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https://gitlab.com/dstftw/youtube-dl.git
synced 2020-11-16 09:42:26 +00:00
[extractor/common] Extract f4m and m3u8 formats, subtitles and info
This commit is contained in:
Sergey M․
parent
3f125c8c70
commit
a107193e4b
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@ -18,6 +18,7 @@ from ..compat import (
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compat_HTTPError,
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compat_http_client,
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compat_urllib_error,
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compat_urllib_parse,
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compat_urllib_parse_urlparse,
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compat_urllib_request,
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compat_urlparse,
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@ -37,6 +38,7 @@ from ..utils import (
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RegexNotFoundError,
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sanitize_filename,
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unescapeHTML,
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url_basename,
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)
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@ -978,69 +980,165 @@ class InfoExtractor(object):
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self._sort_formats(formats)
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return formats
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# TODO: improve extraction
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def _extract_smil_formats(self, smil_url, video_id, fatal=True):
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smil = self._download_xml(
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smil_url, video_id, 'Downloading SMIL file',
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'Unable to download SMIL file', fatal=fatal)
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@staticmethod
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def _xpath_ns(path, namespace=None):
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if not namespace:
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return path
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out = []
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for c in path.split('/'):
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if not c or c == '.':
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out.append(c)
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else:
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out.append('{%s}%s' % (namespace, c))
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return '/'.join(out)
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def _extract_smil_formats(self, smil_url, video_id, fatal=True, f4m_params=None):
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smil = self._download_smil(smil_url, video_id, fatal=fatal)
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if smil is False:
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assert not fatal
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return []
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base = smil.find('./head/meta').get('base')
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namespace = self._search_regex(
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r'{([^}]+)?}smil', smil.tag, 'namespace', default=None)
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return self._parse_smil_formats(
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smil, smil_url, video_id, namespace=namespace, f4m_params=f4m_params)
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def _extract_smil_info(self, smil_url, video_id, fatal=True, f4m_params=None):
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smil = self._download_smil(smil_url, video_id, fatal=fatal)
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if smil is False:
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return {}
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return self._parse_smil(smil, smil_url, video_id, f4m_params=f4m_params)
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def _download_smil(self, smil_url, video_id, fatal=True):
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return self._download_xml(
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smil_url, video_id, 'Downloading SMIL file',
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'Unable to download SMIL file', fatal=fatal)
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def _parse_smil(self, smil, smil_url, video_id, f4m_params=None):
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namespace = self._search_regex(
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r'{([^}]+)?}smil', smil.tag, 'namespace', default=None)
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formats = self._parse_smil_formats(
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smil, smil_url, video_id, namespace=namespace, f4m_params=f4m_params)
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subtitles = self._parse_smil_subtitles(smil, namespace=namespace)
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video_id = os.path.splitext(url_basename(smil_url))[0]
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title = None
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description = None
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for meta in smil.findall(self._xpath_ns('./head/meta', namespace)):
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name = meta.attrib.get('name')
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content = meta.attrib.get('content')
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if not name or not content:
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continue
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if not title and name == 'title':
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title = content
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elif not description and name in ('description', 'abstract'):
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description = content
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return {
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'id': video_id,
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'title': title or video_id,
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'description': description,
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'formats': formats,
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'subtitles': subtitles,
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}
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def _parse_smil_formats(self, smil, smil_url, video_id, namespace=None, f4m_params=None):
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base = smil_url
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for meta in smil.findall(self._xpath_ns('./head/meta', namespace)):
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b = meta.get('base') or meta.get('httpBase')
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if b:
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base = b
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break
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formats = []
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rtmp_count = 0
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if smil.findall('./body/seq/video'):
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video = smil.findall('./body/seq/video')[0]
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fmts, rtmp_count = self._parse_smil_video(video, video_id, base, rtmp_count)
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formats.extend(fmts)
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else:
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for video in smil.findall('./body/switch/video'):
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fmts, rtmp_count = self._parse_smil_video(video, video_id, base, rtmp_count)
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formats.extend(fmts)
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http_count = 0
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videos = smil.findall(self._xpath_ns('.//video', namespace))
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for video in videos:
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src = video.get('src')
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if not src:
