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	- replace HlsFD and RtspFD - add basic support for downloading part of the video or audio
		
			
				
	
	
		
			63 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from __future__ import unicode_literals
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import os.path
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import re
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from .fragment import FragmentFD
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from ..compat import compat_urlparse
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from ..utils import (
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    encodeFilename,
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    sanitize_open,
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)
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class HlsFD(FragmentFD):
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    """ A 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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