Test Liquidsoap & Engine Core with the Hardware parameters provided by `arecord --dump-hw-params`

Parent: [EPIC] Smooth play-out latency and buffering fo... (#50 - closed)

@Loxbie hinted the arecord --dump-hw-params parameter. Test Engine Core with the Hardware parameters provided.

arecord --dump-hw-params -D hw:5,0Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
HW Params of device "hw:5,0":
--------------------
ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 16
CHANNELS: 1
RATE: [16000 48000]
PERIOD_TIME: [1000 16384000]
PERIOD_SIZE: [32 262144]
PERIOD_BYTES: [64 524288]
PERIODS: [2 1024]
BUFFER_TIME: (1333 32768000]
BUFFER_SIZE: [64 524288]
BUFFER_BYTES: [128 1048576]
TICK_TIME: ALL
--------------------
arecord: set_params:1343: Sample format non available
Available formats:
- S16_LE

Suggested steps:

1. Start with a simple 2-liner Liquidsoap script
2. If that's working, try it with engine-core