hinawa-dg003-cli

#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright (C) 2018 Takashi Sakamoto

from hinawa_utils.misc.cli_kit import CliKit
from hinawa_utils.dg00x.dg003_unit import Dg003Unit


def handle_mixer_state(unit, args):
    ops = ('set', 'get')
    states = ('Disabled', 'Enabled')
    if len(args) >= 1 and args[0] in ops:
        op = args[0]
        if len(args) >= 2 and op == 'set' and args[1] in states:
            enabled = bool(args[1] == 'Enabled')
            unit.set_mixer_status(enabled)
            return True
        else:
            state = unit.get_mixer_status()
            index = 1 if state else 0
            print(states[index])
            return True
    print('Argumetns for mixer-state command:')
    print('  mixer-enable OP [ENABLED]')
    print('    OP:     [{0}]'.format('|'.join(ops)))
    print('    ENABLED:[{0}]'.format('|'.join(states)))
    return False


def handle_mixer_source(unit, args):
    srcs = unit.get_mixer_src_labels()
    items = {
        'pan':  {
            'set':  unit.set_mixer_src_balance,
            'get':  unit.get_mixer_src_balance,
        },
        'gain': {
            'set':  unit.set_mixer_src_gain,
            'get':  unit.get_mixer_src_gain,
        },
    }
    ops = ('set', 'get')
    chs = ('0', '1')
    if len(args) >= 4:
        src, item, op, ch = args[0:4]
        if src in srcs and item in items and op in ops and ch in chs:
            ch = int(ch)
            if op == 'set' and len(args) >= 5:
                val = float(args[4])
                items[item][op](src, ch, val)
                return True
            elif op == 'get':
                val = items[item][op](src, ch)
                print('{:.3f}'.format(val))
                return True
    print('Arguments for mixer-source command:')
    print('  mixer-source SRC ITEM OP CH [dB|BALANCE]')
    print('    SRC:    [{0}]'.format('|'.join(srcs)))
    print('    ITEMS:  [{0}]'.format('|'.join(items)))
    print('    OP:     [{0}]'.format('|'.join(ops)))
    print('    CH:     [{0}]'.format('|'.join(chs)))
    print('    dB:     [-inf, -175.000...0.000]')
    print('    BALANCE:[0.000...100.000]')
    return False


cmds = {
    'mixer-state':  handle_mixer_state,
    'mixer-source': handle_mixer_source,
}

fullpath = CliKit.seek_snd_unit_path()
if fullpath:
    with Dg003Unit(fullpath) as unit:
        CliKit.dispatch_command(unit, cmds)