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continue
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bitrate = int_or_none(video.get('system-bitrate') or video.get('systemBitrate'), 1000)
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filesize = int_or_none(video.get('size') or video.get('fileSize'))
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width = int_or_none(video.get('width'))
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height = int_or_none(video.get('height'))
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proto = video.get('proto')
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ext = video.get('ext')
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src_ext = determine_ext(src)
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streamer = video.get('streamer') or base
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if proto == 'rtmp' or streamer.startswith('rtmp'):
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rtmp_count += 1
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formats.append({
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'url': streamer,
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'play_path': src,
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'ext': 'flv',
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'format_id': 'rtmp-%d' % (rtmp_count if bitrate is None else bitrate),
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'tbr': bitrate,
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'filesize': filesize,
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'width': width,
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'height': height,
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})
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continue
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src_url = src if src.startswith('http') else compat_urlparse.urljoin(base, src)
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if proto == 'm3u8' or src_ext == 'm3u8':
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formats.extend(self._extract_m3u8_formats(
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src_url, video_id, ext or 'mp4', m3u8_id='hls'))
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continue
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if src_ext == 'f4m':
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f4m_url = src_url
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if not f4m_params:
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f4m_params = {
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'hdcore': '3.2.0',
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'plugin': 'flowplayer-3.2.0.1',
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}
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f4m_url += '&' if '?' in f4m_url else '?'
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f4m_url += compat_urllib_parse.urlencode(f4m_params).encode('utf-8')
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formats.extend(self._extract_f4m_formats(f4m_url, video_id, f4m_id='hds'))
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continue
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if src_url.startswith('http'):
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http_count += 1
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formats.append({
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'url': src_url,
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'ext': ext or src_ext or 'flv',
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'format_id': 'http-%d' % (bitrate or http_count),
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'tbr': bitrate,
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'filesize': filesize,
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'width': width,
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'height': height,
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})
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continue
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self._sort_formats(formats)
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return formats
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def _parse_smil_video(self, video, video_id, base, rtmp_count):
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src = video.get('src')
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if not src:
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return [], rtmp_count
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bitrate = int_or_none(video.get('system-bitrate') or video.get('systemBitrate'), 1000)
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width = int_or_none(video.get('width'))
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height = int_or_none(video.get('height'))
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proto = video.get('proto')
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if not proto:
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if base:
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if base.startswith('rtmp'):
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proto = 'rtmp'
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elif base.startswith('http'):
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proto = 'http'
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ext = video.get('ext')
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if proto == 'm3u8':
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return self._extract_m3u8_formats(src, video_id, ext), rtmp_count
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elif proto == 'rtmp':
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rtmp_count += 1
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streamer = video.get('streamer') or base
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return ([{
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'url': streamer,
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'play_path': src,
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'ext': 'flv',
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'format_id': 'rtmp-%d' % (rtmp_count if bitrate is None else bitrate),
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'tbr': bitrate,
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'width': width,
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'height': height,
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}], rtmp_count)
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elif proto.startswith('http'):
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return ([{
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'url': base + src,
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'ext': ext or 'flv',
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'tbr': bitrate,
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'width': width,
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'height': height,
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}], rtmp_count)
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def _parse_smil_subtitles(self, smil, namespace=None):
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subtitles = {}
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for num, textstream in enumerate(smil.findall(self._xpath_ns('.//textstream', namespace))):
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src = textstream.get('src')
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if not src:
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continue
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ext = textstream.get('ext') or determine_ext(src)
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if not ext:
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type_ = textstream.get('type')
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if type_ == 'text/srt':
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ext = 'srt'
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lang = textstream.get('systemLanguage') or textstream.get('systemLanguageName')
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subtitles.setdefault(lang, []).append({
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'url': src,
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'ext': ext,
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})
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return subtitles
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def _live_title(self, name):
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""" Generate the title for a live video """
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