#musicbrainz

Now grooving to: Nicholas Hooper ~ Professor Umbridge (2:32) (from Harry Potter and the Order of the Phoenix) (2007)

JonnyJD_: Hi Jonny, if you’re here i have something that you must know

i think you know about it but i was wondering why we wouldn’t have any FreeDB→DiscID convertor, but it seems that the info that we have for the length of last track is not exact http://freedb.org/freedb/rock/570d1c08 for all tracks we can have the length in frame but for last track, where we can use the total length in second, we are missing the frames, the total length in frames+1 is then floored to lowest second…

it would explain why my little FreeDB importer i was writing was never matching our releases… — "# Disc length: N" in http://ftp.freedb.org/pub/freedb/latest/DBFORMAT

i don’t know if you read the logs… it’s a pity their discid format is not storing either the total frame count or the last frame number instead of storing the total length in seconds (which is more human readable but what human is reading the raw data anyway)… this must have been covered already by many previous discussions…

btw “total frame count” or “the last frame number” means the same :) — see you next time, i thought you were here…

…I think I may have unintentionally stuck my foot in my mouth http://musicbrainz.org/edit/31916667

want some ketchup?

jesus2099: not sure what you are talking about. When you just have the ID (either FreeDB or DiscID) you can't generate the other ID (without ID lookup on the server). Both IDs are or include hashes so are not reversible.

but the MB server has the full TOC so server-side a "conversion" somewhat works. Except that that the server has two different FreeDB IDs. One is the "real" CDDB ID which often has collisions (meaning there are multiple DiscIDs that match)

And the other one is a "fake" misc FreeDB ID that is just an encoding of the "medium ID (number)" on the MB server and a unique ID on the MB server

If you have the TOC or CD locally, you can calculate FreeDB and DiscID. That is what libdiscid does.

So I have no clue what you want with a FreeDB->DiscID converter. Without access to a full TOC (server or local) it doesn't work and with server access it is not necessarily unique

Mineo: I would, but I'm fresh out of hash browns.

you do know about http://musicbrainz.org/doc/FreeDB_Gateway I guess. Which is a search, not a lookup, since it is not unique.

I mean, there is a reason we are not just using FreeDB IDs.. they don't work very well

note that a FreeDB lookup does send the freeDB ID *and* the TOC so the results given by the FreeDB gateway are somewhat okay

hi JonnyJD_:  ! :)

i was generating a TOC submission URL (which gives the DISCID MB style) from the mb.org/freedb/xxx/xxx page

but the last track would always be exact seconds, without remaining frames / milliseconds…

what?

i wanted to import complete track length (not only seconds) from that source… it could have been handy when no CD in hands

you have a TOC submission URL. Okay, normally that is a DiscID plus offsets/TOC.

what about mb.org/freedb now?

can you give an example?

my CD https://musicbrainz.org/cdtoc/PuOWMzjRim2TpCIFL...

gives this TOC URL for instance https://musicbrainz.org/cdtoc/attach?toc=1%208%...

has this FreeDB (MB page) https://musicbrainz.org/freedb/rock/570d1c08

http://freedb.org/freedb/rock/570d1c08 is missing the last track lmengtgh we can only compute up to seconds, not frames if i understood completely

but there is another FreeDB request that could give me TOC ?

Yes i’ve read their docs it seems they just don’t need that precision, they mostly care of the start of each track frame accurately but not the CD end

(only seconds)

what you need to do is use the FreeDB gateway with the information provided (given FreeDB TOC, which is inexact as you noticed) then get a list of results and choose the best

well, CDDB was never meant to be an input for other DBs or for other IDs

you just can't "calculate" a usable MB DiscID from FreeDB info

i’ve lost my time but not completely, now i know that there are 75 frames per seconds in an audio CD :) (it’s said to compute to the famous 44100 khz)

usable in a sense that you get the result you want (in general, you might be lucky sometimes)

yes, we can’t, but we are only missing ONE piece of information, a pity… ;)

yes, that is why the FreeDB gateway works somewhat.

