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[downloader/aria2c] Native progress for aria2c via RPC (#3724)
Authored by: Lesmiscore, pukkandan Closes #2038
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Lesmiscore
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@ -153,6 +153,7 @@ ### Differences in default behavior
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* When `--embed-subs` and `--write-subs` are used together, the subtitles are written to disk and also embedded in the media file. You can use just `--embed-subs` to embed the subs and automatically delete the separate file. See [#630 (comment)](https://github.com/yt-dlp/yt-dlp/issues/630#issuecomment-893659460) for more info. `--compat-options no-keep-subs` can be used to revert this
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* `certifi` will be used for SSL root certificates, if installed. If you want to use system certificates (e.g. self-signed), use `--compat-options no-certifi`
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* yt-dlp's sanitization of invalid characters in filenames is different/smarter than in youtube-dl. You can use `--compat-options filename-sanitization` to revert to youtube-dl's behavior
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* yt-dlp tries to parse the external downloader outputs into the standard progress output if possible (Currently implemented: `aria2c`). You can use `--compat-options no-external-downloader-progress` to get the downloader output as-is
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For ease of use, a few more compat options are available:
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@ -160,7 +161,7 @@ ### Differences in default behavior
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* `--compat-options youtube-dl`: Same as `--compat-options all,-multistreams`
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* `--compat-options youtube-dlc`: Same as `--compat-options all,-no-live-chat,-no-youtube-channel-redirect`
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* `--compat-options 2021`: Same as `--compat-options 2022,no-certifi,filename-sanitization,no-youtube-prefer-utc-upload-date`
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* `--compat-options 2022`: Currently does nothing. Use this to enable all future compat options
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* `--compat-options 2022`: Same as `--compat-options no-external-downloader-progress`. Use this to enable all future compat options
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# INSTALLATION
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@ -1,9 +1,11 @@
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import enum
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import json
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import os.path
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import re
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import subprocess
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import sys
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import time
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import uuid
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from .fragment import FragmentFD
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from ..compat import functools
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@ -20,8 +22,10 @@
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determine_ext,
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encodeArgument,
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encodeFilename,
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find_available_port,
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handle_youtubedl_headers,
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remove_end,
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sanitized_Request,
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traverse_obj,
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)
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@ -60,7 +64,6 @@ def real_download(self, filename, info_dict):
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}
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if filename != '-':
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fsize = os.path.getsize(encodeFilename(tmpfilename))
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self.to_screen(f'\r[{self.get_basename()}] Downloaded {fsize} bytes')
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self.try_rename(tmpfilename, filename)
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status.update({
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'downloaded_bytes': fsize,
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@ -129,8 +132,7 @@ def _call_downloader(self, tmpfilename, info_dict):
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self._debug_cmd(cmd)
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if 'fragments' not in info_dict:
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_, stderr, returncode = Popen.run(
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cmd, text=True, stderr=subprocess.PIPE if self._CAPTURE_STDERR else None)
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_, stderr, returncode = self._call_process(cmd, info_dict)
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if returncode and stderr:
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self.to_stderr(stderr)
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return returncode
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@ -140,7 +142,7 @@ def _call_downloader(self, tmpfilename, info_dict):
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retry_manager = RetryManager(self.params.get('fragment_retries'), self.report_retry,
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frag_index=None, fatal=not skip_unavailable_fragments)
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for retry in retry_manager:
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_, stderr, returncode = Popen.run(cmd, text=True, stderr=subprocess.PIPE)
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_, stderr, returncode = self._call_process(cmd, info_dict)
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if not returncode:
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break
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# TODO: Decide whether to retry based on error code
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@ -172,6 +174,9 @@ def _call_downloader(self, tmpfilename, info_dict):
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self.try_remove(encodeFilename('%s.frag.urls' % tmpfilename))
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return 0
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def _call_process(self, cmd, info_dict):
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return Popen.run(cmd, text=True, stderr=subprocess.PIPE)
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class CurlFD(ExternalFD):
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AVAILABLE_OPT = '-V'
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@ -256,6 +261,14 @@ def supports_manifest(manifest):
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def _aria2c_filename(fn):
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return fn if os.path.isabs(fn) else f'.{os.path.sep}{fn}'
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def _call_downloader(self, tmpfilename, info_dict):
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if 'no-external-downloader-progress' not in self.params.get('compat_opts', []):
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info_dict['__rpc'] = {
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'port': find_available_port() or 19190,
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'secret': str(uuid.uuid4()),
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}
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return super()._call_downloader(tmpfilename, info_dict)
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def _make_cmd(self, tmpfilename, info_dict):
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cmd = [self.exe, '-c',
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'--console-log-level=warn', '--summary-interval=0', '--download-result=hide',
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@ -276,6 +289,12 @@ def _make_cmd(self, tmpfilename, info_dict):
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cmd += self._bool_option('--show-console-readout', 'noprogress', 'false', 'true', '=')
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cmd += self._configuration_args()
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if '__rpc' in info_dict:
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cmd += [
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'--enable-rpc',
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f'--rpc-listen-port={info_dict["__rpc"]["port"]}',
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f'--rpc-secret={info_dict["__rpc"]["secret"]}']
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# aria2c strips out spaces from the beginning/end of filenames and paths.
