import enum import json import os.path import re import subprocess import sys import time import uuid from .fragment import FragmentFD from ..compat import functools from ..postprocessor.ffmpeg import EXT_TO_OUT_FORMATS, FFmpegPostProcessor from ..utils import ( Popen, RetryManager, _configuration_args, check_executable, classproperty, cli_bool_option, cli_option, cli_valueless_option, determine_ext, encodeArgument, encodeFilename, find_available_port, remove_end, sanitized_Request, traverse_obj, ) class Features(enum.Enum): TO_STDOUT = enum.auto() MULTIPLE_FORMATS = enum.auto() class ExternalFD(FragmentFD): SUPPORTED_PROTOCOLS = ('http', 'https', 'ftp', 'ftps') SUPPORTED_FEATURES = () _CAPTURE_STDERR = True def real_download(self, filename, info_dict): self.report_destination(filename) tmpfilename = self.temp_name(filename) try: started = time.time() retval = self._call_downloader(tmpfilename, info_dict) except KeyboardInterrupt: if not info_dict.get('is_live'): raise # Live stream downloading cancellation should be considered as # correct and expected termination thus all postprocessing # should take place retval = 0 self.to_screen('[%s] Interrupted by user' % self.get_basename()) if retval == 0: status = { 'filename': filename, 'status': 'finished', 'elapsed': time.time() - started, } if filename != '-': fsize = os.path.getsize(encodeFilename(tmpfilename)) self.try_rename(tmpfilename, filename) status.update({ 'downloaded_bytes': fsize, 'total_bytes': fsize, }) self._hook_progress(status, info_dict) return True else: self.to_stderr('\n') self.report_error('%s exited with code %d' % ( self.get_basename(), retval)) return False @classmethod def get_basename(cls): return cls.__name__[:-2].lower() @classproperty def EXE_NAME(cls): return cls.get_basename() @functools.cached_property def exe(self): return self.EXE_NAME @classmethod def available(cls, path=None): path = check_executable( cls.EXE_NAME if path in (None, cls.get_basename()) else path, [cls.AVAILABLE_OPT]) if not path: return False cls.exe = path return path @classmethod def supports(cls, info_dict): return all(( not info_dict.get('to_stdout') or Features.TO_STDOUT in cls.SUPPORTED_FEATURES, '+' not in info_dict['protocol'] or Features.MULTIPLE_FORMATS in cls.SUPPORTED_FEATURES, not traverse_obj(info_dict, ('hls_aes', ...), 'extra_param_to_segment_url'), all(proto in cls.SUPPORTED_PROTOCOLS for proto in info_dict['protocol'].split('+')), )) @classmethod def can_download(cls, info_dict, path=None): return cls.available(path) and cls.supports(info_dict) def _option(self, command_option, param): return cli_option(self.params, command_option, param) def _bool_option(self, command_option, param, true_value='true', false_value='false', separator=None): return cli_bool_option(self.params, command_option, param, true_value, false_value, separator) def _valueless_option(self, command_option, param, expected_value=True): return cli_valueless_option(self.params, command_option, param, expected_value) def _configuration_args(self, keys=None, *args, **kwargs): return _configuration_args( self.get_basename(), self.params.get('external_downloader_args'), self.EXE_NAME, keys, *args, **kwargs) def _call_downloader(self, tmpfilename, info_dict): """ Either overwrite this or implement _make_cmd """ cmd = [encodeArgument(a) for a in self._make_cmd(tmpfilename, info_dict)] self._debug_cmd(cmd) if 'fragments' not in info_dict: _, stderr, returncode = self._call_process(cmd, info_dict) if returncode and stderr: self.to_stderr(stderr) return returncode skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True) retry_manager = RetryManager(self.params.get('fragment_retries'), self.report_retry, frag_index=None, fatal=not skip_unavailable_fragments) for retry in retry_manager: _, stderr, returncode = self._call_process(cmd, info_dict) if not returncode: break # TODO: Decide whether to retry based on error code # https://aria2.github.io/manual/en/html/aria2c.html#exit-status if stderr: self.to_stderr(stderr) retry.error = Exception() continue if not