serpentine couldnt start to burn

[Keywan Tonekaboni]

i try to burn with serpentine, but got this exception:

prometoys@book:~$ LC_ALL=C serpentine
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 71, in
start
    self.__oper = self.__pool.fetch_music (self.__music)
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 194, in
fetch_music
    oper = audio.sourceToWav (source, sink)
  File "/usr/lib/python2.4/site-packages/serpentine/audio.py", line 339, in
sourceToWav
    bin = gst.parse_launch (
GError: could not link audioscale0 to wavenc0

everything works fine, except the burning. serpentine didnt crash or so, it just
reports

"Converting files failed: Writing to disc didn't start so it is still usable."

i tried to burn oggs and mp3 files.

when i try to burn a wave file another error is shown in the terminal, but
serpentine GUI looks like trying to burn, but nothing happens, the progressbar
dont "move".

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/serpentine/operations.py", line 228, in
__start_next
    oper.start()
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 67, in
start
    self._send_finished_event (success = operations.SUCCESSFUL)
TypeError: _send_finished_event() got an unexpected keyword argument 'success'

[Keywan Tonekaboni (prometoys)]

i try to burn an audio-cd with gnomebaker:

 ** (gnomebaker:8751): CRITICAL **: gst_audioscale_link: assertion `caps' failed

maybe gstreamer-misc is responsible for this bug

[Matt Zimmerman (mdz)]

*** Bug 22973 has been marked as a duplicate of this bug. ***

[Tiago Cogumbreiro (cogumbreiro)]

I'm sorry for not saying something before, but I've been really busy with
school+work.

I can't tell you at a first time if it's GStreamer's fault, but it seems not.

[Keywan Tonekaboni (prometoys)]

thanx tiago and i didnt want to rush anybody. it's great work you and all other
volunteers do for ubuntu besides your regular work and life.

how can i help to fix this bug? i am not a programmer, but ready to give you
feedback to fix it. did i told, that i am using an powerpc (ibook g4)?

did audio-cd burning for anybody else? should i run/build serpentine with
special debug options?

regards,

keywan

[Tiago Cogumbreiro (cogumbreiro)]

(In reply to comment #4)
> thanx tiago and i didnt want to rush anybody. it's great work you and all other
> volunteers do for ubuntu besides your regular work and life.
Thanks, however don't take that reply as a "please-don't-push-me" plead, more of a
I-should've-told-i'm-aware-of-it ;)

> how can i help to fix this bug? i am not a programmer, but ready to give you
> feedback to fix it. did i told, that i am using an powerpc (ibook g4)?
>
> did audio-cd burning for anybody else?
It did for me, otherwise I wouldn't release it;)

That's why you need to be a programmer to fix it. You need to know how gstreamer
works to work around it. It's a strange error, it may be related on your
architecture (ppc).

> should i run/build serpentine with
> special debug options?
There are none, sorry.

Thank you for your help anyways. I'll try to look at this bug tomorrow, since
it's a local holliday.

[Martin K. Petersen (mkp)]

Just a heads up that this bug occurs on both i386 and PowerPC.

[Tiago Cogumbreiro (cogumbreiro)]

*** Bug 24574 has been marked as a duplicate of this bug. ***

[Tiago Cogumbreiro (cogumbreiro)]

*** Bug 24745 has been marked as a duplicate of this bug. ***

[Tiago Cogumbreiro (cogumbreiro)]

I fixed the second part of the bug report on Serpentine 0.6.4. The first one
isn't fixed though.

[Tiago Cogumbreiro (cogumbreiro)]

*** Bug 27228 has been marked as a duplicate of this bug. ***

[Phil Bull (philbull)]

Any news on the first part of the bug report Tiago? I was talking to a user on IRC with up-to-date Breezy (ppc) packages who could reproduce this (Serpentine 0.6.3), but I couldn't (another up-to-date Breezy, on i686).

