Hi Dragos,
I tried to use your patch but have no luck with compiling it.

I clonne stable 1.2 and then replace mod_opus.c with your code. Maybe do you know how to fix it?

This is what I get:
d_opus/mod_opus.c  -fPIC -DPIC -o .libs/mod_opus.o
/usr/src/freeswitch/src/mod/codecs/mod_opus/mod_opus.c: In function 'switch_opus_fmtp_parse':
/usr/src/freeswitch/src/mod/codecs/mod_opus/mod_opus.c:155:18: error: 'switch_codec_fmtp_t' has no member named 'stereo'
/usr/src/freeswitch/src/mod/codecs/mod_opus/mod_opus.c: In function 'switch_opus_decode':
/usr/src/freeswitch/src/mod/codecs/mod_opus/mod_opus.c:423:3: error: statement with no effect [-Werror=unused-value]
cc1: all warnings being treated as errors
make[4]: *** [mod_opus.lo] Error 1
make[3]: *** [all] Error 1
make[2]: *** [mod_opus-all] Error 1
make[1]: *** [mod_opus] Error 2
make: *** [mod_opus] Error 2


2015-04-14 14:52 GMT+06:00 Dragos Oancea <droancea@yahoo.com>:

Hi Kamil,

I've done a patch for Opus with FEC , but it has not been merged:
I was inspired by how they've done it with SILK.


Regards,
Dragos Oancea



On 2015-04-13 16:49, Kamil Nigmatullin wrote:
> Hello. 
> 
> Anybody from developers could please clarify if FreeSWITCH uses
> Forward Error Correction feature in opus codec? We actually are not a
> specialists in C and cannot fully understand how decode function works
> in 414 line. According to opus documentation decode function  is
> called with special flag if previous packet is lost in order to call
> fec feature. In mod_opus it is hard to say for me as i don't see i or
> i+1 packets. Thanks    
> _________________________________________________________________________
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