def walk_s_v2(self, segmenttimeline: SegmentTimeline,
adaptationset: AdaptationSet, period: Period, sindex: int,
uri_item: BaseUri):
stream = DASHStream(sindex, uri_item, self.args.save_dir)
stream.set_skey(adaptationset.id, None)
sindex += 1
return [stream]
def walk_representation(self, adaptationset: AdaptationSet, period: Period,
sindex: int, uri_item: BaseUri):
'''
每一个<Representation></Representation>都对应轨道的一/整段
'''
representations = adaptationset.find(
'Representation') # type: List[Representation]
segmenttemplates = adaptationset.find(
'SegmentTemplate') # type: List[SegmentTemplate]
streams = []
for representation in representations:
# 修正 Representation 节点的 BaseURL
base_url = self.fix_dash_base_url(uri_item.base_url,
representation)
current_uri_item = uri_item.new_base_url(base_url)
logger.debug(f'current_base_url {current_uri_item.base_url}')
stream = DASHStream(sindex, current_uri_item, self.args.save_dir)
sindex += 1
self.walk_contentprotection(adaptationset, stream)
self.walk_contentprotection(representation, stream)
# 给流设置属性
stream.set_skey(adaptationset.id, representation.id)
stream.set_lang(adaptationset.lang)
stream.set_bandwidth(representation.bandwidth)
if representation.codecs is None:
stream.set_codecs(adaptationset.codecs)
else:
stream.set_codecs(representation.codecs)
if representation.mimeType is None:
stream.set_stream_type(adaptationset.mimeType)
else:
stream.set_stream_type(representation.mimeType)
if representation.width is None or representation.height is None:
stream.set_resolution(adaptationset.width,
adaptationset.height)
else:
stream.set_resolution(representation.width,
representation.height)
# 针对字幕直链类型
Roles = adaptationset.find('Role') # type: List[Role]
if stream.stream_type == '' and len(Roles) > 0:
stream.set_stream_type(Roles[0].value)
BaseURLs = representation.find('BaseURL') # type: List[BaseURL]
if len(BaseURLs) == 1:
if len(Roles) == 1 and Roles[0].value in [
'subtitle', 'caption'
]:
base_url = BaseURLs[0].innertext.strip()
if base_url.startswith('http') or base_url.startswith('/'):
stream.set_subtitle_url(base_url)
else:
stream.set_subtitle_url('../' + base_url)
streams.append(stream)
continue
# if len(segmenttemplates) == 0 and len(representation.find('SegmentTimeline')) == 0:
# stream.base2url(period.duration)
# streams.append(stream)
# continue
segmentlists = representation.find(
'SegmentList') # type: List[SegmentList]
r_segmenttemplates = representation.find(
'SegmentTemplate') # type: List[SegmentTemplate]
# 针对视频音频流处理 分情况生成链接
if len(segmentlists) == 1:
self.walk_segmentlist(segmentlists[0], representation, period,
stream)
elif len(segmenttemplates) == 0:
self.walk_segmenttemplate(representation, period, stream)
elif len(segmenttemplates) == 1 and len(
segmenttemplates[0].find('SegmentTimeline')) == 1:
self.walk_segmenttimeline(segmenttemplates[0], representation,
period, stream)
elif len(r_segmenttemplates) == 1 and len(
r_segmenttemplates[0].find('SegmentTimeline')) == 1:
self.walk_segmenttimeline(r_segmenttemplates[0],
representation, period, stream)
elif len(segmenttemplates
) == 1 and segmenttemplates[0].initialization is None:
# tv-player.ap1.admint.biz live
_segmenttemplates = representation.find('SegmentTemplate')
if len(_segmenttemplates) != 1:
# AdaptationSet 的 SegmentTemplate 没有 initialization
# Representation 没有 SegmentTemplate 则跳过
continue
# assert len(_segmenttemplates) == 1, '请报告出现此异常提示的mpd/report plz'
segmenttemplate = segmenttemplates[0]
_segmenttemplate = _segmenttemplates[0]
if segmenttemplate.timescale is not None:
_segmenttemplate.timescale = segmenttemplate.timescale
if segmenttemplate.duration is not None:
_segmenttemplate.duration = segmenttemplate.timescale
self.generate_v1(period, representation.id, _segmenttemplate,
stream)
else:
# SegmentTemplate 和多个 Representation 在同一级
# 那么 SegmentTemplate 的时长参数等就是多个 Representation 的参数
# 同一级的时候 只有一个 SegmentTemplate
self.generate_v1(period, representation.id,
segmenttemplates[0], stream)
streams.append(stream)
return streams