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orchestra.py
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orchestra.py
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import time
import subprocess
from tr_log_reader import TrLogReader
import random
import sys
import os
import re
from osc_receiver import OscReceiver
import threading
import sched
from logger import logger
from osc_sender import OscSender
from interpret import Interpreter
from stopwatch import Stopwatch
from ssr.ssr_control import SsrControl
from space import Space
from predecode import Predecoder
from config import DOWNLOAD_LOCATION
import socket
class VisualizerConnector:
remote_matcher = re.compile('^remote:(.*)$')
shell_matcher = re.compile('^(shell:)?(.*)$')
def __init__(self, spec, server):
self.server = server
remote_match = self.remote_matcher.match(spec)
shell_match = self.shell_matcher.match(spec)
if remote_match:
self.host = remote_match.group(1)
elif shell_match:
self.host = self.server.host
command_line = shell_match.group(2)
self._spawn_visualizer(command_line)
else:
raise Exception("failed to parse visualizer spec '%s'" % spec)
self.informed_about_torrent = False
def _spawn_visualizer(self, command_line):
command_line_with_port = "%s -port %d" % (command_line, self.server.port)
subprocess.Popen(command_line_with_port, shell=True, stdin=None)
def connect_to(self, port):
self._sender = OscSender(
host=self.host,
port=port,
log_filename=self.server.options.osc_log)
def send(self, *args):
self._sender.send(*args)
class Server(OscReceiver):
@staticmethod
def add_parser_arguments(parser):
parser.add_argument("--visualizer", type=str, action="append")
parser.add_argument("-port", type=int)
parser.add_argument("--osc-log", dest="osc_log")
def __init__(self, options):
self.options = options
self.visualizers = []
self._orchestra = None
if len(options.visualizer) > 0:
self._setup_osc()
self._save_port_to_disk()
for visualizer_spec in options.visualizer:
visualizer = VisualizerConnector(visualizer_spec, self)
self.visualizers.append(visualizer)
self._wait_for_visualizers_to_register()
def _setup_osc(self):
self.host = socket.gethostbyname(socket.gethostname())
self._orchestra_queue = []
OscReceiver.__init__(self, port=self.options.port)
self.add_method("/register", "i", self._handle_register)
self.add_method("/visualizing", "i", self._handle, "_handle_visualizing_message")
self.add_method("/set_listener_position", "ff", self._handle, "_handle_set_listener_position")
self.add_method("/set_listener_orientation", "f", self._handle, "_handle_set_listener_orientation")
self.add_method("/place_segment", "ifff", self._handle, "_handle_place_segment")
self.add_method("/enable_smooth_movement", "", self._handle, "_handle_enable_smooth_movement")
self.add_method("/start_segment_movement_from_peer", "if", self._handle, "_handle_start_segment_movement_from_peer")
self.start()
self._num_registered_visualizers = 0
server_thread = threading.Thread(target=self._serve_osc)
server_thread.daemon = True
server_thread.start()
def _save_port_to_disk(self):
f = open("server_port.txt", "w")
print >>f, self.port
f.close()
def _serve_osc(self):
while True:
self.serve()
time.sleep(0.01)
def _wait_for_visualizers_to_register(self):
print "waiting for %s visualizer(s) to register at %s:%s" % (
len(self.visualizers), self.host, self.port)
while self._num_registered_visualizers < len(self.visualizers):
time.sleep(0.1)
def set_orchestra(self, orchestra):
self._orchestra = orchestra
orchestra.server = self
orchestra.visualizers = self.visualizers
for args in self._orchestra_queue:
self._dispatch(*args)
self._orchestra_queue = []
def _handle_register(self, path, args, types, src, data):
print "visualizer registered"
visualizer_port = args[0]
self.visualizers[self._num_registered_visualizers].connect_to(visualizer_port)
self._num_registered_visualizers += 1
def _handle(self, *args):
if self._orchestra:
self._dispatch(*args)
else:
self._orchestra_queue.append(args)
