ford-prefect / xml2ucm

Android mixer_path XML to ALSA UCM converter

xml2ucm

This tool helps convert Android mixer_paths.xml audio configuration to the ALSA UCM format. There is a sample configuration file in examples/ for the Nexus 4 (mako).

In relatively simple setups, the UCM that is produced should just work, but some manual tweaking might be required based on the audio subsystem (PulseAudio, CrAS, ...) and the hardware.

You can read more about the motivation and design in my blog post.

Building

To build the code, you'll need stack, which your distribution probably provides. Check out the code and then run:

$ stack setup # if you haven't done this once already
$ stack build

Running

To build with the example, you could do something like:

$ stack exec -- xml2ucm -m examples/mako-mixer_paths.xml -c examples/mako-config.xml -o examples

The generated files will be in examples/apq8064-tabla-snd-card/.

xml2ucm's Issues

xml2ucm: Prelude.head: empty list

Hi,
I'm trying to get HiFi UCM for audio codec.

https://github.com/jacoghi/android_device_xiaomi_markw/blob/master/audio/mixer_paths_wcd9335.xml

https://github.com/jacoghi/android_device_xiaomi_markw/blob/master/audio/audio_policy_configuration.xml

stack exec -- xml2ucm -m examples/mixer_paths_wcd9335.xml -c examples/audio_policy_configuration.xml -o examples

I kept both xml file example directory but i'm getting

xml2ucm: Prelude.head: empty list

Do mind what could be the issue?

Here's an issue...

You're a bloody genius. I'm building it right now.

example is not working

Running
To build with the example, you could do something like:

$ stack exec xml2ucm -m examples/mako-mixer_paths.xml -c examples/mako-config.xml -o examples
The generated files will be in examples/apq8064-tabla-snd-card/.
[Getting error]
Invalid option -m

stack version 1.5.1

How to write a "config"?

Hello,
I didn't find it mentioned anywhere so how do I write the config that's being used in the -c parameter?
And also what to do with the resulting files (HiFi and a .conf file)?

EDIT: Just found the path /usr/share/alsa/ucm/.