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[downloader/fragment] More smooth calculations 

`downloaded_bytes` is now updated on each fragment progress hook invocation
pull/8215/merge
Sergey M․ 2016-01-12 23:18:38 +06:00
rodzic 9cb1a06b6c
commit 709185a264
1 zmienionych plików z 16 dodań i 6 usunięć
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22
youtube_dl/downloader/fragment.py
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@ -58,6 +58,11 @@ class FragmentFD(FileDownloader):
'frag_count': total_frags,
'filename': ctx['filename'],
'tmpfilename': ctx['tmpfilename'],
# Total complete fragments downloaded so far in bytes
'_complete_frags_downloaded_bytes': 0,
# Amount of fragment's bytes downloaded by the time of the previous
# frag progress hook invocation
'_prev_frag_downloaded_bytes': 0,
}
start = time.time()
ctx['started'] = start
@ -67,22 +72,27 @@ class FragmentFD(FileDownloader):
return
frag_total_bytes = s.get('total_bytes') or 0
if s['status'] == 'finished':
state['downloaded_bytes'] += frag_total_bytes
state['frag_index'] += 1
estimated_size = (
(state['downloaded_bytes'] + frag_total_bytes) /
(state['_complete_frags_downloaded_bytes'] + frag_total_bytes) /
(state['frag_index'] + 1) * total_frags)
time_now = time.time()
state['total_bytes_estimate'] = estimated_size
state['elapsed'] = time_now - start
if s['status'] != 'finished':
if s['status'] == 'finished':
state['frag_index'] += 1
state['downloaded_bytes'] += frag_total_bytes - state['_prev_frag_downloaded_bytes']
state['_complete_frags_downloaded_bytes'] = state['downloaded_bytes']
state['_prev_frag_downloaded_bytes'] = 0
else:
frag_downloaded_bytes = s['downloaded_bytes']
state['downloaded_bytes'] += frag_downloaded_bytes - state['_prev_frag_downloaded_bytes']
state['eta'] = self.calc_eta(
start, time_now, estimated_size,
state['downloaded_bytes'] + s['downloaded_bytes'])
state['downloaded_bytes'])
state['speed'] = s.get('speed')
state['_prev_frag_downloaded_bytes'] = frag_downloaded_bytes
self._hook_progress(state)
ctx['dl'].add_progress_hook(frag_progress_hook)