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@ -74,8 +74,13 @@ class FragmentFD(FileDownloader):
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return not ctx['live'] and not ctx['tmpfilename'] == '-'
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def _read_ytdl_file(self, ctx):
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assert 'ytdl_corrupt' not in ctx
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stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'r')
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try:
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ctx['fragment_index'] = json.loads(stream.read())['downloader']['current_fragment']['index']
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except Exception:
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ctx['ytdl_corrupt'] = True
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finally:
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stream.close()
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def _write_ytdl_file(self, ctx):
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@ -158,11 +163,17 @@ class FragmentFD(FileDownloader):
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if self.__do_ytdl_file(ctx):
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if os.path.isfile(encodeFilename(self.ytdl_filename(ctx['filename']))):
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self._read_ytdl_file(ctx)
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if ctx['fragment_index'] > 0 and resume_len == 0:
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is_corrupt = ctx.get('ytdl_corrupt') is True
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is_inconsistent = ctx['fragment_index'] > 0 and resume_len == 0
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if is_corrupt or is_inconsistent:
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message = (
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'.ytdl file is corrupt' if is_corrupt else
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'Inconsistent state of incomplete fragment download')
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self.report_warning(
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'Inconsistent state of incomplete fragment download. '
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'Restarting from the beginning...')
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'%s. Restarting from the beginning...' % message)
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ctx['fragment_index'] = resume_len = 0
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if 'ytdl_corrupt' in ctx:
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del ctx['ytdl_corrupt']
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self._write_ytdl_file(ctx)
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else:
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self._write_ytdl_file(ctx)
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