ID3v2 null reference

[ares]

Hi every one!

during my tests i´ve faced a problem. my problem is simple yet not easy to fix because i can´t figure out why it doesn´t work. let me explain...

few of my files doesn´t have ID3v2 so when i check them the Id3v2 is null... that´s ok so far but if i want to add a coverart i need ID3v2 in order to store that cover in the file.. my problem comes that if i try to add an ID3v2 to the file i can´t! i tried to instantiate the null reference in order to create a new class and save it but no luck

what am trying is this:

id3.ID3v2Tag = new ID3v2Tag();

of course it fails as there´s not constructor for that which i need in order to fill the id3.ID3v2Tag that equals to "Null" at this point. last but not least i´ve noticed that the library doesn´t recognize the duration on some files and it returns "00:00:00" but it recognize the id3 tags without problems... is that probably a bug???(check out the attached pic)

can someone help me out with that?

UPDATE:
id3.ID3v23Tag doesn´t exist for me nor id3.WriteFlag

[MitchHonnert]

few of my files doesn´t have ID3v2 so when i check them the Id3v2 is null

There's definately something going on because when a file doesn't have an ID3 tag, the ID3v1Tag and ID3v2Tag classes should be empty, but instanciated. I just tried stripping off the ID3v2 tag of a file and this is the behavior I got. Maybe there's something unique about the files you're trying to read. Can you post them somewhere where I could download them?

- Mitchell S. Honnert

[ares]

Originally Posted by MitchHonnert

There's definately something going on because when a file doesn't have an ID3 tag, the ID3v1Tag and ID3v2Tag classes should be empty, but instanciated. I just tried stripping off the ID3v2 tag of a file and this is the behavior I got. Maybe there's something unique about the files you're trying to read. Can you post them somewhere where I could download them?

- Mitchell S. Honnert

I´ll try to upload the file to zshare so you can download the file and check it... one thing i noticed is that Windows media player recognize that file and cover for some strange reasons.

as i sayd in my last post i noticed that some of the code i´ve found for the library doesn´t work for me as its missed somehow... such as ID3v23Tag etc.. and also the Duration on some files are 00:00:00 which is very strange.

Here´s the link of the file without ID3v2Tag:
http://www.zshare.net/audio/56964752cdeda7a7/

Here´s the link of the file with 00:00:00 duration:
http://www.zshare.net/audio/56964817efff4e2f/

Thanks for your help and awesome library!

[tusk]

Mitch> For his 2nd problem, I highly believe it's connected to the Mpeg infos pb I was posting on (here).

I tested his mp3 with UltraID3lib -vs- the Mpeg lib I wrote and it's the same as in my mp3 tests. (Ulib has an error and cant calculate Bitrate + duration, therefore giving 00:00)


Hope this helps

[tusk]

Here´s the link of the file without ID3v2Tag:
http://www.zshare.net/audio/56964752cdeda7a7/

Ares > For this file, do you manage to have UltraId3 "Read" it ?? Because here it gives me an exception right away.


Mitch > Looking a little bit into this specific file, it looks like to me that there's an issue with the TIME frame. UltraId3 has an error "{Name = "ID3v2DurationHoursMinutesFrame" FullName = "HundredMilesSoftware.UltraID3Lib.ID3v2DurationHour sMinutesFrame"}"

I filled the TIME frame data with $00 and UltraId3 lib could then .Read it normally and gave good results.

[ares]

Originally Posted by tusk

Ares > For this file, do you manage to have UltraId3 "Read" it ?? Because here it gives me an exception right away.


Mitch > Looking a little bit into this specific file, it looks like to me that there's an issue with the TIME frame. UltraId3 has an error "{Name = "ID3v2DurationHoursMinutesFrame" FullName = "HundredMilesSoftware.UltraID3Lib.ID3v2DurationHour sMinutesFrame"}"

I filled the TIME frame data with $00 and UltraId3 lib could then .Read it normally and gave good results.

i was able to handle the error but anyways i get 00:00 and no id3 at all.. it seems like it doesn´t work somehow.. sadly i haven´t found a fix for that. anyways here are few pics of the app am coding in C# so you get an idea what am doing
here is also a small video of the app in action:
http://www.youtube.com/watch?v=T0oXi...layer_embedded

[ares]

i couldn´t post one more pic in my last post... this one shows my app a bit better i guess...

[haden]

Hi

Was the problem with duration ever solved? I'm facing the same problem, and it can't read the bitrate as well. all others are fine.

Regards
Kim

[MitchHonnert]

I tried to download the files from ares too late and was not able to get them. Would you be able to upload them somewhere so I could use them to diagnose the problem?

- Mitchell S. Honnert