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|
TinyALSA
========
[](https://travis-ci.org/tinyalsa/tinyalsa)
TinyALSA is a small library to interface with ALSA in the Linux kernel.
The aims are:
- Provide a basic pcm and mixer API.
- If it's not absolutely needed, don't add it to the API.
- Avoid supporting complex and unnecessary operations, that could be
dealt with at a higher level.
- Provide comprehensive documentation.
### Building
TinyALSA supports these build systems:
- [CMake](https://en.wikipedia.org/wiki/CMake)
- [Make](https://en.wikipedia.org/wiki/Make_(software))
- [Meson](https://en.wikipedia.org/wiki/Meson_(software))
- [Soong](https://android.googlesource.com/platform/build/soong/+/refs/heads/master/README.md) for Android
To build and install with Make, run the commands:
```
make
sudo make install
sudo ldconfig
```
### Installing
TinyALSA is now available as a set of the following [Debian](https://en.wikipedia.org/wiki/Debian)
packages from [launchpad](https://launchpad.net/~taylorcholberton/+archive/ubuntu/tinyalsa):
| Package Name: | Description: |
|-----------------|-----------------------------------------------------|
| tinyalsa | Contains tinyplay, tinycap, tinymix and tinypcminfo |
| libtinyalsa | Contains the shared library |
| libtinyalsa-dev | Contains the static library and header files |
To install these packages, run the commands:
```
sudo apt-add-repository ppa:taylorcholberton/tinyalsa
sudo apt-get update
sudo apt-get install tinyalsa
sudo apt-get install libtinyalsa-dev
```
### Documentation
Once installed, the man pages are available via:
```
man tinyplay
man tinycap
man tinymix
man tinypcminfo
man libtinyalsa-pcm
man libtinyalsa-mixer
```
### Test
To test libtinyalsa, please follow the instructions,
#### Setup Bazel build environment
Visit [here](https://docs.bazel.build/versions/3.7.0/install.html) to get more info to setup Bazel environment.
#### Insert loopback devices
The test program does pcm_* operations on loopback devices. You have to insert loopback devices after your system boots up.
```
sudo modprobe snd-aloop
sudo chmod 777 /dev/snd/*
```
#### Run test program
```
bazel test //:tinyalsa_tests --test_output=all
```
The default playback device is hw:2,0 and the default capture device is hw:2,1. If your loopback devices are not hw:2,0 and hw:2,1, you can specify the loopback device.
```
bazel test //:tinyalsa_tests --test_output=all \
--copt=-DTEST_LOOPBACK_CARD=[loopback card] \
--copt=-DTEST_LOOPBACK_PLAYBACK_DEVICE=[loopback playback device] \
--copt=-DTEST_LOOPBACK_CAPTURE_DEVICE=[loopback capture device]
```
#### Generate coverage report
```
bazel coverage //:tinyalsa_tests --combined_report=lcov --test_output=all
genhtml bazel-out/_coverage/_coverage_report.dat -o tinyalsa_tests_coverage
```
|
