topic iLBC Link Error in Intel® Integrated Performance Primitives

iLBC Link Error

mgarrettcallcopy_com — Wed, 01 Dec 2010 16:34:52 GMT

I'm trying to use the umc speech rtp codec package and have been able to use all the codecs with the exception of ilbc. I am linking against the speech.lib (along with other intel IPP libs) that is built from the umc_speech_rtp_codec solution. Whenever I try to compile, I get the following error:

error LNK2001: unresolved external symbol _USC_ILBC_Fxns

error LNK1120: 1 unresolved externals

I'm just curious if I need to do anything special to get this enabled when I compile the speech.csproj? Any help is greatly appreciated and thanks in advance.

iLBC Link Error

Ying_H_Intel — Thu, 02 Dec 2010 03:23:52 GMT

Hi,

I guess the problem should be that IPP does not support iLBC codec yet.

Regards,
Ying

iLBC Link Error

mgarrettcallcopy_com — Thu, 02 Dec 2010 15:08:42 GMT

Ah, I thought it did. I saw this in the usc_codec_container.cpp:

#if (defined _USC_ILBC)

VM_STRING("IPP_iLBC"),&USC_ILBC_Fxns, &iLBCPayloadType,

#endif

#if (defined _USC_ILBC) VM_STRING("IPP_iLBC"),&USC_ILBC_Fxns, &iLBCPayloadType,#endif

As well as other code snippets referring to iLBC, even saw where it had the correct block size for both the 20ms and 30ms packetization where it was allocating 38 bytes for 20ms and 50 for 30ms.

iLBC Link Error

mgarrettcallcopy_com — Thu, 02 Dec 2010 20:21:29 GMT

Just out of curiosity, if it currently isn't implemented, was it at some point in time or was this something that was started but not completed? Just curious why some of the structures and defines are in the code?

iLBC Link Error

mgarrettcallcopy_com — Fri, 03 Dec 2010 21:17:23 GMT

Bump for a possible answer?

iLBC Link Error

Ying_H_Intel — Mon, 06 Dec 2010 00:57:52 GMT

Hi

I recalled there was an plan to implement it during year 2006-2007. Some difinitions was added. buthaven'treallycompletedit as lack of resource.The definitionsof_USC_ILBC was actuallynot enabled in the sample.

Regards,
Ying

iLBC Link Error

mgarrettcallcopy_com — Tue, 14 Dec 2010 15:54:08 GMT

Got ya. Thanks for clarifying ;).