What does pygame.Movie mean by `an MPEG file'?

[Christophe]

Kilian A. Foth a écrit :
> I just found this amazing video puzzle game written with the pygame
> library, which promises to be infinite fun - but I can't get it to
> decode any video file I own, except the game's own example .mpg. All I
> have is lots and lots of useless .avi, .mp2, .wmv, and so on...
> 
> Now, the pygame.Movie documentation says the Movie class can decode
> `MPEG movie files'. I know little about multimedia, but I thought
> divx/xvid video was a variant of MPEG4, and mp3 audio a variant of 
> MPEG1 Layer 3. So obviously, `MPEG movie files' means something more
> specific than just `contains MPEG streams'. Does anyone know what
> precisely it means? Even better, how should I instruct transcode or
> similar programs to re-encode existing files so that Movie objhects
> can be created from them?

An mpeg file is a file with the .mpg or .mpeg extension. IIRC, it's a 
raw mpeg 1 or 2 stream dumped in a file. Not sure about the raw stream 
but I'm sure it can only be mpeg 1 or 2.