-from __future__ import unicode_literals
-
-import re
-import io
import binascii
+import io
+import re
-from ..downloader import get_suitable_downloader
-from .fragment import FragmentFD, can_decrypt_frag
from .external import FFmpegFD
-
-from ..compat import (
- compat_urlparse,
-)
-from ..utils import (
- parse_m3u8_attributes,
- update_url_query,
- bug_reports_message,
-)
+from .fragment import FragmentFD
from .. import webvtt
+from ..compat import compat_urlparse
+from ..dependencies import Cryptodome_AES
+from ..downloader import get_suitable_downloader
+from ..utils import bug_reports_message, parse_m3u8_attributes, update_url_query
class HlsFD(FragmentFD):
FD_NAME = 'hlsnative'
@staticmethod
- def can_download(manifest, info_dict, allow_unplayable_formats=False, with_crypto=can_decrypt_frag):
+ def can_download(manifest, info_dict, allow_unplayable_formats=False):
UNSUPPORTED_FEATURES = [
# r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2]
def check_results():
yield not info_dict.get('is_live')
- is_aes128_enc = '#EXT-X-KEY:METHOD=AES-128' in manifest
- yield with_crypto or not is_aes128_enc
- yield not (is_aes128_enc and r'#EXT-X-BYTERANGE' in manifest)
for feature in UNSUPPORTED_FEATURES:
yield not re.search(feature, manifest)
return all(check_results())
man_url = urlh.geturl()
s = urlh.read().decode('utf-8', 'ignore')
- if not self.can_download(s, info_dict, self.params.get('allow_unplayable_formats')):
- if info_dict.get('extra_param_to_segment_url') or info_dict.get('_decryption_key_url'):
- self.report_error('pycryptodome not found. Please install')
+ can_download, message = self.can_download(s, info_dict, self.params.get('allow_unplayable_formats')), None
+ if can_download and not Cryptodome_AES and '#EXT-X-KEY:METHOD=AES-128' in s:
+ if FFmpegFD.available():
+ can_download, message = False, 'The stream has AES-128 encryption and pycryptodomex is not available'
+ else:
+ message = ('The stream has AES-128 encryption and neither ffmpeg nor pycryptodomex are available; '
+ 'Decryption will be performed natively, but will be extremely slow')
+ if not can_download:
+ has_drm = re.search('|'.join([
+ r'#EXT-X-FAXS-CM:', # Adobe Flash Access
+ r'#EXT-X-(?:SESSION-)?KEY:.*?URI="skd://', # Apple FairPlay
+ ]), s)
+ if has_drm and not self.params.get('allow_unplayable_formats'):
+ self.report_error(
+ 'This video is DRM protected; Try selecting another format with --format or '
+ 'add --check-formats to automatically fallback to the next best format')
return False
- if self.can_download(s, info_dict, with_crypto=True):
- self.report_warning('pycryptodome is needed to download this file natively')
+ message = message or 'Unsupported features have been detected'
fd = FFmpegFD(self.ydl, self.params)
- self.report_warning(
- '%s detected unsupported features; extraction will be delegated to %s' % (self.FD_NAME, fd.get_basename()))
+ self.report_warning(f'{message}; extraction will be delegated to {fd.get_basename()}')
return fd.real_download(filename, info_dict)
+ elif message:
+ self.report_warning(message)
is_webvtt = info_dict['ext'] == 'vtt'
if is_webvtt:
real_downloader = None # Packing the fragments is not currently supported for external downloader
else:
- real_downloader = get_suitable_downloader(info_dict, self.params, None, protocol='m3u8_frag_urls')
+ real_downloader = get_suitable_downloader(
+ info_dict, self.params, None, protocol='m3u8_frag_urls', to_stdout=(filename == '-'))
if real_downloader and not real_downloader.supports_manifest(s):
real_downloader = None
if real_downloader:
- self.to_screen(
- '[%s] Fragment downloads will be delegated to %s' % (self.FD_NAME, real_downloader.get_basename()))
+ self.to_screen(f'[{self.FD_NAME}] Fragment downloads will be delegated to {real_downloader.get_basename()}')
def is_ad_fragment_start(s):
return (s.startswith('#ANVATO-SEGMENT-INFO') and 'type=ad' in s
'byte_range': byte_range,
'media_sequence': media_sequence,
})
+ media_sequence += 1
elif line.startswith('#EXT-X-MAP'):
if format_index and discontinuity_count != format_index:
