mirror of
https://github.com/yt-dlp/yt-dlp
synced 2024-12-27 09:23:46 +01:00
454 lines
17 KiB
Python
454 lines
17 KiB
Python
from __future__ import division, unicode_literals
|
|
|
|
import os
|
|
import re
|
|
import time
|
|
import random
|
|
|
|
from ..utils import (
|
|
decodeArgument,
|
|
encodeFilename,
|
|
error_to_compat_str,
|
|
format_bytes,
|
|
shell_quote,
|
|
timeconvert,
|
|
timetuple_from_msec,
|
|
)
|
|
from ..minicurses import (
|
|
MultilineLogger,
|
|
MultilinePrinter,
|
|
QuietMultilinePrinter,
|
|
BreaklineStatusPrinter
|
|
)
|
|
|
|
|
|
class FileDownloader(object):
|
|
"""File Downloader class.
|
|
|
|
File downloader objects are the ones responsible of downloading the
|
|
actual video file and writing it to disk.
|
|
|
|
File downloaders accept a lot of parameters. In order not to saturate
|
|
the object constructor with arguments, it receives a dictionary of
|
|
options instead.
|
|
|
|
Available options:
|
|
|
|
verbose: Print additional info to stdout.
|
|
quiet: Do not print messages to stdout.
|
|
ratelimit: Download speed limit, in bytes/sec.
|
|
throttledratelimit: Assume the download is being throttled below this speed (bytes/sec)
|
|
retries: Number of times to retry for HTTP error 5xx
|
|
buffersize: Size of download buffer in bytes.
|
|
noresizebuffer: Do not automatically resize the download buffer.
|
|
continuedl: Try to continue downloads if possible.
|
|
noprogress: Do not print the progress bar.
|
|
nopart: Do not use temporary .part files.
|
|
updatetime: Use the Last-modified header to set output file timestamps.
|
|
test: Download only first bytes to test the downloader.
|
|
min_filesize: Skip files smaller than this size
|
|
max_filesize: Skip files larger than this size
|
|
xattr_set_filesize: Set ytdl.filesize user xattribute with expected size.
|
|
external_downloader_args: A dictionary of downloader keys (in lower case)
|
|
and a list of additional command-line arguments for the
|
|
executable. Use 'default' as the name for arguments to be
|
|
passed to all downloaders. For compatibility with youtube-dl,
|
|
a single list of args can also be used
|
|
hls_use_mpegts: Use the mpegts container for HLS videos.
|
|
http_chunk_size: Size of a chunk for chunk-based HTTP downloading. May be
|
|
useful for bypassing bandwidth throttling imposed by
|
|
a webserver (experimental)
|
|
progress_template: See YoutubeDL.py
|
|
|
|
Subclasses of this one must re-define the real_download method.
|
|
"""
|
|
|
|
_TEST_FILE_SIZE = 10241
|
|
params = None
|
|
|
|
def __init__(self, ydl, params):
|
|
"""Create a FileDownloader object with the given options."""
