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https://github.com/ytdl-org/youtube-dl
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[extractor/youtube] Construct fragment list lazily
Ref: yt-dlp/yt-dlp/commit/e389d17 See: yt-dlp/yt-dlp#6517
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@ -31,6 +31,7 @@ from ..utils import (
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get_element_by_attribute,
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int_or_none,
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js_to_json,
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LazyList,
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merge_dicts,
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mimetype2ext,
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parse_codecs,
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@ -1986,9 +1987,19 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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itags = []
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itag_qualities = {}
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q = qualities(['tiny', 'small', 'medium', 'large', 'hd720', 'hd1080', 'hd1440', 'hd2160', 'hd2880', 'highres'])
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CHUNK_SIZE = 10 << 20
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streaming_data = player_response.get('streamingData') or {}
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streaming_formats = streaming_data.get('formats') or []
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streaming_formats.extend(streaming_data.get('adaptiveFormats') or [])
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def build_fragments(f):
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return LazyList({
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'url': update_url_query(f['url'], {
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'range': '{0}-{1}'.format(range_start, min(range_start + CHUNK_SIZE - 1, f['filesize']))
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})
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} for range_start in range(0, f['filesize'], CHUNK_SIZE))
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for fmt in streaming_formats:
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if fmt.get('targetDurationSec') or fmt.get('drmFamilies'):
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continue
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@ -2048,15 +2059,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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if no_video:
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dct['abr'] = tbr
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if no_audio or no_video:
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CHUNK_SIZE = 10 << 20
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# avoid Youtube throttling
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dct.update({
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'protocol': 'http_dash_segments',
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'fragments': [{
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'url': update_url_query(dct['url'], {
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'range': '{0}-{1}'.format(range_start, min(range_start + CHUNK_SIZE - 1, dct['filesize']))
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})
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} for range_start in range(0, dct['filesize'], CHUNK_SIZE)]
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'fragments': build_fragments(dct),
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} if dct['filesize'] else {
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'downloader_options': {'http_chunk_size': CHUNK_SIZE} # No longer useful?
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})
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