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[downloader/dash:hls] Respect --fragment-retries and --skip-unavailable-fragments (Closes #10165, closes #10448)

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Sergey M․
2016-08-27 04:55:55 +07:00
parent 9603b66012
commit 25afc2a783
2 changed files with 41 additions and 12 deletions
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12
youtube_dl/downloader/dash.py
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@@ -38,6 +38,7 @@ class DashSegmentsFD(FragmentFD):
segments_filenames = []
fragment_retries = self.params.get('fragment_retries', 0)
skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
def append_url_to_file(target_url, tmp_filename, segment_name):
target_filename = '%s-%s' % (tmp_filename, segment_name)
@@ -52,19 +53,20 @@ class DashSegmentsFD(FragmentFD):
down.close()
segments_filenames.append(target_sanitized)
break
except (compat_urllib_error.HTTPError, ) as err:
except compat_urllib_error.HTTPError:
# YouTube may often return 404 HTTP error for a fragment causing the
# whole download to fail. However if the same fragment is immediately
# retried with the same request data this usually succeeds (1-2 attemps
# is usually enough) thus allowing to download the whole file successfully.
# So, we will retry all fragments that fail with 404 HTTP error for now.
if err.code != 404:
raise
# Retry fragment
# To be future-proof we will retry all fragments that fail with any
# HTTP error.
count += 1
if count <= fragment_retries:
self.report_retry_fragment(segment_name, count, fragment_retries)
if count > fragment_retries:
if skip_unavailable_fragments:
self.report_skip_fragment(segment_name)
return
self.report_error('giving up after %s fragment retries' % fragment_retries)
return False