rtmp.py (8888B)
1 from __future__ import unicode_literals 2 3 import os 4 import re 5 import subprocess 6 import time 7 8 from .common import FileDownloader 9 from ..compat import compat_str 10 from ..utils import ( 11 check_executable, 12 encodeFilename, 13 encodeArgument, 14 get_exe_version, 15 ) 16 17 18 def rtmpdump_version(): 19 return get_exe_version( 20 'rtmpdump', ['--help'], r'(?i)RTMPDump\s*v?([0-9a-zA-Z._-]+)') 21 22 23 class RtmpFD(FileDownloader): 24 def real_download(self, filename, info_dict): 25 def run_rtmpdump(args): 26 start = time.time() 27 resume_percent = None 28 resume_downloaded_data_len = None 29 proc = subprocess.Popen(args, stderr=subprocess.PIPE) 30 cursor_in_new_line = True 31 proc_stderr_closed = False 32 try: 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 finally: 93 proc.wait() 94 if not cursor_in_new_line: 95 self.to_screen('') 96 return proc.returncode 97 98 url = info_dict['url'] 99 player_url = info_dict.get('player_url') 100 page_url = info_dict.get('page_url') 101 app = info_dict.get('app') 102 play_path = info_dict.get('play_path') 103 tc_url = info_dict.get('tc_url') 104 flash_version = info_dict.get('flash_version') 105 live = info_dict.get('rtmp_live', False) 106 conn = info_dict.get('rtmp_conn') 107 protocol = info_dict.get('rtmp_protocol') 108 real_time = info_dict.get('rtmp_real_time', False) 109 no_resume = info_dict.get('no_resume', False) 110 continue_dl = self.params.get('continuedl', True) 111 112 self.report_destination(filename) 113 tmpfilename = self.temp_name(filename) 114 test = self.params.get('test', False) 115 116 # Check for rtmpdump first 117 if not check_executable('rtmpdump', ['-h']): 118 self.report_error('RTMP download detected but "rtmpdump" could not be run. Please install it.') 119 return False 120 121 # Download using rtmpdump. rtmpdump returns exit code 2 when 122 # the connection was interrupted and resuming appears to be 123 # possible. This is part of rtmpdump's normal usage, AFAIK. 124 basic_args = [ 125 'rtmpdump', '--verbose', '-r', url, 126 '-o', tmpfilename] 127 if player_url is not None: 128 basic_args += ['--swfVfy', player_url] 129 if page_url is not None: 130 basic_args += ['--pageUrl', page_url] 131 if app is not None: 132 basic_args += ['--app', app] 133 if play_path is not None: 134 basic_args += ['--playpath', play_path] 135 if tc_url is not None: 136 basic_args += ['--tcUrl', tc_url] 137 if test: 138 basic_args += ['--stop', '1'] 139 if flash_version is not None: 140 basic_args += ['--flashVer', flash_version] 141 if live: 142 basic_args += ['--live'] 143 if isinstance(conn, list): 144 for entry in conn: 145 basic_args += ['--conn', entry] 146 elif isinstance(conn, compat_str): 147 basic_args += ['--conn', conn] 148 if protocol is not None: 149 basic_args += ['--protocol', protocol] 150 if real_time: 151 basic_args += ['--realtime'] 152 153 args = basic_args 154 if not no_resume and continue_dl and not live: 155 args += ['--resume'] 156 if not live and continue_dl: 157 args += ['--skip', '1'] 158 159 args = [encodeArgument(a) for a in args] 160 161 self._debug_cmd(args, exe='rtmpdump') 162 163 RD_SUCCESS = 0 164 RD_FAILED = 1 165 RD_INCOMPLETE = 2 166 RD_NO_CONNECT = 3 167 168 started = time.time() 169 170 try: 171 retval = run_rtmpdump(args) 172 except KeyboardInterrupt: 173 if not info_dict.get('is_live'): 174 raise 175 retval = RD_SUCCESS 176 self.to_screen('\n[rtmpdump] Interrupted by user') 177 178 if retval == RD_NO_CONNECT: 179 self.report_error('[rtmpdump] Could not connect to RTMP server.') 180 return False 181 182 while retval in (RD_INCOMPLETE, RD_FAILED) and not test and not live: 183 prevsize = os.path.getsize(encodeFilename(tmpfilename)) 184 self.to_screen('[rtmpdump] Downloaded %s bytes' % prevsize) 185 time.sleep(5.0) # This seems to be needed 186 args = basic_args + ['--resume'] 187 if retval == RD_FAILED: 188 args += ['--skip', '1'] 189 args = [encodeArgument(a) for a in args] 190 retval = run_rtmpdump(args) 191 cursize = os.path.getsize(encodeFilename(tmpfilename)) 192 if prevsize == cursize and retval == RD_FAILED: 193 break 194 # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those 195 if prevsize == cursize and retval == RD_INCOMPLETE and cursize > 1024: 196 self.to_screen('[rtmpdump] Could not download the whole video. This can happen for some advertisements.') 197 retval = RD_SUCCESS 198 break 199 if retval == RD_SUCCESS or (test and retval == RD_INCOMPLETE): 200 fsize = os.path.getsize(encodeFilename(tmpfilename)) 201 self.to_screen('[rtmpdump] Downloaded %s bytes' % fsize) 202 self.try_rename(tmpfilename, filename) 203 self._hook_progress({ 204 'downloaded_bytes': fsize, 205 'total_bytes': fsize, 206 'filename': filename, 207 'status': 'finished', 208 'elapsed': time.time() - started, 209 }) 210 return True 211 else: 212 self.to_stderr('\n') 213 self.report_error('rtmpdump exited with code %d' % retval) 214 return False