mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-11-14 04:13:20 +00:00
[youtube_live_chat] Support ongoing live chat (#422)
Authored by: siikamiika
This commit is contained in:
siikamiika
GitHub
parent
8a77e5e6bc
commit
c60ee3a218
|
|
@ -25,7 +25,7 @@ def _get_real_downloader(info_dict, protocol=None, *args, **kwargs):
|
|||
from .mhtml import MhtmlFD
|
||||
from .niconico import NiconicoDmcFD
|
||||
from .websocket import WebSocketFragmentFD
|
||||
from .youtube_live_chat import YoutubeLiveChatReplayFD
|
||||
from .youtube_live_chat import YoutubeLiveChatFD
|
||||
from .external import (
|
||||
get_external_downloader,
|
||||
FFmpegFD,
|
||||
|
|
@ -44,7 +44,8 @@ def _get_real_downloader(info_dict, protocol=None, *args, **kwargs):
|
|||
'mhtml': MhtmlFD,
|
||||
'niconico_dmc': NiconicoDmcFD,
|
||||
'websocket_frag': WebSocketFragmentFD,
|
||||
'youtube_live_chat_replay': YoutubeLiveChatReplayFD,
|
||||
'youtube_live_chat': YoutubeLiveChatFD,
|
||||
'youtube_live_chat_replay': YoutubeLiveChatFD,
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1,20 +1,23 @@
|
|||
from __future__ import division, unicode_literals
|
||||
|
||||
import json
|
||||
import time
|
||||
|
||||
from .fragment import FragmentFD
|
||||
from ..compat import compat_urllib_error
|
||||
from ..utils import (
|
||||
try_get,
|
||||
dict_get,
|
||||
int_or_none,
|
||||
RegexNotFoundError,
|
||||
)
|
||||
from ..extractor.youtube import YoutubeBaseInfoExtractor as YT_BaseIE
|
||||
|
||||
|
||||
class YoutubeLiveChatReplayFD(FragmentFD):
|
||||
""" Downloads YouTube live chat replays fragment by fragment """
|
||||
class YoutubeLiveChatFD(FragmentFD):
|
||||
""" Downloads YouTube live chats fragment by fragment """
|
||||
|
||||
FD_NAME = 'youtube_live_chat_replay'
|
||||
FD_NAME = 'youtube_live_chat'
|
||||
|
||||
def real_download(self, filename, info_dict):
|
||||
video_id = info_dict['video_id']
|
||||
|
|
@ -31,6 +34,8 @@ def real_download(self, filename, info_dict):
|
|||
|
||||
ie = YT_BaseIE(self.ydl)
|
||||
|
||||
start_time = int(time.time() * 1000)
|
||||
|
||||
def dl_fragment(url, data=None, headers=None):
|
||||
http_headers = info_dict.get('http_headers', {})
|
||||
if headers:
|
||||
|
|
@ -38,22 +43,7 @@ def dl_fragment(url, data=None, headers=None):
|
|||
http_headers.update(headers)
|
||||
return self._download_fragment(ctx, url, info_dict, http_headers, data)
|
||||
|
||||
def download_and_parse_fragment(url, frag_index, request_data):
|
||||
count = 0
|
||||
while count <= fragment_retries:
|
||||
try:
|
||||
success, raw_fragment = dl_fragment(url, request_data, {'content-type': 'application/json'})
|
||||
if not success:
|
||||
return False, None, None
|
||||
try:
|
||||
data = ie._extract_yt_initial_data(video_id, raw_fragment.decode('utf-8', 'replace'))
|
||||
except RegexNotFoundError:
|
||||
data = None
|
||||
if not data:
|
||||
data = json.loads(raw_fragment)
|
||||
live_chat_continuation = try_get(
|
||||
data,
|
||||
lambda x: x['continuationContents']['liveChatContinuation'], dict) or {}
|
||||
def parse_actions_replay(live_chat_continuation):
|
||||
offset = continuation_id = None
|
||||
processed_fragment = bytearray()
|
||||
for action in live_chat_continuation.get('actions', []):
