Hi,


I'm testing the Real Audio format into the mka container and I've some problems...

1°) With ralf (Real Audio Lossless Format) files. I try to put this file into mmg but I've an error message : The input file 'D:\TEST\Compilation_1.ra' does not contain any tracks Real Audio lossless isn't implemented into mkvmerge, right ??


2°) With ra files (i.e from lossy compression). I've noticed a problem for the Codec ID when I put them into mka :

Here from TCMP :


Here from mmg :


Why AAC Codec ID ?? Why not RA ??

Thanks.


PS : I use mkvtoolnix 0.9.4 pack.

By default AAC is used now for high bitrates when you encode with their tools. SO that's no surprise to see it here.

I think RealAudio lossless is not yet supported by mkvtoolnix or Matroska in general.

Correct.




Because RealAudio uses normal AAC and HE-AAC depending on the bitrate involved. mkvmerge just re-arranges the packets. No need for a special 'RealAudio' CodecID for that.

ok..thanks for reply


I assume Real Audio Lossless will not be integrate into Matroska, right ??

Don't think so. There are a lot of free lossless codecs that are already implemented in Matroska and the associated tools (TTA, FLAC) or that will be implemented soon (WavPack). And my (or our) time is limited enough as it is.

Yeahh..I like TTA It was just a silly question.