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CC-2590 : Make bitrate for liquidsoap and show-recorder adjustable from the config file

This commit is contained in:
Naomi Aro 2011-07-26 16:21:20 +02:00
parent 1366b159f2
commit f0bf7c00c3
4 changed files with 58 additions and 38 deletions
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6
python_apps/pypo/liquidsoap_scripts/liquidsoap.cfg
View File

@ -10,6 +10,10 @@ output_icecast_vorbis = true
output_icecast_mp3 = false
output_shoutcast = false
output_bitrate = 128
output_samplerate = 44100
output_stereo = true
###########################################
# Logging settings #
###########################################
@ -23,7 +27,7 @@ icecast_host = "127.0.0.1"
icecast_port = 8000
icecast_pass = "hackme"
# Icecast mountpoint names
# Icecast mountpoint names
mount_point_mp3 = "airtime.mp3"
mount_point_vorbis = "airtime.ogg"

10
python_apps/pypo/liquidsoap_scripts/ls_script.liq
View File

@ -57,7 +57,9 @@ if output_sound_device then
end
if output_icecast_mp3 then
ignore(output.icecast(%mp3,
#%mp3(bitrate=32, samplerate=22050, stereo=false)
ignore(output.icecast(%mp3(bitrate=output_bitrate, samplerate=output_samplerate, stereo=output_stereo),
host = icecast_host,
port = icecast_port,
password = icecast_pass,
@ -74,7 +76,7 @@ end
if output_icecast_vorbis then
if output_icecast_vorbis_metadata then
ignore(output.icecast(%vorbis,
ignore(output.icecast(%vorbis(bitrate=output_bitrate, samplerate=output_samplerate, stereo=output_stereo),
host = icecast_host,
port = icecast_port,
password = icecast_pass,
@ -91,7 +93,7 @@ if output_icecast_vorbis then
#remove metadata from ogg source and merge tracks to fix bug
#with vlc and mplayer disconnecting at the end of every track
s = add(normalize=false, [amplify(0.00001, noise()),s])
ignore(output.icecast(%vorbis,
ignore(output.icecast(%vorbis(bitrate=output_bitrate, samplerate=output_samplerate, stereo=output_stereo),
host = icecast_host,
port = icecast_port,
password = icecast_pass,
@ -108,7 +110,7 @@ if output_icecast_vorbis then
end
if output_shoutcast then
ignore(output.shoutcast(%mp3,
ignore(output.shoutcast(%mp3(bitrate=output_bitrate, samplerate=output_samplerate, stereo=output_stereo),
host = shoutcast_host,
port = shoutcast_port,
password = shoutcast_pass,

8
python_apps/show-recorder/recorder.cfg
View File

@ -16,3 +16,11 @@ rabbitmq_host = 'localhost'
rabbitmq_user = 'guest'
rabbitmq_password = 'guest'
############################################
# Recorded Audio settings #
############################################
record_bitrate = 128
record_samplerate = 44100
record_channels = 2
record_sample_size = 16

