from socket import *
from audio.audioserver import AudioServer
from audio.sink.alsasink import AlsaSink
import os
import signal
from asyncproc import Process
from threading import Thread
from time import sleep
channels = 1
sample_width = 2
sample_rate = 44100
audio_sink = AlsaSink()
audio_sink.change_state(channels, sample_width, sample_rate)
playback = AudioServer(audio_sink, channels * sample_width)
def force(f, *args):
f(*args)
try:
port = int(os.environ['PORT'])
except:
port = 47231
server_socket = socket(AF_INET, SOCK_STREAM)
try:
server_socket.bind(('', port))
finally:
force(playback.stop)
server_socket.listen(1)
class AudioServer:
def __init__(self, sink, frame_size, source=None):
self.__sink = sink
self.__frame_size = frame_size
self.__audio_stream = source
self.__buffer = b''
self.__done = Event()
def set_source(self, source):
self.__audio_stream = source
def get_source(self):
return self.__audio_stream
def start(self):
self.__done.clear()
while not self.__done.is_set():
bts = self.__audio_stream.read()
self.__buffer += bts
if len(self.__buffer) >= self.__frame_size:
lo = len(self.__buffer) % self.__frame_size
self.__sink.write_frames(self.__buffer[:len(self.__buffer)-lo])
self.__buffer = self.__buffer[:-lo]
def stop(self):
self.__done.set()
if __name__=='__main__':
from audio.sink.alsasink import AlsaSink
asnk = AlsaSink()
asnk.change_state(2, 2, 44100)
asrv = AudioServer(open('./audio/output', 'rb'), asnk, 2)
asrv.start()
from audio.sink.alsasink import AlsaSink
from audio.source.wavesource import WaveSource
from sys import argv
wsrc = WaveSource(argv[1])
asnk = AlsaSink()
asnk.change_state(wsrc.get_num_channels(), wsrc.get_sample_width(), wsrc.get_sample_rate())
while True:
bts = wsrc.read_frames(256)
if not len(bts):
break
asnk.write_frames(bts)
