alsa-lib | The Advanced Linux Sound Architecture - library | Audio Utils library

I am trying to add alsa library to my Eclipse in order to cross-compile and debug in my iMX8X. I have cross compiled the alsa-lib by

I am trying to use Alsa library to reproduce the audio I get from my CAN FD communication, into my headphones. I don't quite understand how to properly configure Alsa's parameters, in order to be able to listen to the sound I get from the CAN FD.

• my java app work correct on local ubuntu without docker with: JDK 11, Spring Boot, Selenium 4.0.0-rc-1, Chromium 97.0.4692.99, ChromeDriver 96.0.4664.45

• my java app dont work when i migrate it to docker (alpine) with: JDK 11, Spring Boot, Selenium 4.0.0-rc-1, Chromium 93.0.4577.82, ChromeDriver 93.0.4577.63 (but app works fine on docker with ubuntu and chrome - now i have to migrate it to alpine and chromium)

My java driver fragment code (of course i have more standard options like --headless etc):

I've developped Java application to make some litle web scraping tasks with Selenium. It work fine in my local environment with Windows 10 and both chrome / FireFox last versions with their appropriate driver path configured.

The thing is I need my application to be in a container to deploy it and I've got issues. I've created a Dockerfile based on Alpine, and installed what need to be installed (helped by some posts found on the internet). With the FireFox driver it's working almost fine for the first operations but some do not work the same as they do in my configuration in local and some even crash the client... That's why I've tried with chromium but I've got some issues with a connection to the browser not even working.

I've spent hours already on this and start thinking maybe I'm missing something, am I supposed to do that way by dowloading browsers and driver in my Dockerfile ?

For now I sucpect the versions of FireFox or the geckodriver associated not behaving the same as the one I've got on my machine and I can see the browser when It's working inside the container only logs I've added.

Dockerfile (for FireFox browser try) :

I was reading about how to play audio from the linux kernel when I came across the ALSA (advanced linux sound architecture) and its api here in these kernel docs: https://www.kernel.org/doc/html/latest/sound/kernel-api/alsa-driver-api.html.

However it seems that most people who try to play audio in linux use the asound library, commonly included as so.

I'm having trouble using the CLion integration environment under linux.

When I execute a script using the system terminal, it is possible to run. compile_test.sh:

Trying to setup android-x86_64 inside vmware-workstation16, ALSA audio device as default/unprivileged user doesn't seem to be accessible. Trying to manually call alsa_amixer set PCM 100%/alsa_aplay /mnt/sdcard/Download/test.wav as non-root gives permission denied, all of this works fine as root.

Since android is based on linux I was trying around to somehow manually give default user access to specific ALSA device. I looked around manually adjusting /etc/group (which doesn't seem to be valid config file for android), giving read/write access to audio devices inside /dev/, but I couldn't identify which device that would be. Tried to manually alsa_ctl init 0 (but device is already correctly initialized on root's side) with no difference.

Output of commands as root user:

I would like to make the minimal working code to generate any kind of PCM sound using ALSA in C++ for a Linux computer.

I'm coding in C++ on Code::Blocks with Ubuntu 20.04.

I used to make simple Arduino UNO programs doing sound processing and just needed to play raw PCM samples.

ALSA Project's Website is not very easy to understand.

I looked at c - ALSA tutorial required to find out that many links are expired.

I copy pasted the code of the minimal PCM example in C directly into a empty Code::Blocks project and I got that error:

I'm trying to build a docker container on a Raspberry Pi 3B. I need to install gpac for MP4Box.

Dockerfile