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[downloader/f4m] <metadata> is optional according to the F4M specs
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@ -187,15 +187,18 @@ def build_fragments_list(boot_info):
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return res
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def write_flv_header(stream, metadata):
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"""Writes the FLV header and the metadata to stream"""
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def write_flv_header(stream):
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"""Writes the FLV header to stream"""
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# FLV header
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stream.write(b'FLV\x01')
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stream.write(b'\x05')
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stream.write(b'\x00\x00\x00\x09')
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# FLV File body
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stream.write(b'\x00\x00\x00\x00')
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# FLVTAG
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def write_metadata_tag(stream, metadata):
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"""Writes optional metadata tag to stream"""
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if metadata:
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# Script data
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stream.write(b'\x12')
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# Size of the metadata with 3 bytes
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@ -256,7 +259,11 @@ class F4mFD(FileDownloader):
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bootstrap = self.ydl.urlopen(bootstrap_url).read()
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else:
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bootstrap = base64.b64decode(bootstrap_node.text)
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metadata = base64.b64decode(media.find(_add_ns('metadata')).text)
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metadata_node = media.find(_add_ns('metadata'))
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if metadata_node is not None:
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metadata = base64.b64decode(metadata_node.text)
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else:
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metadata = None
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boot_info = read_bootstrap_info(bootstrap)
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fragments_list = build_fragments_list(boot_info)
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@ -269,7 +276,8 @@ class F4mFD(FileDownloader):
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tmpfilename = self.temp_name(filename)
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(dest_stream, tmpfilename) = sanitize_open(tmpfilename, 'wb')
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write_flv_header(dest_stream, metadata)
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write_flv_header(dest_stream)
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write_metadata_tag(dest_stream, metadata)
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# This dict stores the download progress, it's updated by the progress
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# hook
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