[Alberto (alberto-viniegra)]

alberto@ubuntu:~$ uname -a
Linux ubuntu 2.6.12-10-powerpc #1 Mon Jan 16 17:38:57 UTC 2006 ppc GNU/Linux

machine : PowerBook4,3
iBook G3 900

I run Ubuntu breezy, all up to date, and I can't burn audio-cds with serpentine neither gnomebaker, I have debian sid installed too, and there I can't burn with gnomebaker, I obtain an error from gstreamer in the gnomebaker output.
Here in Ubuntu I have no output in gnomebaker but a message in console:

alberto@ubuntu:~$ gnomebaker

** (gnomebaker:27251): CRITICAL **: gst_audioscale_link: assertion `caps' failed

in serpentine (seems to be same as first pasted):
alberto@ubuntu:~$ serpentine
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 71, in start
    self.__oper = self.__pool.fetch_music (self.__music)
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 194, in fetch_music
    oper = audio.sourceToWav (source, sink)
  File "/usr/lib/python2.4/site-packages/serpentine/audio.py", line 339, in sourceToWav
    bin = gst.parse_launch (
GError: could not link audioscale0 to wavenc0

I am not sure, I am quite newbie in this, but I think it seems to be a problem relationed with gstreamer, not with gnomebaker or serpentine, but can't use apps using that libraries untill the bug is fixed.

Thanks phill bull ;-)

[Tiago Cogumbreiro (cogumbreiro)]

Can you install serpentine 0.6.4 and see if it still happens?

[Keywan Tonekaboni (prometoys)]

Unfortunetly i couldn't install serpentine in this version. I still have installed Breezy and need it for productive work. There are too much dependencies to install serpentine in this version. But thanks for your efforts. If I finisched my tests at the end of februar, I will reorganize my harddisk, to have space for an experimental ubuntu installation

[Tiago Cogumbreiro (cogumbreiro)]

If you have breezy then you just need to uninstall serpentine download the serpentine tarball from berlios and then:

./configure --prefix=/usr
make
make install

That's it, there are no *extra* steps then this, no dependencies that are not already met.

After the test that I asked you, you can unisntall it by running:

make uninstall

And then 'apt-get install serpentine' to roll back your system to 'normal'.

[Keywan Tonekaboni (prometoys)]

hi,

I installed serpentine 0.6.4 from breezy-backports and I have still the same problem.

prometoys@book:~$ LC_ALL=C serpentine
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 71, instart
    self.__oper = self.__pool.fetch_music (self.__music)
  File "/usr/lib/python2.4/site-packages/serpentine/converting.py", line 191, in fetch_music
    oper = audio.sourceToWav (source, sink)
  File "/usr/lib/python2.4/site-packages/serpentine/audio.py", line 334, in sourceToWav
    bin = gst.parse_launch (
GError: could not link audioscale0 to wavenc0

I have the problem also with a downloaded from berlios version, which I installed in /usr/local/

prometoys@book:~/Desktop/serpentine-0.6.4$ LC_ALL=C serpentine
Traceback (most recent call last):
  File "/usr/local//lib/python2.4/site-packages/serpentine/converting.py", line 71, in start
    self.__oper = self.__pool.fetch_music (self.__music)
  File "/usr/local//lib/python2.4/site-packages/serpentine/converting.py", line 191, in fetch_music
    oper = audio.sourceToWav (source, sink)
  File "/usr/local//lib/python2.4/site-packages/serpentine/audio.py", line 334, in sourceToWav
    bin = gst.parse_launch (
GError: could not link audioscale0 to wavenc0

Maybe an unmet dependency is the problem..

[Tiago Cogumbreiro (cogumbreiro)]

I need to show this trace at #gstream, they might be able to help me out on this. I'm really clueless. Sorry :(

[Tiago Cogumbreiro (cogumbreiro)]

There was not solution to this, and seems clear that it's not a Serpentine bug. May I close this with NOTABUG?

[Keywan Tonekaboni (prometoys)]

I think this behavior is definitely

[Keywan Tonekaboni (prometoys)]

Sorry, I didn't finished my posting and sent it accidently.

I think this behavior is definitely a bug. I couldn't burn cd's with serpentine ;)

How we could find out, who is responsible for this behavior. What do the gstreamer-people say?

Regards,

Keywan

[Tiago Cogumbreiro (cogumbreiro)]

The ones I've talked say it's very strange and that it shouldn't be happening. I will try to reach them one more time.

[Keywan Tonekaboni (prometoys)]

I add a bug to gstreamer0.8. I am not sure, if this is the correct place.

https://launchpad.net/distros/ubuntu/+source/gstreamer0.8/+bug/33651

[Keywan Tonekaboni (prometoys)]

This bug is stil in dapper with gstreamer 0.10. I could reproduce it on another iBook with breezy.

