[linux-audio-user] Any interest in DVD-Audio?
dave at dchapman.com
Thu Mar 3 13:26:12 EST 2005
Tim Orford wrote:
> hi Dave
> by coincidence, an unencrypted dvda just landed on my hard drive. Do
> i assume correctly that there are no aob demuxers available? Mplayer
> seems to have some support, but on 1.0pre6 it detects this file as
> stereo 96k with a wordlength of 0bits. I havnt tried cvs.
I have more or less nailed the format of an AOB - it is similar enough
to a VOB for mplayer to recognise it (both are MPEG Program Streams with
LPCM audio stored as a private stream). But an LPCM private stream in
an AOB file is not the same as the one in a VOB - the LPCM headers are
AFAIK, there are no AOB demuxers available at the moment, but I'm
planning to write one. Keep an eye on my project at
http://dvd-audio.sourceforge.net I've already partially document the
contents of the AUDIO_TS directory.
>>you are left with a standard which allows 18 combinations of samplerate
>>and sample wordsize for 2-channel stereo audio (including 16-bit/44.1KHz
>>RedBook, and going all the way up to 24-bit/192KHz), plus a range of
>>6-channel uncompressed surround sound formats.
> so just out of interest, are current players too useless to play wav files,
> or are you looking for some other additional feature of the aob format?
Yes, it's not possible to "author" a DVD containing WAV files. But that
I mean control the order the WAVs are played back in, decide if there
should or should not be gaps between tracks, offer alternative playlists
for the same content etc etc.
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