def _dispatch(self, path, args, types, src, method_name):
user_data = None
getattr(self._orchestra, method_name)(path, args, types, src, user_data)
def shutdown(self):
self._tell_visualizers("/shutdown")
def _tell_visualizers(self, *args):
for visualizer in self.visualizers:
visualizer.send(*args)
class Player:
def __init__(self, orchestra, _id):
self.orchestra = orchestra
self.id = _id
self.enabled = True
self._previous_chunk_time = None
self.spatial_position = orchestra.space.new_peer()
self.trajectory = orchestra.space.parabolic_trajectory_to_listener(
self.spatial_position.bearing)
def visualize(self, chunk):
self.orchestra.visualize_chunk(chunk, self)
def play(self, segment, pan):
segment["pan"] = pan
self.interpret_sonically(segment)
self.orchestra.highlight_segment(segment)
def _bytecount_to_secs(self, byte_count, file_info):
duration_secs = file_info["duration"]
file_num_bytes = file_info["length"]
return duration_secs * byte_count / file_num_bytes
class WavPlayer(Player):
def interpret_sonically(self, segment):
file_info = self.orchestra.tr_log.files[segment["filenum"]]
filename = file_info["decoded_name"]
start_time_in_file = self._bytecount_to_secs(segment["begin"]-file_info["offset"], file_info)
end_time_in_file = self._bytecount_to_secs(segment["end"]-file_info["offset"], file_info)
logger.debug("playing %s at position %fs with duration %fs" % (
filename, start_time_in_file, segment["duration"]))
segment["start_time_in_file"] = start_time_in_file
segment["end_time_in_file"] = end_time_in_file
self.orchestra.play_segment(segment, self)
return True
class Orchestra:
SAMPLE_RATE = 44100
PLAYABLE_FORMATS = ['mp3', 'flac', 'wav', 'm4b']
JACK = "jack"
SSR = "ssr"
@staticmethod
def add_parser_arguments(parser):
parser.add_argument("--rt", action="store_true", dest="realtime")
parser.add_argument("-t", "--torrent", dest="torrentname", default="")
parser.add_argument("-z", "--timefactor", dest="timefactor", type=float, default=1)
parser.add_argument("--start", dest="start_time", type=float, default=0)
parser.add_argument("-q", "--quiet", action="store_true", dest="quiet")
parser.add_argument("--pretend-sequential", action="store_true", dest="pretend_sequential")
parser.add_argument("--gui", action="store_true", dest="gui_enabled")
parser.add_argument("--predecode", action="store_true", dest="predecode", default=True)
parser.add_argument("--file-location", dest="file_location", default=DOWNLOAD_LOCATION)
parser.add_argument("--fast-forward", action="store_true", dest="ff")
parser.add_argument("--fast-forward-to-start", action="store_true", dest="ff_to_start")
parser.add_argument("--quit-at-end", action="store_true", dest="quit_at_end")
parser.add_argument("--loop", dest="loop", action="store_true")
parser.add_argument("--max-passivity", dest="max_passivity", type=float)
parser.add_argument("--max-pause-within-segment", dest="max_pause_within_segment", type=float)
parser.add_argument("--looped-duration", dest="looped_duration", type=float)
parser.add_argument("-o", "--output", dest="output", type=str, default=Orchestra.JACK)
parser.add_argument("--include-non-playable", action="store_true")
parser.add_argument("-f", "--file", dest="selected_files", type=int, nargs="+")
parser.add_argument("--no-synth", action="store_true")
parser.add_argument("--locate-peers", action="store_true")
_extension_re = re.compile('\.(\w+)$')
def __init__(self, sessiondir, tr_log, options):
self.options = options
self.sessiondir = sessiondir
self.tr_log = tr_log
self.realtime = options.realtime
self.timefactor = options.timefactor
self.quiet = options.quiet
self.predecode = options.predecode
self.file_location = options.file_location
self._loop = options.loop
self._max_passivity = options.max_passivity
self.looped_duration = options.looped_duration
self.output = options.output
self.include_non_playable = options.include_non_playable
if options.locate_peers:
import geo.ip_locator
self._peer_location = {}
