pjsua | Docker version | Continuous Deployment library

I am trying to compile and build PjProject {PJSUA}, with both audio and video support into it. But falling into the errors everytime which is Unresolved_External_Symbols.

I am building this project for Windows-32-BIT using Visual Studio 2022 and toolchain set latest version that is v143.

I want to intialize the various codec {OPUS, OPENH264, FFMPEG, OPENSSL, SDL etc}. I will just ask about the OPUS LIBRARY.

The steps are as follows:

1. Got the source of latest version of PjProject and loaded the project in Visual Studio 2022.

2. Mention the Opus Include directory and Opus Library Directory after compiling and building LibOpus.

3. Making PJSUA as source project and Setting configuration as Debug-Static-Win32 and start building the project.

NOTE

• Other addition dependencies such as SDL header and lib file have been included already.
• The config_site.h have been used to define the codec use {#define PJMEDIA_HAS_OPUS_CODEC 1}

The error that I have received into the error log are as following:

I am using pjsip library through android ndk. I used Android NDK 16 to compile pjsip. One user (HTC One, Android 5.0.2) faced a lot of crashes while trying to start our project. This is the error:

I am developing a multi-account SIP softphone with custom media transport. I need to manage multiple calls simultaneously. I have read in "PJSUA2 Book" (3 PJSUA2-High Level API / General concepts / Asynchronous Operations):

(...) all operations that involve sending and receiving SIP messages are asynchronous, meaning that the function that invokes the operation will complete immediately (...) When this function [pj::Call::makeCall] returns successfully, it does not mean that the call has been established, but rather it means that the call has been initiated successfully. You will be given the report of the call progress and/or completion in the onCallState() callback method of Call class.

So I thought that I could call pj::Call::makeCall whenever/wherever I needed to initiate a call, the function would return nearly immediately and any progress would be reported in the callback methods. But today in my test environment I noticed a few seconds delay between the moment I called the function and it returned. Below there are detailed PJSIP logs that appear between makeCall is called and it returned. One can see almost 4s gap before "RTP socket reachable":

I was using speech_recognition with a wav file that pjsua recorded, and it always ends with an error msg when I try to send the content of the file.

Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format

The file plays normally using MPV, and inspecting the file show that it's a PCM (I used the file command).

test2.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz

Looking up, I found a guy with a similar problem, the proposed solution (change a few parameters using the wave library) did not work out to me. After I use the wav.setparams((2, 2, 44100, 0, 'NONE', 'NONE')) the audio became complete garbage, like ant's talking.

I really don't understand enough about sound files to understand what the "channels", "sampwidth", "framerate", "nframes", "comptype" and "compname" means...

I'm trying to make a SIP request to a SIP server, using pjsua, a SIP client by pjsip (version 2.10, 2020-02-14). Starting the client this way:

If I create an application using PJSUA, then after the pjsua_create() system call, a huge amount of debugging information falls onto the console of my application. This is convenient at the development stage, but after it interferes with the work with programm.

How can you predefine verbosity level of this debugging information? So that when pjsua_create() is called, it is already set.

Thank you for the informative answers.