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Eliminated several seconds of delay when loading big mp4 file

This commit is contained in:
Alexander Zhou 2022-05-27 11:49:42 +08:00 committed by Serdar Dogruyol - Sedo セド
parent f706c7877d
commit d53d253620
1 changed files with 1 additions and 14 deletions
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15
src/kemal/helpers/helpers.cr
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@ -216,20 +216,7 @@ private def multipart(file, env : HTTP::Server::Context)
env.response.headers["Accept-Ranges"] = "bytes"
env.response.headers["Content-Range"] = "bytes #{startb}-#{endb}/#{fileb}" # MUST
if startb > 1024
skipped = 0_i64
# file.skip only accepts values less or equal to 1024 (buffer size, undocumented)
until (increase_skipped = skipped + 1024_i64) > startb
file.skip(1024)
skipped = increase_skipped
end
if (skipped_minus_startb = skipped - startb) > 0
file.skip skipped_minus_startb
end
else
file.skip(startb)
end
file.seek(startb)
IO.copy(file, env.response, content_length)
else
env.response.content_length = fileb