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android / platform / external / tinyalsa_new / refs/tags/android-platform-12.1.0_r36
taga2b7b7b28d8cc7172b1fc0671ef15ca56b22dcf7
taggerThe Android Open Source Project <initial-contribution@android.com>Tue Feb 04 16:02:21 2025 -0800
objectaa15f54e97e2a4cf1a4a72e344f4df546cb783c3 
Android Platform 12.1.0 Release 36 (12859805)
commitaa15f54e97e2a4cf1a4a72e344f4df546cb783c3[log] [tgz]
authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Tue Jul 20 01:07:29 2021 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Tue Jul 20 01:07:29 2021 +0000
treedba9653c5ab26933a0a29a0a19f754f14e96fe89
parentb5a2f16c845f9c52d31aa554065851819fe6c85d [diff]
parent48771eb6d2805e71c0656128778907486334b6a6 [diff]
Snap for 7562406 from 48771eb6d2805e71c0656128778907486334b6a6 to sc-v2-release

Change-Id: I4c11427ff93a3c39b906a6784cc71cc1f4edc2ca
tree: dba9653c5ab26933a0a29a0a19f754f14e96fe89
  1. debian/
  2. doxygen/
  3. examples/
  4. include/
  5. scripts/
  6. src/
  7. tests/
  8. utils/
  9. LICENSE ⇨ NOTICE
  10. .gitignore
  11. .travis.yml
  12. Android.bp
  13. BUILD
  14. CMakeLists.txt
  15. Makefile
  16. meson.build
  17. meson_options.txt
  18. METADATA
  19. MODULE_LICENSE_BSD
  20. NOTICE
  21. OWNERS
  22. README.md
  23. WORKSPACE
README.md

TinyALSA

Build Status

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:

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 packages from launchpad:

Package Name:Description:
tinyalsaContains tinyplay, tinycap, tinymix and tinypcminfo
libtinyalsaContains the shared library
libtinyalsa-devContains 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 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