Can't open MKV files

[ELITEeNergizer]

I've tried using FFMpegSource2("C:\file.mkv") as my script but windows media player is giving an error that it couldn't open the file I don't have the codecs. It works fine when I do FFAudioSource("C:\song.mp3") and Version(). I have CCP installed as well.

How can I open MKV files with AviSynth?

[Mister Hatt]

FFVideoSource() for starters. Then depending on the codec inside the MKV, you'd have to know if your LAVC decoder can handle it or if it's being offset elsewhere, and if so what that other decoder is doing.

[Enigmo]

Use DirectShowSource.

[mirkosp]

Use DirectShowSource.

No, don't. It's not frame accurate. FFVideoSource is the better choice unless there is a more specific filter to better handle certain cases.

[Mister Hatt]

Has anyone setup the LAV filter decoders for use in avs yet? FFMS2 uses libav direct and DSS uses ffdshow, but I wonder how accurate it is with LAV filters? Probably not very, but I'd be interested in actual stats on that.

[mirkosp]

DSS uses ffdshow

DSS/2 use whatever directshow is set to use, hence even LAV Filters or CoreAVC or whatever you have as default for DirectShow. They underlying issue is that DirectShow itself does not require frame accuracy when requesting a frame X and can give you X-1 or X+1, for example, which in turn means that LAV Filters can't be checked accurately with DSS/2 anyway.

[Mister Hatt]

I know that, my question was more if anyone had tried DSS and friends with LAV filters instead of ffdshow. A sane setup will always use, for the moment, ffdshow though.

[mirkosp]

I did try but the issue is always the same, so that's the point.