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[extractor/youtube] Construct fragment list lazily

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Building fragment list for all formats take significant time for large videos
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pukkandan 2023-03-11 22:46:47 +05:30
parent 86cb922118
commit 2a23d92d9e
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GPG Key ID: 7EEE9E1E817D0A39
1 changed files with 2 additions and 2 deletions
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yt_dlp/extractor/youtube.py
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@ -3777,11 +3777,11 @@ def _extract_formats_and_subtitles(self, streaming_data, video_id, player_url, l
**dct, **dct,
'format_id': f'{dct["format_id"]}-dashy' if all_formats else dct['format_id'], 'format_id': f'{dct["format_id"]}-dashy' if all_formats else dct['format_id'],
'protocol': 'http_dash_segments', 'protocol': 'http_dash_segments',
'fragments': [{ 'fragments': LazyList({
'url': update_url_query(dct['url'], { 'url': update_url_query(dct['url'], {
'range': f'{range_start}-{min(range_start + CHUNK_SIZE - 1, dct["filesize"])}' 'range': f'{range_start}-{min(range_start + CHUNK_SIZE - 1, dct["filesize"])}'
}) })
} for range_start in range(0, dct['filesize'], CHUNK_SIZE)] } for range_start in range(0, dct['filesize'], CHUNK_SIZE))
} }
if not all_formats: if not all_formats:
continue continue