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Beginner
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umc_speech_rtp_codec on Linux

Hello Forum,

i have a problem with the MSRTA Codec. To explain: i tried to build the umc_speech_rtp_codec sample on Linux, because i want to use different functions in my own tool. I just use the sample application to test some functions and the build procedure. So i integrated the sample in my Linux environment and built a make file. The compiler works well but the linker gives me 7 errors like: "undefined reference to MSRTADejitterDelete" in the umc_rta_jbuffer.cpp. All errors are undefined references, and all are refer to the MSRTA Functions in the wmsprt.h. I included all needed ipp libraries like: libippsemerged, libippsmerged, libippscemerged, libippscmerged, libippsremerged, libippsrmerged, libippcore and the corresponding .so libs in the sharedlib folder. Also i set all needed system variables like LD_LIBRARY_PATH and so on.

So far so good. Now my question. Is it generally possible to build this sample on Linux with all supported codecs? Or is there just a problem with the MSRTA on Linux? Wich Libraries i need exactly? Maybe i forgot one. What else could be the problem?

I use:

OpenSuse 10.3; Eclipse CDT 6, qmake 4.5 to generate a make file and the gcc 4.2.1 compiler

Thank you for your help, i'm happy about every hint.

regards Otto

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2 Replies
Employee
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Hi Otto,

Are you using Windows IPP sample code at Linux system? MSRTA is only supported in Windows.

In Linux system, you need to use Linux speech codec sample code.

Thanks,

Chao

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Beginner
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Hi Chao,

thanks for your answer. Yes i want to use the Windows IPP sample code at a linux system because the umc_speech_rtp_codec sample is not available for Linux. At least i didn't find it in all downloads. So i tried to convert it (with using the vm_types_linux32.h and so on). Now i removed the MSRTA codec and can build the application. :-)

What do you mean with "use Linux speech codec sample code"? And is there a way to add the MSRTA codec also in Linux?

Thanks,

Otto

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