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Re: [Linphone-users] [Linphone-developers] bcg729 codec problem


From: Ričardas Stoma
Subject: Re: [Linphone-users] [Linphone-developers] bcg729 codec problem
Date: Wed, 17 Sep 2014 00:29:28 +0300

I enabled debug symbols and this is what i get now:

#0  0x00007f428f5329ed in countLeadingZeros (x=0) at ../include/utils.h:101
#1  0x00007f428f532a1b in g729Sqrt_Q0Q7 (x=-128) at ../include/g729FixedPointMath.h:144
#2  0x00007f428f5339f6 in postFilter (decoderChannelContext=0x7f421c0025d0, LPCoefficients=0x7f428d4873b4, reconstructedSpeech=0x7f421c002822, intPitchDelay=20,
    subframeIndex=40, postFilteredSignal=0x7f428d4872f0) at postFilter.c:325
#3  0x00007f428f52f8b5 in bcg729Decoder (decoderChannelContext=0x7f421c0025d0, bitStream=0x7f421c017e8c "address@hidden",
    frameErasureFlag=0 '\000', signal=0x7f427c06aa48) at decoder.c:222
#4  0x00007f428f52efff in switch_bcg729_decode (codec=<value optimized out>, other_codec=<value optimized out>, encoded_data=<value optimized out>,
    encoded_data_len=2, encoded_rate=<value optimized out>, decoded_data=<value optimized out>, decoded_data_len=0x7f427c06a998, decoded_rate=0x7f427c06a9a4,
    flag=0x7f424403c50c) at mod_bcg729.c:164
#5  0x00007f42a8a175bf in switch_core_codec_decode (codec=0x7f424403c520, other_codec=<value optimized out>, encoded_data=0x7f421c017e8c,

Any ideas why it happens? 

2014-09-16 12:07 GMT+03:00 BIENKOWSKI Guillaume <address@hidden>:
Try compiling with debug symbols, you'll have a more meaningful trace


On Mon, Sep 15, 2014 at 12:04 PM, Ričardas Stoma <address@hidden> wrote:
Hello, im using bcg729 codec in freeswitch but sometimes calls get stuck and CPU load jumps to 100%. I don't know how to reproduce this issue.

I did backtrace and this is what i got:

#0  0x00007ff933dbb9e6 in ?? () from /usr/local/freeswitch/mod/mod_bcg729.so
#1  0x00007ff933dbba1b in ?? () from /usr/local/freeswitch/mod/mod_bcg729.so
#2  0x00007ff933dbc9f6 in postFilter () from /usr/local/freeswitch/mod/mod_bcg729.so
#3  0x00007ff933db88b5 in bcg729Decoder () from /usr/local/freeswitch/mod/mod_bcg729.so
#4  0x00007ff933db7fff in switch_bcg729_decode (codec=<value optimized out>, other_codec=<value optimized out>, encoded_data=<value optimized out>,
    encoded_data_len=2, encoded_rate=<value optimized out>, decoded_data=<value optimized out>, decoded_data_len=0x7ff920179968, decoded_rate=0x7ff920179974,
    flag=0x7ff860039a7c) at mod_bcg729.c:164
#5  0x00007ff94cf995bf in switch_core_codec_decode (codec=0x7ff860039a90, other_codec=<value optimized out>, encoded_data=0x7ff8dc0149bc,
    encoded_data_len=<value optimized out>, encoded_rate=<value optimized out>, decoded_data=0x7ff920179a18, decoded_data_len=0x7ff920179968,
    decoded_rate=0x7ff920179974, flag=0x7ff860039a7c) at src/switch_core_codec.c:781
...

Any suggestions what to do now?

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