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[extractor/common] Extract DASH subtitle tracks

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_extract_mpd_formats and _parse_mpd_formats were extended into
_…_formats_and_subtitles; wrappers with old names are provided
for compatibility.
pull/310/head
Felix S 4 years ago
parent a0c3b2d5cf
commit 171e59edd4
1 changed files with 54 additions and 27 deletions
Show Stats Download Patch File Download Diff File

81
yt_dlp/extractor/common.py
Unescape Escape View File

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

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