72
python_apps/show-recorder/recorder.py
View File

@ -61,15 +61,21 @@ class ShowRecorder(Thread):
self.show_name = show_name
self.logger = logging.getLogger('root')
self.p = None
def record_show(self):
length = str(self.filelength)+".0"
filename = self.start_time
filename = filename.replace(" ", "-")
filepath = "%s%s.%s" % (config["base_recorded_files"], filename, self.filetype)
command = "ecasound -i alsa -o %s -t:%s" % (filepath, length)
#-ge:0.1,0.1,0,-1
br = config["record_bitrate"]
sr = config["record_samplerate"]
c = config["record_channels"]
ss = config["record_sample_size"]
#-f:16,2,44100
#-b:256
command = "ecasound -f:%s,%s,%s -b:%s -i alsa -o %s -t:%s" % (ss, c, sr, br, filepath, length)
args = command.split(" ")
self.logger.info("starting record")
@ -80,26 +86,26 @@ class ShowRecorder(Thread):
#blocks at the following line until the child process
#quits
code = self.p.wait()
self.logger.info("finishing record, return code %s", self.p.returncode)
code = self.p.returncode
self.p = None
return code, filepath
def cancel_recording(self):
#add 3 second delay before actually cancelling the show. The reason
#for this is because it appears that ecasound starts 1 second later than
#it should, and therefore this method is sometimes incorrectly called 1
#it should, and therefore this method is sometimes incorrectly called 1
#second before the show ends.
#time.sleep(3)
#send signal interrupt (2)
self.logger.info("Show manually cancelled!")
if (self.p is not None):
self.p.kill()
#if self.p is defined, then the child process ecasound is recording
def is_recording(self):
return (self.p is not None)
@ -116,7 +122,7 @@ class ShowRecorder(Thread):
datagen, headers = multipart_encode({"file": open(filepath, "rb"), 'name': filename, 'show_instance': self.show_instance})
self.api_client.upload_recorded_show(datagen, headers)
def set_metadata_and_save(self, filepath):
try:
date = self.start_time
@ -145,9 +151,9 @@ class ShowRecorder(Thread):
if code == 0:
try:
self.logger.info("Preparing to upload %s" % filepath)
self.set_metadata_and_save(filepath)
self.upload_file(filepath)
os.remove(filepath)
except Exceptio, e:
@ -173,16 +179,16 @@ class CommandListener(Thread):
schedule_exchange = Exchange("airtime-show-recorder", "direct", durable=True, auto_delete=True)
schedule_queue = Queue("recorder-fetch", exchange=schedule_exchange, key="foo")
self.connection = BrokerConnection(config["rabbitmq_host"], config["rabbitmq_user"], config["rabbitmq_password"], "/")
channel = self.connection.channel()
channel = self.connection.channel()
consumer = Consumer(channel, schedule_queue)
consumer.register_callback(self.handle_message)
consumer.consume()
except Exception, e:
self.logger.error(e)
return False
return True
def handle_message(self, body, message):
# ACK the message to take it off the queue
message.ack()
@ -190,7 +196,7 @@ class CommandListener(Thread):
m = json.loads(message.body)
command = m['event_type']
self.logger.info("Handling command: " + command)
if(command == 'update_schedule'):
temp = m['shows']
if temp is not None:
@ -198,7 +204,7 @@ class CommandListener(Thread):
elif(command == 'cancel_recording'):
if self.sr.is_recording():
self.sr.cancel_recording()
def parse_shows(self, shows):
self.logger.info("Parsing show schedules...")
self.shows_to_record = {}
@ -208,30 +214,30 @@ class CommandListener(Thread):
time_delta = show_end - show_starts
self.shows_to_record[show[u'starts']] = [time_delta, show[u'instance_id'], show[u'name']]
delta = self.get_time_till_next_show()
# awake at least 5 seconds prior to the show start
self.time_till_next_show = delta - 5
self.logger.info(self.shows_to_record)
def get_time_till_next_show(self):
if len(self.shows_to_record) != 0:
tnow = datetime.datetime.now()
sorted_show_keys = sorted(self.shows_to_record.keys())
start_time = sorted_show_keys[0]
next_show = getDateTimeObj(start_time)
delta = next_show - tnow
out = delta.seconds
self.logger.debug("Next show %s", next_show)
self.logger.debug("Now %s", tnow)
self.logger.debug("Now %s", tnow)
else:
out = 3600
return out
def start_record(self):
if len(self.shows_to_record) != 0:
try:
@ -239,16 +245,16 @@ class CommandListener(Thread):
self.logger.debug("sleeping %s seconds until show", delta)
time.sleep(delta)
sorted_show_keys = sorted(self.shows_to_record.keys())
start_time = sorted_show_keys[0]
show_length = self.shows_to_record[start_time][0]
show_instance = self.shows_to_record[start_time][1]
show_name = self.shows_to_record[start_time][2]
self.sr = ShowRecorder(show_instance, show_name, show_length.seconds, start_time, filetype="mp3")
self.sr.start()
#remove show from shows to record.
del self.shows_to_record[start_time]
self.time_till_next_show = 3600
@ -256,7 +262,7 @@ class CommandListener(Thread):
self.logger.error(e)
else:
self.logger.debug("No recording scheduled...")
"""
Main loop of the thread:
Wait for schedule updates from RabbitMQ, but in case there arent any,
@ -269,7 +275,7 @@ class CommandListener(Thread):
time.sleep(5)
# Bootstrap: since we are just starting up, we need to grab the
# most recent schedule. After that we can just wait for updates.
# most recent schedule. After that we can just wait for updates.
try:
temp = self.api_client.get_shows_to_record()
if temp is not None:
@ -278,8 +284,8 @@ class CommandListener(Thread):
self.logger.info("Bootstrap complete: got initial copy of the schedule")
except Exception, e:
self.logger.error(e)
loops = 1
loops = 1
while True:
self.logger.info("Loop #%s", loops)
try:
@ -289,11 +295,11 @@ class CommandListener(Thread):
self.logger.info(e)
# start recording
self.start_record()
loops += 1
if __name__ == '__main__':
cl = CommandListener()
cl.start()