skip_unavailable_fragments and retry_manager.error: return -1 decrypt_fragment = self.decrypter(info_dict) dest, _ = self.sanitize_open(tmpfilename, 'wb') for frag_index, fragment in enumerate(info_dict['fragments']): fragment_filename = '%s-Frag%d' % (tmpfilename, frag_index) try: src, _ = self.sanitize_open(fragment_filename, 'rb') except OSError as err: if skip_unavailable_fragments and frag_index > 1: self.report_skip_fragment(frag_index, err) continue self.report_error(f'Unable to open fragment {frag_index}; {err}') return -1 dest.write(decrypt_fragment(fragment, src.read())) src.close() if not self.params.get('keep_fragments', False): self.try_remove(encodeFilename(fragment_filename)) dest.close() self.try_remove(encodeFilename('%s.frag.urls' % tmpfilename)) return 0 def _call_process(self, cmd, info_dict): return Popen.run(cmd, text=True, stderr=subprocess.PIPE if self._CAPTURE_STDERR else None) class CurlFD(ExternalFD): AVAILABLE_OPT = '-V' _CAPTURE_STDERR = False # curl writes the progress to stderr def _make_cmd(self, tmpfilename, info_dict): cmd = [self.exe, '--location', '-o', tmpfilename, '--compressed'] if info_dict.get('http_headers') is not None: for key, val in info_dict['http_headers'].items(): cmd += ['--header', f'{key}: {val}'] cmd += self._bool_option('--continue-at', 'continuedl', '-', '0') cmd += self._valueless_option('--silent', 'noprogress') cmd += self._valueless_option('--verbose', 'verbose') cmd += self._option('--limit-rate', 'ratelimit') retry = self._option('--retry', 'retries') if len(retry) == 2: if retry[1] in ('inf', 'infinite'): retry[1] = '2147483647' cmd += retry cmd += self._option('--max-filesize', 'max_filesize') cmd += self._option('--interface', 'source_address') cmd += self._option('--proxy', 'proxy') cmd += self._valueless_option('--insecure', 'nocheckcertificate') cmd += self._configuration_args() cmd += ['--', info_dict['url']] return cmd class AxelFD(ExternalFD): AVAILABLE_OPT = '-V' def _make_cmd(self, tmpfilename, info_dict): cmd = [self.exe, '-o', tmpfilename] if info_dict.get('http_headers') is not None: for key, val in info_dict['http_headers'].items(): cmd += ['-H', f'{key}: {val}'] cmd += self._configuration_args() cmd += ['--', info_dict['url']] return cmd class WgetFD(ExternalFD): AVAILABLE_OPT = '--version' def _make_cmd(self, tmpfilename, info_dict): cmd = [self.exe, '-O', tmpfilename, '-nv', '--no-cookies', '--compression=auto'] if info_dict.get('http_headers') is not None: for key, val in info_dict['http_headers'].items(): cmd += ['--header', f'{key}: {val}'] cmd += self._option('--limit-rate', 'ratelimit') retry = self._option('--tries', 'retries') if len(retry) == 2: if retry[1] in ('inf', 'infinite'): retry[1] = '0' cmd += retry cmd += self._option('--bind-address', 'source_address') proxy = self.params.get('proxy') if proxy: for var in ('http_proxy', 'https_proxy'): cmd += ['--execute', f'{var}={proxy}'] cmd += self._valueless_option('--no-check-certificate', 'nocheckcertificate') cmd += self._configuration_args() cmd += ['--', info_dict['url']] return cmd class Aria2cFD(ExternalFD): AVAILABLE_OPT = '-v' SUPPORTED_PROTOCOLS = ('http', 'https', 'ftp', 'ftps', 'dash_frag_urls', 'm3u8_frag_urls') @staticmethod def supports_manifest(manifest): UNSUPPORTED_FEATURES = [ r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [1] # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.2 ] check_results = (not re.search(feature, manifest) for feature in UNSUPPORTED_FEATURES) return all(check_results) @staticmethod def _aria2c_filename(fn): return fn if os.path.isabs(fn) else f'.