chore(playout): restructure modules (#1971)
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Jonas L
GitHub
parent
57046e2a9d
commit
7e2f2d60f0
16 changed files with 20 additions and 20 deletions
343
playout/libretime_playout/player/liquidsoap_gateway.py
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343
playout/libretime_playout/player/liquidsoap_gateway.py
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@ -0,0 +1,343 @@
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import telnetlib
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import traceback
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from loguru import logger
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from ..timeout import ls_timeout
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def create_liquidsoap_annotation(media):
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# We need liq_start_next value in the annotate. That is the value that controls overlap duration of crossfade.
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filename = media["dst"]
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annotation = (
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'annotate:media_id="%s",liq_start_next="0",liq_fade_in="%s",'
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+ 'liq_fade_out="%s",liq_cue_in="%s",liq_cue_out="%s",'
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+ 'schedule_table_id="%s",replay_gain="%s dB"'
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) % (
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media["id"],
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float(media["fade_in"]) / 1000,
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float(media["fade_out"]) / 1000,
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float(media["cue_in"]),
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float(media["cue_out"]),
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media["row_id"],
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media["replay_gain"],
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)
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# Override the the artist/title that Liquidsoap extracts from a file's metadata
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# with the metadata we get from Airtime. (You can modify metadata in Airtime's library,
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# which doesn't get saved back to the file.)
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if "metadata" in media:
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if "artist_name" in media["metadata"]:
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artist_name = media["metadata"]["artist_name"]
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if isinstance(artist_name, str):
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annotation += ',artist="%s"' % (artist_name.replace('"', '\\"'))
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if "track_title" in media["metadata"]:
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track_title = media["metadata"]["track_title"]
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if isinstance(track_title, str):
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annotation += ',title="%s"' % (track_title.replace('"', '\\"'))
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annotation += ":" + filename
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return annotation
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class TelnetLiquidsoap:
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def __init__(self, telnet_lock, ls_host, ls_port, queues):
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self.telnet_lock = telnet_lock
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self.ls_host = ls_host
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self.ls_port = ls_port
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self.queues = queues
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self.current_prebuffering_stream_id = None
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def __connect(self):
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return telnetlib.Telnet(self.ls_host, self.ls_port)
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def __is_empty(self, queue_id):
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return True
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connection = self.__connect()
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msg = "%s.queue\nexit\n" % queue_id
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connection.write(msg.encode("utf-8"))
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output = connection.read_all().decode("utf-8").splitlines()
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if len(output) == 3:
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return len(output[0]) == 0
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else:
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raise Exception("Unexpected list length returned: %s" % output)
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@ls_timeout
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def queue_clear_all(self):
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try:
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self.telnet_lock.acquire()
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connection = self.__connect()
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for i in self.queues:
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msg = "queues.%s_skip\n" % i
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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except Exception:
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raise
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def queue_remove(self, queue_id):
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try:
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self.telnet_lock.acquire()
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connection = self.__connect()
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msg = "queues.%s_skip\n" % queue_id
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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except Exception:
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raise
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def queue_push(self, queue_id, media_item):
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try:
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self.telnet_lock.acquire()
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if not self.__is_empty(queue_id):
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raise QueueNotEmptyException()
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connection = self.__connect()
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annotation = create_liquidsoap_annotation(media_item)
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msg = f"{queue_id}.push {annotation}\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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show_name = media_item["show_name"]
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msg = "vars.show_name %s\n" % show_name
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connection.write(msg.encode("utf-8"))
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logger.debug(msg)
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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except Exception:
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raise
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def stop_web_stream_buffer(self):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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# dynamic_source.stop http://87.230.101.24:80/top100station.mp3
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msg = "http.stop\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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msg = "dynamic_source.id -1\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def stop_web_stream_output(self):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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# dynamic_source.stop http://87.230.101.24:80/top100station.mp3
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msg = "dynamic_source.output_stop\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def start_web_stream(self, media_item):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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# TODO: DO we need this?
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msg = "streams.scheduled_play_start\n"
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connection.write(msg.encode("utf-8"))
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msg = "dynamic_source.output_start\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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self.current_prebuffering_stream_id = None
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def start_web_stream_buffer(self, media_item):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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msg = "dynamic_source.id %s\n" % media_item["row_id"]
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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msg = "http.restart %s\n" % media_item["uri"]
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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logger.debug(connection.read_all().decode("utf-8"))
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self.current_prebuffering_stream_id = media_item["row_id"]
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def get_current_stream_id(self):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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msg = "dynamic_source.get_id\n"
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logger.debug(msg)
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connection.write(msg.encode("utf-8"))
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connection.write(b"exit\n")
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stream_id = connection.read_all().decode("utf-8").splitlines()[0]
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logger.debug("stream_id: %s" % stream_id)
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return stream_id
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def disconnect_source(self, sourcename):
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logger.debug("Disconnecting source: %s", sourcename)
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command = ""
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if sourcename == "master_dj":
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command += "master_harbor.stop\n"
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elif sourcename == "live_dj":
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command += "live_dj_harbor.stop\n"
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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logger.info(command)
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connection.write(command.encode("utf-8"))
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connection.write(b"exit\n")
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connection.read_all().decode("utf-8")
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except Exception:
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def telnet_send(self, commands):
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try:
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self.telnet_lock.acquire()
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connection = telnetlib.Telnet(self.ls_host, self.ls_port)
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for line in commands:
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logger.info(line)
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if type(line) is str:
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line = line.encode("utf-8")
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connection.write(line)
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connection.write(b"exit\n")
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connection.read_all().decode("utf-8")
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except Exception as exception:
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logger.error(str(exception))
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logger.error(traceback.format_exc())
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finally:
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self.telnet_lock.release()
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def switch_source(self, sourcename, status):
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logger.debug('Switching source: %s to "%s" status', sourcename, status)
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command = "streams."
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if sourcename == "master_dj":
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command += "master_dj_"
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elif sourcename == "live_dj":
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command += "live_dj_"
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elif sourcename == "scheduled_play":
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command += "scheduled_play_"
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if status == "on":
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command += "start\n"
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else:
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command += "stop\n"
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self.telnet_send([command])
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class DummyTelnetLiquidsoap:
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def __init__(self, telnet_lock):
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self.telnet_lock = telnet_lock
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self.liquidsoap_mock_queues = {}
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for index in range(4):
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self.liquidsoap_mock_queues["s" + str(index)] = []
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@ls_timeout
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def queue_push(self, queue_id, media_item):
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try:
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self.telnet_lock.acquire()
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logger.info(f"Pushing {media_item} to queue {queue_id}")
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from datetime import datetime
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print(f"Time now: {datetime.utcnow():s}")
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annotation = create_liquidsoap_annotation(media_item)
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self.liquidsoap_mock_queues[queue_id].append(annotation)
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except Exception:
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raise
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finally:
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self.telnet_lock.release()
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@ls_timeout
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def queue_remove(self, queue_id):
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try:
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self.telnet_lock.acquire()
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logger.info("Purging queue %s" % queue_id)
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from datetime import datetime
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print(f"Time now: {datetime.utcnow():s}")
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except Exception:
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raise
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finally:
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self.telnet_lock.release()
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class QueueNotEmptyException(Exception):
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pass
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