[MPlayer-dev-eng] [PATCH] Alternative RealAudio decoder

[Florian Schneider]

Hi,

Arpi wrote:
> 
> it was not new for me, not even surprise, knowing how similar rm to asf is
> asf uses teh same thing for audio (even teh video sub-demuxer is similar)

My learing curve is rather high when it comes to media formats.

> just different reordering algo (asf just rotate matrix by 90 degrees but
> doesn't reorder columns)

I care to claim they did it (the reordering) so they cannot violate 
"patents". :-/

> 
> no
> they compressed that rm from 30fps (ntsc?) source, but to keep the very
> restricted bitrate and acceptable quality, they dropped frames.
> so they have 30fps in the header (as wanted playback rate) but actually
> there is avg 20 frames per second stored in the file.
> 
> atmos told me that rm codec can do interpolation in such cases to get the
> missing frames - maybe those custonmcalls are to control this, and mayeb
> postprocessing and other cpu-eating thingies
> 
> 

[Pen3.rm]
> i don't know why does it ignore last 0-3 sub-packets of big packets
> 

Let's see if I can find it out.

[...]

This means the current real media playback status is:

- audio is working
- a/v sync is correct
- this weird fps deviation problem in the lotr2 trailer persists

Am I correct?

> 
> afaik The Matrix has such scenes, but i don't have that dvd
> i'm also hunting for such discs
> 

Thanks for the tip.

Regards

Flo