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Part size when downloading files is now 4096 bytes, not 1024

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Lonami Exo 2017-08-24 13:15:33 +02:00
parent 09272ef6fc
commit 940a2896e8
1 changed files with 9 additions and 3 deletions
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12
telethon/telegram_bare_client.py
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@ -458,7 +458,7 @@ class TelegramBareClient:
takes two parameters, (bytes_downloaded, total_bytes). Note that
'total_bytes' simply equals 'file_size', and may be None.
"""
# TODO Clean up this CDN mess
# TODO Clean up the CDN mess below
if not part_size_kb:
if not file_size:
part_size_kb = 64 # Reasonable default
@ -466,8 +466,14 @@ class TelegramBareClient:
part_size_kb = get_appropriated_part_size(file_size)
part_size = int(part_size_kb * 1024)
if part_size % 1024 != 0:
raise ValueError('The part size must be evenly divisible by 1024.')
# https://core.telegram.org/api/files says:
# > part_size % 1024 = 0 (divisible by 1KB)
#
# But https://core.telegram.org/cdn (more recent) says:
# > limit must be divisible by 4096 bytes
# So we just stick to the 4096 limit.
if part_size % 4096 != 0:
raise ValueError('The part size must be evenly divisible by 4096.')
if isinstance(file, str):
# Ensure that we'll be able to download the media