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yt-dlp/yt_dlp/downloader/__init__.py
2021-04-12 22:34:11 +05:30

103 lines
3.0 KiB
Python

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