dshow versus vfw audio codecs?

[nnever2000]

Hi all,
I known that there are two type of decoder in windows for the video, dshow and vfw. There are also two type of decoder for the audio?

I ask because I installed ffdshow with mp3 support enabled, anyway I can't see the mp3 encoding entry in the audio codec (i know that there are one and only one entry even if the codec is "decoding only")

Thanks

[clsid]

ACM is for audio what VFW is for video.

[nnever2000]

ACM is for audio what VFW is for video.

So, there is Dshow audio decor and ACM audio decoder?

So FFdshow only has the dshow audio decoder right?

[clsid]

ffdshow has no ACM.

Besides DirectShow, VFW and ACM, there also exist DMO (DirectShow Media Object). That is mostly only used by Microsoft. For example for the Windows Media codecs. Windows Media Player 11 uses a DMO MP3 decoder.

[nnever2000]

ffdshow has no ACM.

Besides DirectShow, VFW and ACM, there also exist DMO (DirectShow Media Object). That is mostly only used by Microsoft. For example for the Windows Media codecs. Windows Media Player 11 uses a DMO MP3 decoder.

Argh! Why so many codecs in my computer??

Thanks for your reply! The fog is a bit far over now.

[squid_80]

ffdshow has no ACM.
Wait, where/when did it go?

[clsid]

That ACM is not an audio decoder ;)

[nnever2000]

I apologize, I'm a novice, but I have another question:

if ACM is only for encoding, why after installed AC3ACM

http://fcchandler.home.comcast.net/AC3ACM/index.html

virtualdub and tmpgenc begun able to "decode" ac3 audio?

[clsid]

ACM/VFW can support both decoding and encoding. In fact most do both.

[nnever2000]

ACM/VFW can support both decoding and encoding. In fact most do both.

Ok, I understand

thanks