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[common] _parse_dash_manifest() from youtube.py
This commit is contained in:
Yen Chi Hsuan
parent
05d0d131a7
commit
17b598d30c
2 changed files with 52 additions and 52 deletions
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@ -1330,6 +1330,58 @@ class InfoExtractor(object):
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})
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return entries
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def _parse_dash_manifest(self, video_id, dash_doc, fatal=True):
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formats = []
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for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
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mime_type = a.attrib.get('mimeType')
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for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
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url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
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if url_el is None:
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continue
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if mime_type == 'text/vtt':
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# TODO implement WebVTT downloading
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pass
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elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
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segment_list = r.find('{urn:mpeg:DASH:schema:MPD:2011}SegmentList')
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format_id = r.attrib['id']
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video_url = url_el.text
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filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
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f = {
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'format_id': format_id,
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'url': video_url,
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'width': int_or_none(r.attrib.get('width')),
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'height': int_or_none(r.attrib.get('height')),
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'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
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'asr': int_or_none(r.attrib.get('audioSamplingRate')),
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'filesize': filesize,
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'fps': int_or_none(r.attrib.get('frameRate')),
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}
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if segment_list is not None:
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f.update({
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'initialization_url': segment_list.find('{urn:mpeg:DASH:schema:MPD:2011}Initialization').attrib['sourceURL'],
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'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall('{urn:mpeg:DASH:schema:MPD:2011}SegmentURL')],
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'protocol': 'http_dash_segments',
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})
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try:
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existing_format = next(
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fo for fo in formats
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if fo['format_id'] == format_id)
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except StopIteration:
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full_info = self._formats.get(format_id, {}).copy()
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full_info.update(f)
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codecs = r.attrib.get('codecs')
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if codecs:
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if full_info.get('acodec') == 'none':
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full_info['vcodec'] = codecs
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elif full_info.get('vcodec') == 'none':
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full_info['acodec'] = codecs
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formats.append(full_info)
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else:
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existing_format.update(f)
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else:
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self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
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return formats
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def _live_title(self, name):
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""" Generate the title for a live video """
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now = datetime.datetime.now()
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@ -1035,58 +1035,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
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return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
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def _parse_dash_manifest(self, video_id, dash_doc, fatal=True):
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formats = []
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for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
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mime_type = a.attrib.get('mimeType')
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for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
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url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
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if url_el is None:
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continue
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if mime_type == 'text/vtt':
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# TODO implement WebVTT downloading
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pass
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elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
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segment_list = r.find('{urn:mpeg:DASH:schema:MPD:2011}SegmentList')
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format_id = r.attrib['id']
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video_url = url_el.text
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filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
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f = {
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'format_id': format_id,
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'url': video_url,
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'width': int_or_none(r.attrib.get('width')),
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'height': int_or_none(r.attrib.get('height')),
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'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
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'asr': int_or_none(r.attrib.get('audioSamplingRate')),
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'filesize': filesize,
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'fps': int_or_none(r.attrib.get('frameRate')),
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}
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if segment_list is not None:
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f.update({
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'initialization_url': segment_list.find('{urn:mpeg:DASH:schema:MPD:2011}Initialization').attrib['sourceURL'],
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'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall('{urn:mpeg:DASH:schema:MPD:2011}SegmentURL')],
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'protocol': 'http_dash_segments',
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})
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try:
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existing_format = next(
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fo for fo in formats
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if fo['format_id'] == format_id)
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except StopIteration:
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full_info = self._formats.get(format_id, {}).copy()
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full_info.update(f)
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codecs = r.attrib.get('codecs')
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if codecs:
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if full_info.get('acodec') == 'none':
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full_info['vcodec'] = codecs
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elif full_info.get('vcodec') == 'none':
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full_info['acodec'] = codecs
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formats.append(full_info)
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else:
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existing_format.update(f)
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else:
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self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
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return formats
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def _real_extract(self, url):
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url, smuggled_data = unsmuggle_url(url, {})
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