aplay: add support for G.711 A_LAW enconding in AU file format

alsa-project/alsa-utils pull request #297 was opened from chleroy:

At the time being, aplay only supports G.711 µ-law, 8-bits PCM and 16-bits PCM encodings for the AU format while the AU format supports many more.

In Europe the most G.711 used encoding is the A-law, which is also part of the encodings supported by the AU file format.

Add support for that encoding in aplay.

Request URL : https://github.com/alsa-project/alsa-utils/pull/297 Patch URL : https://github.com/alsa-project/alsa-utils/pull/297.patch Repository URL: https://github.com/alsa-project/alsa-utils