[Matthias Jordan (matthiasjordan)]

The conversion happens in audio.py. There, a string object is linked to the name WavPcmParse and holds the string "audio/x-raw-int, endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true, rate=(int)44100, channels=(int)2".

Based on this string, later on a GStreamer Pipe is constructed. When I use serpentine to create the Pipe it prints "could not link audioscale0 to wavenc0" in the console. Alas, when I build the same Pipe in the shell, using the following line ...

gst-launch filesrc location=music.mp3 ! decodebin ! audioscale ! audio/x-raw-int, endianness=(int)1234, depth=(int)16, signed=(boolean)true, rate=(int)44100, channels=(int)2 ! wavenc

... I get the following output:

gstpad.c(2562): gst_pad_set_explicit_caps: /pipeline0/decodebin0/mad0:
failed to negotiate (try_set_caps with "audio/x-raw-int, endianness=(int)4321, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2" returned REFUSED)
ERROR: from element /pipeline0/decodebin0/mad0: Internal GStreamer error: negotiation problem. File a bug.
Additional debug info:
gstmad.c(1206): gst_mad_check_caps_reset: /pipeline0/decodebin0/mad0:
Failed to negotiate 44100 Hz, 2 channels

The Pipe works if you set the endianness to 1234 and use osssink instead of wavenc but wavenc itself doesn't work with 4321 either.

Hope it helps.

[Tiago Cogumbreiro (cogumbreiro)]

Awesome! Thanks alot for tracking this one. Now we need to fill it against gstreamer instead of Serpentine.

[Keywan Tonekaboni (prometoys)]

This happens already: https://launchpad.net/distros/ubuntu/+source/gstreamer0.10/+bug/35685

[Tiago Cogumbreiro (cogumbreiro)]

Since this is apparently related to mad i'm going to change it to the ugly gstreamer plugins.

[Sebastien Bacher (seb128)]

Is "gst-launch filesrc location=music.mp3 ! decodebin ! audioscale ! audio/x-raw-int, endianness=(int)1234, depth=(int)16, signed=(boolean)true, rate=(int)44100, channels=(int)2 ! wavenc" running with gst0.8 or gst0.10?

[Keywan Tonekaboni (prometoys)]

I guess Matthias used gstreamer0.8, because he use Breezy. I can ask him to help me to debug serpentine on Dapper tommorrow.

For the moment just the output of the pipe on my computer:

prometoys@cassini:~$ gst-launch filesrc location=music.mp3 "! decodebin ! audioscale ! audio/x-raw-int, endianness=(int)1234, depth=(int)16, signed=(boolean)true, rate=(int)44100, channels=(int)2 ! wavenc"
???: \

** (gst-launch-0.10:17500): WARNING **: error: syntax error, unexpected $undefined
???: \
???: \
???: \
???: \
WARNING: erroneous pipeline: no element "audioscale"

[Michael Vogt (mvo)]

Not sure that this is helpful, but I get this error too (amd64) and it is pretty anoying not to be able to burn audio cds. Anything I can do to help debugging it?

[Alexandre Otto Strube (surak)]

Keywan, this bug is posted against gnomebaker. I read bug #30684 and bug #35685 , and i think that both this one and bug #30864 can be marked as duplicate from bug #35685 , which is correctly posted agains gstreamer (which seems to be the culprit anyway ;-)

What do you think?

[Keywan Tonekaboni (prometoys)]

I would agree, but I have not a full overview about the malone philosophy.

First I was not sure which package is responsible and then I didn't know, that you can add more than one product/package to one bug.

At the moment gstreamer0.10-plugins-ugly is added as affected and bug #30864 is already marked as duplicate of #35685.

However, I hope somebody fix this showstopper in dapper LTS ;)

[Carthik Sharma (carthik)]

Changing Status to Confirmed since there are multiple duplicates of the same bug.

[Alexandre Otto Strube (surak)]

Carthik, please take a look at what I wrote and what the original poster said.

[Keywan Tonekaboni (prometoys)]

Hi,

is any progress on this issue? Does somebody work on it?

Regards,

Keywan

[Sebastien Bacher (seb128)]

Apparently it's not really worked but it would be nice if somebody having the issue would bring that upstream, they know the code better and we have many distro bugs at the moment so it's not easy to reply on everything, especially for issue that don't happen for everybody like that one

[Nick Booker (nmbooker)]

I think I've found a fix, but I haven't got time to further test the solution because of exams and revision.

