pcm: Set SW params.avail_min to period size

Using MMAP APIs, this parameter wake up application
when 'avail_min' samples are availables.

When audio processing expects exactly a full period size samples,
the default parameter to 1 burns CPU until the full period available.

Fix SW params.avail parameter to period size value.

Signed-off-by: Miguel GAIO <mgaio35@gmail.com>
1 file changed
tree: b6f0d01d2e3c8a5952de42a55de46640d118806d
  1. debian/
  2. doxygen/
  3. examples/
  4. include/
  5. scripts/
  6. src/
  7. utils/
  8. .gitignore
  9. .travis.yml
  10. Android.bp
  11. CMakeLists.txt
  12. Makefile
  13. meson.build
  14. meson_options.txt
  15. NOTICE
  16. README.md
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 uses Makefile as the primary build system.

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