_ Git - youtube-dl/blob - youtube_dl/downloader/rtmp.py

   1 from __future__ import unicode_literals
   2
   3 import os
   4 import re
   5 import subprocess
   6 import sys
   7 import time
   8
   9 from .common import FileDownloader
  10 from ..compat import compat_str
  11 from ..utils import (
  12     check_executable,
  13     encodeFilename,
  14     format_bytes,
  15     get_exe_version,
  16 )
  17
  18
  19 def rtmpdump_version():
  20     return get_exe_version(
  21         'rtmpdump', ['--help'], r'(?i)RTMPDump\s*v?([0-9a-zA-Z._-]+)')
  22
  23
  24 class RtmpFD(FileDownloader):
  25     def real_download(self, filename, info_dict):
  26         def run_rtmpdump(args):
  27             start = time.time()
  28             resume_percent = None
  29             resume_downloaded_data_len = None
  30             proc = subprocess.Popen(args, stderr=subprocess.PIPE)
  31             cursor_in_new_line = True
  32             proc_stderr_closed = False
  33             while not proc_stderr_closed:
  34                 # read line from stderr
  35                 line = ''
  36                 while True:
  37                     char = proc.stderr.read(1)
  38                     if not char:
  39                         proc_stderr_closed = True
  40                         break
  41                     if char in [b'\r', b'\n']:
  42                         break
  43                     line += char.decode('ascii', 'replace')
  44                 if not line:
  45                     # proc_stderr_closed is True
  46                     continue
  47                 mobj = re.search(r'([0-9]+\.[0-9]{3}) kB / [0-9]+\.[0-9]{2} sec \(([0-9]{1,2}\.[0-9])%\)', line)
  48                 if mobj:
  49                     downloaded_data_len = int(float(mobj.group(1)) * 1024)
  50                     percent = float(mobj.group(2))
  51                     if not resume_percent:
  52                         resume_percent = percent
  53                         resume_downloaded_data_len = downloaded_data_len
  54                     time_now = time.time()
  55                     eta = self.calc_eta(start, time_now, 100 - resume_percent, percent - resume_percent)
  56                     speed = self.calc_speed(start, time_now, downloaded_data_len - resume_downloaded_data_len)
  57                     data_len = None
  58                     if percent > 0:
  59                         data_len = int(downloaded_data_len * 100 / percent)
  60                     self._hook_progress({
  61                         'status': 'downloading',
  62                         'downloaded_bytes': downloaded_data_len,
  63                         'total_bytes_estimate': data_len,
  64                         'tmpfilename': tmpfilename,
  65                         'filename': filename,
  66                         'eta': eta,
  67                         'elapsed': time_now - start,
  68                         'speed': speed,
  69                     })
  70                     cursor_in_new_line = False
  71                 else:
  72                     # no percent for live streams
  73                     mobj = re.search(r'([0-9]+\.[0-9]{3}) kB / [0-9]+\.[0-9]{2} sec', line)
  74                     if mobj:
  75                         downloaded_data_len = int(float(mobj.group(1)) * 1024)
  76                         time_now = time.time()
  77                         speed = self.calc_speed(start, time_now, downloaded_data_len)
  78                         self._hook_progress({
  79                             'downloaded_bytes': downloaded_data_len,
  80                             'tmpfilename': tmpfilename,
  81                             'filename': filename,
  82                             'status': 'downloading',
  83                             'elapsed': time_now - start,
  84                             'speed': speed,
  85                         })
  86                         cursor_in_new_line = False
  87                     elif self.params.get('verbose', False):
  88                         if not cursor_in_new_line:
  89                             self.to_screen('')
  90                         cursor_in_new_line = True
  91                         self.to_screen('[rtmpdump] ' + line)
  92             proc.wait()
  93             if not cursor_in_new_line:
  94                 self.to_screen('')
  95             return proc.returncode
  96
  97         url = info_dict['url']
  98         player_url = info_dict.get('player_url', None)
  99         page_url = info_dict.get('page_url', None)
 100         app = info_dict.get('app', None)
 101         play_path = info_dict.get('play_path', None)
 102         tc_url = info_dict.get('tc_url', None)
 103         flash_version = info_dict.get('flash_version', None)
 104         live = info_dict.get('rtmp_live', False)
 105         conn = info_dict.get('rtmp_conn', None)
 106         protocol = info_dict.get('rtmp_protocol', None)
 107         real_time = info_dict.get('rtmp_real_time', False)
 108         no_resume = info_dict.get('no_resume', False)
 109         continue_dl = info_dict.get('continuedl', False)
 110
 111         self.report_destination(filename)
 112         tmpfilename = self.temp_name(filename)
 113         test = self.params.get('test', False)
 114
 115         # Check for rtmpdump first
 116         if not check_executable('rtmpdump', ['-h']):
 117             self.report_error('RTMP download detected but "rtmpdump" could not be run. Please install it.')
