Ref:Help! Frames not being rendered - mad-dev

17 Oct 2002

      Hi Mark,
I came to know that You have a file with ID3v2.2 tag
I am looking for this specified tag.
If you can share that tag with the list I would be very thankful to 
you.
I have refered to the standards and specifications on ID3lib.org 
but to get more clearer picture I need the real tag.
Actually I am trying to decode and parse these tags using Assembly 
Language.
Also if You have ID3v2.4 tag share that too.
Please share with me. 
Thanks & Regards,
Rahul Mehta
On Thu, 10 Oct 2002 06:28:07 -0700
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Today's Topics:

Help! Frames not being rendered. (Mark Malson)
Re: Help! Frames not being rendered. (Rob Leslie)
Re: Mac OS9 / CodeWarrior (pmisteli)
Re: Bug in libid3tag (Martin Hedenfalk)

--__--__--
Message: 1
Date: Wed, 09 Oct 2002 22:38:43 -0400
From: Mark Malson mark@mmalson.com
To: Rob Leslie rob@mars.org, mad-dev@lists.mars.org
Subject: [mad-dev] Help! Frames not being rendered.
I have a file that was tagged with an id3v2.2 tag. When I go to write 
out
the tag, most of the frames are not being written out.
When the tag is parsed, it hits this snippet in id3_frame_parse 
several
times:
if (ID3_TAG_VERSION_MAJOR(version) == 2) {
    xid[0] = 'Y';
    xid[1] = id[0];
    xid[2] = id[1];
    xid[3] = id[2];
id = xid;

flags |=
  ID3_FRAME_FLAG_TAGALTERPRESERVATION |
  ID3_FRAME_FLAG_FILEALTERPRESERVATION;

}
...and the flag bits that are being set, as far as I can tell, 
function
solely to prevent the frame from being rendered.
I'm guessing that because these are older frame types (TT2, TP1, 
etc.) that
they are being parsed and flagged so that the lib can create a frame 
with a
newer tag type? and write it out instead? But it looks like most of 
my
frames have these flags set.
Sometimes the frames DO get written out and but I haven't figured out 
under
what conditions yet.
Is there a function lying around that prints the contents of the 
frames as
they exist in memory? It would be helpful to me to see a before and 
after
snapshot of my frames.
Thanks,

Mark Malson
mark@mmalson.com

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