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Commit | Line | Data |
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f0b5d6af PH |
1 | from __future__ import unicode_literals |
2 | ||
12b84ac8 | 3 | import os.path |
f0b5d6af | 4 | import re |
3bc2ddcc | 5 | |
f9a5affa | 6 | from .fragment import FragmentFD |
0d66bd0e | 7 | from .external import FFmpegFD |
f9a5affa S |
8 | |
9 | from ..compat import compat_urlparse | |
1cc79574 | 10 | from ..utils import ( |
3bc2ddcc | 11 | encodeFilename, |
fcd9e423 | 12 | sanitize_open, |
3bc2ddcc JMF |
13 | ) |
14 | ||
15 | ||
12b84ac8 | 16 | class HlsFD(FragmentFD): |
17 | """ A limited implementation that does not require ffmpeg """ | |
f0b5d6af | 18 | |
f9a5affa S |
19 | FD_NAME = 'hlsnative' |
20 | ||
0d66bd0e S |
21 | @staticmethod |
22 | def can_download(manifest): | |
23 | UNSUPPORTED_FEATURES = ( | |
24 | r'#EXT-X-KEY:METHOD=(?!NONE)', # encrypted streams [1] | |
25 | r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2] | |
1e236d7e | 26 | |
c15c47d1 S |
27 | # Live streams heuristic does not always work (e.g. geo restricted to Germany |
28 | # 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) | |
2937590e | 29 | # r'#EXT-X-MEDIA-SEQUENCE:(?!0$)', # live streams [3] |
1e236d7e S |
30 | |
31 | # This heuristic also is not correct since segments may not be appended as well. | |
32 | # Twitch vods have EXT-X-PLAYLIST-TYPE:EVENT despite no segments will definitely | |
33 | # be appended to the end of the playlist. | |
34 | # r'#EXT-X-PLAYLIST-TYPE:EVENT', # media segments may be appended to the end of | |
51c4d85c | 35 | # # event media playlists [4] |
1e236d7e | 36 | |
0d66bd0e S |
37 | # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.4 |
38 | # 2. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.2 | |
39 | # 3. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.2 | |
6104cc29 | 40 | # 4. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.5 |
0d66bd0e S |
41 | ) |
42 | return all(not re.search(feature, manifest) for feature in UNSUPPORTED_FEATURES) | |
43 | ||
f0b5d6af | 44 | def real_download(self, filename, info_dict): |
f9a5affa S |
45 | man_url = info_dict['url'] |
46 | self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME) | |
47 | manifest = self.ydl.urlopen(man_url).read() | |
f0b5d6af | 48 | |
f9a5affa | 49 | s = manifest.decode('utf-8', 'ignore') |
0d66bd0e S |
50 | |
51 | if not self.can_download(s): | |
52 | self.report_warning( | |
53 | 'hlsnative has detected features it does not support, ' | |
54 | 'extraction will be delegated to ffmpeg') | |
55 | fd = FFmpegFD(self.ydl, self.params) | |
56 | for ph in self._progress_hooks: | |
57 | fd.add_progress_hook(ph) | |
58 | return fd.real_download(filename, info_dict) | |
59 | ||
f9a5affa | 60 | fragment_urls = [] |
f0b5d6af PH |
61 | for line in s.splitlines(): |
62 | line = line.strip() | |
63 | if line and not line.startswith('#'): | |
64 | segment_url = ( | |
65 | line | |
66 | if re.match(r'^https?://', line) | |
f9a5affa S |
67 | else compat_urlparse.urljoin(man_url, line)) |
68 | fragment_urls.append(segment_url) | |
69 | # We only download the first fragment during the test | |
70 | if self.params.get('test', False): | |
b686fc18 | 71 | break |
f0b5d6af | 72 | |
f9a5affa | 73 | ctx = { |
f0b5d6af | 74 | 'filename': filename, |
f9a5affa S |
75 | 'total_frags': len(fragment_urls), |
76 | } | |
77 | ||
78 | self._prepare_and_start_frag_download(ctx) | |
79 | ||
80 | frags_filenames = [] | |
81 | for i, frag_url in enumerate(fragment_urls): | |
82 | frag_filename = '%s-Frag%d' % (ctx['tmpfilename'], i) | |
83 | success = ctx['dl'].download(frag_filename, {'url': frag_url}) | |
84 | if not success: | |
85 | return False | |
fcd9e423 S |
86 | down, frag_sanitized = sanitize_open(frag_filename, 'rb') |
87 | ctx['dest_stream'].write(down.read()) | |
133a2b4a | 88 | down.close() |
fcd9e423 | 89 | frags_filenames.append(frag_sanitized) |
f9a5affa S |
90 | |
91 | self._finish_frag_download(ctx) | |
92 | ||
93 | for frag_file in frags_filenames: | |
fcd9e423 | 94 | os.remove(encodeFilename(frag_file)) |
f9a5affa | 95 | |
f0b5d6af | 96 | return True |