All I understand are like this

media file
↓
splitter(sent here by player according to the container type)
↓
audio/video decoder(such as .264 divx xvid/pcm flac)
↓
renderer (only know the nouns such as EVR, overlay mixer and VMR9. are they used to output decoded data streams to video and audio card?)


Although I have read the contents from wikipedia http://en.wikipedia.org/wiki/DirectShow , I still cannot understand what a filter is.

Thanks for your kindly reply!

[J_Darnley]

In the case of DirectShow, a filter can be anything that goes into the graph you illustrated. It refers to anything from the splitter to the renderer.