254 lines
8.8 KiB
Python
254 lines
8.8 KiB
Python
from youtube import yt_app
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from youtube import util, comments, local_playlist, yt_data_extract
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import settings
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from flask import request
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import flask
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import json
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import html
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import gevent
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import os
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import math
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import traceback
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def get_video_sources(info):
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video_sources = []
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if not settings.theater_mode:
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max_resolution = 360
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else:
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max_resolution = settings.default_resolution
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for format in info['formats']:
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if not all(attr in format for attr in ('height', 'width', 'ext', 'url')):
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continue
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if 'acodec' in format and 'vcodec' in format and format['height'] <= max_resolution:
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video_sources.append({
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'src': format['url'],
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'type': 'video/' + format['ext'],
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'height': format['height'],
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'width': format['width'],
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})
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#### order the videos sources so the preferred resolution is first ###
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video_sources.sort(key=lambda source: source['height'], reverse=True)
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return video_sources
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def get_subtitle_sources(info):
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sources = []
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default_found = False
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default = None
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for language, formats in info['subtitles'].items():
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for format in formats:
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if format['ext'] == 'vtt':
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source = {
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'url': '/' + format['url'],
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'label': language,
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'srclang': language,
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# set as on by default if this is the preferred language and a default-on subtitles mode is in settings
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'on': language == settings.subtitles_language and settings.subtitles_mode > 0,
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}
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if language == settings.subtitles_language:
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default_found = True
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default = source
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else:
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sources.append(source)
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break
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# Put it at the end to avoid browser bug when there are too many languages
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# (in firefox, it is impossible to select a language near the top of the list because it is cut off)
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if default_found:
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sources.append(default)
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try:
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formats = info['automatic_captions'][settings.subtitles_language]
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except KeyError:
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pass
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else:
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for format in formats:
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if format['ext'] == 'vtt':
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sources.append({
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'url': '/' + format['url'],
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'label': settings.subtitles_language + ' - Automatic',
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'srclang': settings.subtitles_language,
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# set as on by default if this is the preferred language and a default-on subtitles mode is in settings
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'on': settings.subtitles_mode == 2 and not default_found,
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})
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return sources
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def get_ordered_music_list_attributes(music_list):
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# get the set of attributes which are used by atleast 1 track
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# so there isn't an empty, extraneous album column which no tracks use, for example
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used_attributes = set()
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for track in music_list:
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used_attributes = used_attributes | track.keys()
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# now put them in the right order
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ordered_attributes = []
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for attribute in ('Artist', 'Title', 'Album'):
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if attribute.lower() in used_attributes:
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ordered_attributes.append(attribute)
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return ordered_attributes
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headers = (
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('Accept', '*/*'),
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('Accept-Language', 'en-US,en;q=0.5'),
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('X-YouTube-Client-Name', '2'),
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('X-YouTube-Client-Version', '2.20180830'),
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) + util.mobile_ua
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def extract_info(video_id):
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polymer_json = util.fetch_url('https://m.youtube.com/watch?v=' + video_id + '&pbj=1', headers=headers, debug_name='watch')
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try:
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polymer_json = json.loads(polymer_json)
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except json.decoder.JSONDecodeError:
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traceback.print_exc()
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return {'error': 'Failed to parse json response'}
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return yt_data_extract.extract_watch_info(polymer_json)
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def video_quality_string(format):
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if 'vcodec' in format:
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result =str(format.get('width', '?')) + 'x' + str(format.get('height', '?'))
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if 'fps' in format:
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result += ' ' + format['fps'] + 'fps'
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return result
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elif 'acodec' in format:
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return 'audio only'
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return '?'
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def audio_quality_string(format):
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if 'acodec' in format:
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result = str(format.get('abr', '?')) + 'k'
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if 'audio_sample_rate' in format:
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result += ' ' + str(format['audio_sample_rate']) + ' Hz'
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return result
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elif 'vcodec' in format:
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return 'video only'
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return '?'
