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[downloader/ism] Prevent writing the header again when resuming an interrupted download
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@ -221,10 +221,13 @@ def real_download(self, filename, info_dict):
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self._prepare_and_start_frag_download(ctx)
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extra_state = ctx.setdefault('extra_state', {
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'ism_track_written': False,
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})
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fragment_retries = self.params.get('fragment_retries', 0)
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skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
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track_written = False
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frag_index = 0
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for i, segment in enumerate(segments):
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frag_index += 1
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@ -236,11 +239,11 @@ def real_download(self, filename, info_dict):
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success, frag_content = self._download_fragment(ctx, segment['url'], info_dict)
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if not success:
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return False
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if not track_written:
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if not extra_state['ism_track_written']:
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tfhd_data = extract_box_data(frag_content, [b'moof', b'traf', b'tfhd'])
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info_dict['_download_params']['track_id'] = u32.unpack(tfhd_data[4:8])[0]
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write_piff_header(ctx['dest_stream'], info_dict['_download_params'])
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track_written = True
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extra_state['ism_track_written'] = True
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self._append_fragment(ctx, frag_content)
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break
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except compat_urllib_error.HTTPError as err:
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