|
||||
|
|
@ -67,7 +57,56 @@ def download_and_parse_fragment(url, frag_index, request_data):
|
|||
live_chat_continuation,
|
||||
lambda x: x['continuations'][0]['liveChatReplayContinuationData']['continuation'])
|
||||
self._append_fragment(ctx, processed_fragment)
|
||||
return continuation_id, offset
|
||||
|
||||
live_offset = 0
|
||||
|
||||
def parse_actions_live(live_chat_continuation):
|
||||
nonlocal live_offset
|
||||
continuation_id = None
|
||||
processed_fragment = bytearray()
|
||||
for action in live_chat_continuation.get('actions', []):
|
||||
timestamp = self.parse_live_timestamp(action)
|
||||
if timestamp is not None:
|
||||
live_offset = timestamp - start_time
|
||||
# compatibility with replay format
|
||||
pseudo_action = {
|
||||
'replayChatItemAction': {'actions': [action]},
|
||||
'videoOffsetTimeMsec': str(live_offset),
|
||||
'isLive': True,
|
||||
}
|
||||
processed_fragment.extend(
|
||||
json.dumps(pseudo_action, ensure_ascii=False).encode('utf-8') + b'\n')
|
||||
continuation_data_getters = [
|
||||
lambda x: x['continuations'][0]['invalidationContinuationData'],
|
||||
lambda x: x['continuations'][0]['timedContinuationData'],
|
||||
]
|
||||
continuation_data = try_get(live_chat_continuation, continuation_data_getters, dict)
|
||||
if continuation_data:
|
||||
continuation_id = continuation_data.get('continuation')
|
||||
timeout_ms = int_or_none(continuation_data.get('timeoutMs'))
|
||||
if timeout_ms is not None:
|
||||
time.sleep(timeout_ms / 1000)
|
||||
self._append_fragment(ctx, processed_fragment)
|
||||
return continuation_id, live_offset
|
||||
|
||||
if info_dict['protocol'] == 'youtube_live_chat_replay':
|
||||
parse_actions = parse_actions_replay
|
||||
elif info_dict['protocol'] == 'youtube_live_chat':
|
||||
parse_actions = parse_actions_live
|
||||
|
||||
def download_and_parse_fragment(url, frag_index, request_data, headers):
|
||||
count = 0
|
||||
while count <= fragment_retries:
|
||||
try:
|
||||
success, raw_fragment = dl_fragment(url, request_data, headers)
|
||||
if not success:
|
||||
return False, None, None
|
||||
data = json.loads(raw_fragment)
|
||||
live_chat_continuation = try_get(
|
||||
data,
|
||||
lambda x: x['continuationContents']['liveChatContinuation'], dict) or {}
|
||||
continuation_id, offset = parse_actions(live_chat_continuation)
|
||||
return True, continuation_id, offset
|
||||
except compat_urllib_error.HTTPError as err:
|
||||
count += 1
|
||||
|
|
@ -100,7 +139,11 @@ def download_and_parse_fragment(url, frag_index, request_data):
|
|||
innertube_context = try_get(ytcfg, lambda x: x['INNERTUBE_CONTEXT'])
|
||||
if not api_key or not innertube_context:
|
||||
return False
|
||||
visitor_data = try_get(innertube_context, lambda x: x['client']['visitorData'], str)
|
||||
if info_dict['protocol'] == 'youtube_live_chat_replay':
|
||||
url = 'https://www.youtube.com/youtubei/v1/live_chat/get_live_chat_replay?key=' + api_key
|
||||
elif info_dict['protocol'] == 'youtube_live_chat':
|
||||
url = 'https://www.youtube.com/youtubei/v1/live_chat/get_live_chat?key=' + api_key
|
||||
|
||||
frag_index = offset = 0
|
||||
while continuation_id is not None:
|
||||
|
|
