Bug#822973: idjc displays "something bad happened" and doesn't start (undefined symbol: avcodec_alloc_frame)

[Sebastian Ramacher]

Control: tags -1 + confirmed upstream
Control: severity -1 + grave

On 2016-04-29 15:51:52, Frederic Peters wrote:
> Package: idjc
> Version: 0.8.15-1+b1
> Severity: important
> 
> Hi,
> 
>  $ idjc
> jack client ID: idjc_default
> something bad happened
> 
> I altered part of main.py to get a proper trace and got this:
> 
> Traceback (most recent call last):
>   File "/usr/bin/idjc", line 32, in <module>
>     exit(idjc.main())
>   File "/usr/lib/idjc/site-packages/idjc/__init__.py", line 119, in main
>     return maingui.main()
>   File "/usr/lib/idjc/site-packages/idjc/maingui.py", line 3995, in main
>     run_instance = MainWindow()
>   File "/usr/lib/idjc/site-packages/idjc/maingui.py", line 3047, in __init__
>     self.backend = ctypes.CDLL(FGlobs.backend)
>   File "/usr/lib/python2.7/ctypes/__init__.py", line 365, in __init__
>     self._handle = _dlopen(self._name, mode)
> OSError: /usr/lib/idjc/idjc.so: undefined symbol: avcodec_alloc_frame
> 
> The symbol was apparently marked avcodec_alloc_frame, I guess if finally
> got removed in a recent ffmpeg upload.

From the build log:

avcodec_encoder.c: In function 'live_avcodec_encoder_main':
avcodec_encoder.c:145:42: warning: implicit declaration of function 'avcodec_alloc_frame' [-Wimplicit-function-declaration]

And later:

dpkg-shlibdeps: warning: debian/idjc/usr/lib/idjc/idjc.so contains an unresolvable reference to symbol avcodec_alloc_frame: it's probably a plugin

Well, it's not. Raising the severity accordingly.

Regards
-- 
Sebastian Ramacher
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