def _create_torrent(self):
if self.video_file_extension == 'MKV':
self.torrent = TorrentMKV(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
elif self.video_file_extension == 'MP4':
self.torrent = TorrentMP4(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
elif self.video_file_extension == 'AVI':
self.torrent = TorrentAVI(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
def _create_torrent(self):
if self.video_file_extension == 'MKV':
self.torrent = TorrentMKV(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
elif self.video_file_extension == 'MP4':
self.torrent = TorrentMP4(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
elif self.video_file_extension == 'AVI':
self.torrent = TorrentAVI(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
class TorrentManager():
DEFAULT_DOWN_RATE = 2 * 1024 * 1024 # If required bitrate cant be calculated, default to this download limit in bytes
torrent = None
torrenthandle = None
torrent_session = None
video_file = lt.file_entry()
def __init__(self):
self.header_available = False
self.num_total_pieces = 0
self.num_video_offset_pieces = 0
self.num_video_pieces = 0
self.video_file_extension = None
self.download_speed_limited = False
if lt.version != '0.16.16.0':
print 'Wrong version of libtorrent detected, please install version 0.16.16.0, you have', lt.version
import sys
sys.exit(-1)
self.download_directory = appdirs.dirs.user_cache_dir + '\\Download\\'
# TODO do not remove downloaded torrent but check it instead
import shutil
shutil.rmtree(self.download_directory, ignore_errors=True)
self.running = True
from cloudburst.media.player import Player
self.streamer = Player.instance()
def shutdown(self):
self.running = False
if self.torrent is not None:
self.torrent.shutdown()
def _disk_space_check(self): # TODO
pass
def start_torrent(self, seekpoint=0):
self.torrent.start(seekpoint)
def open_torrent(self, path, magnet=None):
if self.torrenthandle is not None:
print 'Another torrent is already in progress'
return
self.torrent_session = lt.session()
self.torrent_session.listen_on(6881, 6891)
# Allocation settings (these should be default but make sure they are correct)
settings = lt.session_settings()
settings.close_redundant_connections = False # This keeps peers connected
settings.disk_io_write_mode = lt.io_buffer_mode_t.enable_os_cache
settings.disk_io_read_mode = lt.io_buffer_mode_t.enable_os_cache
self.torrent_session.set_settings(settings)
e = None
torrentinfo = None
if magnet:
params = {"save_path": self.download_directory,"allocation": lt.storage_mode_t.storage_mode_sparse,}
self.torrenthandle = lt.add_magnet_uri(self.torrent_session, str(magnet), params)
torrentinfo = self.torrenthandle.get_torrent_info()
else:
e = lt.bdecode(open(path, 'rb').read())
torrentinfo = lt.torrent_info(e)
self.torrenthandle = self.torrent_session.add_torrent({'ti': torrentinfo, 'save_path': self.download_directory, 'storage_mode': lt.storage_mode_t.storage_mode_sparse})
self.video_file = self._find_video_file(torrentinfo.files())
# Disable all files, we do not want to download yet. Download starts when torrent.startTorrent() is called
# for n in range(0, torrentInfo.num_files()):
num_files_skipped = [0] * torrentinfo.num_files()
self.torrenthandle.prioritize_files(num_files_skipped)
# Print some torrent stats
print 'Torrent piece size:', torrentinfo.piece_size(0) / 1024, 'kB'
print 'Torrent total pieces:', torrentinfo.num_pieces()
print 'Torrent total files:', torrentinfo.num_files()
print 'Video file offset pieces:', self.num_video_offset_pieces
self.num_total_pieces = torrentinfo.num_pieces()
self._create_torrent()
# start alert thread
thread_alert = threading.Thread(target=self._thread_alert)
thread_alert.daemon = True
thread_alert.start()
return self.download_directory + self.video_file.path
# Instantiates the torrent object
def _create_torrent(self):
if self.video_file_extension == 'MKV':
self.torrent = TorrentMKV(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
elif self.video_file_extension == 'MP4':
self.torrent = TorrentMP4(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
elif self.video_file_extension == 'AVI':
self.torrent = TorrentAVI(self, self.torrenthandle, self.num_total_pieces, self.num_video_pieces, self.num_video_offset_pieces)
# Determine which file in the torrent is the video file. Currently based on size and is checked for extension.
def _find_video_file(self, filelist):
video_file = lt.file_entry()
video_file_index = None
# Currently it is presumed the largest file is the video file. This should be true most of the time.
for n in range(0, len(filelist)):
if filelist[n].size > video_file.size:
video_file = filelist[n]
video_file_index = n
for n in range(0, len(filelist)):
if not n == video_file_index: # dont skip the video file
self.torrenthandle.file_priority(n, 0)
piece_priorities = self.torrenthandle.piece_priorities()
# Count how many pieces are set to 0, these are all the skipped files
self.num_video_offset_pieces = 0
for n in range(0, len(piece_priorities)):
if piece_priorities[n] == 0:
self.num_video_offset_pieces += 1
else:
break
# Now determine how many pieces are in the video file. This is the total amount of pieces in the torrent miuns the pieces of the files before and after the video file
self.num_video_pieces = 0
for n in range(self.num_video_offset_pieces, len(piece_priorities)):
if piece_priorities[n] == 1:
self.num_video_pieces += 1
else:
break
# Additional check, make sure the file we want (video file) has one of these extensions: .mkv, .avi, .mp4
split_string = str.split(video_file.path, '.')