 118             return False
 119
 120         # Download using rtmpdump. rtmpdump returns exit code 2 when
 121         # the connection was interrumpted and resuming appears to be
 122         # possible. This is part of rtmpdump's normal usage, AFAIK.
 123         basic_args = ['rtmpdump', '--verbose', '-r', url, '-o', tmpfilename]
 124         if player_url is not None:
 125             basic_args += ['--swfVfy', player_url]
 126         if page_url is not None:
 127             basic_args += ['--pageUrl', page_url]
 128         if app is not None:
 129             basic_args += ['--app', app]
 130         if play_path is not None:
 131             basic_args += ['--playpath', play_path]
 132         if tc_url is not None:
 133             basic_args += ['--tcUrl', url]
 134         if test:
 135             basic_args += ['--stop', '1']
 136         if flash_version is not None:
 137             basic_args += ['--flashVer', flash_version]
 138         if live:
 139             basic_args += ['--live']
 140         if isinstance(conn, list):
 141             for entry in conn:
 142                 basic_args += ['--conn', entry]
 143         elif isinstance(conn, compat_str):
 144             basic_args += ['--conn', conn]
 145         if protocol is not None:
 146             basic_args += ['--protocol', protocol]
 147         if real_time:
 148             basic_args += ['--realtime']
 149
 150         args = basic_args
 151         if not no_resume and continue_dl and not live:
 152             args += ['--resume']
 153         if not live and continue_dl:
 154             args += ['--skip', '1']
 155
 156         if sys.platform == 'win32' and sys.version_info < (3, 0):
 157             # Windows subprocess module does not actually support Unicode
 158             # on Python 2.x
 159             # See http://stackoverflow.com/a/9951851/35070
 160             subprocess_encoding = sys.getfilesystemencoding()
 161             args = [a.encode(subprocess_encoding, 'ignore') for a in args]
 162         else:
 163             subprocess_encoding = None
 164
 165         self._debug_cmd(args, subprocess_encoding, exe='rtmpdump')
 166
 167         RD_SUCCESS = 0
 168         RD_FAILED = 1
 169         RD_INCOMPLETE = 2
 170         RD_NO_CONNECT = 3
 171
 172         retval = run_rtmpdump(args)
 173
 174         if retval == RD_NO_CONNECT:
 175             self.report_error('[rtmpdump] Could not connect to RTMP server.')
 176             return False
 177
 178         while (retval == RD_INCOMPLETE or retval == RD_FAILED) and not test and not live:
 179             prevsize = os.path.getsize(encodeFilename(tmpfilename))
 180             self.to_screen('[rtmpdump] %s bytes' % prevsize)
 181             time.sleep(5.0)  # This seems to be needed
 182             retval = run_rtmpdump(basic_args + ['-e'] + [[], ['-k', '1']][retval == RD_FAILED])
 183             cursize = os.path.getsize(encodeFilename(tmpfilename))
 184             if prevsize == cursize and retval == RD_FAILED:
 185                 break
 186             # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those
 187             if prevsize == cursize and retval == RD_INCOMPLETE and cursize > 1024:
 188                 self.to_screen('[rtmpdump] Could not download the whole video. This can happen for some advertisements.')
 189                 retval = RD_SUCCESS
 190                 break
 191         if retval == RD_SUCCESS or (test and retval == RD_INCOMPLETE):
 192             fsize = os.path.getsize(encodeFilename(tmpfilename))
 193             self.to_screen('[rtmpdump] %s bytes' % fsize)
 194             self.try_rename(tmpfilename, filename)
 195             self._hook_progress({
 196                 'downloaded_bytes': fsize,
 197                 'total_bytes': fsize,
 198                 'filename': filename,
 199                 'status': 'finished',
 200             })
 201             return True
 202         else:
 203             self.to_stderr('\n')
 204             self.report_error('rtmpdump exited with code %d' % retval)
 205             return False