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[youtubedl] / youtube_dl / downloader / hls.py
1 from __future__ import unicode_literals
2
3 import os
4 import re
5 import subprocess
6
7 from ..postprocessor.ffmpeg import FFmpegPostProcessor
8 from .common import FileDownloader
9 from ..compat import (
10 compat_urlparse,
11 compat_urllib_request,
12 )
13 from ..utils import (
14 encodeArgument,
15 encodeFilename,
16 )
17
18
19 class HlsFD(FileDownloader):
20 def real_download(self, filename, info_dict):
21 url = info_dict['url']
22 self.report_destination(filename)
23 tmpfilename = self.temp_name(filename)
24
25 ffpp = FFmpegPostProcessor(downloader=self)
26 if not ffpp.available:
27 self.report_error('m3u8 download detected but ffmpeg or avconv could not be found. Please install one.')
28 return False
29 ffpp.check_version()
30
31 args = [
32 encodeArgument(opt)
33 for opt in (ffpp.executable, '-y', '-i', url, '-f', 'mp4', '-c', 'copy', '-bsf:a', 'aac_adtstoasc')]
34 args.append(encodeFilename(tmpfilename, True))
35
36 retval = subprocess.call(args)
37 if retval == 0:
38 fsize = os.path.getsize(encodeFilename(tmpfilename))
39 self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
40 self.try_rename(tmpfilename, filename)
41 self._hook_progress({
42 'downloaded_bytes': fsize,
43 'total_bytes': fsize,
44 'filename': filename,
45 'status': 'finished',
46 })
47 return True
48 else:
49 self.to_stderr('\n')
50 self.report_error('%s exited with code %d' % (ffpp.basename, retval))
51 return False
52
53
54 class NativeHlsFD(FileDownloader):
55 """ A more limited implementation that does not require ffmpeg """
56
57 def real_download(self, filename, info_dict):
58 url = info_dict['url']
59 self.report_destination(filename)
60 tmpfilename = self.temp_name(filename)
61
62 self.to_screen(
63 '[hlsnative] %s: Downloading m3u8 manifest' % info_dict['id'])
64 data = self.ydl.urlopen(url).read()
65 s = data.decode('utf-8', 'ignore')
66 segment_urls = []
67 for line in s.splitlines():
68 line = line.strip()
69 if line and not line.startswith('#'):
70 segment_url = (
71 line
72 if re.match(r'^https?://', line)
73 else compat_urlparse.urljoin(url, line))
74 segment_urls.append(segment_url)
75
76 is_test = self.params.get('test', False)
77 remaining_bytes = self._TEST_FILE_SIZE if is_test else None
78 byte_counter = 0
79 with open(tmpfilename, 'wb') as outf:
80 for i, segurl in enumerate(segment_urls):
81 self.to_screen(
82 '[hlsnative] %s: Downloading segment %d / %d' %
83 (info_dict['id'], i + 1, len(segment_urls)))
84 seg_req = compat_urllib_request.Request(segurl)
85 if remaining_bytes is not None:
86 seg_req.add_header('Range', 'bytes=0-%d' % (remaining_bytes - 1))
87
88 segment = self.ydl.urlopen(seg_req).read()
89 if remaining_bytes is not None:
90 segment = segment[:remaining_bytes]
91 remaining_bytes -= len(segment)
92 outf.write(segment)
93 byte_counter += len(segment)
94 if remaining_bytes is not None and remaining_bytes <= 0:
95 break
96
97 self._hook_progress({
98 'downloaded_bytes': byte_counter,
99 'total_bytes': byte_counter,
100 'filename': filename,
101 'status': 'finished',
102 })
103 self.try_rename(tmpfilename, filename)
104 return True