[mythtv-commits] Ticket #9916: Mythtv segfaults on ppc when the internal ffmpeg is compiled with -fPIC (default)
MythTV
noreply at mythtv.org
Tue Jul 12 06:56:36 UTC 2011
#9916: Mythtv segfaults on ppc when the internal ffmpeg is compiled with -fPIC
(default)
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Reporter: kim@… | Type: Bug Report - Crash
Status: new | Priority: minor
Milestone: unknown | Component: MythTV - General
Version: Unspecified | Severity: medium
Keywords: ppc | Ticket locked: 0
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mythfrontend will segfault when reading various streams (AAC, AC3 etc...)
on linux/powerpc if compiled with a 'recent' version of gcc (>= 3.6).
The reason is that the way global symbols are loaded in
ffmpeg/libavcodec/ppc/fft_altivec_s.S and asm.S is not PIC compatible.
This affects all versions of mythtv on linux/ppc32 (tested with 0.23,
0.24, 0.24.1 and git head).
The following simple patch was applied to ffmpeg upstream and fixes the
problem, please cherry pick it:
http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2d16394f972dca8cc5e5b5bf9ab0b343a6239b76
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Ticket URL: <http://code.mythtv.org/trac/ticket/9916>
MythTV <http://code.mythtv.org/trac>
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