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# from https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/utils.py
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def format_bytes(bytes):
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if bytes is None:
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return 'N/A'
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if type(bytes) is str:
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bytes = float(bytes)
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if bytes == 0.0:
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exponent = 0
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else:
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exponent = int(math.log(bytes, 1024.0))
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suffix = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'][exponent]
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converted = float(bytes) / float(1024 ** exponent)
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return '%.2f%s' % (converted, suffix)
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@yt_app.route('/watch')
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def get_watch_page():
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video_id = request.args['v']
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if len(video_id) < 11:
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flask.abort(404)
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flask.abort(flask.Response('Incomplete video id (too short): ' + video_id))
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lc = request.args.get('lc', '')
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tasks = (
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gevent.spawn(comments.video_comments, video_id, int(settings.default_comment_sorting), lc=lc ),
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gevent.spawn(extract_info, video_id)
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)
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gevent.joinall(tasks)
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comments_info, info = tasks[0].value, tasks[1].value
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if info['error']:
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return flask.render_template('error.html', error_message = info['error'])
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video_info = {
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"duration": util.seconds_to_timestamp(info["duration"] or 0),
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"id": info['id'],
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"title": info['title'],
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"author": info['author'],
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}
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for item in info['related_videos']:
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yt_data_extract.prefix_urls(item)
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yt_data_extract.add_extra_html_info(item)
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if settings.gather_googlevideo_domains:
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with open(os.path.join(settings.data_dir, 'googlevideo-domains.txt'), 'a+', encoding='utf-8') as f:
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url = info['formats'][0]['url']
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subdomain = url[0:url.find(".googlevideo.com")]
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f.write(subdomain + "\n")
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download_formats = []
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for format in info['formats']:
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if 'acodec' in format and 'vcodec' in format:
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codecs_string = format['acodec'] + ', ' + format['vcodec']
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else:
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codecs_string = format.get('acodec') or format.get('vcodec') or '?'
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download_formats.append({
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'url': format['url'],
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'ext': format.get('ext', '?'),
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'audio_quality': audio_quality_string(format),
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'video_quality': video_quality_string(format),
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'file_size': format_bytes(format['file_size']),
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'codecs': codecs_string,
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})
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video_sources = get_video_sources(info)
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video_height = yt_data_extract.default_multi_get(video_sources, 0, 'height', default=360)
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video_width = yt_data_extract.default_multi_get(video_sources, 0, 'width', default=640)
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# 1 second per pixel, or the actual video width
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theater_video_target_width = max(640, info['duration'] or 0, video_width)
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return flask.render_template('watch.html',
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header_playlist_names = local_playlist.get_playlist_names(),
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uploader_channel_url = ('/' + info['author_url']) if info['author_url'] else '',
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upload_date = info['published_date'],
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views = (lambda x: '{:,}'.format(x) if x is not None else "")(info.get("view_count", None)),
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likes = (lambda x: '{:,}'.format(x) if x is not None else "")(info.get("like_count", None)),
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dislikes = (lambda x: '{:,}'.format(x) if x is not None else "")(info.get("dislike_count", None)),
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download_formats = download_formats,
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video_info = json.dumps(video_info),
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video_sources = video_sources,
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subtitle_sources = get_subtitle_sources(info),
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related = info['related_videos'],
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music_list = info['music_list'],
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music_attributes = get_ordered_music_list_attributes(info['music_list']),
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comments_info = comments_info,
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theater_mode = settings.theater_mode,
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related_videos_mode = settings.related_videos_mode,
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comments_mode = settings.comments_mode,
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video_height = video_height,
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theater_video_target_width = theater_video_target_width,
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title = info['title'],
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uploader = info['author'],
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description = info['description'],
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unlisted = info['unlisted'],
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)
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@yt_app.route('/api/<path:dummy>')
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def get_captions(dummy):
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result = util.fetch_url('https://www.youtube.com' + request.full_path)
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result = result.replace(b"align:start position:0%", b"")
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return result
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