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