[gutsy SRU] gtkpod-aac does not live up to its name

Same exact problem here on latest Gutsy i386. When I try to build it (from the source at gtkpod.org) it cannot find libmp4v2 despite the fact I have both libmp4v2-0 and libmp4v2-dev installed. Maybe this is a problem with libmp4v2-dev?

The problem is while configuring the package from source. Since a commit in gtkpod dated about June 7th, 2007, the configure script searches for the symbol MP4GetMetadataGrouping into libmp4v2.
However, for some reason, this symbol isn't present / exported. So I expect the problem is either:
a) with libmp3v2, which isn't exporting a symbol it should
b) with gtkpod, which tries to use an undocumented/obsolete API removed in the gutsy release of libmp3v2
c) wrong versions of required dependencies of gtkpod-aac

Unfortunately, I don't have a lot of time to investigate on this. Can someone take this bug?

A quick grep indicates that the string "MP4GetMetadataGrouping" does not occur anywhere in the libmp4v2 (actually libfaad) source code as fetched by "apt-get source libmp4v2-0".

Also, MP4GetMetadataGrouping only occurs in one place in gtkpod-aac.

Here's another fun tidbit: we're at faad2 version 2.0.0 (the full version string is 2.0.0+cvs20040908+mp4v2+bmp-0ubuntu5), while 2.5 was released over a year ago. However, the real problem seems to be that libmp4v2, which Ubuntu/Debian rolled into libfaad2 for some strange reason, is at version 0.9.8.6, but mpeg4ip, which appears to be the origin of libmp4v2, has released version 1.5.0.1, which has MP4GetMetaDatagrouping. Here's a crazy idea: why don't we package libmp4v2 separately and get it and libfaad2 up to date while we're at it?

Well, it's clearly too late in Gutsy's release cycle to import new libmp4v2, so unfortunately looks like we won't be able to ship a functioning gtkpod-aac.

Can we rip it out of the archive so we don't go confusing users about it?

I was able to successfully compile gtkpod from SVN on Fesity and Gusty by installing libmp4v2-dev from the Debian repositories, which depended on libmp4v2, libmpeg4ip, and libmpeg4ip-dev.

Hi everyone,

I've been working on this bug and unless someone has an objection I'd like to fix this for Gutsy and Hardy. Long story short, GTKPod now tries to get and set grouping information from MP4 metadata and that requires a newer libmp4v2 than we have. Since upgrading mp4v2 seems to be a bigger job than it would seem, I have chosen to just roll back the grouping checking for mp4's altogether. I am currently still build testing these packages and will keep everyone up to date on the situation. My plan is to first upload the fix to Hardy, then carry through to SRU this change to Gutsy.

Debdiff for hardy -- builds/works inside a pbuilder.

Here's the debdiff for gutsy-proposed.

Will provide pbuilder testing debs soon.

Here is a deb built using prevu (pbuilder + version bump down to backports level) of the gutsy-proposed debdiff.

This works for me for adding an AAC music file and a MP4 video file onto my 5G iPod. Please help test to make the SRU process go faster.

I successfully transfered a .m4a AAC file to my ipod using this version.

Uploaded. Thanks. Would you mind adjusting the gutsy-proposed patch to include a (preferably more verbose) description of the patch?

gtkpod-aac (0.99.10-2ubuntu2) hardy; urgency=low

  [ John Dong ]
  * disable-mp4-grouping.dpatch: Disable MP4 grouping retrieval
    as our libmp4v2 doesn't support it (LP: #135178)

  [ Emmet Hikory ]
  * Add the description for the dpatch

 -- Emmet Hikory <email address hidden> Tue, 06 Nov 2007 00:17:25 +0900

Although this solution is good for Gutsy, I think that for Hardy it'd be better to update the libfaad2 and libmp4v2 packages. Else, we could be experiencing further drift and patches needed for those programs using newer features of these two libs. Also, some developers use the -dev pkgs for their work, so even if we can do without upgrading, some users would like to anyway.

Anyway, *this* bug is fixed. Probably it'd make sense to open a _new_ bug about updating libfaad2 and libmp4v2 to latest version in Hardy.

Agreed, that is still on my list of intentions. It will require much
more coordination with MOTU-media than this simple noninvasive patch but
let's get it done for Hardy.

Just another confirmation that John's debdiff worked for me on Gutsy as well.

I have verified the Hardy package to correctly parse MP4 headers and can recommend the Gutsy debdiff for -proposed.

u-u-s: Please *DO NOT* upload said debdiff to gutsy-proposed -- I am rolling this together with bug #145506 into a single SRU (crimsun said it was okay)

Subscribers: Please see bug #163283 to contribute/follow the progress towards gutsy-updates.

I've unsubscribed ubuntu-universe-sponsors based on the last comment.

Handled in other aforementioned bug #

As a note to Matteo and others, I am currently working on bringing mpeg4ip into Hardy and reenabling full AAC tagging support :) Cheers!

Just another confirmation, the package for gutsy (gtkpod-aac_0.99.10-2ubuntu1.1%7E7.10prevu1_i386.deb) works also for me, thx alot.

Attention all Gutsy users:

I could really use your help at https://bugs.launchpad.net/ubuntu/+source/gtkpod-aac/+bug/163283

This package is in gutsy-proposed and must be tested and confirmed by two people (don't have to be developers, anyone's fine) in order to be accepted to gutsy-updates. One of the bugs it fixes is this one. Please help me in testing it, that's the only thing preventing everyone from receiving this update!

Tested and confirmed that the version in gutsy-proposed works and transfers m4a files