Bug#639948: libavcodec.so.53: ffplay produces a coredump on arch ppc

[Elimar Riesebieter]

* Reinhard Tartler [110901 10:36 +0200]:

> severity 639948 normal
> tags 639948 upstream
> stop
> 
[...]
> That gives some more insight. It avcodec tries to decode some AAC audio,
> and causes some altivec optimized functions to segfault in
> ff_fft_calc_altivec. Can you elaborate what kind of powerpc you have? 


processor	: 0
cpu		: 7447A, altivec supported
clock		: 833.333000MHz
revision	: 1.5 (pvr 8003 0105)
bogomips	: 16.33
timebase	: 8320000
platform	: PowerMac
model		: PowerBook5,8
machine		: PowerBook5,8
motherboard	: PowerBook5,8 MacRISC3 Power Macintosh 
detected as	: 287 (PowerBook G4 15")
pmac flags	: 00000018
L2 cache	: 512K unified
pmac-generation	: NewWorld
Memory		: 1536 MB

[...] 
> In any case, we need as sample to reproduce this ourselves. Since the
> filename '03-G3_Live_in_Denver-Joe_Satriani-Starry_Night.aac' indicates
> that the file might be rather longish, maybe you could share a part from
> that still exposes the bug? Try:
> 
>  dd if=sample-file of=small-sample-file bs=1024 count=10000

There are more samples like m4a and mpc files. Please find attached
the aac you mentioned.

> As this is definitly an upstream bug, please report this issue at the
> upstream bugzilla:
> 
>  http://bugzilla.libav.org/enter_bug.cgi
> 
> and provide all information in this bug and potentially more as
> requested.
I'll do so.

Elimar

-- 
  It's a good thing we don't get all 
  the government we pay for.
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