|
|
self.ydl = ydl
|
|
self._progress_hooks = []
|
|
self.params = params
|
|
self._prepare_multiline_status()
|
|
self.add_progress_hook(self.report_progress)
|
|
|
|
@staticmethod
|
|
def format_seconds(seconds):
|
|
time = timetuple_from_msec(seconds * 1000)
|
|
if time.hours > 99:
|
|
return '--:--:--'
|
|
if not time.hours:
|
|
return '%02d:%02d' % time[1:-1]
|
|
return '%02d:%02d:%02d' % time[:-1]
|
|
|
|
@staticmethod
|
|
def calc_percent(byte_counter, data_len):
|
|
if data_len is None:
|
|
return None
|
|
return float(byte_counter) / float(data_len) * 100.0
|
|
|
|
@staticmethod
|
|
def format_percent(percent):
|
|
if percent is None:
|
|
return '---.-%'
|
|
elif percent == 100:
|
|
return '100%'
|
|
return '%6s' % ('%3.1f%%' % percent)
|
|
|
|
@staticmethod
|
|
def calc_eta(start, now, total, current):
|
|
if total is None:
|
|
return None
|
|
if now is None:
|
|
now = time.time()
|
|
dif = now - start
|
|
if current == 0 or dif < 0.001: # One millisecond
|
|
return None
|
|
rate = float(current) / dif
|
|
return int((float(total) - float(current)) / rate)
|
|
|
|
@staticmethod
|
|
def format_eta(eta):
|
|
if eta is None:
|
|
return '--:--'
|
|
return FileDownloader.format_seconds(eta)
|
|
|
|
@staticmethod
|
|
def calc_speed(start, now, bytes):
|
|
dif = now - start
|
|
if bytes == 0 or dif < 0.001: # One millisecond
|
|
return None
|
|
return float(bytes) / dif
|
|
|
|
@staticmethod
|
|
def format_speed(speed):
|
|
if speed is None:
|
|
return '%10s' % '---b/s'
|
|
return '%10s' % ('%s/s' % format_bytes(speed))
|
|
|
|
@staticmethod
|
|
def format_retries(retries):
|
|
return 'inf' if retries == float('inf') else '%.0f' % retries
|
|
|
|
@staticmethod
|
|
def best_block_size(elapsed_time, bytes):
|
|
new_min = max(bytes / 2.0, 1.0)
|
|
new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
|
|
if elapsed_time < 0.001:
|
|
return int(new_max)
|
|
rate = bytes / elapsed_time
|
|
if rate > new_max:
|
|
return int(new_max)
|
|
if rate < new_min:
|
|
return int(new_min)
|
|
return int(rate)
|
|
|
|
@staticmethod
|
|
def parse_bytes(bytestr):
|
|
"""Parse a string indicating a byte quantity into an integer."""
|
|
matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr)
|
|
if matchobj is None:
|
|
return None
|
|
number = float(matchobj.group(1))
|
|
multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
|
|
return int(round(number * multiplier))
|
|
|
|
def to_screen(self, *args, **kargs):
|
|
self.ydl.to_stdout(*args, quiet=self.params.get('quiet'), **kargs)
|
|
|
|
def to_stderr(self, message):
|
|
self.ydl.to_stderr(message)
|
|
|
|
def to_console_title(self, message):
|
|
self.ydl.to_console_title(message)
|
|
|
|
def trouble(self, *args, **kargs):
|
|
self.ydl.trouble(*args, **kargs)
|
|
|
|
def report_warning(self, *args, **kargs):
|
|
self.ydl.report_warning(*args, **kargs)
|
|
|
|
def report_error(self, *args, **kargs):
|
|
self.ydl.report_error(*args, **kargs)
|
|
|
|
def write_debug(self, *args, **kargs):
|
|
self.ydl.write_debug(*args, **kargs)
|
|
|
|
def slow_down(self, start_time, now, byte_counter):
|
|
"""Sleep if the download speed is over the rate limit."""
|
|
rate_limit = self.params.get('ratelimit')
|
|
if rate_limit is None or byte_counter == 0:
|
|
return
|
|
if now is None:
|
|
now = time.time()
|
|
elapsed = now - start_time
|
|
if elapsed <= 0.0:
|
|
return
|
|
speed = float(byte_counter) / elapsed
|
|
if speed > rate_limit:
|
|
sleep_time = float(byte_counter) / rate_limit - elapsed
|
|
if sleep_time > 0:
|
|
time.sleep(sleep_time)
|
|
|
|
def temp_name(self, filename):
|
|
"""Returns a temporary filename for the given filename."""
