mirror of
https://github.com/ytdl-org/youtube-dl
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7d106a65ca
When using the mpegts container hls vidoes can be played while being downloaded (useful if you are recording a live stream). VLC and mpv play them file, but QuickTime doesn't.
128 lines
4.3 KiB
Python
128 lines
4.3 KiB
Python
from __future__ import unicode_literals
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import os
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import re
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import subprocess
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from .common import FileDownloader
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from .fragment import FragmentFD
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from ..compat import compat_urlparse
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from ..postprocessor.ffmpeg import FFmpegPostProcessor
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from ..utils import (
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encodeArgument,
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encodeFilename,
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sanitize_open,
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handle_youtubedl_headers,
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)
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class HlsFD(FileDownloader):
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def real_download(self, filename, info_dict):
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url = info_dict['url']
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self.report_destination(filename)
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tmpfilename = self.temp_name(filename)
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ffpp = FFmpegPostProcessor(downloader=self)
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if not ffpp.available:
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self.report_error('m3u8 download detected but ffmpeg or avconv could not be found. Please install one.')
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return False
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ffpp.check_version()
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args = [ffpp.executable, '-y']
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if info_dict['http_headers'] and re.match(r'^https?://', url):
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# Trailing \r\n after each HTTP header is important to prevent warning from ffmpeg/avconv:
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# [http @ 00000000003d2fa0] No trailing CRLF found in HTTP header.
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headers = handle_youtubedl_headers(info_dict['http_headers'])
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args += [
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'-headers',
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''.join('%s: %s\r\n' % (key, val) for key, val in headers.items())]
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args += ['-i', url, '-c', 'copy']
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if self.params.get('hls_use_mpegts', False):
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args += ['-f', 'mpegts']
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else:
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args += ['-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
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args = [encodeArgument(opt) for opt in args]
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args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
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self._debug_cmd(args)
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proc = subprocess.Popen(args, stdin=subprocess.PIPE)
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try:
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retval = proc.wait()
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except KeyboardInterrupt:
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# subprocces.run would send the SIGKILL signal to ffmpeg and the
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# mp4 file couldn't be played, but if we ask ffmpeg to quit it
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# produces a file that is playable (this is mostly useful for live
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# streams)
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proc.communicate(b'q')
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raise
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if retval == 0:
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fsize = os.path.getsize(encodeFilename(tmpfilename))
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self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
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self.try_rename(tmpfilename, filename)
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self._hook_progress({
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'downloaded_bytes': fsize,
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'total_bytes': fsize,
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'filename': filename,
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'status': 'finished',
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})
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return True
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else:
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self.to_stderr('\n')
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self.report_error('%s exited with code %d' % (ffpp.basename, retval))
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return False
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class NativeHlsFD(FragmentFD):
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""" A more limited implementation that does not require ffmpeg """
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FD_NAME = 'hlsnative'
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def real_download(self, filename, info_dict):
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man_url = info_dict['url']
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self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME)
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manifest = self.ydl.urlopen(man_url).read()
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s = manifest.decode('utf-8', 'ignore')
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fragment_urls = []
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for line in s.splitlines():
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line = line.strip()
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if line and not line.startswith('#'):
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segment_url = (
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line
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if re.match(r'^https?://', line)
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else compat_urlparse.urljoin(man_url, line))
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fragment_urls.append(segment_url)
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# We only download the first fragment during the test
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if self.params.get('test', False):
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break
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ctx = {
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'filename': filename,
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'total_frags': len(fragment_urls),
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}
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self._prepare_and_start_frag_download(ctx)
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frags_filenames = []
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for i, frag_url in enumerate(fragment_urls):
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frag_filename = '%s-Frag%d' % (ctx['tmpfilename'], i)
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success = ctx['dl'].download(frag_filename, {'url': frag_url})
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if not success:
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return False
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down, frag_sanitized = sanitize_open(frag_filename, 'rb')
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ctx['dest_stream'].write(down.read())
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down.close()
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frags_filenames.append(frag_sanitized)
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self._finish_frag_download(ctx)
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for frag_file in frags_filenames:
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os.remove(encodeFilename(frag_file))
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return True
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