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	 0fa9a1e236
			
		
	
	0fa9a1e236
	
	
	
		
			
			closes #223
Authored by: nao20010128nao 
Modified from: 9e4a0e061a/youtube_dl/extractor/whowatch.py
		
	
		
			
				
	
	
		
			106 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			106 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from __future__ import unicode_literals
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| 
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| from ..compat import compat_str
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| from ..utils import (
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|     determine_protocol,
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| )
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| 
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| 
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| def _get_real_downloader(info_dict, protocol=None, *args, **kwargs):
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|     info_copy = info_dict.copy()
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|     if protocol:
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|         info_copy['protocol'] = protocol
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|     return get_suitable_downloader(info_copy, *args, **kwargs)
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| 
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| 
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| # Some of these require _get_real_downloader
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| from .common import FileDownloader
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| from .dash import DashSegmentsFD
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| from .f4m import F4mFD
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| from .hls import HlsFD
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| from .http import HttpFD
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| from .rtmp import RtmpFD
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| from .rtsp import RtspFD
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| from .ism import IsmFD
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| from .niconico import NiconicoDmcFD
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| from .youtube_live_chat import YoutubeLiveChatReplayFD
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| from .external import (
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|     get_external_downloader,
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|     FFmpegFD,
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| )
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| 
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| PROTOCOL_MAP = {
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|     'rtmp': RtmpFD,
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|     'rtmp_ffmpeg': FFmpegFD,
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|     'm3u8_native': HlsFD,
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|     'm3u8': FFmpegFD,
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|     'mms': RtspFD,
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|     'rtsp': RtspFD,
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|     'f4m': F4mFD,
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|     'http_dash_segments': DashSegmentsFD,
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|     'ism': IsmFD,
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|     'niconico_dmc': NiconicoDmcFD,
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|     'youtube_live_chat_replay': YoutubeLiveChatReplayFD,
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| }
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| 
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| 
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| def shorten_protocol_name(proto, simplify=False):
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|     short_protocol_names = {
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|         'm3u8_native': 'm3u8_n',
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|         'rtmp_ffmpeg': 'rtmp_f',
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|         'http_dash_segments': 'dash',
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|         'niconico_dmc': 'dmc',
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|     }
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|     if simplify:
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|         short_protocol_names.update({
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|             'https': 'http',
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|             'ftps': 'ftp',
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|             'm3u8_native': 'm3u8',
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|             'rtmp_ffmpeg': 'rtmp',
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|             'm3u8_frag_urls': 'm3u8',
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|             'dash_frag_urls': 'dash',
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|         })
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|     return short_protocol_names.get(proto, proto)
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| 
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| 
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| def get_suitable_downloader(info_dict, params={}, default=HttpFD):
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|     """Get the downloader class that can handle the info dict."""
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|     protocol = determine_protocol(info_dict)
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|     info_dict['protocol'] = protocol
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| 
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|     # if (info_dict.get('start_time') or info_dict.get('end_time')) and not info_dict.get('requested_formats') and FFmpegFD.can_download(info_dict):
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|     #     return FFmpegFD
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| 
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|     downloaders = params.get('external_downloader')
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|     external_downloader = (
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|         downloaders if isinstance(downloaders, compat_str) or downloaders is None
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|         else downloaders.get(shorten_protocol_name(protocol, True), downloaders.get('default')))
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|     if external_downloader and external_downloader.lower() == 'native':
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|         external_downloader = 'native'
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| 
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|     if external_downloader not in (None, 'native'):
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|         ed = get_external_downloader(external_downloader)
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|         if ed.can_download(info_dict, external_downloader):
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|             return ed
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| 
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|     if protocol in ('m3u8', 'm3u8_native'):
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|         if info_dict.get('is_live'):
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|             return FFmpegFD
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|         elif external_downloader == 'native':
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|             return HlsFD
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|         elif _get_real_downloader(info_dict, 'm3u8_frag_urls', params, None):
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|             return HlsFD
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|         elif params.get('hls_prefer_native') is True:
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|             return HlsFD
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|         elif params.get('hls_prefer_native') is False:
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|             return FFmpegFD
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| 
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|     return PROTOCOL_MAP.get(protocol, default)
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| 
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| 
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| __all__ = [
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|     'FileDownloader',
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|     'get_suitable_downloader',
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|     'shorten_protocol_name',
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| ]
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