if extra_query:
frag_url = update_url_query(frag_url, extra_query)
- fragments.append({
- 'frag_index': frag_index,
- 'url': frag_url,
- 'decrypt_info': decrypt_info,
- 'byte_range': byte_range,
- 'media_sequence': media_sequence
- })
-
if map_info.get('BYTERANGE'):
splitted_byte_range = map_info.get('BYTERANGE').split('@')
sub_range_start = int(splitted_byte_range[1]) if len(splitted_byte_range) == 2 else byte_range['end']
'end': sub_range_start + int(splitted_byte_range[0]),
}
+ fragments.append({
+ 'frag_index': frag_index,
+ 'url': frag_url,
+ 'decrypt_info': decrypt_info,
+ 'byte_range': byte_range,
+ 'media_sequence': media_sequence
+ })
+ media_sequence += 1
+
elif line.startswith('#EXT-X-KEY'):
decrypt_url = decrypt_info.get('URI')
decrypt_info = parse_m3u8_attributes(line[11:])
elif line.startswith('#EXT-X-DISCONTINUITY'):
discontinuity_count += 1
i += 1
- media_sequence += 1
# We only download the first fragment during the test
if self.params.get('test', False):
fragments = [fragments[0] if fragments else None]
if real_downloader:
- info_copy = info_dict.copy()
- info_copy['fragments'] = fragments
+ info_dict['fragments'] = fragments
fd = real_downloader(self.ydl, self.params)
# TODO: Make progress updates work without hooking twice
# for ph in self._progress_hooks:
# fd.add_progress_hook(ph)
- return fd.real_download(filename, info_copy)
+ return fd.real_download(filename, info_dict)
if is_webvtt:
def pack_fragment(frag_content, frag_index):
output = io.StringIO()
adjust = 0
+ overflow = False
+ mpegts_last = None
for block in webvtt.parse_fragment(frag_content):
if isinstance(block, webvtt.CueBlock):
+ extra_state['webvtt_mpegts_last'] = mpegts_last
+ if overflow:
+ extra_state['webvtt_mpegts_adjust'] += 1
+ overflow = False
block.start += adjust
block.end += adjust
dedup_window = extra_state.setdefault('webvtt_dedup_window', [])
- cue = block.as_json
- # skip the cue if an identical one appears
- # in the window of potential duplicates
- # and prune the window of unviable candidates
+ ready = []
+
i = 0
- skip = True
+ is_new = True
while i < len(dedup_window):
- window_cue = dedup_window[i]
- if window_cue == cue:
- break
- if window_cue['end'] >= cue['start']:
- i += 1
+ wcue = dedup_window[i]
+ wblock = webvtt.CueBlock.from_json(wcue)
+ i += 1
+ if wblock.hinges(block):
+ wcue['end'] = block.end
+ is_new = False
+ continue
+ if wblock == block:
+ is_new = False
+ continue
+ if wblock.end > block.start:
continue
+ ready.append(wblock)
+ i -= 1
del dedup_window[i]
- else:
- skip = False
- if skip:
- continue
+ if is_new:
+ dedup_window.append(block.as_json)
+ for block in ready:
+ block.write_into(output)
- # add the cue to the window
- dedup_window.append(cue)
+ # we only emit cues once they fall out of the duplicate window
+ continue
elif isinstance(block, webvtt.Magic):
# take care of MPEG PES timestamp overflow
if block.mpegts is None:
extra_state.setdefault('webvtt_mpegts_adjust', 0)
block.mpegts += extra_state['webvtt_mpegts_adjust'] << 33
if block.mpegts < extra_state.get('webvtt_mpegts_last', 0):
- extra_state['webvtt_mpegts_adjust'] += 1
+ overflow = True
block.mpegts += 1 << 33
- extra_state['webvtt_mpegts_last'] = block.mpegts
+ mpegts_last = block.mpegts
if frag_index == 1:
extra_state['webvtt_mpegts'] = block.mpegts or 0
continue
block.write_into(output)
- return output.getvalue().encode('utf-8')
+ return output.getvalue().encode()
+
+ def fin_fragments():
+ dedup_window = extra_state.get('webvtt_dedup_window')
+ if not dedup_window:
+ return b''
+
+ output = io.StringIO()
+ for cue in dedup_window:
+ webvtt.CueBlock.from_json(cue).write_into(output)
+
+ return output.getvalue().encode()
+
+ self.download_and_append_fragments(
+ ctx, fragments, info_dict, pack_func=pack_fragment, finish_func=fin_fragments)
else:
- pack_fragment = None
- return self.download_and_append_fragments(ctx, fragments, info_dict, pack_fragment)
+ return self.download_and_append_fragments(ctx, fragments, info_dict)
projects / yt-dlp.git / blobdiff