@ -111,8 +154,11 @@ def download_and_parse_fragment(url, frag_index, request_data):
|
|||
}
|
||||
if frag_index > 1:
|
||||
request_data['currentPlayerState'] = {'playerOffsetMs': str(max(offset - 5000, 0))}
|
||||
headers = ie._generate_api_headers(ytcfg, visitor_data=visitor_data)
|
||||
headers.update({'content-type': 'application/json'})
|
||||
fragment_request_data = json.dumps(request_data, ensure_ascii=False).encode('utf-8') + b'\n'
|
||||
success, continuation_id, offset = download_and_parse_fragment(
|
||||
url, frag_index, json.dumps(request_data, ensure_ascii=False).encode('utf-8') + b'\n')
|
||||
url, frag_index, fragment_request_data, headers)
|
||||
if not success:
|
||||
return False
|
||||
if test:
|
||||
|
|
@ -120,3 +166,39 @@ def download_and_parse_fragment(url, frag_index, request_data):
|
|||
|
||||
self._finish_frag_download(ctx)
|
||||
return True
|
||||
|
||||
@staticmethod
|
||||
def parse_live_timestamp(action):
|
||||
action_content = dict_get(
|
||||
action,
|
||||
['addChatItemAction', 'addLiveChatTickerItemAction', 'addBannerToLiveChatCommand'])
|
||||
if not isinstance(action_content, dict):
|
||||
return None
|
||||
item = dict_get(action_content, ['item', 'bannerRenderer'])
|
||||
if not isinstance(item, dict):
|
||||
return None
|
||||
renderer = dict_get(item, [
|
||||
# text
|
||||
'liveChatTextMessageRenderer', 'liveChatPaidMessageRenderer',
|
||||
'liveChatMembershipItemRenderer', 'liveChatPaidStickerRenderer',
|
||||
# ticker
|
||||
'liveChatTickerPaidMessageItemRenderer',
|
||||
'liveChatTickerSponsorItemRenderer',
|
||||
# banner
|
||||
'liveChatBannerRenderer',
|
||||
])
|
||||
if not isinstance(renderer, dict):
|
||||
return None
|
||||
parent_item_getters = [
|
||||
lambda x: x['showItemEndpoint']['showLiveChatItemEndpoint']['renderer'],
|
||||
lambda x: x['contents'],
|
||||
]
|
||||
parent_item = try_get(renderer, parent_item_getters, dict)
|
||||
if parent_item:
|
||||
renderer = dict_get(parent_item, [
|
||||
'liveChatTextMessageRenderer', 'liveChatPaidMessageRenderer',
|
||||
'liveChatMembershipItemRenderer', 'liveChatPaidStickerRenderer',
|
||||
])
|
||||
if not isinstance(renderer, dict):
|
||||
return None
|
||||
return int_or_none(renderer.get('timestampUsec'), 1000)
|
||||
|
|
|
|||
|
|
@ -2339,7 +2339,6 @@ def process_language(container, base_url, lang_code, sub_name, query):
|
|||
initial_data = self._call_api(
|
||||
'next', {'videoId': video_id}, video_id, fatal=False, api_key=self._extract_api_key(ytcfg))
|
||||
|
||||
if not is_live:
|
||||
try:
|
||||
# This will error if there is no livechat
|
||||
initial_data['contents']['twoColumnWatchNextResults']['conversationBar']['liveChatRenderer']['continuations'][0]['reloadContinuationData']['continuation']
|
||||
|
|
@ -2347,7 +2346,7 @@ def process_language(container, base_url, lang_code, sub_name, query):
|
|||
'url': 'https://www.youtube.com/watch?v=%s' % video_id, # url is needed to set cookies
|
||||
'video_id': video_id,
|
||||
'ext': 'json',
|
||||
'protocol': 'youtube_live_chat_replay',
|
||||
'protocol': 'youtube_live_chat' if is_live else 'youtube_live_chat_replay',
|
||||
}]
|
||||
except (KeyError, IndexError, TypeError):
|
||||
pass
|
||||
|
|
|
|||
Loading…
Reference in a new issue