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# We work around this issue by adding a "./" to the beginning of the
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# filename and relative path, and adding a "/" at the end of the path.
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@ -304,6 +323,88 @@ def _make_cmd(self, tmpfilename, info_dict):
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cmd += ['--', info_dict['url']]
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return cmd
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def aria2c_rpc(self, rpc_port, rpc_secret, method, params=()):
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# Does not actually need to be UUID, just unique
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sanitycheck = str(uuid.uuid4())
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d = json.dumps({
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'jsonrpc': '2.0',
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'id': sanitycheck,
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'method': method,
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'params': [f'token:{rpc_secret}', *params],
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}).encode('utf-8')
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request = sanitized_Request(
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f'http://localhost:{rpc_port}/jsonrpc',
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data=d, headers={
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'Content-Type': 'application/json',
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'Content-Length': f'{len(d)}',
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'Ytdl-request-proxy': '__noproxy__',
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})
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with self.ydl.urlopen(request) as r:
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resp = json.load(r)
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assert resp.get('id') == sanitycheck, 'Something went wrong with RPC server'
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return resp['result']
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def _call_process(self, cmd, info_dict):
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if '__rpc' not in info_dict:
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return super()._call_process(cmd, info_dict)
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send_rpc = functools.partial(self.aria2c_rpc, info_dict['__rpc']['port'], info_dict['__rpc']['secret'])
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started = time.time()
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fragmented = 'fragments' in info_dict
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frag_count = len(info_dict['fragments']) if fragmented else 1
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status = {
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'filename': info_dict.get('_filename'),
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'status': 'downloading',
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'elapsed': 0,
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'downloaded_bytes': 0,
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'fragment_count': frag_count if fragmented else None,
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'fragment_index': 0 if fragmented else None,
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}
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self._hook_progress(status, info_dict)
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def get_stat(key, *obj, average=False):
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val = tuple(filter(None, map(float, traverse_obj(obj, (..., ..., key))))) or [0]
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return sum(val) / (len(val) if average else 1)
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with Popen(cmd, text=True, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE) as p:
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# Add a small sleep so that RPC client can receive response,
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# or the connection stalls infinitely
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time.sleep(0.2)
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retval = p.poll()
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while retval is None:
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# We don't use tellStatus as we won't know the GID without reading stdout
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# Ref: https://aria2.github.io/manual/en/html/aria2c.html#aria2.tellActive
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active = send_rpc('aria2.tellActive')
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completed = send_rpc('aria2.tellStopped', [0, frag_count])
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downloaded = get_stat('totalLength', completed) + get_stat('completedLength', active)
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speed = get_stat('downloadSpeed', active)
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total = frag_count * get_stat('totalLength', active, completed, average=True)
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if total < downloaded:
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total = None
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status.update({
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'downloaded_bytes': int(downloaded),
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'speed': speed,
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'total_bytes': None if fragmented else total,
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'total_bytes_estimate': total,
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'eta': (total - downloaded) / (speed or 1),
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'fragment_index': min(frag_count, len(completed) + 1) if fragmented else None,
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'elapsed': time.time() - started
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})
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self._hook_progress(status, info_dict)
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if not active and len(completed) >= frag_count:
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send_rpc('aria2.shutdown')
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retval = p.wait()
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break
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time.sleep(0.1)
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retval = p.poll()
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return '', p.stderr.read(), retval
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class HttpieFD(ExternalFD):
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AVAILABLE_OPT = '--version'
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@ -464,14 +464,14 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
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'allowed_values': {
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'filename', 'filename-sanitization', 'format-sort', 'abort-on-error', 'format-spec', 'no-playlist-metafiles',
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'multistreams', 'no-live-chat', 'playlist-index', 'list-formats', 'no-direct-merge',
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'no-attach-info-json', 'embed-metadata', 'embed-thumbnail-atomicparsley',
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'seperate-video-versions', 'no-clean-infojson', 'no-keep-subs', 'no-certifi',
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'no-attach-info-json', 'embed-thumbnail-atomicparsley', 'no-external-downloader-progress',
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'embed-metadata', 'seperate-video-versions', 'no-clean-infojson', 'no-keep-subs', 'no-certifi',
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'no-youtube-channel-redirect', 'no-youtube-unavailable-videos', 'no-youtube-prefer-utc-upload-date',
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}, 'aliases': {
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'youtube-dl': ['all', '-multistreams'],
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'youtube-dlc': ['all', '-no-youtube-channel-redirect', '-no-live-chat'],
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'2021': ['2022', 'no-certifi', 'filename-sanitization', 'no-youtube-prefer-utc-upload-date'],
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'2022': [],
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'2022': ['no-external-downloader-progress'],
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}
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}, help=(
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'Options that can help keep compatibility with youtube-dl or youtube-dlc '
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@ -5243,6 +5243,15 @@ def random_birthday(year_field, month_field, day_field):
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}
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def find_available_port(interface=''):
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try:
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with socket.socket() as sock:
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sock.bind((interface, 0))
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return sock.getsockname()[1]
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except OSError:
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return None
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# Templates for internet shortcut files, which are plain text files.
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DOT_URL_LINK_TEMPLATE = '''\
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[InternetShortcut]
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