|
|
if self.params.get('nopart', False) or filename == '-' or \
|
|
(os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))):
|
|
return filename
|
|
return filename + '.part'
|
|
|
|
def undo_temp_name(self, filename):
|
|
if filename.endswith('.part'):
|
|
return filename[:-len('.part')]
|
|
return filename
|
|
|
|
def ytdl_filename(self, filename):
|
|
return filename + '.ytdl'
|
|
|
|
def try_rename(self, old_filename, new_filename):
|
|
if old_filename == new_filename:
|
|
return
|
|
try:
|
|
os.replace(old_filename, new_filename)
|
|
except (IOError, OSError) as err:
|
|
self.report_error(f'unable to rename file: {err}')
|
|
|
|
def try_utime(self, filename, last_modified_hdr):
|
|
"""Try to set the last-modified time of the given file."""
|
|
if last_modified_hdr is None:
|
|
return
|
|
if not os.path.isfile(encodeFilename(filename)):
|
|
return
|
|
timestr = last_modified_hdr
|
|
if timestr is None:
|
|
return
|
|
filetime = timeconvert(timestr)
|
|
if filetime is None:
|
|
return filetime
|
|
# Ignore obviously invalid dates
|
|
if filetime == 0:
|
|
return
|
|
try:
|
|
os.utime(filename, (time.time(), filetime))
|
|
except Exception:
|
|
pass
|
|
return filetime
|
|
|
|
def report_destination(self, filename):
|
|
"""Report destination filename."""
|
|
self.to_screen('[download] Destination: ' + filename)
|
|
|
|
def _prepare_multiline_status(self, lines=1):
|
|
if self.params.get('noprogress'):
|
|
self._multiline = QuietMultilinePrinter()
|
|
elif self.ydl.params.get('logger'):
|
|
self._multiline = MultilineLogger(self.ydl.params['logger'], lines)
|
|
elif self.params.get('progress_with_newline'):
|
|
self._multiline = BreaklineStatusPrinter(self.ydl._screen_file, lines)
|
|
else:
|
|
self._multiline = MultilinePrinter(self.ydl._screen_file, lines, not self.params.get('quiet'))
|
|
self._multiline.allow_colors = self._multiline._HAVE_FULLCAP and not self.params.get('no_color')
|
|
|
|
def _finish_multiline_status(self):
|
|
self._multiline.end()
|
|
|
|
_progress_styles = {
|
|
'downloaded_bytes': 'light blue',
|
|
'percent': 'light blue',
|
|
'eta': 'yellow',
|
|
'speed': 'green',
|
|
'elapsed': 'bold white',
|
|
'total_bytes': '',
|
|
'total_bytes_estimate': '',
|
|
}
|
|
|
|
def _report_progress_status(self, s, default_template):
|
|
for name, style in self._progress_styles.items():
|
|
name = f'_{name}_str'
|
|
if name not in s:
|
|
continue
|
|
s[name] = self._format_progress(s[name], style)
|
|
s['_default_template'] = default_template % s
|
|
|
|
progress_dict = s.copy()
|
|
progress_dict.pop('info_dict')
|
|
progress_dict = {'info': s['info_dict'], 'progress': progress_dict}
|
|
|
|
progress_template = self.params.get('progress_template', {})
|
|
self._multiline.print_at_line(self.ydl.evaluate_outtmpl(
|
|
progress_template.get('download') or '[download] %(progress._default_template)s',
|
|
progress_dict), s.get('progress_idx') or 0)
|
|
self.to_console_title(self.ydl.evaluate_outtmpl(
|
|
progress_template.get('download-title') or 'yt-dlp %(progress._default_template)s',
|
|
progress_dict))
|
|
|
|
def _format_progress(self, *args, **kwargs):
|
|
return self.ydl._format_text(
|
|
