mirror of
https://github.com/ytdl-org/youtube-dl
synced 2024-12-16 22:46:45 +00:00
86 lines
2.9 KiB
Python
86 lines
2.9 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import os.path
|
|
import re
|
|
|
|
from .fragment import FragmentFD
|
|
from .external import FFmpegFD
|
|
|
|
from ..compat import compat_urlparse
|
|
from ..utils import (
|
|
encodeFilename,
|
|
sanitize_open,
|
|
)
|
|
|
|
|
|
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]
|
|
r'#EXT-X-MEDIA-SEQUENCE:(?!0$)', # live streams [3]
|
|
# 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
|
|
)
|
|
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()
|
|
if line and not line.startswith('#'):
|
|
segment_url = (
|
|
line
|
|
if re.match(r'^https?://', line)
|
|
else compat_urlparse.urljoin(man_url, line))
|
|
fragment_urls.append(segment_url)
|
|
# We only download the first fragment during the test
|
|
if self.params.get('test', False):
|
|
break
|
|
|
|
ctx = {
|
|
'filename': filename,
|
|
'total_frags': len(fragment_urls),
|
|
}
|
|
|
|
self._prepare_and_start_frag_download(ctx)
|
|
|
|
frags_filenames = []
|
|
for i, frag_url in enumerate(fragment_urls):
|
|
frag_filename = '%s-Frag%d' % (ctx['tmpfilename'], i)
|
|
success = ctx['dl'].download(frag_filename, {'url': frag_url})
|
|
if not success:
|
|
return False
|
|
down, frag_sanitized = sanitize_open(frag_filename, 'rb')
|
|
ctx['dest_stream'].write(down.read())
|
|
down.close()
|
|
frags_filenames.append(frag_sanitized)
|
|
|
|
self._finish_frag_download(ctx)
|
|
|
|
for frag_file in frags_filenames:
|
|
os.remove(encodeFilename(frag_file))
|
|
|
|
return True
|