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@@ -1481,6 +1481,13 @@ class InfoExtractor(object):
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compat_etree_fromstring(mpd.encode('utf-8')), mpd_id, mpd_base_url, formats_dict=formats_dict)
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def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', formats_dict={}):
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+ """
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+ Parse formats from MPD manifest.
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+ References:
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+ 1. MPEG-DASH Standard, ISO/IEC 23009-1:2014(E),
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+ http://standards.iso.org/ittf/PubliclyAvailableStandards/c065274_ISO_IEC_23009-1_2014.zip
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+ 2. https://en.wikipedia.org/wiki/Dynamic_Adaptive_Streaming_over_HTTP
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+ """
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if mpd_doc.get('type') == 'dynamic':
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return []
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@@ -1513,8 +1520,16 @@ class InfoExtractor(object):
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s_e = segment_timeline.findall(_add_ns('S'))
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if s_e:
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ms_info['total_number'] = 0
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+ ms_info['s'] = []
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for s in s_e:
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- ms_info['total_number'] += 1 + int(s.get('r', '0'))
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+ r = int(s.get('r', 0))
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+ ms_info['total_number'] += 1 + r
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+ ms_info['s'].append({
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+ 't': int(s.get('t', 0)),
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+ # @d is mandatory (see [1, 5.3.9.6.2, Table 17, page 60])
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+ 'd': int(s.attrib['d']),
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+ 'r': r,
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+ })
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else:
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timescale = segment_template.get('timescale')
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if timescale:
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@@ -1551,7 +1566,7 @@ class InfoExtractor(object):
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continue
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representation_attrib = adaptation_set.attrib.copy()
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representation_attrib.update(representation.attrib)
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- # According to page 41 of ISO/IEC 29001-1:2014, @mimeType is mandatory
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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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@@ -1595,16 +1610,40 @@ class InfoExtractor(object):
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representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration))
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media_template = representation_ms_info['media_template']
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media_template = media_template.replace('$RepresentationID$', representation_id)
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- media_template = re.sub(r'\$(Number|Bandwidth)\$', r'%(\1)d', media_template)
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- media_template = re.sub(r'\$(Number|Bandwidth)%([^$]+)\$', r'%(\1)\2', media_template)
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+ media_template = re.sub(r'\$(Number|Bandwidth|Time)\$', r'%(\1)d', media_template)
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+ media_template = re.sub(r'\$(Number|Bandwidth|Time)%([^$]+)\$', r'%(\1)\2', media_template)
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media_template.replace('$$', '$')
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- representation_ms_info['segment_urls'] = [
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- media_template % {
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- 'Number': segment_number,
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- 'Bandwidth': representation_attrib.get('bandwidth')}
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- for segment_number in range(
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- representation_ms_info['start_number'],
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- representation_ms_info['total_number'] + representation_ms_info['start_number'])]
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+
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+ # As per [1, 5.3.9.4.4, Table 16, page 55] $Number$ and $Time$
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+ # can't be used at the same time
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+ if '%(Number' in media_template:
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+ representation_ms_info['segment_urls'] = [
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+ media_template % {
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+ 'Number': segment_number,
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+ 'Bandwidth': representation_attrib.get('bandwidth'),
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+ }
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+ for segment_number in range(
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+ representation_ms_info['start_number'],
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+ representation_ms_info['total_number'] + representation_ms_info['start_number'])]
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+ else:
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+ representation_ms_info['segment_urls'] = []
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+ segment_time = 0
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+
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+ def add_segment_url():
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+ representation_ms_info['segment_urls'].append(
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+ media_template % {
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+ 'Time': segment_time,
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+ 'Bandwidth': representation_attrib.get('bandwidth'),
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+ }
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+ )
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+
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+ for num, s in enumerate(representation_ms_info['s']):
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+ segment_time = s.get('t') or segment_time
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+ add_segment_url()
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+ for r in range(s.get('r', 0)):
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+ segment_time += s['d']
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+ add_segment_url()
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+ segment_time += s['d']
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if 'segment_urls' in representation_ms_info:
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f.update({
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'segment_urls': representation_ms_info['segment_urls'],
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Sergey M․