self._multiline.stream, self._multiline.allow_colors, *args, **kwargs)
|
|
|
|
def report_progress(self, s):
|
|
if s['status'] == 'finished':
|
|
if self.params.get('noprogress'):
|
|
self.to_screen('[download] Download completed')
|
|
msg_template = '100%%'
|
|
if s.get('total_bytes') is not None:
|
|
s['_total_bytes_str'] = format_bytes(s['total_bytes'])
|
|
msg_template += ' of %(_total_bytes_str)s'
|
|
if s.get('elapsed') is not None:
|
|
s['_elapsed_str'] = self.format_seconds(s['elapsed'])
|
|
msg_template += ' in %(_elapsed_str)s'
|
|
s['_percent_str'] = self.format_percent(100)
|
|
self._report_progress_status(s, msg_template)
|
|
return
|
|
|
|
if s['status'] != 'downloading':
|
|
return
|
|
|
|
if s.get('eta') is not None:
|
|
s['_eta_str'] = self.format_eta(s['eta'])
|
|
else:
|
|
s['_eta_str'] = 'Unknown'
|
|
|
|
if s.get('total_bytes') and s.get('downloaded_bytes') is not None:
|
|
s['_percent_str'] = self.format_percent(100 * s['downloaded_bytes'] / s['total_bytes'])
|
|
elif s.get('total_bytes_estimate') and s.get('downloaded_bytes') is not None:
|
|
s['_percent_str'] = self.format_percent(100 * s['downloaded_bytes'] / s['total_bytes_estimate'])
|
|
else:
|
|
if s.get('downloaded_bytes') == 0:
|
|
s['_percent_str'] = self.format_percent(0)
|
|
else:
|
|
s['_percent_str'] = 'Unknown %'
|
|
|
|
if s.get('speed') is not None:
|
|
s['_speed_str'] = self.format_speed(s['speed'])
|
|
else:
|
|
s['_speed_str'] = 'Unknown speed'
|
|
|
|
if s.get('total_bytes') is not None:
|
|
s['_total_bytes_str'] = format_bytes(s['total_bytes'])
|
|
msg_template = '%(_percent_str)s of %(_total_bytes_str)s at %(_speed_str)s ETA %(_eta_str)s'
|
|
elif s.get('total_bytes_estimate') is not None:
|
|
s['_total_bytes_estimate_str'] = format_bytes(s['total_bytes_estimate'])
|
|
msg_template = '%(_percent_str)s of ~%(_total_bytes_estimate_str)s at %(_speed_str)s ETA %(_eta_str)s'
|
|
else:
|
|
if s.get('downloaded_bytes') is not None:
|
|
s['_downloaded_bytes_str'] = format_bytes(s['downloaded_bytes'])
|
|
if s.get('elapsed'):
|
|
s['_elapsed_str'] = self.format_seconds(s['elapsed'])
|
|
msg_template = '%(_downloaded_bytes_str)s at %(_speed_str)s (%(_elapsed_str)s)'
|
|
else:
|
|
msg_template = '%(_downloaded_bytes_str)s at %(_speed_str)s'
|
|
else:
|
|
msg_template = '%(_percent_str)s at %(_speed_str)s ETA %(_eta_str)s'
|
|
if s.get('fragment_index') and s.get('fragment_count'):
|
|
msg_template += ' (frag %(fragment_index)s/%(fragment_count)s)'
|
|
elif s.get('fragment_index'):
|
|
msg_template += ' (frag %(fragment_index)s)'
|
|
self._report_progress_status(s, msg_template)
|
|
|
|
def report_resuming_byte(self, resume_len):
|
|
"""Report attempt to resume at given byte."""
|
|
self.to_screen('[download] Resuming download at byte %s' % resume_len)
|
|
|
|
def report_retry(self, err, count, retries):
|
|
"""Report retry in case of HTTP error 5xx"""
|
|
self.to_screen(
|
|
'[download] Got server HTTP error: %s. Retrying (attempt %d of %s) ...'
|
|
% (error_to_compat_str(err), count, self.format_retries(retries)))
|
|
|
|
def report_file_already_downloaded(self, *args, **kwargs):
|
|
"""Report file has already been fully downloaded."""