THE FIX

I've managed to get discs burning by changing the gstreamer pipeline in the source_to_wav function in audio.py (directory /usr/lib/python2.4/site-packages/serpentine/) - it appears to have frozen to start with but it's just taking a while to start filling the progress bar (Althon XP 2400+, 512MB RAM).

This diff works on version 0.6.91-0ubuntu3:
495c495
< "audioconvert ! "
---
> "audioconvert ! audioresample !"

On above mentioned version of the package, this change was made at line 495.

I've only tested this fix on one set of MP3 and OGG files with one 80 minute CDR.

PROBLEMS TO BE RESOLVED (unrelated bugs? problems with my solution?)

After burning, Serpentine claims in an error dialog that
    "Writing to disc failed. The CD has already been recorded."
However the disc was blank, it burned successfuly and it plays perfectly.

Large temporary .wav files are left behind in my home directory with names like tmp2iy1Ye.wav after burning, but automatically removed when Serpentine is quit. Are they kept for any reason, or can this be classed as a bug?

[Nick Booker (nmbooker)]

Sorry didn't say, above fix was for
"Converting files failed: Writing to disc didn't start so it is still usable."
not for the exception - I've not had that problem afaik.

Sorry also the temp files thing is a duplicate of #43758.

Apologies

[Tiago Cogumbreiro (cogumbreiro)]

On 6/2/06, NickBooker <email address hidden> wrote:
> I think I've found a fix, but I haven't got time to further test the
> solution because of exams and revision.
>
> THE FIX
>
> I've managed to get discs burning by changing the gstreamer pipeline in
> the source_to_wav function in audio.py (directory /usr/lib/python2.4
> /site-packages/serpentine/) - it appears to have frozen to start with
> but it's just taking a while to start filling the progress bar (Althon
> XP 2400+, 512MB RAM).
>
> This diff works on version 0.6.91-0ubuntu3:
> 495c495
> < "audioconvert ! "
> ---
> > "audioconvert ! audioresample !"
>
> On above mentioned version of the package, this change was made at line
> 495.
Thanks alot! :)

/me gives you a blue ribbon for hunting this down!

> I've only tested this fix on one set of MP3 and OGG files with one 80
> minute CDR.
>
> PROBLEMS TO BE RESOLVED (unrelated bugs? problems with my solution?)
>
> After burning, Serpentine claims in an error dialog that
> "Writing to disc failed. The CD has already been recorded."
> However the disc was blank, it burned successfuly and it plays perfectly.
That is rather strange, specially because the problem you've solved is
in the converting part, which if thrown an exception would stop the
recording and thus the disc would be blank. Can we arrange a meeting
on IRC so that we can try to debug this? I am not able to reproduce
this bug so I can't really do it by myself. My nickname is
'cogumbreiro' and i'm on irc.freenode.net (on #pida) and on
irc.gnome.org (on #pygtk).

I also have a jabber account: <email address hidden>

>
> Large temporary .wav files are left behind in my home directory with
> names like tmp2iy1Ye.wav after burning, but automatically removed when
> Serpentine is quit. Are they kept for any reason, or can this be
> classed as a bug?
That's the expected behaviour. That happens so you don't have to
convert the same file twice (imagine writing multiple copies of the
same album).

> --
> serpentine couldnt start to burn
> https://launchpad.net/bugs/22501
>

--
Tiago Cogumbreiro <email address hidden>

http://s1x.homelinux.net/

[Tiago Cogumbreiro (cogumbreiro)]

> This diff works on version 0.6.91-0ubuntu3:
> 495c495
> < "audioconvert ! "
> ---
> > "audioconvert ! audioresample !"

Does this work with "audioconvert ! audioscale !" ?
I just noticed that that part used to be there and now it's not.

> Large temporary .wav files are left behind in my home directory with
> names like tmp2iy1Ye.wav after burning, but automatically removed
> when Serpentine is quit. Are they kept for any reason, or can this be
> classed as a bug?
No that's the cache working. You don't want to convert the same file twice.

> However the disc was blank, it burned successfuly and it plays
> perfectly.
The disc was blank or was it burned successfuly?