ip_locator = geo.ip_locator.IpLocator()
for peeraddr in tr_log.peers:
self._peer_location[peeraddr] = ip_locator.locate(peeraddr)
if options.predecode:
predecoder = Predecoder(tr_log, options.file_location, self.SAMPLE_RATE)
predecoder.decode()
if options.selected_files:
tr_log.select_files(options.selected_files)
self.playback_enabled = True
self.fast_forwarding = False
self._log_time_for_last_handled_event = 0
self.gui = None
self._check_which_files_are_audio()
if options.no_synth:
self.synth = None
else:
from synth_controller import SynthController
self.synth = SynthController()
self._create_players()
self._prepare_playable_files()
self.stopwatch = Stopwatch()
self.playable_chunks = self._filter_playable_chunks(tr_log.chunks)
if self.include_non_playable:
self.chunks = tr_log.chunks
self._num_selected_files = len(self.tr_log.files)
else:
self.chunks = self.playable_chunks
self._num_selected_files = self._num_playable_files
logger.debug("total num chunks: %s" % len(tr_log.chunks))
logger.debug("num playable chunks: %s" % len(self.playable_chunks))
logger.debug("num selected chunks: %s" % len(self.chunks))
self._interpret_chunks_to_score(options.max_pause_within_segment)
self._chunks_by_id = {}
self.segments_by_id = {}
self._playing = False
self._quitting = False
self.space = Space()
if options.ff_to_start:
self._ff_to_time = options.start_time
self.set_time_cursor(0)
else:
self._ff_to_time = None
self.set_time_cursor(options.start_time)
self.scheduler = sched.scheduler(time.time, time.sleep)
self._run_scheduler_thread()
if self.output == self.SSR:
self.ssr = SsrControl()
self._warned_about_max_sources = False
else:
self.ssr = None
def _interpret_chunks_to_score(self, max_pause_within_segment):
self.score = Interpreter(max_pause_within_segment).interpret(self.playable_chunks, self.tr_log.files)
if self._max_passivity:
self._reduce_max_passivity_in_score()
for segment in self.score:
segment["duration"] /= self.timefactor
def _reduce_max_passivity_in_score(self):
previous_onset = 0
reduced_time = 0
for i in range(len(self.score)):
if (self.score[i]["onset"] - reduced_time - previous_onset) > self._max_passivity:
reduced_time += self.score[i]["onset"] - reduced_time - previous_onset - self._max_passivity
self.score[i]["onset"] -= reduced_time
previous_onset = self.score[i]["onset"]
def _filter_playable_chunks(self, chunks):
return filter(lambda chunk: (self._chunk_is_playable(chunk)),
chunks)
def _chunk_is_playable(self, chunk):
file_info = self.tr_log.files[chunk["filenum"]]
return file_info["playable_file_index"] != -1
def _run_scheduler_thread(self):
self._scheduler_thread = threading.Thread(target=self._process_scheduled_events)
self._scheduler_thread.daemon = True
self._scheduler_thread.start()
def _process_scheduled_events(self):
while not self._quitting:
self.scheduler.run()
time.sleep(0.01)
def _handle_visualizing_message(self, path, args, types, src, data):
segment_id = args[0]
segment = self.segments_by_id[segment_id]
logger.debug("visualizing segment %s" % segment)
if self.output == self.SSR:
if segment["sound_source_id"]:
channel = segment["sound_source_id"] - 1
self._ask_synth_to_play_segment(segment, channel=channel, pan=None)
else:
player = self.get_player_for_segment(segment)
self._ask_synth_to_play_segment(segment, channel=0, pan=player.spatial_position.pan)
def _ask_synth_to_play_segment(self, segment, channel, pan):
if self.synth:
logger.debug("asking synth to play %s" % segment)
file_info = self.tr_log.files[segment["filenum"]]
self.synth.play_segment(
segment["id"],
segment["filenum"],
segment["start_time_in_file"] / file_info["duration"],
segment["end_time_in_file"] / file_info["duration"],
segment["duration"],
self.looped_duration,
channel,
pan)
self.scheduler.enter(
segment["playback_duration"], 1,
self.stopped_playing, [segment])
def _check_which_files_are_audio(self):
for file_info in self.tr_log.files:
file_info["is_audio"] = self._has_audio_extension(file_info["name"])
@staticmethod
