[Linphone-users] Using H264 cause build error for iOS

[Danny.Xu]

In my project, I do the following steps to make video call: 

1. Download https://www.linphone.org/releases/ios/liblinphone-iphone-sdk-2.2.4.zip

2. Import liblinphone 2.2.4 to my project.

3. Import LinphoneManager.h/.m from linphone-iphone sample project.

Everything works great when HAVE_OPENH264 is not defined. 

But I need H264, so set HAVE_OPENH264 in target build setting, and uncomment libmsopenh264_init()  in createLinphoneCore.

Then I can not build successfully. Errors are:

Undefined symbols for architecture arm64:

  "operator new(unsigned long)", referenced from:

      msopenh264_dec_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      msopenh264_enc_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      _WelsCreateDecoder in libopenh264.a(welsDecoderExt.o)

      _WelsCreateSVCEncoder in libopenh264.a(welsEncoderExt.o)

      WelsEnc::WelsInitEncoderExt(WelsEnc::TagWelsEncCtx**, WelsEnc::TagWelsSvcCodingParam*, TagLogContext*) in libopenh264.a(encoder_ext.o)

      _WelsCreateVpInterface in libopenh264.a(WelsFrameWork.o)

      WelsVP::CreateSpecificVpInterface(IWelsVP**) in libopenh264.a(WelsFrameWork.o)

      ...

  "vtable for __cxxabiv1::__si_class_type_info", referenced from:

      typeinfo for WelsDec::CWelsDecoder in libopenh264.a(welsDecoderExt.o)

      typeinfo for WelsEnc::CWelsH264SVCEncoder in libopenh264.a(welsEncoderExt.o)

      typeinfo for WelsVP::CVpFrameWork in libopenh264.a(WelsFrameWork.o)

      typeinfo for WelsVP::CDownsampling in libopenh264.a(downsample.o)

      typeinfo for WelsVP::IStrategy in libopenh264.a(downsample.o)

      typeinfo for WelsVP::CImageRotating in libopenh264.a(imagerotate.o)

      typeinfo for WelsVP::CVAACalculation in libopenh264.a(vaacalculation.o)

      ...

  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.

  "vtable for __cxxabiv1::__class_type_info", referenced from:

      typeinfo for MSOpenH264Decoder in libmsopenh264.a(libmsopenh264_la-msopenh264dec.o)

      typeinfo for VideoStarter in libmsopenh264.a(libmsopenh264_la-msopenh264enc.o)

      typeinfo for MSOpenH264Encoder in libmsopenh264.a(libmsopenh264_la-msopenh264enc.o)

      typeinfo for ISVCDecoder in libopenh264.a(welsDecoderExt.o)

      typeinfo for ISVCEncoder in libopenh264.a(welsEncoderExt.o)

      typeinfo for WelsEnc::CMemoryAlign in libopenh264.a(memory_align.o)

      typeinfo for WelsEnc::CWelsPreProcess in libopenh264.a(wels_preprocess.o)

      ...

  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.

  "___gxx_personality_v0", referenced from:

      msopenh264_dec_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      msopenh264_enc_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      MSOpenH264Decoder::~MSOpenH264Decoder() in libmsopenh264.a(libmsopenh264_la-msopenh264dec.o)

      MSOpenH264Encoder::~MSOpenH264Encoder() in libmsopenh264.a(libmsopenh264_la-msopenh264enc.o)

      WelsDec::CWelsDecoder::~CWelsDecoder() in libopenh264.a(welsDecoderExt.o)

      WelsDec::CWelsDecoder::~CWelsDecoder() in libopenh264.a(welsDecoderExt.o)

      _WelsCreateDecoder in libopenh264.a(welsDecoderExt.o)

      ...

  "operator delete(void*)", referenced from:

      msopenh264_dec_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      msopenh264_enc_init(_MSFilter*) in libmsopenh264.a(libmsopenh264_la-msopenh264.o)

      MSOpenH264Decoder::~MSOpenH264Decoder() in libmsopenh264.a(libmsopenh264_la-msopenh264dec.o)

      VideoStarter::~VideoStarter() in libmsopenh264.a(libmsopenh264_la-msopenh264enc.o)

      MSOpenH264Encoder::~MSOpenH264Encoder() in libmsopenh264.a(libmsopenh264_la-msopenh264enc.o)

      WelsDec::CWelsDecoder::~CWelsDecoder() in libopenh264.a(welsDecoderExt.o)

      WelsDec::CWelsDecoder::~CWelsDecoder() in libopenh264.a(welsDecoderExt.o)

      ...

ld: symbol(s) not found for architecture arm64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

>lipo -info libmsopenh264.a

>Architectures in the fat file: libmsopenh264.a are: armv7 i386 arm64 

The arm64 is supported, so how can I fix this build error? (Disable arm64 in "Valid Architectures" not work as well)