Did an error appeared afterward or did it not? I'm a little confused with the last part :)

[Nick Booker (nmbooker)]

Tiago,

> No that's the cache working. You don't want to convert the same file twice.
Good point. When I found the duplicate, I realised it was an issue with where the tmp files were created, not the fact that they're kept until close.

> The disc was blank or was it burned successfuly?
The order of events was as follows:

1. Inserted a blank CD, clicked Write To Disc (having built the playlist) and confirmed
2. Audio converted
3. The converted audio was burned to the empty CD-R
4. CD was ejected
5. Error message I mentioned originally was shown.
6. Tested CD in my hi-fi and it played perfectly, so as far as I know the burn process was in fact successful despite the error message.

Sorry for confusion.
Should I submit a new bug?

> Does this work with "audioconvert ! audioscale !" ?
No, just tried and got the original "Converting files failed"... error again.

> Can we arrange a meeting on IRC so that we can try to debug this?
Can't tonight (I'm in UK it's late). What times are you online?

[Tiago Cogumbreiro (cogumbreiro)]

On 6/3/06, NickBooker <email address hidden> wrote:
> 1. Inserted a blank CD, clicked Write To Disc (having built the playlist) and confirmed
> 2. Audio converted
> 3. The converted audio was burned to the empty CD-R
> 4. CD was ejected
> 5. Error message I mentioned originally was shown.
> 6. Tested CD in my hi-fi and it played perfectly, so as far as I know the burn process was in fact successful despite the error message.
Then there's some small bug lurking around. That must mean that the
"audioconvert ! audioresample" trick did it. Didn't it?

> Sorry for confusion.
> Should I submit a new bug?
Not needed.

>
> > Does this work with "audioconvert ! audioscale !" ?
> No, just tried and got the original "Converting files failed"... error again.
After talking with the folks of #gstreamer apparently !audioresample
(not using !audioscale) would suffice.

I've made a chunk of commits to the SVN if you could grab latest trunk
would be awesome. Yet the problem is still not fixed and we need to
work it out a bit better.

>
> > Can we arrange a meeting on IRC so that we can try to debug this?
> Can't tonight (I'm in UK it's late). What times are you online?
I live on Azores so it's -00:01:00:00 (from you to me). I'll be on IRC
tomorrow afternoon.

[Nick Booker (nmbooker)]

> I've made a chunk of commits to the SVN if you could grab latest trunk
> would be awesome.

Apologies for ignorance, but can you give me the URL to check out?

[Nick Booker (nmbooker)]

Found URL. I checked it out of SVN, built, installed and tested it both on my laptop and my desktop with different results.

The CD produced is perfect on both machines, and only on my desktop do I have the issue of the error message appearing after the burn has completed. I hadn't tested on laptop before.

Could it be an issue with my model of CD burner on the desktop? Both drives are DVD+RW. I don't have issues burning iso images or data.

Output from commandline on desktop when a blank is not found:
  Could not fully determine drive profile 0: Error reading disc information

There's no output of this kind when used on the laptop.

Drive details:
  Desktop: info.product = "BENQ DVD DD DW1620"
  Laptop: info.product = "SD-R6252"

Should I raise this issue elsewhere?

[Tiago Cogumbreiro (cogumbreiro)]

So the point of the situation is the following. The converting issue is fixed but we still have a bug when the writing operation finishes. It raises an error and says the disc is unusable because writing has already started, right?

I will try to improve the output on the terminal and commit that to SVN so that you can run it from the command line and check the output there.

There's no need to raise the issue elsewhere, at least not until we figure out exactly what is failling. Thanks alot for your cooperation!

[Keywan Tonekaboni (prometoys)]

Unfortunetaly it isn't fixed. I also didn't get debug output anymore (also not with -d). Also the error is in german, even though I run

LC_ALL=C serpentine -d

"Dateikonvertierung fehlgeschlagen

Der Schreibvorgang wurde nicht gestartet, die CD ist noch benutzbar"

Yes, I changed audio.py and I run dapper.

[Tiago Cogumbreiro (cogumbreiro)]

Which debug output?

For some of the translated strings (usually glade ones) you need to set LANG=C too.

Please try the SVN version, alot of small fixes were commited there.

