bat: Add 'readcapture' option to support analyzing external audio

[GitHub pull_request - opened]

alsa-project/alsa-utils pull request #166 was opened from tbird20d:

If audio data is captured on another device (ie we are NOT using
loopback mode), then allow alsabat to analyze that data, by passing
a filename reference on the command line.

Add the '--readcapture' option to the argument parser. When
this option is specified, avoid doing a local capture, and instead
just read the audio data from the indicated file, and analyze that.

Signed-off-by: Tim Bird <tim.bird at sony.com>

Request URL   : https://github.com/alsa-project/alsa-utils/pull/166
Patch URL     : https://github.com/alsa-project/alsa-utils/pull/166.patch
Repository URL: https://github.com/alsa-project/alsa-utils