extension = split_string[len(split_string) - 1]
if not (extension == 'mkv' or extension == 'avi' or extension == 'mp4'):
print 'Video file has invalid file extension:', extension
import sys
sys.exit(-1) # TODO better way to exit, this doesnt work with CEF
self.video_file_extension = extension.upper()
print 'Torrent configured for file type:', self.video_file_extension
return video_file
# Enable the download limit # TODO base it on bitrate
def set_download_limit(self, limited):
# Set download speed limit (apparently needs to be set after the torrent adding)
self.download_speed_limited = limited
if limited:
video_file_size = float(self.video_file.size) # in bytes
video_file_length = float(self.streamer.get_video_length()) / 1000 # in s
if video_file_length > 0: # VLC may report -1 or 0 if it cant find the file length (seems to happen on AVI's)
speed = video_file_size / video_file_length
# add speed to be sure
speed *= 1.5
else: # incase of no known length, set it to a default of 2MBps
speed = self.DEFAULT_DOWN_RATE
self.torrent_session.set_download_rate_limit(int(speed))
print 'Download speed limit set to:', int(speed) / 1024, 'kB/s'
else:
print 'Disabled speed limit'
self.torrent_session.set_download_rate_limit(-1)
def _thread_alert(self): # Thread. Checks torrent alert messages (like piece ready) and processes them
text_piece = 'piece successful' # Libtorrent always reports this when a piece is succesful, with an int attached
while not self.torrenthandle.is_seed() and self.running:
if self.torrent_session.wait_for_alert(10) is not None: # None means no alert, 10ms timeout
alert = str(self.torrent_session.pop_alert())
if text_piece in alert: # So we extract the int from the text
alert_substring = alert.find(text_piece)
piecenumber = int(alert[alert_substring + len(text_piece):])
# And pass it on to the method that checks pieces
self.torrent.update_pieces(piecenumber) # TODO fix alert spam (has to do with setting deadline on pieces that are already in)
# print alert # Uncomment this to see all alerts
class TorrentManager():
DEFAULT_DOWN_RATE = 2 * 1024 * 1024 # If required bitrate cant be calculated, default to this download limit in bytes
torrent = None
torrenthandle = None
torrent_session = None
video_file = lt.file_entry()
def __init__(self):
self.header_available = False
self.num_total_pieces = 0
self.num_video_offset_pieces = 0
self.num_video_pieces = 0
self.video_file_extension = None
self.download_speed_limited = False
if lt.version != '0.16.16.0':
print 'Wrong version of libtorrent detected, please install version 0.16.16.0, you have', lt.version
import sys
sys.exit(-1)
self.download_directory = appdirs.dirs.user_cache_dir + '\\Download\\'
# TODO do not remove downloaded torrent but check it instead
import shutil
shutil.rmtree(self.download_directory, ignore_errors=True)
self.running = True
from cloudburst.media.player import Player
self.streamer = Player.instance()
def shutdown(self):
self.running = False
if self.torrent is not None:
self.torrent.shutdown()
def _disk_space_check(self): # TODO
pass
def start_torrent(self, seekpoint=0):
self.torrent.start(seekpoint)
def open_torrent(self, path, magnet=None):
if self.torrenthandle is not None:
print 'Another torrent is already in progress'
return
self.torrent_session = lt.session()
self.torrent_session.listen_on(6881, 6891)
# Allocation settings (these should be default but make sure they are correct)
settings = lt.session_settings()
settings.close_redundant_connections = False # This keeps peers connected
settings.disk_io_write_mode = lt.io_buffer_mode_t.enable_os_cache
settings.disk_io_read_mode = lt.io_buffer_mode_t.enable_os_cache
self.torrent_session.set_settings(settings)
e = None
torrentinfo = None
if magnet:
params = {
"save_path": self.download_directory,
"allocation": lt.storage_mode_t.storage_mode_sparse,
}
self.torrenthandle = lt.add_magnet_uri(self.torrent_session,
str(magnet), params)
torrentinfo = self.torrenthandle.get_torrent_info()
else:
e = lt.bdecode(open(path, 'rb').read())
torrentinfo = lt.torrent_info(e)
self.torrenthandle = self.torrent_session.add_torrent({
'ti':
torrentinfo,
'save_path':
self.download_directory,
'storage_mode':
lt.storage_mode_t.storage_mode_sparse
})
self.video_file = self._find_video_file(torrentinfo.files())
# Disable all files, we do not want to download yet. Download starts when torrent.startTorrent() is called
# for n in range(0, torrentInfo.num_files()):
num_files_skipped = [0] * torrentinfo.num_files()
