[niconico] Implement heartbeat for download

This commit is contained in:
dirkf 2021-12-07 23:30:30 +00:00
parent 91278f4b6b
commit 92d73ef393
3 changed files with 101 additions and 8 deletions

View file

@ -1,22 +1,31 @@
from __future__ import unicode_literals from __future__ import unicode_literals
from ..utils import (
determine_protocol,
)
def get_suitable_downloader(info_dict, params={}):
info_dict['protocol'] = determine_protocol(info_dict)
info_copy = info_dict.copy()
return _get_suitable_downloader(info_copy, params)
# Some of these require get_suitable_downloader
from .common import FileDownloader from .common import FileDownloader
from .dash import DashSegmentsFD
from .f4m import F4mFD from .f4m import F4mFD
from .hls import HlsFD from .hls import HlsFD
from .http import HttpFD from .http import HttpFD
from .rtmp import RtmpFD from .rtmp import RtmpFD
from .dash import DashSegmentsFD
from .rtsp import RtspFD from .rtsp import RtspFD
from .ism import IsmFD from .ism import IsmFD
from .niconico import NiconicoDmcFD
from .external import ( from .external import (
get_external_downloader, get_external_downloader,
FFmpegFD, FFmpegFD,
) )
from ..utils import (
determine_protocol,
)
PROTOCOL_MAP = { PROTOCOL_MAP = {
'rtmp': RtmpFD, 'rtmp': RtmpFD,
'm3u8_native': HlsFD, 'm3u8_native': HlsFD,
@ -26,13 +35,12 @@ PROTOCOL_MAP = {
'f4m': F4mFD, 'f4m': F4mFD,
'http_dash_segments': DashSegmentsFD, 'http_dash_segments': DashSegmentsFD,
'ism': IsmFD, 'ism': IsmFD,
'niconico_dmc': NiconicoDmcFD,
} }
def get_suitable_downloader(info_dict, params={}): def _get_suitable_downloader(info_dict, params={}):
"""Get the downloader class that can handle the info dict.""" """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): # 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 # return FFmpegFD
@ -43,6 +51,7 @@ def get_suitable_downloader(info_dict, params={}):
if ed.can_download(info_dict): if ed.can_download(info_dict):
return ed return ed
protocol = info_dict['protocol']
if protocol.startswith('m3u8') and info_dict.get('is_live'): if protocol.startswith('m3u8') and info_dict.get('is_live'):
return FFmpegFD return FFmpegFD

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@ -0,0 +1,66 @@
# coding: utf-8
from __future__ import unicode_literals
try:
import threading
except ImportError:
threading = None
from .common import FileDownloader
from ..downloader import get_suitable_downloader
from ..extractor.niconico import NiconicoIE
from ..utils import sanitized_Request
class NiconicoDmcFD(FileDownloader):
""" Downloading niconico douga from DMC with heartbeat """
FD_NAME = 'niconico_dmc'
def real_download(self, filename, info_dict):
self.to_screen('[%s] Downloading from DMC' % self.FD_NAME)
ie = NiconicoIE(self.ydl)
info_dict, heartbeat_info_dict = ie._get_heartbeat_info(info_dict)
fd = get_suitable_downloader(info_dict, params=self.params)(self.ydl, self.params)
for ph in self._progress_hooks:
fd.add_progress_hook(ph)
if not threading:
self.to_screen('[%s] Threading for Heartbeat not available' % self.FD_NAME)
return fd.real_download(filename, info_dict)
success = download_complete = False
timer = [None]
heartbeat_lock = threading.Lock()
heartbeat_url = heartbeat_info_dict['url']
heartbeat_data = heartbeat_info_dict['data'].encode()
heartbeat_interval = heartbeat_info_dict.get('interval', 30)
request = sanitized_Request(heartbeat_url, heartbeat_data)
def heartbeat():
try:
self.ydl.urlopen(request).read()
except Exception:
self.to_screen('[%s] Heartbeat failed' % self.FD_NAME)
with heartbeat_lock:
if not download_complete:
timer[0] = threading.Timer(heartbeat_interval, heartbeat)
timer[0].start()
heartbeat_info_dict['ping']()
self.to_screen('[%s] Heartbeat with %d second interval ...' % (self.FD_NAME, heartbeat_interval))
try:
heartbeat()
if type(fd).__name__ == 'HlsFD':
info_dict.update(ie._extract_m3u8_formats(info_dict['url'], info_dict['id'])[0])
success = fd.real_download(filename, info_dict)
finally:
if heartbeat_lock:
with heartbeat_lock:
timer[0].cancel()
download_complete = True
return success

View file

@ -160,6 +160,24 @@ class NiconicoIE(InfoExtractor):
}, { }, {
'url': 'http://sp.nicovideo.jp/watch/sm28964488?ss_pos=1&cp_in=wt_tg', 'url': 'http://sp.nicovideo.jp/watch/sm28964488?ss_pos=1&cp_in=wt_tg',
'only_matching': True, 'only_matching': True,
}, {
# DMC video with heartbeat
'url': 'https://www.nicovideo.jp/watch/sm34815188',
'md5': '9360c6e1f1519d7759e2fe8e1326ae83',
'info_dict': {
'id': 'sm34815188',
'ext': 'mp4',
'title': 'md5:aee93e9f3366db72f902f6cd5d389cb7',
'description': 'md5:7b9149fc7a00ab053cafaf5c19662704',
'thumbnail': r're:https?://.*',
'uploader': 'md5:2762e18fa74dbb40aa1ad27c6291ee32',
'uploader_id': '67449889',
'upload_date': '20190322',
'timestamp': int, # timestamp is unstable
'duration': 1082.0,
'view_count': int,
'comment_count': int,
},
}] }]
_VALID_URL = r'https?://(?:www\.|secure\.|sp\.)?nicovideo\.jp/watch/(?P<id>(?:[a-z]{2})?[0-9]+)' _VALID_URL = r'https?://(?:www\.|secure\.|sp\.)?nicovideo\.jp/watch/(?P<id>(?:[a-z]{2})?[0-9]+)'