{os.path.sep}{fn}' def _call_downloader(self, tmpfilename, info_dict): # FIXME: Disabled due to https://github.com/yt-dlp/yt-dlp/issues/5931 if False and 'no-external-downloader-progress' not in self.params.get('compat_opts', []): info_dict['__rpc'] = { 'port': find_available_port() or 19190, 'secret': str(uuid.uuid4()), } return super()._call_downloader(tmpfilename, info_dict) def _make_cmd(self, tmpfilename, info_dict): cmd = [self.exe, '-c', '--no-conf', '--console-log-level=warn', '--summary-interval=0', '--download-result=hide', '--http-accept-gzip=true', '--file-allocation=none', '-x16', '-j16', '-s16'] if 'fragments' in info_dict: cmd += ['--allow-overwrite=true', '--allow-piece-length-change=true'] else: cmd += ['--min-split-size', '1M'] if info_dict.get('http_headers') is not None: for key, val in info_dict['http_headers'].items(): cmd += ['--header', f'{key}: {val}'] cmd += self._option('--max-overall-download-limit', 'ratelimit') cmd += self._option('--interface', 'source_address') cmd += self._option('--all-proxy', 'proxy') cmd += self._bool_option('--check-certificate', 'nocheckcertificate', 'false', 'true', '=') cmd += self._bool_option('--remote-time', 'updatetime', 'true', 'false', '=') cmd += self._bool_option('--show-console-readout', 'noprogress', 'false', 'true', '=') cmd += self._configuration_args() if '__rpc' in info_dict: cmd += [ '--enable-rpc', f'--rpc-listen-port={info_dict["__rpc"]["port"]}', f'--rpc-secret={info_dict["__rpc"]["secret"]}'] # aria2c strips out spaces from the beginning/end of filenames and paths. # We work around this issue by adding a "./" to the beginning of the # filename and relative path, and adding a "/" at the end of the path. # See: https://github.com/yt-dlp/yt-dlp/issues/276 # https://github.com/ytdl-org/youtube-dl/issues/20312 # https://github.com/aria2/aria2/issues/1373 dn = os.path.dirname(tmpfilename) if dn: cmd += ['--dir', self._aria2c_filename(dn) + os.path.sep] if 'fragments' not in info_dict: cmd += ['--out', self._aria2c_filename(os.path.basename(tmpfilename))] cmd += ['--auto-file-renaming=false'] if 'fragments' in info_dict: cmd += ['--file-allocation=none', '--uri-selector=inorder'] url_list_file = '%s.frag.urls' % tmpfilename url_list = [] for frag_index, fragment in enumerate(info_dict['fragments']): fragment_filename = '%s-Frag%d' % (os.path.basename(tmpfilename), frag_index) url_list.append('%s\n\tout=%s' % (fragment['url'], self._aria2c_filename(fragment_filename))) stream, _ = self.sanitize_open(url_list_file, 'wb') stream.write('\n'.join(url_list).encode()) stream.close() cmd += ['-i', self._aria2c_filename(url_list_file)] else: cmd += ['--', info_dict['url']] return cmd def aria2c_rpc(self, rpc_port, rpc_secret, method, params=()): # Does not actually need to be UUID, just unique sanitycheck = str(uuid.uuid4()) d = json.dumps({ 'jsonrpc': '2.0', 'id': sanitycheck, 'method': method, 'params': [f'token:{rpc_secret}', *params], }).encode('utf-8') request = sanitized_Request( f'http://localhost:{rpc_port}/jsonrpc', data=d, headers={ 'Content-Type': 'application/json', 'Content-Length': f'{len(d)}', 'Ytdl-request-proxy': '__noproxy__', }) with self.ydl.urlopen(request) as r: resp = json.load(r) assert resp.get('id') == sanitycheck, 'Something went wrong with RPC server' return resp['result'] def _call_process(self, cmd, info_dict): if '__rpc' not in info_dict: return super()._call_process(cmd, info_dict) send_rpc = functools.partial(self.aria2c_rpc, info_dict['__rpc']['port'], info_dict['__rpc']['secret']) started = time.time() fragmented = 'fragments' in info_dict frag_count = len(info_dict['fragments']) if fragmented else 1 status = { 'filename': info_dict.get('_filename'), 'status': 'downloading', 'elapsed': 0, 'downloaded_bytes': 0, 'fragment_count': frag_count if fragmented else None, 'fragment_index': 0 if fragmented else None, } self._hook_progress(status, info_dict) def get_stat(key, *obj, average=False): val = tuple(filter(None, map(float, traverse_obj(obj, (..., ..., key))))) or [0] return sum(val) / (len(val) if average else 1) with Popen(cmd, text=True, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE) as p: # Add a small sleep so that RPC client can receive response, # or the connection stalls infinitely time.sleep(0.2) retval = p.poll() while retval is None: # We don't use tellStatus as we won't know the GID without reading stdout # Ref: https://aria2.github.io/manual/en/html/aria2c.html#aria2.tellActive active = send_rpc('aria2.tellActive') completed = send_rpc('aria2.tellStopped', [0, frag_count]) downloaded = get_stat('totalLength', completed) + get_stat('completedLength', active) speed = get_stat('downloadSpeed', active) total = frag_count * get_stat('totalLength', active, completed, average=True) if total < downloaded: total = None status.update({ 'downloaded_bytes': int(downloaded), 'speed': speed, 'total_bytes': None if fragmented else total, 'total_bytes_estimate': total, 'eta': (total - downloaded) / (speed or 1), 'fragment_index': min(frag_count, len(completed) + 1) if fragmented else None, 'elapsed': time.time() - started }) self._hook_progress(status, info_dict) if not active and len(completed) >= frag_count: send_rpc('aria2.shutdown') retval = p.wait() break time.sleep(0.1) retval = p.poll() return '', p.stderr.read(), retval class HttpieFD(ExternalFD): AVAILABLE_OPT = '--version' EXE_NAME = 'http' def _make_cmd(self, tmpfilename, info_dict): cmd = ['http', '--download', '--output', tmpfilename, info_dict['url']] if info_dict.get('http_headers') is not None: for key, val in info_dict['http_headers'].items(): cmd += [f'{key}:{val}'] return cmd class FFmpegFD(ExternalFD): SUPPORTED_PROTOCOLS = ('http', 'https', 'ftp', 'ftps', 'm3u8', 'm3u8_native', 'rtsp', 'rtmp', 'rtmp_ffmpeg', 'mms', 'http_dash_segments') SUPPORTED_FEATURES = (Features.TO_STDOUT, Features.MULTIPLE_FORMATS) @classmethod def available(cls, path=None): # TODO: Fix path for ffmpeg # Fixme: This may be wrong when --ffmpeg-location is used return FFmpegPostProcessor().available def on_process_started(self, proc, stdin): """ Override this in subclasses """ pass @classmethod def can_merge_formats(cls, info_dict, params): return ( info_dict.get('requested_formats') and info_dict.get('protocol') and not params.get('allow_unplayable_formats') and 'no-direct-merge' not in params.get('compat_opts', []) and cls.can_download(info_dict)) def _call_downloader(self, tmpfilename, info_dict): ffpp = FFmpegPostProcessor(downloader=self) if not ffpp.available: self.report_error('m3u8 download detected but ffmpeg could not be found. Please install') return False ffpp.check_version() args = [ffpp.executable, '-y'] for log_level in ('quiet', 'verbose'): if self.params.get(log_level, False): args += ['-loglevel', log_level] break if not self.params.get('verbose'): args += ['-hide_banner'] args += traverse_obj(info_dict, ('downloader_options', 'ffmpeg_args'), default=[]) # These exists only for compatibility. Extractors should use # info_dict['downloader_options']['ffmpeg_args'] instead args += info_dict.get('_ffmpeg_args') or [] seekable = info_dict.get('_seekable') if seekable is not None: # setting -seekable prevents ffmpeg from guessing if the server # supports seeking(by adding the header `Range: bytes=0-`), which # can cause problems in some cases # https://github.com/ytdl-org/youtube-dl/issues/11800#issuecomment-275037127 # http://trac.ffmpeg.org/ticket/6125#comment:10 args += ['-seekable', '1' if seekable else '0'] env = None proxy = self.params.get('proxy') if proxy: if not re.match(r'^[\da-zA-Z]+://', proxy): proxy = 'http://%s' % proxy if proxy.startswith('socks'): self.report_warning( '%s does not support SOCKS proxies. Downloading is likely to fail. ' 'Consider adding --hls-prefer-native to your command.' % self.get_basename()) # Since December 2015 ffmpeg supports -http_proxy option (see # http://git.videolan.org/?p=ffmpeg.git;a=commit;h=b4eb1f29ebddd60c41a2eb39f5af701e38e0d3fd) # We could switch to the following code if we are able to detect version properly # args += ['-http_proxy', proxy] env = os.environ.copy() env['HTTP_PROXY'] = proxy env['http_proxy'] = proxy protocol = info_dict.get('protocol') if protocol == 'rtmp': player_url = info_dict.get('player_url') page_url = info_dict.get('page_url') app = info_dict.get('app') play_path = info_dict.get('play_path') tc_url = info_dict.get('tc_url') flash_version = info_dict.get('flash_version') live = info_dict.get('rtmp_live', False) conn = info_dict.get('rtmp_conn') if player_url is not None: args += ['-rtmp_swfverify', player_url] if page_url is not None: args += ['-rtmp_pageurl', page_url] if app is not None: args += ['-rtmp_app', app] if play_path is not None: args += ['-rtmp_playpath', play_path] if tc_url is not None: args += ['-rtmp_tcurl', tc_url] if flash_version is not None: args += ['-rtmp_flashver', flash_version] if live: args += ['-rtmp_live', 'live'] if isinstance(conn, list): for entry in conn: args += ['-rtmp_conn', entry] elif isinstance(conn, str): args += ['-rtmp_conn', conn] start_time, end_time = info_dict.get('section_start') or 0, info_dict.get('section_end') selected_formats = info_dict.get('requested_formats') or [info_dict] for i, fmt in enumerate(selected_formats): if fmt.get('http_headers') and re.match(r'^https?://', fmt['url']): # Trailing \r\n after each HTTP header is important to prevent warning from ffmpeg/avconv: # [http @ 00000000003d2fa0] No trailing CRLF found in HTTP header. args.extend(['-headers', ''.join(f'{key}: {val}\r\n' for key, val in fmt['http_headers'].items())]) if start_time: args += ['-ss', str(start_time)] if end_time: args += ['-t', str(end_time - start_time)] args += self._configuration_args((f'_i{i + 1}', '_i')) + ['-i', fmt['url']] if not (start_time or end_time) or not self.params.get('force_keyframes_at_cuts'): args += ['-c', 'copy'] if info_dict.get('requested_formats') or protocol == 'http_dash_segments': for i, fmt in enumerate(selected_formats): stream_number = fmt.get('manifest_stream_number', 0) args.extend(['-map', f'{i}:{stream_number}']) if self.params.get('test', False): args += ['-fs', str(self._TEST_FILE_SIZE)] ext = info_dict['ext'] if protocol in ('m3u8', 'm3u8_native'): use_mpegts = (tmpfilename == '-') or self.params.get('hls_use_mpegts') if use_mpegts is None: use_mpegts = info_dict.get('is_live') if use_mpegts: args += ['-f', 'mpegts'] else: args += ['-f', 'mp4'] if (ffpp.basename == 'ffmpeg' and ffpp._features.get('needs_adtstoasc')) and (not info_dict.get('acodec') or info_dict['acodec'].split('.')[0] in ('aac', 'mp4a')): args += ['-bsf:a', 'aac_adtstoasc'] elif protocol == 'rtmp': args += ['-f', 'flv'] elif ext == 'mp4' and tmpfilename == '-': args += ['-f', 'mpegts'] elif ext == 'unknown_video': ext = determine_ext(remove_end(tmpfilename, '.part')) if ext == 'unknown_video': self.report_warning( 'The video format is unknown and cannot be downloaded by ffmpeg. ' 'Explicitly set the extension in the filename to attempt download in that format') else: self.report_warning(f'The video format is unknown. Trying to download as {ext} according to the filename') args += ['-f', EXT_TO_OUT_FORMATS.get(ext, ext)] else: args += ['-f', EXT_TO_OUT_FORMATS.get(ext, ext)] args += self._configuration_args(('_o1', '_o', '')) args = [encodeArgument(opt) for opt in args] args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True)) self._debug_cmd(args) piped = any(fmt['url'] in ('-', 'pipe:') for fmt in selected_formats) with Popen(args, stdin=subprocess.PIPE, env=env) as proc: if piped: self.on_process_started(proc, proc.stdin) try: retval = proc.wait() except BaseException as e: # subprocces.run would send the SIGKILL signal to ffmpeg and the # mp4 file couldn't be played, but if we ask ffmpeg to quit it # produces a file that is playable (this is mostly useful for live # streams). Note that Windows is not affected and produces playable # files (see https://github.com/ytdl-org/youtube-dl/issues/8300). if isinstance(e, KeyboardInterrupt) and sys.platform != 'win32' and not piped: proc.communicate_or_kill(b'q') else: proc.kill(timeout=None) raise return retval class AVconvFD(FFmpegFD): pass _BY_NAME = { klass.get_basename(): klass for name, klass in globals().items() if name.endswith('FD') and name not in ('ExternalFD', 'FragmentFD') } def list_external_downloaders(): return sorted(_BY_NAME.keys()) def get_external_downloader(external_downloader): """ Given the name of the executable, see whether we support the given downloader """ bn = os.path.splitext(os.path.basename(external_downloader))[0] return _BY_NAME.get(bn) or next(( klass for klass in _BY_NAME.values() if klass.EXE_NAME in bn ), None)