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[extractor/common] Extract DASH subtitle tracks
_extract_mpd_formats and _parse_mpd_formats were extended into _…_formats_and_subtitles; wrappers with old names are provided for compatibility.
This commit is contained in:
Felix S
parent
a0c3b2d5cf
commit
171e59edd4
1 changed files with 54 additions and 27 deletions
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@ -2426,23 +2426,44 @@ def _parse_xspf(self, xspf_doc, playlist_id, xspf_url=None, xspf_base_url=None):
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})
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return entries
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def _extract_mpd_formats(self, mpd_url, video_id, mpd_id=None, note=None, errnote=None, fatal=True, data=None, headers={}, query={}):
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def _extract_mpd_formats(self, *args, **kwargs):
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fmts, subs = self._extract_mpd_formats_and_subtitles(*args, **kwargs)
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if subs:
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self.report_warning(bug_reports_message(
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"Ignoring subtitle tracks found in the DASH manifest; "
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"if any subtitle tracks are missing,"
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))
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return fmts
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def _extract_mpd_formats_and_subtitles(
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self, mpd_url, video_id, mpd_id=None, note=None, errnote=None,
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fatal=True, data=None, headers={}, query={}):
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res = self._download_xml_handle(
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mpd_url, video_id,
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note=note or 'Downloading MPD manifest',
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errnote=errnote or 'Failed to download MPD manifest',
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fatal=fatal, data=data, headers=headers, query=query)
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if res is False:
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return []
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return [], {}
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mpd_doc, urlh = res
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if mpd_doc is None:
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return []
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return [], {}
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mpd_base_url = base_url(urlh.geturl())
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return self._parse_mpd_formats(
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return self._parse_mpd_formats_and_subtitles(
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mpd_doc, mpd_id, mpd_base_url, mpd_url)
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def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', mpd_url=None):
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def _parse_mpd_formats(self, *args, **kwargs):
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fmts, subs = self._parse_mpd_formats_and_subtitles(*args, **kwargs)
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if subs:
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self.report_warning(bug_reports_message(
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"Ignoring subtitle tracks found in the DASH manifest; "
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"if any subtitle tracks are missing,"
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))
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return fmts
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def _parse_mpd_formats_and_subtitles(
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self, mpd_doc, mpd_id=None, mpd_base_url='', mpd_url=None):
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"""
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Parse formats from MPD manifest.
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References:
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@ -2452,7 +2473,7 @@ def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', mpd_url=None
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"""
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if not self._downloader.params.get('dynamic_mpd', True):
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if mpd_doc.get('type') == 'dynamic':
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return []
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return [], {}
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namespace = self._search_regex(r'(?i)^{([^}]+)?}MPD$', mpd_doc.tag, 'namespace', default=None)
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@ -2524,6 +2545,7 @@ def extract_Initialization(source):
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mpd_duration = parse_duration(mpd_doc.get('mediaPresentationDuration'))
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formats = []
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subtitles = {}
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for period in mpd_doc.findall(_add_ns('Period')):
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period_duration = parse_duration(period.get('duration')) or mpd_duration
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period_ms_info = extract_multisegment_info(period, {
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@ -2541,11 +2563,9 @@ def extract_Initialization(source):
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representation_attrib.update(representation.attrib)
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# According to [1, 5.3.7.2, Table 9, page 41], @mimeType is mandatory
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mime_type = representation_attrib['mimeType']
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content_type = mime_type.split('/')[0]
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if content_type == 'text':
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# TODO implement WebVTT downloading
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pass
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elif content_type in ('video', 'audio'):
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content_type = representation_attrib.get('contentType', mime_type.split('/')[0])
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if content_type in ('video', 'audio', 'text'):
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base_url = ''
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for element in (representation, adaptation_set, period, mpd_doc):
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base_url_e = element.find(_add_ns('BaseURL'))
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@ -2562,21 +2582,28 @@ def extract_Initialization(source):
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url_el = representation.find(_add_ns('BaseURL'))
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filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength') if url_el is not None else None)
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bandwidth = int_or_none(representation_attrib.get('bandwidth'))
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f = {
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'format_id': '%s-%s' % (mpd_id, representation_id) if mpd_id else representation_id,
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'manifest_url': mpd_url,
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'ext': mimetype2ext(mime_type),
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'width': int_or_none(representation_attrib.get('width')),
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'height': int_or_none(representation_attrib.get('height')),
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'tbr': float_or_none(bandwidth, 1000),
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'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
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'fps': int_or_none(representation_attrib.get('frameRate')),
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'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
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'format_note': 'DASH %s' % content_type,
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'filesize': filesize,
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'container': mimetype2ext(mime_type) + '_dash',
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}
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f.update(parse_codecs(representation_attrib.get('codecs')))
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if content_type in ('video', 'audio'):
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f = {
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'format_id': '%s-%s' % (mpd_id, representation_id) if mpd_id else representation_id,
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'manifest_url': mpd_url,
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'ext': mimetype2ext(mime_type),
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'width': int_or_none(representation_attrib.get('width')),
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'height': int_or_none(representation_attrib.get('height')),
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'tbr': float_or_none(bandwidth, 1000),
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'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
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'fps': int_or_none(representation_attrib.get('frameRate')),
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'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
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'format_note': 'DASH %s' % content_type,
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'filesize': filesize,
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'container': mimetype2ext(mime_type) + '_dash',
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}
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f.update(parse_codecs(representation_attrib.get('codecs')))
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elif content_type == 'text':
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f = {
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'ext': mimetype2ext(mime_type),
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'manifest_url': mpd_url,
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'filesize': filesize,
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}
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representation_ms_info = extract_multisegment_info(representation, adaption_set_ms_info)
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def prepare_template(template_name, identifiers):
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@ -2726,7 +2753,7 @@ def add_segment_url():
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formats.append(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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return formats, subtitles
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def _extract_ism_formats(self, ism_url, video_id, ism_id=None, note=None, errnote=None, fatal=True, data=None, headers={}, query={}):
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res = self._download_xml_handle(
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