-import os
-import subprocess
+from __future__ import unicode_literals
-from .common import FileDownloader
+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(FileDownloader):
+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]
+ 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):
- url = info_dict['url']
- self.report_destination(filename)
- tmpfilename = self.temp_name(filename)
-
- args = [
- '-y', '-i', url, '-f', 'mp4', '-c', 'copy',
- '-bsf:a', 'aac_adtstoasc',
- encodeFilename(tmpfilename, for_subprocess=True)]
-
- for program in ['avconv', 'ffmpeg']:
- try:
- subprocess.call([program, '-version'], stdout=(open(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
- break
- except (OSError, IOError):
- pass
- else:
- self.report_error(u'm3u8 download detected but ffmpeg or avconv could not be found. Please install one.')
- cmd = [program] + args
-
- retval = subprocess.call(cmd)
- if retval == 0:
- fsize = os.path.getsize(encodeFilename(tmpfilename))
- self.to_screen(u'\r[%s] %s bytes' % (cmd[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(u"\n")
- self.report_error(u'ffmpeg exited with code %d' % retval)
- return False
+ 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
projects / youtube-dl / blobdiff