122 lines
4.2 KiB
Python
122 lines
4.2 KiB
Python
import logging
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from typing import List, Optional
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from ..liquidsoap.client import LiquidsoapClient
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from .events import FileEvent, WebStreamEvent
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logger = logging.getLogger(__name__)
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def create_liquidsoap_annotation(file_event: FileEvent) -> str:
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# We need liq_start_next value in the annotate. That is the value that controls
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# overlap duration of crossfade.
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annotations = {
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"media_id": file_event.id,
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"schedule_table_id": file_event.row_id,
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"liq_start_next": "0",
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"liq_fade_in": file_event.fade_in / 1000,
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"liq_fade_out": file_event.fade_out / 1000,
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"liq_cue_in": file_event.cue_in,
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"liq_cue_out": file_event.cue_out,
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}
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if file_event.replay_gain is not None:
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annotations["replay_gain"] = f"{file_event.replay_gain} dB"
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# Override the the artist/title that Liquidsoap extracts from a file's metadata with
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# 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 file_event.artist_name:
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annotations["artist"] = file_event.artist_name.replace('"', '\\"')
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if file_event.track_title:
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annotations["title"] = file_event.track_title.replace('"', '\\"')
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annotations_str = ",".join(f'{key}="{value}"' for key, value in annotations.items())
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return "annotate:" + annotations_str + ":" + str(file_event.local_filepath)
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class TelnetLiquidsoap:
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current_prebuffering_stream_id: Optional[int] = None
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def __init__(
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self,
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liq_client: LiquidsoapClient,
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queues: List[int],
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):
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self.liq_client = liq_client
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self.queues = queues
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def queue_clear_all(self):
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try:
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self.liq_client.queues_remove(*self.queues)
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except OSError as exception:
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logger.exception(exception)
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def queue_remove(self, queue_id: int):
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try:
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self.liq_client.queues_remove(queue_id)
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except OSError as exception:
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logger.exception(exception)
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def queue_push(self, queue_id: int, file_event: FileEvent):
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try:
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annotation = create_liquidsoap_annotation(file_event)
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self.liq_client.queue_push(queue_id, annotation, file_event.show_name)
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except OSError as exception:
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logger.exception(exception)
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def stop_web_stream_buffer(self):
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try:
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self.liq_client.web_stream_stop_buffer()
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except OSError as exception:
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logger.exception(exception)
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def stop_web_stream_output(self):
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try:
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self.liq_client.web_stream_stop()
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except OSError as exception:
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logger.exception(exception)
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def start_web_stream(self):
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try:
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self.liq_client.web_stream_start()
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self.current_prebuffering_stream_id = None
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except OSError as exception:
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logger.exception(exception)
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def start_web_stream_buffer(self, event: WebStreamEvent):
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try:
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self.liq_client.web_stream_start_buffer(event.row_id, event.uri)
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self.current_prebuffering_stream_id = event.row_id
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except OSError as exception:
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logger.exception(exception)
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def get_current_stream_id(self) -> str:
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try:
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return self.liq_client.web_stream_get_id()
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except OSError as exception:
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logger.exception(exception)
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return "-1"
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def disconnect_source(self, sourcename):
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if sourcename not in ("master_dj", "live_dj"):
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raise ValueError(f"invalid source name: {sourcename}")
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try:
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logger.debug("Disconnecting source: %s", sourcename)
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self.liq_client.source_disconnect(sourcename)
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except OSError as exception:
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logger.exception(exception)
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def switch_source(self, sourcename, status):
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if sourcename not in ("master_dj", "live_dj", "scheduled_play"):
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raise ValueError(f"invalid source name: {sourcename}")
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try:
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logger.debug('Switching source: %s to "%s" status', sourcename, status)
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self.liq_client.source_switch_status(sourcename, status == "on")
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except OSError as exception:
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logger.exception(exception)
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