def _has_audio_extension(filename):
return Orchestra._extension(filename) in Orchestra.PLAYABLE_FORMATS
@staticmethod
def _extension(filename):
m = Orchestra._extension_re.search(filename)
if m:
return m.group(1).lower()
def _create_players(self):
self._player_class = WavPlayer
self.players = []
self._player_for_peer = dict()
def _prepare_playable_files(self):
if self.predecode:
self._get_wav_files_info()
self._load_sounds()
else:
raise Exception("playing wav without precoding is not supported")
def _load_sounds(self):
if self.synth:
print "loading sounds"
for filenum in range(len(self.tr_log.files)):
file_info = self.tr_log.files[filenum]
if file_info["playable_file_index"] != -1:
logger.debug("load_sound(%s)" % file_info["decoded_name"])
result = self.synth.load_sound(filenum, file_info["decoded_name"])
logger.debug("result: %s" % result)
print "OK"
def _get_wav_files_info(self):
playable_file_index = 0
for filenum in range(len(self.tr_log.files)):
file_info = self.tr_log.files[filenum]
file_info["playable_file_index"] = -1
if "decoded_name" in file_info:
file_info["duration"] = self._get_file_duration(file_info)
if file_info["duration"] > 0:
file_info["num_channels"] = self._get_num_channels(file_info)
file_info["playable_file_index"] = playable_file_index
logger.debug("duration for %r: %r\n" %
(file_info["name"], file_info["duration"]))
playable_file_index += 1
if self.include_non_playable:
file_info["index"] = filenum
else:
file_info["index"] = file_info["playable_file_index"]
self._num_playable_files = playable_file_index
def _get_file_duration(self, file_info):
if "decoded_name" in file_info:
cmd = 'soxi -D "%s"' % file_info["decoded_name"]
try:
stdoutdata, stderrdata = subprocess.Popen(
cmd, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
return float(stdoutdata)
except:
logger.debug("failed to get duration for %s" % file_info["decoded_name"])
return 0
def _get_num_channels(self, file_info):
if "decoded_name" in file_info:
cmd = 'soxi -c "%s"' % file_info["decoded_name"]
stdoutdata, stderrdata = subprocess.Popen(
cmd, shell=True, stdout=subprocess.PIPE).communicate()
return int(stdoutdata)
def get_current_log_time(self):
if self.fast_forwarding:
return self._log_time_for_last_handled_event
else:
return self.log_time_played_from + self.stopwatch.get_elapsed_time() * self.timefactor
def play_non_realtime(self, quit_on_end=False):
logger.debug("entering play_non_realtime")
if self._loop:
while True:
self._play_until_end()
self.set_time_cursor(0)
else:
self._play_until_end()
if quit_on_end:
self._quitting = True
logger.debug("leaving play_non_realtime")
def _play_until_end(self):
logger.debug("entering _play_until_end")
self._playing = True
self.stopwatch.start()
no_more_events = False
while self._playing and not no_more_events:
event = self._get_next_chunk_or_segment()
if event:
self._handle_event(event)
else:
no_more_events = True
logger.debug("leaving _play_until_end")
def _get_next_chunk_or_segment(self):
logger.debug("chunk index = %d, segment index = %d" % (
self.current_chunk_index, self.current_segment_index))
chunk = self._get_next_chunk()
segment = self._get_next_segment()
logger.debug("next chunk: %s" % chunk)
logger.debug("next segment: %s" % segment)
if chunk and segment:
return self._choose_nearest_chunk_or_segment(chunk, segment)
elif chunk:
return {"type": "chunk",
"chunk": chunk}
elif segment:
return {"type": "segment",
"segment": segment}
else:
return None
def _get_next_chunk(self):
if self.current_chunk_index < len(self.chunks):
return self.chunks[self.current_chunk_index]
def _get_next_segment(self):
if len(self.score) == 0:
return None
elif self.current_segment_index < len(self.score):
return self.score[self.current_segment_index]
def _handle_event(self, event):
if event["type"] == "chunk":
self.handle_chunk(event["chunk"])
self.current_chunk_index += 1
elif event["type"] == "segment":
self.handle_segment(event["segment"])
self.current_segment_index += 1
else:
raise Exception("unexpected event %s" % event)
