commit 08411970d5fe80479f610006f6e7897f82fbb641
parent dc724e0c8bceee1eda28513d5e9531bc926d9a3b
Author: Yen Chi Hsuan <yan12125@gmail.com>
Date: Mon, 1 Feb 2016 18:31:49 +0800
Merge pull request #8374 from yan12125/facebook-dash
Facebook DASH formats
Diffstat:
3 files changed, 152 insertions(+), 111 deletions(-)
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
@@ -1330,6 +1330,83 @@ class InfoExtractor(object):
})
return entries
+ def _download_dash_manifest(self, dash_manifest_url, video_id, fatal=True):
+ return self._download_xml(
+ dash_manifest_url, video_id,
+ note='Downloading DASH manifest',
+ errnote='Could not download DASH manifest',
+ fatal=fatal)
+
+ def _extract_dash_manifest_formats(self, dash_manifest_url, video_id, fatal=True, namespace=None, formats_dict={}):
+ dash_doc = self._download_dash_manifest(dash_manifest_url, video_id, fatal)
+ if dash_doc is False:
+ return []
+
+ return self._parse_dash_manifest(
+ dash_doc, namespace=namespace, formats_dict=formats_dict)
+
+ def _parse_dash_manifest(self, dash_doc, namespace=None, formats_dict={}):
+ def _add_ns(path):
+ return self._xpath_ns(path, namespace)
+
+ formats = []
+ for a in dash_doc.findall('.//' + _add_ns('AdaptationSet')):
+ mime_type = a.attrib.get('mimeType')
+ for r in a.findall(_add_ns('Representation')):
+ mime_type = r.attrib.get('mimeType') or mime_type
+ url_el = r.find(_add_ns('BaseURL'))
+ if mime_type == 'text/vtt':
+ # TODO implement WebVTT downloading
+ pass
+ elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
+ segment_list = r.find(_add_ns('SegmentList'))
+ format_id = r.attrib['id']
+ video_url = url_el.text if url_el is not None else None
+ filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength') if url_el is not None else None)
+ f = {
+ 'format_id': format_id,
+ 'url': video_url,
+ 'width': int_or_none(r.attrib.get('width')),
+ 'height': int_or_none(r.attrib.get('height')),
+ 'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
+ 'asr': int_or_none(r.attrib.get('audioSamplingRate')),
+ 'filesize': filesize,
+ 'fps': int_or_none(r.attrib.get('frameRate')),
+ }
+ if segment_list is not None:
+ initialization_url = segment_list.find(_add_ns('Initialization')).attrib['sourceURL']
+ f.update({
+ 'initialization_url': initialization_url,
+ 'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall(_add_ns('SegmentURL'))],
+ 'protocol': 'http_dash_segments',
+ })
+ if not f.get('url'):
+ f['url'] = initialization_url
+ try:
+ existing_format = next(
+ fo for fo in formats
+ if fo['format_id'] == format_id)
+ except StopIteration:
+ full_info = formats_dict.get(format_id, {}).copy()
+ full_info.update(f)
+ codecs = r.attrib.get('codecs')
+ if codecs:
+ if mime_type.startswith('video/'):
+ vcodec, acodec = codecs, 'none'
+ else: # mime_type.startswith('audio/')
+ vcodec, acodec = 'none', codecs
+
+ full_info.update({
+ 'vcodec': vcodec,
+ 'acodec': acodec,
+ })
+ formats.append(full_info)
+ else:
+ existing_format.update(f)
+ else:
+ self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
+ return formats
+
def _live_title(self, name):
""" Generate the title for a live video """
now = datetime.datetime.now()
diff --git a/youtube_dl/extractor/facebook.py b/youtube_dl/extractor/facebook.py
@@ -6,9 +6,11 @@ import socket
from .common import InfoExtractor
from ..compat import (
+ compat_etree_fromstring,
compat_http_client,
compat_urllib_error,
compat_urllib_parse_unquote,
+ compat_urllib_parse_unquote_plus,
)
from ..utils import (
error_to_compat_str,
@@ -44,6 +46,9 @@ class FacebookIE(InfoExtractor):
_CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
_NETRC_MACHINE = 'facebook'
IE_NAME = 'facebook'
+
+ _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
+
_TESTS = [{
'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
'md5': '6a40d33c0eccbb1af76cf0485a052659',
@@ -66,6 +71,16 @@ class FacebookIE(InfoExtractor):
'title'
]
}, {
+ 'note': 'Video with DASH manifest',
+ 'url': 'https://www.facebook.com/video.php?v=957955867617029',
+ 'md5': '54706e4db4f5ad58fbad82dde1f1213f',
+ 'info_dict': {
+ 'id': '957955867617029',
+ 'ext': 'mp4',
+ 'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
+ 'uploader': 'Demy de Zeeuw',
+ },
+ }, {
'url': 'https://www.facebook.com/video.php?v=10204634152394104',
'only_matching': True,
}, {
@@ -147,8 +162,9 @@ class FacebookIE(InfoExtractor):
def _real_extract(self, url):
video_id = self._match_id(url)
- url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
- webpage = self._download_webpage(url, video_id)
+ req = sanitized_Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
+ req.add_header('User-Agent', self._CHROME_USER_AGENT)
+ webpage = self._download_webpage(req, video_id)
video_data = None
@@ -197,9 +213,16 @@ class FacebookIE(InfoExtractor):
'url': src,
'preference': -10 if format_id == 'progressive' else 0,
})
+ dash_manifest = f[0].get('dash_manifest')
+ if dash_manifest:
+ formats.extend(self._parse_dash_manifest(
+ compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest)),
+ namespace='urn:mpeg:dash:schema:mpd:2011'))
if not formats:
raise ExtractorError('Cannot find video formats')
+ self._sort_formats(formats)
+
video_title = self._html_search_regex(
r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
default=None)
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
@@ -316,55 +316,55 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10},
# DASH mp4 video
- '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '138': {'ext': 'mp4', 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40}, # Height can vary (https://github.com/rg3/youtube-dl/issues/4559)
- '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
- '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'fps': 60, 'preference': -40},
- '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'fps': 60, 'preference': -40},
- '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'h264', 'preference': -40},
+ '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40}, # Height can vary (https://github.com/rg3/youtube-dl/issues/4559)
+ '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
