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-rw-r--r--youtube_dl/downloader/http.py29
1 files changed, 21 insertions, 8 deletions
diff --git a/youtube_dl/downloader/http.py b/youtube_dl/downloader/http.py
index f79e6a995..462be2739 100644
--- a/youtube_dl/downloader/http.py
+++ b/youtube_dl/downloader/http.py
@@ -128,16 +128,21 @@ class HttpFD(FileDownloader):
byte_counter = 0 + resume_len
block_size = self.params.get('buffersize', 1024)
start = time.time()
+
+ # measure time over whole while-loop, so slow_down() and best_block_size() work together properly
+ now = None # needed for slow_down() in the first loop run
+ before = start # start measuring
while True:
+
# Download and write
- before = time.time()
data_block = data.read(block_size if not is_test else min(block_size, data_len - byte_counter))
- after = time.time()
+ byte_counter += len(data_block)
+
+ # exit loop when download is finished
if len(data_block) == 0:
break
- byte_counter += len(data_block)
- # Open file just in time
+ # Open destination file just in time
if stream is None:
try:
(stream, tmpfilename) = sanitize_open(tmpfilename, open_mode)
@@ -153,11 +158,22 @@ class HttpFD(FileDownloader):
self.to_stderr(u"\n")
self.report_error(u'unable to write data: %s' % str(err))
return False
+
+ # Apply rate limit
+ self.slow_down(start, now, byte_counter - resume_len)
+
+ # end measuring of one loop run
+ now = time.time()
+ after = now
+
+ # Adjust block size
if not self.params.get('noresizebuffer', False):
block_size = self.best_block_size(after - before, len(data_block))
+ before = after
+
# Progress message
- speed = self.calc_speed(start, time.time(), byte_counter - resume_len)
+ speed = self.calc_speed(start, now, byte_counter - resume_len)
if data_len is None:
eta = percent = None
else:
@@ -178,9 +194,6 @@ class HttpFD(FileDownloader):
if is_test and byte_counter == data_len:
break
- # Apply rate limit
- self.slow_down(start, byte_counter - resume_len)
-
if stream is None:
self.to_stderr(u"\n")
self.report_error(u'Did not get any data blocks')