def _choose_nearest_chunk_or_segment(self, chunk, segment):
if chunk["t"] < segment["onset"]:
return {"type": "chunk",
"chunk": chunk}
else:
return {"type": "segment",
"segment": segment}
def stop(self):
if self.synth:
self.synth.stop_all()
self._playing = False
self.log_time_played_from = self.get_current_log_time()
self.stopwatch.stop()
def handle_segment(self, segment):
logger.debug("handling segment %s" % segment)
player = self.get_player_for_segment(segment)
if not player:
logger.debug("get_player_for_segment returned None - skipping playback")
if self.fast_forwarding:
self._stop_ff_if_necessary()
else:
now = self.get_current_log_time()
time_margin = segment["onset"] - now
logger.debug("time_margin=%f-%f=%f" % (segment["onset"], now, time_margin))
if not self.realtime and time_margin > 0:
sleep_time = time_margin
logger.debug("sleeping %f" % sleep_time)
time.sleep(sleep_time)
if player:
logger.debug("player.enabled=%s" % player.enabled)
if player and player.enabled:
player.play(segment, pan=0.5)
self._log_time_for_last_handled_event = segment["onset"]
def handle_chunk(self, chunk):
logger.debug("handling chunk %s" % chunk)
player = self.get_player_for_chunk(chunk)
logger.debug("get_player_for_chunk returned %s" % player)
if self.fast_forwarding:
self._stop_ff_if_necessary()
else:
now = self.get_current_log_time()
time_margin = chunk["t"] - now
logger.debug("time_margin=%f-%f=%f" % (chunk["t"], now, time_margin))
if not self.realtime and time_margin > 0:
sleep_time = time_margin
logger.debug("sleeping %f" % sleep_time)
time.sleep(sleep_time)
if player:
logger.debug("player.enabled=%s" % player.enabled)
if player and player.enabled:
player.visualize(chunk)
self._log_time_for_last_handled_event = chunk["t"]
def _stop_ff_if_necessary(self):
if self._ff_to_time is not None and \
self._log_time_for_last_handled_event >= self._ff_to_time:
self._ff_to_time = None
self.fast_forwarding = False
self.set_time_cursor(self.log_time_played_from)
def highlight_segment(self, segment):
if self.gui:
self.gui.highlight_segment(segment)
def visualize_chunk(self, chunk, player):
if len(self.visualizers) > 0:
file_info = self.tr_log.files[chunk["filenum"]]
self._chunks_by_id[chunk["id"]] = chunk
self._tell_visualizers(
"/chunk",
chunk["id"],
chunk["begin"],
chunk["end"] - chunk["begin"],
file_info["index"],
player.id,
chunk["t"])
def visualize_segment(self, segment, player):
if len(self.visualizers) > 0:
if self.ssr:
segment["sound_source_id"] = self.ssr.allocate_source()
if not segment["sound_source_id"] and not self._warned_about_max_sources:
print "WARNING: max sources exceeded, skipping segment playback (this warning will not be repeated)"
self._warned_about_max_sources = True
file_info = self.tr_log.files[segment["filenum"]]
self.segments_by_id[segment["id"]] = segment
self._tell_visualizers(
"/segment",
segment["id"],
segment["begin"],
segment["end"] - segment["begin"],
file_info["index"],
player.id,
segment["t"],
segment["playback_duration"])
else:
self._ask_synth_to_play_segment(segment, channel=0, pan=0.5)
def stopped_playing(self, segment):
logger.debug("stopped segment %s" % segment)
if self.gui:
self.gui.unhighlight_segment(segment)
if len(self.visualizers) > 0:
if self.ssr and segment["sound_source_id"]:
self.ssr.free_source(segment["sound_source_id"])
def play_segment(self, segment, player):
self.segments_by_id[segment["id"]] = segment
if self.looped_duration:
segment["playback_duration"] = self.looped_duration
else:
segment["playback_duration"] = segment["duration"]
self.visualize_segment(segment, player)
def _send_torrent_info_to_uninformed_visualizers(self):
for visualizer in self.visualizers:
if not visualizer.informed_about_torrent:
self._send_torrent_info_to_visualizer(visualizer)
def _send_torrent_info_to_visualizer(self, visualizer):
visualizer.send(
"/torrent",
self._num_selected_files,
self.tr_log.lastchunktime(),
self.tr_log.total_file_size(),
len(self.chunks),
len(self.score))
