AVI view file information

[norlane]

if i have a video file encode with XvID and AVI container.
Is there a program that can view infomation like file header info , PAR values etc.
any thing like that thankx.

[Enigma]

GSpot

[mirkosp]

MediaInfo.
GSpot is fine for AVIs, but doesn't know all codecs and fails with quite a lot of other common containers. MediaInfo tells you a LOT more stuff about a much wider variety of containers.
Be advised that neither GSpot nor MediaInfo will be accurate in reporting the framerate if it is VFR.
However, since you have an AVI Xvid, you probably have a CFR. Also I doubt it has a PAR different to 1.0, so if it looks weird, it means who encoded did it wrong.

[Kawatta-kun]

Variable frame-rate? o.O

[mirkosp]

Variable frame-rate? o.O

Yes. If a file is VFR then the reported FPS will be the average of the video. If you want to know the correct framerate of a certain part, you'll have to somehow demux the timecodes and check those (hint: when loading with ffvideosource you can make it output timecodes, should work with at least mkv and mp4).

[Mister Hatt]

>AVI
>VFR

AVI's VFRaC is still a constant rate as far as the container, or anything else really, is concerned, so that's not a problem.

[mirkosp]

>AVI
>VFR

AVI's VFRaC is still a constant rate as far as the container, or anything else really, is concerned, so that's not a problem.

I know, I said the note about vfr more for a general FYI when dealing with mkvs and mp4s. The "probably" was more due to the fact that I don't really know what gets reported when dealing with those pesky 120fps AVIs full of null frames, really.

[Kawatta-kun]

isn't fps constant? Now you caught me there out of surprise :'o

[mirkosp]

For AVI it is. For MKV and MP4 it can very well be variable, and in some cases it actually SHOULD be depending on the content... even DVDs and BDs can be VFR, heh.

[Kawatta-kun]

I'm tryin' to understand. Then a video isn't actualy 25fps, for instance? Can be 20 or 24 or wtv, per second? Is like that?