diff options
Diffstat (limited to 'youtube_dl/extractor/common.py')
| -rw-r--r-- | youtube_dl/extractor/common.py | 61 |
1 files changed, 50 insertions, 11 deletions
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py index 29544c1a8..b8a76e3cb 100644 --- a/youtube_dl/extractor/common.py +++ b/youtube_dl/extractor/common.py @@ -1481,6 +1481,13 @@ class InfoExtractor(object): compat_etree_fromstring(mpd.encode('utf-8')), mpd_id, mpd_base_url, formats_dict=formats_dict) def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', formats_dict={}): + """ + Parse formats from MPD manifest. + References: + 1. MPEG-DASH Standard, ISO/IEC 23009-1:2014(E), + http://standards.iso.org/ittf/PubliclyAvailableStandards/c065274_ISO_IEC_23009-1_2014.zip + 2. https://en.wikipedia.org/wiki/Dynamic_Adaptive_Streaming_over_HTTP + """ if mpd_doc.get('type') == 'dynamic': return [] @@ -1513,8 +1520,16 @@ class InfoExtractor(object): s_e = segment_timeline.findall(_add_ns('S')) if s_e: ms_info['total_number'] = 0 + ms_info['s'] = [] for s in s_e: - ms_info['total_number'] += 1 + int(s.get('r', '0')) + r = int(s.get('r', 0)) + ms_info['total_number'] += 1 + r + ms_info['s'].append({ + 't': int(s.get('t', 0)), + # @d is mandatory (see [1, 5.3.9.6.2, Table 17, page 60]) + 'd': int(s.attrib['d']), + 'r': r, + }) else: timescale = segment_template.get('timescale') if timescale: @@ -1551,7 +1566,7 @@ class InfoExtractor(object): continue representation_attrib = adaptation_set.attrib.copy() representation_attrib.update(representation.attrib) - # According to page 41 of ISO/IEC 29001-1:2014, @mimeType is mandatory + # 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': @@ -1595,16 +1610,40 @@ class InfoExtractor(object): representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration)) media_template = representation_ms_info['media_template'] media_template = media_template.replace('$RepresentationID$', representation_id) - media_template = re.sub(r'\$(Number|Bandwidth)\$', r'%(\1)d', media_template) - media_template = re.sub(r'\$(Number|Bandwidth)%([^$]+)\$', r'%(\1)\2', media_template) + media_template = re.sub(r'\$(Number|Bandwidth|Time)\$', r'%(\1)d', media_template) + media_template = re.sub(r'\$(Number|Bandwidth|Time)%([^$]+)\$', r'%(\1)\2', media_template) media_template.replace('$$', '$') - representation_ms_info['segment_urls'] = [ - media_template % { - 'Number': segment_number, - 'Bandwidth': representation_attrib.get('bandwidth')} - for segment_number in range( - representation_ms_info['start_number'], - representation_ms_info['total_number'] + representation_ms_info['start_number'])] + + # As per [1, 5.3.9.4.4, Table 16, page 55] $Number$ and $Time$ + # can't be used at the same time + if '%(Number' in media_template: + representation_ms_info['segment_urls'] = [ + media_template % { + 'Number': segment_number, + 'Bandwidth': representation_attrib.get('bandwidth'), + } + for segment_number in range( + representation_ms_info['start_number'], + representation_ms_info['total_number'] + representation_ms_info['start_number'])] + else: + representation_ms_info['segment_urls'] = [] + segment_time = 0 + + def add_segment_url(): + representation_ms_info['segment_urls'].append( + media_template % { + 'Time': segment_time, + 'Bandwidth': representation_attrib.get('bandwidth'), + } + ) + + for num, s in enumerate(representation_ms_info['s']): + segment_time = s.get('t') or segment_time + add_segment_url() + for r in range(s.get('r', 0)): + segment_time += s['d'] + add_segment_url() + segment_time += s['d'] if 'segment_urls' in representation_ms_info: f.update({ 'segment_urls': representation_ms_info['segment_urls'], |