Bug#765341: more information

[Klaumi Klingsporn]

Hi Martin!

Am / On Thu, 16 Oct 2014 20:19:19 +0200
schrieb / wrote Martin Steghöfer <martin at steghoefer.eu>:

> I have to admit that I'm a bit lost in your tale. Am I right that
> what you are reporting are the following 3 issues?

O.k.! Less tales, more facts ;-)

> 1. "assert !ms_clipboard failed in wxClipboardSync" in various
> occasions: a) When opening a certain project (all project in which
> you had applied LV2 plugins before?)
> b) When playing the current selection

I tried to reproduce the bug and can be more precise now. It has
nothing to do with applying lv2-effects. To reproduce open audacity,
import some wav-file with some 0db-pauses in it, apply
Analyze/Soundfinder to the track, you get an extra text-track with
markers for the places in timeline, where there is sound on the first
track. Save the project. Now, whenever you want to play audio in the
project, audacity freezes, and after killing audacity you get the
error-message the first time you try to reopen the project. After
this first try audacity hangs while trying to reopen the project
every time without error-message.

As said, my against wxWidgets2.8 compiled version of audacity has no
problem with this issue.

You find a sample-project at:
https://www.dropbox.com/s/79d6p6sri6shlj5/sample-project.tgz?dl=0

You should not be able to reopen the project with the packaged version
of audacity. But you can reopen ist after editing the aup-project-file
in a text-editor removing the whole labeltrack name="Textspur".

> 2. Small buttons in the project recovery dialog

I'll support you in the wxWidget upstream bug-tracker

> 3. Segmentation fault on applying LV2 plugins
> Regarding 3: I was able to reproduce that crash in Debian unstable. 
> However, I could not reproduce it in Ubuntu (using the exact same 
> audacity package with wxWidgets 3.0), which I found weird. Maybe
> there is something more to it than Audacity's problems. I'm looking
> into that.

Here I seem to have no problems with lv2-plugins with my
local-wxWidgets-2.8-version. With the packaged version audacity
crashes.

Only an idea of an user-only: Maybe it has something to do with my
extra set configure-flag "--with-lv2=system". When I compare the
output of 

objdump -p /path/to/audacity | grep NEEDED

on my local audacity-binary with the output on the packaged one, my
local binary has quite more needs, esp. on liblilv-0-0 and
libsratom-0-0. So I think the packaged audacity is compiled at
least partly against the audacity-upstream versions of lv2, sratom,
serd and sord which are older than the ones in
Debian-testing/unstable. But as said, it's only an idea ;-)

Klaumi

--- 
Klaus-Michael Klingsporn            
mail: klaumikli at gmx.de
web: www.klaumikli.de