[MPlayer-dev-eng] NuppelVideo

[Alex Beregszaszi]

On Wed, Dec 26, 2001 at 11:40:16AM -0700, Mike Melanson wrote:
> On Wed, 26 Dec 2001, Johannes Feigl wrote:
> 
> > since realencoder 6.0 there is a new codec, "G2" - generation 2.
> > there is not opensource decoder for this.
> 
> 	There's nothing terribly mystical about G2. As I recall, that's
> the PR-friendly name for their audio codec named Cooker. It's been a long
> time since I poked around in RealMedia, but I seem to recall there was a
> family of 6 codecs, 3 for audio and 3 for video:
> RV10: As has been mentioned, H.263-based; not an unreasonable guess
> RV20: RealVideo 2.0, nothing known
> RV30: RealVideo 3.0,nothing known, but I don't believe I've ever seen any
> media encoded with it
> DNET: apparently one of their original audio codecs, to be used with music

Hmm', libav (ffmpeg's demuxer/muxer part) is identifying DNET as AC3.

libav/rm.c:572
                if (!strcmp(buf, "dnet")) {             
                    st->codec.codec_id = CODEC_ID_AC3;

> SIPR: SiprNet, based on ACELP, and is great for compressing voice
> COKR(?): Cooker, the fabled G2 audio codec
> 
> > but I would say so it is very similar to quicktime.
> > soreson is there the new codec, and with mplayer we can only watch older
> > QT-Files ...
> 
> 	Most multimedia file formats sport the same features, and RM is no
> exception: They usually have a header with info about A/V, an index of
> encoded chunks, and the actual chunks. RM is actually much simpler (IMO)
> than QT or even AVI, and well-documented by Real themselves.
> --
> 	-Mike Melanson
> 
> _______________________________________________
> MPlayer-dev-eng mailing list
> MPlayer-dev-eng at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-dev-eng