|
|
return self.ydl.report_file_already_downloaded(*args, **kwargs)
|
|
|
|
def report_unable_to_resume(self):
|
|
"""Report it was impossible to resume download."""
|
|
self.to_screen('[download] Unable to resume')
|
|
|
|
@staticmethod
|
|
def supports_manifest(manifest):
|
|
""" Whether the downloader can download the fragments from the manifest.
|
|
Redefine in subclasses if needed. """
|
|
pass
|
|
|
|
def download(self, filename, info_dict, subtitle=False):
|
|
"""Download to a filename using the info from info_dict
|
|
Return True on success and False otherwise
|
|
"""
|
|
|
|
nooverwrites_and_exists = (
|
|
not self.params.get('overwrites', True)
|
|
and os.path.exists(encodeFilename(filename))
|
|
)
|
|
|
|
if not hasattr(filename, 'write'):
|
|
continuedl_and_exists = (
|
|
self.params.get('continuedl', True)
|
|
and os.path.isfile(encodeFilename(filename))
|
|
and not self.params.get('nopart', False)
|
|
)
|
|
|
|
# Check file already present
|
|
if filename != '-' and (nooverwrites_and_exists or continuedl_and_exists):
|
|
self.report_file_already_downloaded(filename)
|
|
self._hook_progress({
|
|
'filename': filename,
|
|
'status': 'finished',
|
|
'total_bytes': os.path.getsize(encodeFilename(filename)),
|
|
}, info_dict)
|
|
return True, False
|
|
|
|
if subtitle is False:
|
|
min_sleep_interval = self.params.get('sleep_interval')
|
|
if min_sleep_interval:
|
|
max_sleep_interval = self.params.get('max_sleep_interval', min_sleep_interval)
|
|
sleep_interval = random.uniform(min_sleep_interval, max_sleep_interval)
|
|
self.to_screen(
|
|
'[download] Sleeping %s seconds ...' % (
|
|
int(sleep_interval) if sleep_interval.is_integer()
|
|
else '%.2f' % sleep_interval))
|
|
time.sleep(sleep_interval)
|
|
else:
|
|
sleep_interval_sub = 0
|
|
if type(self.params.get('sleep_interval_subtitles')) is int:
|
|
sleep_interval_sub = self.params.get('sleep_interval_subtitles')
|
|
if sleep_interval_sub > 0:
|
|
self.to_screen(
|
|
'[download] Sleeping %s seconds ...' % (
|
|
sleep_interval_sub))
|
|
time.sleep(sleep_interval_sub)
|
|
ret = self.real_download(filename, info_dict)
|
|
self._finish_multiline_status()
|
|
return ret, True
|
|
|
|
def real_download(self, filename, info_dict):
|
|
"""Real download process. Redefine in subclasses."""
|
|
raise NotImplementedError('This method must be implemented by subclasses')
|
|
|
|
def _hook_progress(self, status, info_dict):
|
|
if not self._progress_hooks:
|
|
return
|
|
status['info_dict'] = info_dict
|
|
# youtube-dl passes the same status object to all the hooks.
|
|
# Some third party scripts seems to be relying on this.
|
|
# So keep this behavior if possible
|
|
for ph in self._progress_hooks:
|
|
ph(status)
|
|
|
|
def add_progress_hook(self, ph):
|
|
# See YoutubeDl.py (search for progress_hooks) for a description of
|
|
# this interface
|
|
self._progress_hooks.append(ph)
|
|
|
|
def _debug_cmd(self, args, exe=None):
|
|
if not self.params.get('verbose', False):
|
|
return
|
|
|
|
str_args = [decodeArgument(a) for a in args]
|
|
|
|
if exe is None:
|
|
exe = os.path.basename(str_args[0])
|
|
|
|
self.write_debug('%s command line: %s' % (exe, shell_quote(str_args)))
|