mirror of
https://github.com/McSinyx/palace
synced 2023-12-14 09:02:59 +01:00
57 lines
2.1 KiB
Python
Executable file
57 lines
2.1 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# Example for latency checking
|
|
# Copyright (C) 2020 Ngô Ngọc Đức Huy
|
|
#
|
|
# This file is part of palace.
|
|
#
|
|
# palace is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License,
|
|
# or (at your option) any later version.
|
|
#
|
|
# palace is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with palace. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
from argparse import ArgumentParser
|
|
from sys import stderr
|
|
from time import sleep
|
|
from typing import Iterable
|
|
|
|
from palace import Context, Device, Source, decode
|
|
|
|
CHUNK_LEN: int = 12000
|
|
QUEUE_SIZE: int = 4
|
|
PERIOD: float = 0.01
|
|
|
|
|
|
def play(files: Iterable[str], device: str) -> None:
|
|
"""Load and play the file on given device."""
|
|
with Device(device) as dev, Context(dev) as ctx, Source() as src:
|
|
print('Opened', dev.name)
|
|
for filename in files:
|
|
try:
|
|
decoder = decode(filename)
|
|
except RuntimeError:
|
|
stderr.write(f'Failed to open file: {filename}\n')
|
|
decoder.play(CHUNK_LEN, QUEUE_SIZE, src)
|
|
print(f'Playing {filename} ({decoder.sample_type},',
|
|
f'{decoder.channel_config}, {decoder.frequency} Hz)')
|
|
while src.playing:
|
|
print('Offset:', round(src.offset_seconds), 's - Latency:',
|
|
src.latency//10**6, 'ms', end='\r', flush=True)
|
|
sleep(PERIOD)
|
|
ctx.update()
|
|
print()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
parser = ArgumentParser()
|
|
parser.add_argument('files', nargs='+', help='audio files')
|
|
parser.add_argument('-d', '--device', default='', help='device name')
|
|
args = parser.parse_args()
|
|
play(args.files, args.device)
|