self.torrenthandle.prioritize_files(num_files_skipped)
# Print some torrent stats
print 'Torrent piece size:', torrentinfo.piece_size(0) / 1024, 'kB'
print 'Torrent total pieces:', torrentinfo.num_pieces()
print 'Torrent total files:', torrentinfo.num_files()
print 'Video file offset pieces:', self.num_video_offset_pieces
self.num_total_pieces = torrentinfo.num_pieces()
self._create_torrent()
# start alert thread
thread_alert = threading.Thread(target=self._thread_alert)
thread_alert.daemon = True
thread_alert.start()
return self.download_directory + self.video_file.path
# Instantiates the torrent object
def _create_torrent(self):
if self.video_file_extension == 'MKV':
self.torrent = TorrentMKV(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
elif self.video_file_extension == 'MP4':
self.torrent = TorrentMP4(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
elif self.video_file_extension == 'AVI':
self.torrent = TorrentAVI(self, self.torrenthandle,
self.num_total_pieces,
self.num_video_pieces,
self.num_video_offset_pieces)
# Determine which file in the torrent is the video file. Currently based on size and is checked for extension.
def _find_video_file(self, filelist):
video_file = lt.file_entry()
video_file_index = None
# Currently it is presumed the largest file is the video file. This should be true most of the time.
for n in range(0, len(filelist)):
if filelist[n].size > video_file.size:
video_file = filelist[n]
video_file_index = n
for n in range(0, len(filelist)):
if not n == video_file_index: # dont skip the video file
self.torrenthandle.file_priority(n, 0)
piece_priorities = self.torrenthandle.piece_priorities()
# Count how many pieces are set to 0, these are all the skipped files
self.num_video_offset_pieces = 0
for n in range(0, len(piece_priorities)):
if piece_priorities[n] == 0:
self.num_video_offset_pieces += 1
else:
break
# Now determine how many pieces are in the video file. This is the total amount of pieces in the torrent miuns the pieces of the files before and after the video file
self.num_video_pieces = 0
for n in range(self.num_video_offset_pieces, len(piece_priorities)):
if piece_priorities[n] == 1:
self.num_video_pieces += 1
else:
break
# Additional check, make sure the file we want (video file) has one of these extensions: .mkv, .avi, .mp4
split_string = str.split(video_file.path, '.')
extension = split_string[len(split_string) - 1]
if not (extension == 'mkv' or extension == 'avi'
or extension == 'mp4'):
print 'Video file has invalid file extension:', extension
import sys
sys.exit(-1) # TODO better way to exit, this doesnt work with CEF
self.video_file_extension = extension.upper()
print 'Torrent configured for file type:', self.video_file_extension
return video_file
# Enable the download limit # TODO base it on bitrate
def set_download_limit(self, limited):
# Set download speed limit (apparently needs to be set after the torrent adding)
self.download_speed_limited = limited
if limited:
video_file_size = float(self.video_file.size) # in bytes
video_file_length = float(
self.streamer.get_video_length()) / 1000 # in s
if video_file_length > 0: # VLC may report -1 or 0 if it cant find the file length (seems to happen on AVI's)
speed = video_file_size / video_file_length
# add speed to be sure
speed *= 1.5
else: # incase of no known length, set it to a default of 2MBps
speed = self.DEFAULT_DOWN_RATE
self.torrent_session.set_download_rate_limit(int(speed))
print 'Download speed limit set to:', int(speed) / 1024, 'kB/s'
else:
print 'Disabled speed limit'
self.torrent_session.set_download_rate_limit(-1)
def _thread_alert(
self
): # Thread. Checks torrent alert messages (like piece ready) and processes them
text_piece = 'piece successful' # Libtorrent always reports this when a piece is succesful, with an int attached
while not self.torrenthandle.is_seed() and self.running:
if self.torrent_session.wait_for_alert(
10) is not None: # None means no alert, 10ms timeout
alert = str(self.torrent_session.pop_alert())
if text_piece in alert: # So we extract the int from the text
alert_substring = alert.find(text_piece)
piecenumber = int(alert[alert_substring +
len(text_piece):])
# And pass it on to the method that checks pieces
self.torrent.update_pieces(
piecenumber
) # TODO fix alert spam (has to do with setting deadline on pieces that are already in)