Didn't we have a way when adding a release by MB discid to use the track titles from FreeDB?

we do

but we would only set secondes… i was just looking for a way to get milliseconds for all tracks (i’m missing last track here)

this way works, because you have the full TOC so you can match TOC -> MB Discid *and* FreeDB ID

with that thing we are not using anything from FreeDB except titles. The TOC (with frames) comes from the user trying to add a release with MB Discid + TOC

meaning: the only good way to import from FreeDB is when you have the disc in your drive

from FreeDB we will not have full TOC, last track will only be in rounded to inferior second

yes

i was precisely doing stuf for when i don’t have disc in hands ;)

you have a link to a WIP of your "import from FreeDB" userscript?

you basically need to implement the CDDB protocol to check if the release is already in MB (and give the user a list, since it is not unique)

i have deleted it… it was hopeless… but it was almost same as my COPY_TOC code, just the parsing and compute varied a little

my user scripts was launched from https://musicbrainz.org/freedb/rock/570d1c08 and would add another button to lead to http://freedb.org/freedb/rock/570d1c08 and then compute

jesus2099: This is what you need to parse and list with your usercript: http://freedb.musicbrainz.org/~cddb/cddb.cgi?cm...

somethink like "if the release is already in that list.. don't import it from FreeDB"

reading that list is mandatory though to check if the release is already in MB

what is B20DEE0B ?

the FreeDB ID

note that the "misc" results have different (fake) FreeDB IDs

so for a "normal" CDDB result you would have the same FreeDB ID in the results but with different genres (instead of "misc")

all this CD stuff is interesting… :)

jesus2099: FYI: this is the same query when using FreeDB.org: http://freedb.freedb.org/~cddb/cddb.cgi?cmd=cdd...

(freedb.org needs the handshake, our gateway doesn't) and the result looks like what I called a "normal" result

oh and that example is bad in terms of: that freeDB ID in the query doesn't match the TOC given in the query.. :-/

this would be the query with a correct FreeDB ID: http://freedb.freedb.org/~cddb/cddb.cgi?cmd=cdd...

thank you for info, i’m always interested in CD stuff. but this thing is useful for track names but i take track names from my release or photos… ;) i was just looking for detailed track times.

and the same (corrected) query to our gateway: http://freedb.musicbrainz.org/~cddb/cddb.cgi?cm... (note the rock entry on the bottom, which is the only real FreeDB ID)

well, for track times you can forget about CDDB

JonnyJD_: in my setup, isrcsubmit.bat launches my editor with isrcsubmit.py… would it be harmful in general to call “python isrcsubmit.py” instead of “isrcsubmit.py” in that .bat file ?

« you can forget about CDDB » yes :)

(for *last* track time)

jesus2099: it does the same thing

It’s special probably to my PC to have *.py associated to an editor…

especially, just "isrcsubmit.py" might not work on every windows setup

so maybe it’s safer to be specific and call the “python.exe isrcsubmit.py”… ?

well, if you just install python the normal way you even might have to doe "C:/Programs/Python/Python.exe isrcsubmit.py"..

Python doesn't install itself in the PATH either I think. (or add to the PATH)

from what I remembered that .bat file worked for me though

(i checked that option but) it was optional indeed…

hm, I don't even remember having such an option, but that was quite a while ago

maybe it’s better to leave it as is… i thought i asked (checked by default) python to associate *.py with itself but it seems that my emeditor settings kept its setting

so the bat file doesn't work for you out of the box?

no but it’s a special case…

before i told windows to open all *.py with emeditor, it would work.

not sure why you would associate *.py with an editor as default action. There is that "edit" action..

and with Vim I normally just install "edit with vim" to the context menu

i don’t remamber why… but i have just installed python… usually i just read *.py files to learn some stuff (in my editor) but i was/am not really using python…

yes... but don't do that :-D

you wouldn't do that with .exe files either (though they are not fun to read)

yeah yeah yeah… ;)

In a disassembler?

jesus2099, I finally intal

*installed the Super Mind Control.

omg, who will you remote conrtol, now ?

I had long been in doubt, because of the many components. :)

yes… it’s scary…

But it works fine so far.

but i had so many little scripts… i stil want to merge some others in there… but i don’t know…