+ '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60, 'preference': -40},
+ '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60, 'preference': -40},
+ '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264', 'preference': -40},
# Dash mp4 audio
- '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 48, 'preference': -50, 'container': 'm4a_dash'},
- '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 128, 'preference': -50, 'container': 'm4a_dash'},
- '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 256, 'preference': -50, 'container': 'm4a_dash'},
+ '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'preference': -50, 'container': 'm4a_dash'},
+ '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'preference': -50, 'container': 'm4a_dash'},
+ '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'preference': -50, 'container': 'm4a_dash'},
# Dash webm
- '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
- '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp9', 'preference': -40},
- '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
+ '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
+ '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9', 'preference': -40},
+ '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
# itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
- '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
- '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
- '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
- '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'preference': -40},
- '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
+ '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
+ '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
+ '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
+ '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'preference': -40},
+ '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60, 'preference': -40},
# Dash webm audio
- '171': {'ext': 'webm', 'acodec': 'vorbis', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 128, 'preference': -50},
- '172': {'ext': 'webm', 'acodec': 'vorbis', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 256, 'preference': -50},
+ '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128, 'preference': -50},
+ '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256, 'preference': -50},
# Dash webm audio with opus inside
- '249': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50, 'preference': -50},
- '250': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70, 'preference': -50},
- '251': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160, 'preference': -50},
+ '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50, 'preference': -50},
+ '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70, 'preference': -50},
+ '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160, 'preference': -50},
# RTMP (unnamed)
'_rtmp': {'protocol': 'rtmp'},
@@ -1035,73 +1035,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
- def _parse_dash_manifest(
- self, video_id, dash_manifest_url, player_url, age_gate, fatal=True):
- def decrypt_sig(mobj):
- s = mobj.group(1)
- dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
- return '/signature/%s' % dec_s
- dash_manifest_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, dash_manifest_url)
- dash_doc = self._download_xml(
- dash_manifest_url, video_id,
- note='Downloading DASH manifest',
- errnote='Could not download DASH manifest',
- fatal=fatal)
-
- if dash_doc is False:
- return []
-
- formats = []
- for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
- mime_type = a.attrib.get('mimeType')
- for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
- url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
- if url_el is None:
- continue
- if mime_type == 'text/vtt':
- # TODO implement WebVTT downloading
- pass
- elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
- segment_list = r.find('{urn:mpeg:DASH:schema:MPD:2011}SegmentList')
- format_id = r.attrib['id']
- video_url = url_el.text
- filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
- f = {
- 'format_id': format_id,
- 'url': video_url,
- 'width': int_or_none(r.attrib.get('width')),
- 'height': int_or_none(r.attrib.get('height')),
- 'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
- 'asr': int_or_none(r.attrib.get('audioSamplingRate')),
- 'filesize': filesize,
- 'fps': int_or_none(r.attrib.get('frameRate')),
- }
- if segment_list is not None:
- f.update({
- 'initialization_url': segment_list.find('{urn:mpeg:DASH:schema:MPD:2011}Initialization').attrib['sourceURL'],
- 'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall('{urn:mpeg:DASH:schema:MPD:2011}SegmentURL')],
- 'protocol': 'http_dash_segments',
- })
- try:
- existing_format = next(
- fo for fo in formats
- if fo['format_id'] == format_id)
- except StopIteration:
- full_info = self._formats.get(format_id, {}).copy()
- full_info.update(f)
- codecs = r.attrib.get('codecs')
- if codecs:
- if full_info.get('acodec') == 'none':
- full_info['vcodec'] = codecs
- elif full_info.get('vcodec') == 'none':
- full_info['acodec'] = codecs
- formats.append(full_info)
- else:
- existing_format.update(f)
- else:
- self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
- return formats
-
def _real_extract(self, url):
url, smuggled_data = unsmuggle_url(url, {})
@@ -1533,8 +1466,16 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
for dash_manifest_url in dash_mpds:
dash_formats = {}
try:
- for df in self._parse_dash_manifest(
- video_id, dash_manifest_url, player_url, age_gate, dash_mpd_fatal):
+ def decrypt_sig(mobj):
+ s = mobj.group(1)
+ dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
+ return '/signature/%s' % dec_s
+
+ dash_manifest_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, dash_manifest_url)
+
+ for df in self._extract_dash_manifest_formats(
+ dash_manifest_url, video_id, fatal=dash_mpd_fatal,
+ namespace='urn:mpeg:DASH:schema:MPD:2011', formats_dict=self._formats):
# Do not overwrite DASH format found in some previous DASH manifest
if df['format_id'] not in dash_formats:
dash_formats[df['format_id']] = df
