[F] Unknown MP4 atoms are deleted on save



Thank you Florian!

Version 2.48e fixes all of the issues that have been stated in this thread! :smiley:



what is the appropriate data range of values for the rate atom?

is it unrated, and then 0-5 or 0-100 or what? what does twonky do?



Guys, can some one help me with this ratings ?

I am using winamp for storing my music in library and use ratings, and now I decide to start using twonky server for sharing music and video between devices at home, can I save somehow ratings so that server can using this ratings data ?



winamp only saves ratings to tags/files if you check / opt-in to the pref, and even if you do that, it does not work on mp4/atom based files afaik. ratings for those are only in its ML DB.

i think twonky created its "own" standard for such files, and uses its own custom atom for such files, but i have yet to find out what atom it is, and what data range is acceptable. (i don't use twonky)

i would like to know, b/c then i can lobby for winamp to support it, and i am basically singlehandedly responsible for winamp now supporting ratings in files/tags, and the data ranges they use.



Somehow twonky finds a rating in the files that I never set ratings manually.
I found this link http://www.twonkyforum.com/mediawiki/index...Twonky_Database
here we see that m4a format have rating tag, so can i use mp3tag for changing all my tag data to this new tag format, and then manually reset ratings to them ?



I remember one more sing.
Some time ago, when I had to move my audio to another HDD, I made this steps:
First I create db dump in winamp. It creates xml file, so then I use php for replacing paths for all files.
And I don't need to re rate all my music. In xml dump file you can see some thing like this:
So winamp use range 0-100 for rate files.



Оh yeah, i add tag rating = 5 and twonky found all my files )

I was wrong, it was enough to add the comment "rating=5" to all files



i'm not sure how to respond to all that above...

i don't really know twonky or mp4s/atoms very well. i know there is an "official" atom called rating, aka "rtng" but that is for age groups, meaning explicit or not, like G, PG, R, that kind of thing.


afaik, there is no official tag for ratings in the 0-5 stars sense. twonky, afaik, does its own thing, aka "rate"

the xml data dump in winamp is an itunes import/export thing. but the ratings are from the winamp DB, they aren't in the files (meaning, mp4/atom type files).

so have you solved this by putting ratings in comment tags? does twonky support that? that sounds like a separate solution from using a 'rate' atom. and i am pretty sure winamp doesn't support ratings in comment tags.



i should also add that winamp uses a 0-255 range for POPM frames, aka id3 files, and 0-100 for vorbis/flac.

i'm not sure how it does wma, but i am pretty sure it does write ratings to those files.



I just search in winamp:
and add for all those files comment:
and twonky find all ratings data in comments :slight_smile:



ok, that makes sense to me, but lets be clear at what you are doing:

you are getting all your winamp rated stuff grouped, (which does not require the rating in the file btw, nor does it require an actual search query, you can just sort by the ratings column in the ML and highlight all the same valued ones using the shift key+left click).

but either way works, and you then do a mass edit where you enter the rating string value into the files COMMENT field, and twonky then recognizes it. right?

that makes sense to me, but it is a kludge. i actually use the comment field for comments, so that would not work for me.

my guess is twonky recognizes POPM for id3 files, RATING for Vorbis files, and %rate% for mp4/m4a etc type files.

since mp3tag also does %rate% for those kind of files, it seems to me what you really wanted to do was get your winamp ML DB based ratings in the %rate% type atoms for those kind of files, right?

at that point, its just a question of either A. getting winamp to support %rate% atoms, as i am trying to do in their forums, or B. figure out how to get your results set from winamp into mp3tag so you can have mp3tag put the rating in the %rate% atom.



yeap i use mass edit for files with rating "N"



i have never seen winamp do that. i only see winamp overwrite existing comments in such a scenario. afaik, winamp has no support for multiple entries per frame.

mp3tag can do that, not winamp... unless i'm completely wrong, in which case i'd like it proven to me.



maybe i miss somesing, i cant find such comments now (



well, the point is that the best solution for both of us is to put the rating in a tag/frame/field/atom meant for ratings, and not misuse the comment field for that, even if it is a multi field.

winamp already supports writing ratings to id3, vorbis, and wma. we just need to get them to do it for mpa/mp4/atoms too.

go to the end of this thread and show your support for that idea!



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