Re: [id3lib-devel] bug reading tracknum?

[Scott W. <sc...@sl...>]

Yep, I fixed that one in CVS a while back.  I'll forward you the descript=
ion=20
of the bug in a minute.  Care to update to CVS?  We're really going to tr=
y to=20
get a pre3 out soon, as there are a lot of bugs fixed in CVS.

-Scott

On Sunday 24 March 2002 11:58 am, Douglas Zongker wrote:
> Here's a test program with some unexpected behavior:
>
>     #include <stdio.h>
>     #include <id3/tag.h>
>
>     main( int argc, char** argv )
>     {
>         ID3_Frame* frame;
>
>         // delete all frames from the tag
>         ID3_Tag tag1( "test.mp3" );
>         ID3_Tag::Iterator* iter =3D tag1.CreateIterator();
>         while (NULL !=3D (frame =3D iter->GetNext()))
>     =09tag1.RemoveFrame( frame );
>         delete iter;
>         tag1.Update();
>
>         // add a tracknum field
>         ID3_Tag tag2( "test.mp3" );
>         frame =3D new ID3_Frame( ID3FID_TRACKNUM );
>         frame->GetField( ID3FN_TEXT )->Set( argv[1] );
>         tag2.AttachFrame( frame );
>         printf( " in: %s\n", frame->GetField( ID3FN_TEXT )->GetRawText(=
) );
>         tag2.Update();
>
>         // read it back.
>         ID3_Tag tag3( "test.mp3" );
>         frame =3D tag3.Find( ID3FID_TRACKNUM );
>         printf( "out: %s\n", frame->GetField( ID3FN_TEXT )->GetRawText(=
) );
>     }
>
> When I run this, what I get out of the tracknum field is not always
> what I put into it:
>
>     % ./bugtest hello
>      in: hello
>     out: hello
>     % ./bugtest 12
>      in: 12
>     out: 12
>     % ./bugtest 7/9
>      in: 7/9
>     out: 7
>     % ./bugtest 600
>      in: 600
>     out: 88
>
> I'm using linux (RH7.2), g++ 2.96.  The problem appears to be in the
> parsing -- the tag data looks correct in the MP3 file.  Also, it seems
> to be specific to TRACKNUM -- I tried substituting a handful of other
> "ID3FD_Text" frames (e.g., MIXARTIST, LANGUAGE, etc.) and with those
> the strings always matched.
>
> Any ideas?
>
> thanks,
> dz