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[fragment] Read downloaded fragments only when needed (#3069)

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Authored by: Lesmiscore
This commit is contained in:
Lesmiscore (Naoya Ozaki)
2022-03-15 12:27:41 +09:00
committed by GitHub
parent d69e55c1d8
commit d71fd41249
4 changed files with 29 additions and 30 deletions
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4
yt_dlp/downloader/ism.py
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@@ -263,9 +263,11 @@ class IsmFD(FragmentFD):
count = 0
while count <= fragment_retries:
try:
success, frag_content = self._download_fragment(ctx, segment['url'], info_dict)
success = self._download_fragment(ctx, segment['url'], info_dict)
if not success:
return False
frag_content = self._read_fragment(ctx)
if not extra_state['ism_track_written']:
tfhd_data = extract_box_data(frag_content, [b'moof', b'traf', b'tfhd'])
info_dict['_download_params']['track_id'] = u32.unpack(tfhd_data[4:8])[0]