Cross Compiling pjsip for Omega2+

Oleg

Hello,
I am trying to cross compile PJSIP for Omega2+.
host: Linux Mint 19.3
audio: usbaudio alsa-lib 1.1.6-1
Does anyone have a positive experience building a pjsip for omega?
I need step-by-step manual, thanks.

Oleg

Due to the lack of comments it is not clear, the topic is not interesting, either too simple or too complicated. I will describe what happened to me, maybe someone will come in handy.

Instruction to create pjsip ipk + alsa.
1 Install OpenWRT Build System (in my case on Linux Mint 19.3)
follow the manual.
https://docs.onion.io/omega2-docs/cross-compiling.html

Then.
ol@ol-VirtualBox:~/OpenWRT-builds/onion_tst$ cd source/
$ ./scripts/feeds update -a
$ ./scripts/feeds install -a

$ make menuconfig

Target System (MediaTek Ralink MIPS)
Subtarget (MT76x8 based board)
Target Profile (Multiple devices)
[*] Target Devices/ (Onion Omega2+)

Select telephony & alsa

* Libraries/alsa-lib

* Sound/alsa-utils

* Libraries/Telephony/libpj
* Libraries/Telephony/libpjlib-util
* Libraries/Telephony/libpjmedia
* Libraries/Telephony/libpjnath
* Libraries/Telephony/libpjsip
* Libraries/Telephony/libpjsip-simple
* Libraries/Telephony/libpjsip-ua
* Libraries/Telephony/libpjsua
<*> Libraries/Telephony/libpjsua2

2 edit Makefile:
<build-system>/source/feeds/telephony/libs/pjproject/Makefile
// ln:38 add "+alsa-lib"
DEPENDS:=$(CXX_DEPENDS) +libopenssl +libuuid +libpthread +alsa-lib

// ln:65 change
--disable-g711-codec
// to
--enable-g711-codec

// ln:81 change
--disable-sound
// to
--enable-sound

If the first build (no toolchain) need run.

$ make

This make will create toolchain, image and ipk pakages.
If there is a toolchain and you only need to create a pjsip packages, run.

$ make package/feeds/telephony/pjproject/compile

Result in.
<build-system>/source/bin/packages/mipsel_24kc/telephony
libpj_2.7.2-2_mipsel_24kc.ipk
libpjlib-util_2.7.2-2_mipsel_24kc.ipk
libpjsip_2.7.2-2_mipsel_24kc.ipk
libpjnath_2.7.2-2_mipsel_24kc.ipk
libpjmedia_2.7.2-2_mipsel_24kc.ipk
libpjsip-simple_2.7.2-2_mipsel_24kc.ipk
libpjsip-ua_2.7.2-2_mipsel_24kc.ipk
libpjsua_2.7.2-2_mipsel_24kc.ipk
libpjsua2_2.7.2-2_mipsel_24kc.ipk
libsrtp2_2.1.0-1_mipsel_24kc.ipk

My Omega2+: Ω-ware: 0.3.2 b239
Copy ipk files to Omega2 & install, in that order.
root@Omega-A0E7:~/projects/ipk_my# opkg install libpj_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjlib-util_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjsip_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjnath_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjmedia_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjsip-simple_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjsip-ua_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjsua_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libpjsua2_2.7.2-2_mipsel_24kc.ipk
root@Omega-A0E7:~/projects/ipk_my# opkg install libsrtp2_2.1.0-1_mipsel_24kc.ipk

Install alsa from repository or from ipk files.
root@Omega-A0E7:~/# opkg update
root@Omega-A0E7:~/# opkg install alsa-utils

Testing.
Link to application, config & ipk
https://drive.google.com/drive/folders/1Zr51okC9FJEvxXGqvt_Dmsm4doboAgEL?usp=sharing

<streamutil-win> folder include streamutil application for windows, copy this folder on windows computer, edit ip address of Omega2 cli-streamutil-Tx-Unicast.bat & run cli-streamutil-Tx-Unicast.bat

I am used Ethernet extention.
Config Ethernet port of Omega2.
Set same subnet for win & omega.

<streamutil-omega> folder include streamutil application for OpenWRT, on Omega2 copy files streamutil and sutil_rx_ucast.sh & run sutil_rx_ucast.sh.
The folder also contains files for building the project.

<ipk> folder include ipk files for pjsip building with alsa support.

.config: my menuconfig file.