Simple tutorial to get latest version:

sudo apt-get remove serpentine
sudo apt-get install subversion
svn checkout svn://svn.berlios.de/serpentine/trunk/serpentine
cd serpentine
sudo python setup.py install

[Keywan Tonekaboni (prometoys)]

I checkout from svn
I couldn't find any setup.py file in the serpentine folder
I run

./autogen.sh
 ./configure --prefix=/usr/local
make
sudo make install

I removed serpentine before, even I was not happy to must remove ubuntu-desktop. I prefer to install test software in /usr/local

It doesn't help. I have still the same error

export LC_ALL=C and
export LANG=C

didn't helped, but

export LANGUAGE=C

I didn't recognize this before, even not with glade (e.g. Gossip). I am not sure if this is a bug...

[Tiago Cogumbreiro (cogumbreiro)]

On 6/3/06, Keywan Najafi Tonekaboni <email address hidden> wrote:
> I checkout from svn
> I couldn't find any setup.py file in the serpentine folder
> I run
>
> ./autogen.sh
> ./configure --prefix=/usr/local
> make
> sudo make install
Sorry, got confused with another python project. Infact serpentine
uses autotools, thus the need to use ./autogen.sh

> I removed serpentine before, even I was not happy to must remove ubuntu-
> desktop. I prefer to install test software in /usr/local
>
> It doesn't help. I have still the same error
I'm sorry but you really need to remove serpentine first. The script
tries to work standalone but it might fail, since the package is
installed system wide. the ubuntu-desktop is just a meta-package, so
you just install it afterwards.

> I didn't recognize this before, even not with glade (e.g. Gossip). I am
> not sure if this is a bug...
No it's not.

Thanks anyways!

[Keywan Tonekaboni (prometoys)]

I removed serpentine and ubuntu-desktop before installing serpentine from svn, like as you told me.
But it still didn't work.

I just install it to /usr/local, but no other serpentine was installed.

Do you visit GUADEC? I will be there and you or somebody else who like could test it directly on my computer.

[Tiago Cogumbreiro (cogumbreiro)]

On 6/3/06, Keywan Najafi Tonekaboni <email address hidden> wrote:
> I removed serpentine and ubuntu-desktop before installing serpentine from svn, like as you told me.
> But it still didn't work.
>
> I just install it to /usr/local, but no other serpentine was installed.
But the error there is failling to convert, right?

> Do you visit GUADEC? I will be there and you or somebody else who like
> could test it directly on my computer.
Unfornutely not :( Would love to though.

[Keywan Tonekaboni (prometoys)]

> But the error there is failling to convert, right?

Yes.

"Converting files failed

Writing to disc didn't start so it is still usable."

[Tiago Cogumbreiro (cogumbreiro)]

Can you pop on irc.freenode.net and we can talk there? I'll be on channel #pida.

I think this problem could be solved easier that way. Thanks alot in
advance for all your cooperation thus far.

On 6/4/06, Keywan Najafi Tonekaboni <email address hidden> wrote:
> > But the error there is failling to convert, right?
>
> Yes.
>
> "Converting files failed
>
> Writing to disc didn't start so it is still usable."
>

[Tiago Cogumbreiro (cogumbreiro)]

After talking with Keywan I've *finally* commited a bug fix already accessible in the latest development version (trunk).

I'll push for a realease really soon.

[Tiago Cogumbreiro (cogumbreiro)]

It's not a gstreamer bug. Since it was fixed inside Serpentine.

[Tiago Cogumbreiro (cogumbreiro)]

I'm sorry I thought I was removing the package, but I can't do it so i'm reverting to the old product.

[Sebastien Bacher (seb128)]

rejecting the gstreamer task if that's a serpentine issue

[Sebastien Bacher (seb128)]

marking as fix commited since it's fixed upstream

[Tiago Cogumbreiro (cogumbreiro)]

Meanwhile I've found a regression caused by the fix. Now it corrects it and solves the issues with files with 1 audio channel (mono). It's already available on SVN. Release will follow really soon.

[Sebastien Bacher (seb128)]

the new version is available in 7.04

[darthanubis (darthanubis)]

Gutsy, 64bit. Fails to brun anything. Running from CLI outs no errors.

[Sam Liddicott (sam-liddicott)]

3 years later I'm having this problem on intrepid.
Theo notes here: http://ubuntuforums.org/archive/index.php/t-987654.html
seem to apply.

I used:
$ sox in.wav out.wav

to "fix" the wav so that serpentine could burn my CD.