linphone

環境: ubuntu18.04

1. Download SDK
    a. git clone 後，大多都是空的資料夾，必需再透過cmake來下載與編譯
    b. 事先安裝

cmake >= 3.6
python = 2.7 (python 3.7 if C# wrapper generation is disabled)
sudo apt-get install yasm nasm doxygen
sudo apt-get install libspeex-dev libavcodec-dev libxv-dev libx11-dev libglew-dev
sudo apt-get install libgl1-mesa-glx
sudo pip2 install Pystache six 

cmake version: 3.6 or website
ref: Here

2. 下載 (感謝eric提供)

#/bin/bash

if [ $# -ne 1 ]; then
 echo "使用方式：$0 user_name"
 exit 0
fi

root_dir=$PWD
user=$1

dir=( bcmatroska2 bctoolbox bcunit belr bzrtp ortp belle-sip lime belcard mediastreamer2 mswebrtc liblinphone )
for dir_name in "${dir[@]}"
do
   echo "https://gitlab.linphone.org/BC/public/${dir_name}.git"
   repository="https://gitlab.linphone.org/BC/public/${dir_name}.git"
   git clone ${repository}
done

cd $PWD
rm -rf cmake-builder
git clone https://gitlab.linphone.org/BC/public/linphone-cmake-builder
sleep 1
mv linphone-cmake-builder cmake-builder

cd $root_dir/external
dir=( bv16-floatingpoint codec2 decaf ffmpeg libxsd gsm libjpeg-turbo libvpx libxml2 soci mbedtls opencore-amr openh264 opus xerces-c speex sqlite3 srtp vo-amrwbenc zlib zxing-cpp )
for dir_name in "${dir[@]}"
do
    echo "https://gitlab.linphone.org/BC/public/external/${dir_name}.git"
    repository="https://gitlab.linphone.org/BC/public/external/${dir_name}.git"
    git clone ${repository}
done

cd $root_dir/mswebrtc
git clone https://gitlab.linphone.org/BC/public/external/webrtc.git


cd /usr/local/
sudo chown $user:$user bin etc include lib sbin share src

cd /usr/local/lib/
sudo chown $user:$user pkgconfig

cd /usr
sudo chown $user:$user local

3. 編譯:

cd linphone_sdk
mkdir build
cmake ..
cmake --build.

make

成功的話，build/WORK/desktop/會有些exe檔
ex: build/WORK/desktop/Build/linphone/console

4. SDK sample code (C code, 用第一段)



隨手寫
1. linphone-sdk/mediastreamer2/tester/mediastreamer2_audio_stream_tester.c

    BC_ASSERT_EQUAL(audio_stream_start_full(marielle
                                              , profile
                                              , marielle_remote_ip
                                              , marielle_remote_rtp_port
                                              , marielle_remote_ip
                                              , marielle_remote_rtcp_port
                                              , 0
                                              , 50
                                              , NULL
                                              , NULL //hello_file
                                              , NULL //play card
                                              , sndcard_capture //capture card
                                              , 0)
                      ,0, int, "%d");

2.  linphone-sdk/mediastreamer2/src/audiofilters/alsa.c

static int alsa_read(snd_pcm_t *handle,unsigned char *buf,int nsamples)
{
 int err;
 err=snd_pcm_readi(handle,buf,nsamples);
 if (err<0) {
  ms_warning("alsa_read: snd_pcm_readi() returned %i",err);
  if (err==-EPIPE){
   snd_pcm_prepare(handle);
   err=snd_pcm_readi(handle,buf,nsamples);
   if (err<0) ms_warning("alsa_read: snd_pcm_readi() failed:%s.",snd_strerror(err));
  }else if (err==-ESTRPIPE){
   alsa_resume(handle);
  }else if (err!=-EWOULDBLOCK){
   ms_warning("alsa_read: snd_pcm_readi() failed:%s.",snd_strerror(err));
  }
 }else if (err==0){
  ms_warning("alsa_read: snd_pcm_readi() returned 0");
 }

#if 1 //fread
    int rc;
    char change[1];
    int ichange=0;
    fseek(fp_test, -1, SEEK_CUR );
    rc=fread(change, 1, 1, fp_test);
    fseek(fp_test, 0, SEEK_CUR );
    ichange=atoi(change);
    //fprintf(stderr, "change=%s, ichange=%d\n", change, ichange);
    if (ichange)
        fseek( fp_read, 0, SEEK_SET );

    rc=fread(buf, 1, nsamples*2, fp_read);
    if (rc == 0) 
      printf("end of file on input\n");
    else if (rc != nsamples*2) 
      printf("short read: read %d bytes\n", rc);

#else  //fwrite
    //for recording local voice
    fwrite(buf, 1, nsamples*2, fp_read);
#endif
 return err;
}

static int alsa_write(snd_pcm_t *handle,unsigned char *buf,int nsamples)
{
    int err;
    if ((err=snd_pcm_writei(handle,buf,nsamples))<0)
    {
 if (err==-EPIPE){
  snd_pcm_prepare(handle);
#ifdef EPIPE_BUGFIX
  alsa_fill_w (handle);
#endif
  err=snd_pcm_writei(handle,buf,nsamples);
         if (err<0) ms_warning("alsa_card_write: Error writing sound buffer (nsamples=%i):%s",nsamples,snd_strerror(err));
  }else if (err==-ESTRPIPE){
   alsa_resume(handle);
  }else if (err!=-EWOULDBLOCK){
   ms_warning("alsa_card_write: snd_pcm_writei() failed:%s.",snd_strerror(err));
  }
 }else if (err!=nsamples) {
  ms_debug("Only %i samples written instead of %i",err,nsamples);
 }
#if 1
    fwrite(buf, 1, nsamples*2, fp_write);
#endif
 return err;
}