[mythtv-users] Need help running MythTV on ARM NAS (LIBAVCODEC_52 error)

[jacek burghardt]

Can you upgrade to 27.x ? What hardware are you running xbmc on ? I belive
xbmc pvr plugins supports mythtv 27.

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On Wed, Nov 19, 2014 at 8:42 PM, Matthew Parris <parrisimo at gmail.com> wrote:

> I need some assistance getting 0.25.4 to run on a QNAP NAS ARM processor.
> Mythtv backend runs and records just fine, but when I try to watch a
> recording using the XBMC PVR cmythtv addon, I get this error right before
> the backend crashes:
> 2014-11-09 12:57:04.404395 C  MainServer::HandleVersion - Client speaks
> protocol version 8 but we speak 72!
> 2014-11-09 12:57:04.404629 W  MainServer: Unknown socket closing
> MythSocket(0x339d90)
> 2014-11-09 12:57:04.406889 I  MainServer::ANN Playback
> 2014-11-09 12:57:04.406935 I  adding: Katies-iMac.home as a client
> (events: 0)
> 2014-11-09 12:57:04.408524 I  MainServer::HandleAnnounce FileTransfer
> 2014-11-09 12:57:04.408561 I  adding: Katies-iMac.home as a remote file
> transfer
> ./mythbackend: relocation error:
> /opt/MythTV-0.25.4/lib/libmythtv-0.25.so.0: symbol __aeabi_d2ulz, version
> LIBAVFORMAT_52 not defined in file libmythavformat.so.52 with link time
> reference
>
>
> I did some googling, and some others have a similar problem with mplayer.
> It's as if mythbackend is trying to access version "LIBAVFORMAT_52" of the
> __aeabi_d2ulz symbol. I'm not sure what this means. I ran the following on
> libmythavformat.so.52:
> # nm -A -D /opt/MythTV-0.25.4/lib/libmythavformat.so.52 | grep aeabi
> /opt/MythTV-0.25.4/lib/libmythavformat.so.52:000b90f0 T __aeabi_d2lz
> /opt/MythTV-0.25.4/lib/libmythavformat.so.52:000b9138 T __aeabi_d2ulz
>
>
> which tells me that __aeabi_d2ulz seems to be a valid symbol, but maybe
> not the LIBAVFORMAT_52 version?
>
>
> Note, that libmythavformat is compiled from the
> "mythtv/external/FFmpeg/libavformat" directory. I tried copying
> libmythavformat binary files from 0.24.3 and I have the same problem, so I
> don't think it's an issue with FFmpeg. I also ran the following:
> # objdump -T /opt/MythTV-0.25.4/bin/mythbackend | grep aeabi
>
> 0001a82c      DF *UND*  00000000  GCC_3.5     __aeabi_fdiv
> 0001aa9c      DF *UND*  00000000  GCC_3.5     __aeabi_idivmod
> 00000000      DF *UND*  00000000  GCC_3.5     __aeabi_unwind_cpp_pr0
> 0001abe0      DF *UND*  00000000  GCC_3.5     __aeabi_uldivmod
> 0001ac64      DF *UND*  00000000  GCC_3.5     __aeabi_i2d
> 0001ad90      DF *UND*  00000000  GCC_3.5     __aeabi_f2d
> 0001ae5c      DF *UND*  00000000  GCC_3.5     __aeabi_ul2d
> 0001af58      DF *UND*  00000000  GCC_3.5     __aeabi_ui2d
> 0001b2d0      DF *UND*  00000000  GCC_3.5     __aeabi_fadd
> 0001b6e4      DF *UND*  00000000  GCC_3.5     __aeabi_l2d
> 0001b7bc      DF *UND*  00000000  GCC_3.5     __aeabi_fmul
> 0001bf24      DF *UND*  00000000  GCC_3.5     __aeabi_dcmpgt
>
> which seems to not reference the __aeabi_d2ulz symbol.
>
> The issue I had 2 years ago was that it wouldn't compile; it got stuck at
> mythtv/programs/mythavtest with a ../../libs/libmythtv/libmythtv-0.25.so:
> undefined reference to `__aeabi_d2lz at LIBAVCODEC_52' error.  Now, it
> compiles just fine, but crashes when trying to stream a file.
>
> Hopefully one of you gurus can point me in the right direction...
>
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