from __future__ import unicode_literals
-import os
+import os.path
import re
-import subprocess
-from .common import FileDownloader
from .fragment import FragmentFD
+from .external import FFmpegFD
from ..compat import compat_urlparse
-from ..postprocessor.ffmpeg import FFmpegPostProcessor
from ..utils import (
- encodeArgument,
encodeFilename,
sanitize_open,
- handle_youtubedl_headers,
)
-class HlsFD(FileDownloader):
- def real_download(self, filename, info_dict):
- url = info_dict['url']
- self.report_destination(filename)
- tmpfilename = self.temp_name(filename)
-
- ffpp = FFmpegPostProcessor(downloader=self)
- if not ffpp.available:
- self.report_error('m3u8 download detected but ffmpeg or avconv could not be found. Please install one.')
- return False
- ffpp.check_version()
-
- args = [ffpp.executable, '-y']
-
- if info_dict['http_headers'] and re.match(r'^https?://', 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.
- headers = handle_youtubedl_headers(info_dict['http_headers'])
- args += [
- '-headers',
- ''.join('%s: %s\r\n' % (key, val) for key, val in headers.items())]
-
- args += ['-i', url, '-f', 'mp4', '-c', 'copy', '-bsf:a', 'aac_adtstoasc']
-
- args = [encodeArgument(opt) for opt in args]
- args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
-
- self._debug_cmd(args)
-
- retval = subprocess.call(args)
- if retval == 0:
- fsize = os.path.getsize(encodeFilename(tmpfilename))
- self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
- self.try_rename(tmpfilename, filename)
- self._hook_progress({
- 'downloaded_bytes': fsize,
- 'total_bytes': fsize,
- 'filename': filename,
- 'status': 'finished',
- })
- return True
- else:
- self.to_stderr('\n')
- self.report_error('%s exited with code %d' % (ffpp.basename, retval))
- return False
-
-
-class NativeHlsFD(FragmentFD):
- """ A more limited implementation that does not require ffmpeg """
+class HlsFD(FragmentFD):
+ """ A limited implementation that does not require ffmpeg """
FD_NAME = 'hlsnative'
+ @staticmethod
+ def can_download(manifest):
+ UNSUPPORTED_FEATURES = (
+ r'#EXT-X-KEY:METHOD=(?!NONE)', # encrypted streams [1]
+ r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2]
+
+ # Live streams heuristic does not always work (e.g. geo restricted to Germany
+ # http://hls-geo.daserste.de/i/videoportal/Film/c_620000/622873/format,716451,716457,716450,716458,716459,.mp4.csmil/index_4_av.m3u8?null=0)
+ # r'#EXT-X-MEDIA-SEQUENCE:(?!0$)', # live streams [3]
+
+ # This heuristic also is not correct since segments may not be appended as well.
+ # Twitch vods of finished streams have EXT-X-PLAYLIST-TYPE:EVENT despite
+ # no segments will definitely be appended to the end of the playlist.
+ # r'#EXT-X-PLAYLIST-TYPE:EVENT', # media segments may be appended to the end of
+ # # event media playlists [4]
+
+ # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.4
+ # 2. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.2
+ # 3. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.2
+ # 4. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.5
+ )
+ return all(not re.search(feature, manifest) for feature in UNSUPPORTED_FEATURES)
+
def real_download(self, filename, info_dict):
man_url = info_dict['url']
self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME)
manifest = self.ydl.urlopen(man_url).read()
s = manifest.decode('utf-8', 'ignore')
+
+ if not self.can_download(s):
+ self.report_warning(
+ 'hlsnative has detected features it does not support, '
+ 'extraction will be delegated to ffmpeg')
+ fd = FFmpegFD(self.ydl, self.params)
+ for ph in self._progress_hooks:
+ fd.add_progress_hook(ph)
+ return fd.real_download(filename, info_dict)
+
fragment_urls = []
for line in s.splitlines():
line = line.strip()
projects / youtube-dl / blobdiff