def channel_metadata(self, channel_number, rewind=0):
channel_number = int(channel_number)
rewind = int(rewind)
if channel_number not in self.sbe.sxm.lineup:
return self.file_not_found()
channel = self.sbe.sxm.lineup[channel_number]
channel_id = str(channel['channelKey'])
packet = next(self.sbe.sxm.packet_generator(channel_id, rewind))
metadata = None
for pes_packet in mpegutils.parse_transport_stream(packet):
if pes_packet['pid'] == 1024:
for es_packet in mpegutils.parse_packetized_elementary_stream(pes_packet['payload']):
new_meta = mpegutils.parse_sxm_metadata(es_packet['payload'])
if not metadata and new_meta:
metadata = new_meta
response = json.dumps({
'channel': channel,
'nowplaying': {
'artist': metadata[1],
'title': metadata[0],
'album': metadata[2],
},
}, sort_keys=True, indent=4).encode('utf-8')
self.send_standard_headers(len(response), {
'Content-type': 'application/json',
})
self.wfile.write(response)
def channel_metadata(self, channel_number, rewind=0):
channel_number = int(channel_number)
rewind = int(rewind)
if channel_number not in self.sbe.sxm.lineup:
return self.file_not_found()
channel = self.sbe.sxm.lineup[channel_number]
channel_id = str(channel['channelKey'])
packet = next(self.sbe.sxm.packet_generator(channel_id, rewind))
metadata = None
for pes_packet in mpegutils.parse_transport_stream(packet):
if pes_packet['pid'] == 1024:
for es_packet in mpegutils.parse_packetized_elementary_stream(
pes_packet['payload']):
new_meta = mpegutils.parse_sxm_metadata(
es_packet['payload'])
if not metadata and new_meta:
metadata = new_meta
response = json.dumps(
{
'channel': channel,
'nowplaying': {
'artist': metadata[1],
'title': metadata[0],
'album': metadata[2],
},
},
sort_keys=True,
indent=4).encode('utf-8')
self.send_standard_headers(len(response), {
'Content-type': 'application/json',
})
self.wfile.write(response)
def channel_stream(self, channel_number, rewind=0):
channel_number = int(channel_number)
rewind = int(rewind)
if channel_number not in self.sbe.sxm.lineup:
return self.file_not_found()
channel = self.sbe.sxm.lineup[channel_number]
url = 'http://{}:{}/'.format(self.sbe.config('hostname'), self.sbe.config('port'))
logging.info('Streaming: Channel #{} "{}" with rewind {}'.format(
channel_number,
channel['name'],
rewind))
self.protocol_version = 'ICY' # if we don't pretend to be shoutcast, doctors HATE us
self.send_response_only(200)
self.send_header('Content-type', 'audio/aacp')
self.send_header('icy-br', '64')
self.send_header('icy-name', channel['name'])
self.send_header('icy-genre', channel['genre'])
self.send_header('icy-url', url)
self.send_header('icy-metaint', '32768')
self.end_headers()
channel_id = str(channel['channelKey'])
track_title = ''
start_time = None
new_meta = False
audio = bytearray()
for ts_packet in self.sbe.sxm.packet_generator(channel_id, rewind):
pes_streams = collections.defaultdict(bytearray)
for pes_packet in mpegutils.parse_transport_stream(ts_packet):
if 'payload' in pes_packet:
pes_streams[pes_packet['pid']].extend(pes_packet['payload'])
for pid, pes_stream in pes_streams.items():
for es_packet in mpegutils.parse_packetized_elementary_stream(pes_stream):
if pid == 768:
audio.extend(es_packet['payload'])
elif pid == 1024:
metadata = mpegutils.parse_sxm_metadata(es_packet['payload'])
if metadata:
new_title = '{} - {}'.format(metadata[1], metadata[0])
if new_title != track_title:
logging.info("Now playing: " + new_title)
track_title = new_title
new_meta = True
if len(audio) >= 32768:
if new_meta:
meta_title = ("StreamTitle='" + track_title.replace("'", '') + "';").encode('utf-8')
meta_length = math.ceil(len(meta_title) / 16)
meta_buffer = bytes((meta_length,)) + meta_title + (b'\x00' * ((meta_length * 16) - len(meta_title)))
new_meta = False
logging.debug('Metadata: ' + repr(meta_buffer))
else:
meta_buffer = b'\x00'
audio_interval = audio[:32768]
del audio[:32768]
try:
self.wfile.write(audio_interval)
self.wfile.write(meta_buffer)
if start_time != None and time.time() - start_time < 4:
time.sleep(4 - (time.time() - start_time))
start_time = time.time()
except (ConnectionResetError, ConnectionAbortedError) as e:
logging.info('Connection dropped: ' + str(e))
return
def channel_stream(self, channel_number, rewind=0):
channel_number = int(channel_number)
rewind = int(rewind)
if channel_number not in self.sbe.sxm.lineup:
return self.file_not_found()
channel = self.sbe.sxm.lineup[channel_number]
url = 'http://{}:{}/'.format(self.sbe.config('hostname'),
self.sbe.config('port'))
logging.info('Streaming: Channel #{} "{}" with rewind {}'.format(
channel_number, channel['name'], rewind))
self.protocol_version = 'ICY' # if we don't pretend to be shoutcast, doctors HATE us
self.send_response_only(200)
self.send_header('Content-type', 'audio/aacp')
self.send_header('icy-br', '64')
self.send_header('icy-name', channel['name'])
self.send_header('icy-genre', channel['genre'])
self.send_header('icy-url', url)
self.send_header('icy-metaint', '32768')
self.end_headers()
channel_id = str(channel['channelKey'])
track_title = ''
start_time = None
new_meta = False
audio = bytearray()
for ts_packet in self.sbe.sxm.packet_generator(channel_id, rewind):
pes_streams = collections.defaultdict(bytearray)
for pes_packet in mpegutils.parse_transport_stream(ts_packet):
if 'payload' in pes_packet:
pes_streams[pes_packet['pid']].extend(
pes_packet['payload'])
for pid, pes_stream in pes_streams.items():
for es_packet in mpegutils.parse_packetized_elementary_stream(
pes_stream):
if pid == 768:
audio.extend(es_packet['payload'])
elif pid == 1024:
metadata = mpegutils.parse_sxm_metadata(
es_packet['payload'])
if metadata:
new_title = '{} - {}'.format(
metadata[1], metadata[0])
if new_title != track_title:
logging.info("Now playing: " + new_title)
track_title = new_title
new_meta = True
if len(audio) >= 32768:
if new_meta:
meta_title = ("StreamTitle='" +
track_title.replace("'", '') +
"';").encode('utf-8')
meta_length = math.ceil(len(meta_title) / 16)
meta_buffer = bytes(
(meta_length, )) + meta_title + (b'\x00' * (
(meta_length * 16) - len(meta_title)))
new_meta = False
logging.debug('Metadata: ' + repr(meta_buffer))
else:
meta_buffer = b'\x00'
audio_interval = audio[:32768]
del audio[:32768]
try:
self.wfile.write(audio_interval)
self.wfile.write(meta_buffer)
if start_time != None and time.time(
) - start_time < 4:
time.sleep(4 - (time.time() - start_time))
start_time = time.time()
except (ConnectionResetError,
ConnectionAbortedError) as e:
logging.info('Connection dropped: ' + str(e))
return