for filenum in range(len(self.tr_log.files)):
file_info = self.tr_log.files[filenum]
if self.include_non_playable or file_info["playable_file_index"] != -1:
visualizer.send(
"/file",
file_info["index"],
file_info["offset"],
file_info["length"])
visualizer.informed_about_torrent = True
def get_player_for_chunk(self, chunk):
try:
return chunk["player"]
except KeyError:
peer_player = self.get_player_for_peer(chunk["peeraddr"])
chunk["player"] = peer_player
return peer_player
def get_player_for_segment(self, segment):
try:
return segment["player"]
except KeyError:
peer_player = self.get_player_for_peer(segment["peeraddr"])
segment["player"] = peer_player
return peer_player
def get_player_for_peer(self, peeraddr):
peer_player = None
try:
peer_player = self._player_for_peer[peeraddr]
except KeyError:
peer_player = self._create_player(peeraddr)
self.players.append(peer_player)
self._player_for_peer[peeraddr] = peer_player
return peer_player
def _create_player(self, addr):
count = len(self.players)
logger.debug("creating player number %d" % count)
player = self._player_class(self, count)
if self.options.locate_peers and self._peer_location[addr] is not None:
x, y = self._peer_location[addr]
location_str = "%s,%s" % (x, y)
else:
location_str = ""
self._tell_visualizers(
"/peer", player.id, addr, player.spatial_position.bearing, location_str)
return player
def set_time_cursor(self, log_time):
assert not self.realtime
logger.debug("setting time cursor at %f" % log_time)
self.log_time_played_from = log_time
if self._playing:
self.stopwatch.restart()
self.current_chunk_index = self._get_current_chunk_index()
self.current_segment_index = self._get_current_segment_index()
def _get_current_chunk_index(self):
index = 0
next_to_last_index = len(self.chunks) - 2
while index < next_to_last_index:
if self.chunks[index+1]["t"] >= self.log_time_played_from:
return index
index += 1
return len(self.chunks) - 1
def _get_current_segment_index(self):
index = 0
next_to_last_index = len(self.score) - 2
while index < next_to_last_index:
if self.score[index+1]["onset"] >= self.log_time_played_from:
return index
index += 1
return len(self.score) - 1
def _handle_set_listener_position(self, path, args, types, src, data):
if self.ssr:
x, y = args
self.ssr.set_listener_position(x, y)
def _handle_set_listener_orientation(self, path, args, types, src, data):
if self.ssr:
orientation = args[0]
self.ssr.set_listener_orientation(orientation)
def _handle_place_segment(self, path, args, types, src, data):
segment_id, x, y, duration = args
if self.ssr:
segment = self.segments_by_id[segment_id]
sound_source_id = segment["sound_source_id"]
if sound_source_id is not None:
self.ssr.place_source(sound_source_id, x, y, duration)
else:
pan = self._spatial_position_to_stereo_pan(x, y)
if self.synth:
self.synth.pan(segment_id, pan)
def _handle_enable_smooth_movement(self, path, args, types, src, data):
if self.ssr:
self.ssr.enable_smooth_movement()
def _handle_start_segment_movement_from_peer(self, path, args, types, src, data):
segment_id, duration = args
if self.ssr:
segment = self.segments_by_id[segment_id]
sound_source_id = segment["sound_source_id"]
if sound_source_id is not None:
player = self.get_player_for_segment(segment)
self.ssr.start_source_movement(
sound_source_id, player.trajectory, duration)
def _spatial_position_to_stereo_pan(self, x, y):
# compare rectangular_visualizer.Visualizer.pan_segment
# NOTE: assumes default listener position and orientation!
return float(x) / 5 + 0.5
def reset(self):
self._free_sounds()
self._tell_visualizers("/reset")
def _free_sounds(self):
if self.synth:
for filenum in range(len(self.tr_log.files)):
file_info = self.tr_log.files[filenum]
if file_info["playable_file_index"] != -1:
self.synth.free_sound(filenum)
def _tell_visualizers(self, *args):
self._send_torrent_info_to_uninformed_visualizers()
self.server._tell_visualizers(*args)
def warn(logger, message):
logger.debug(message)
print >> sys.stderr, "WARNING: %s" % message