Python 3 PJSIP with memory buffers for audio streaming

WARNING: PROJECT IS DEPRECATED - This project only partially works. Instead use:** pjproject fork by malarinv - Branch: py37

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I have simply combined the following two libraries because I needed both in one.

This version works with pjproject-2.9.

Install and compile PJSUA(XT) for Python 3

sudo apt install python3 python3-dev build-essential libasound2-dev
wget https://www.pjsip.org/release/2.9/pjproject-2.9.zip
unzip pjproject-2.9.zip
cd pjproject-2.9
chmod +x configure aconfigure
./configure CXXFLAGS=-fPIC CFLAGS=-fPIC LDFLAGS=-fPIC CPPFLAGS=-fPIC
make dep
make
sudo make install

cd pjsip-apps/src/
git clone https://github.com/nicolaipre/python3-pjsip-memory-buffer.git
cd python3-pjsip-memory-buffer

python3 setup.py build
sudo python3 setup.py install

Test installation

Python 3.6.4 (default, Jul  1 2019, 21:52:48)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pjsuaxt
>>>

Usage

See file main.py in example-usage for full example.

# Create two audio IO buffers
call_audio    = BufferIO(sample_rate=48000.0)
discord_audio = BufferIO(sample_rate=48000.0)

# Create the audio connections
softphone  = Softphone(sample_rate=48000.0)
disc_vc    = DiscordVoice(sample_rate=48000.0)

# Start listening 
softphone.listen(call_audio)  # Capture phone audio to buffer
disc_vc.listen(discord_audio) # Capture discord audio to buffer

# Start relaying the captured audio
softphone.play(discord_audio) # Play discord audio to phone
disc_vc.play(call_audio)      # Play phone audio to discord voice connector

• For the original source, see: https://github.com/UFAL-DSG/alex/blob/master/alex/components/hub/vio.py

Credits to:

• https://github.com/UFAL-DSG/pjsip - For implementing buffered streaming
• https://github.com/mgwilliams/python3-pjsip - For porting to Python 3

Alternative implementation (have not checked for errors):

• https://github.com/pjsip/pjproject/pull/5/commits/8666ca5a3b82c6e2229161368edd0ecb8e3d6b7a