mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-11-23 02:25:11 +00:00
Download videos after extracting information
This is achieved by letting the InfoExtractors instruct its downloader to process the information dictionary just after extracting the information. As a consequence, some code is simplified too.
This commit is contained in:
Ricardo Garcia
parent
147753eb33
commit
6f21f68629
1 changed files with 44 additions and 55 deletions
99
youtube-dl
99
youtube-dl
|
|
@ -301,21 +301,8 @@ class FileDownloader(object):
|
|||
# Suitable InfoExtractor found
|
||||
suitable_found = True
|
||||
|
||||
# Extract information from URL
|
||||
all_results = ie.extract(url)
|
||||
results = [x for x in all_results if x is not None]
|
||||
|
||||
# See if there were problems extracting any information
|
||||
if len(results) != len(all_results):
|
||||
self.trouble()
|
||||
|
||||
# Two results could go to the same file
|
||||
if len(results) > 1 and self.fixed_template():
|
||||
raise SameFileError(self.params['outtmpl'])
|
||||
|
||||
# Process each result
|
||||
for result in results:
|
||||
self.process_info(result)
|
||||
# Extract information from URL and process it
|
||||
ie.extract(url)
|
||||
|
||||
# Suitable InfoExtractor had been found; go to next URL
|
||||
break
|
||||
|
|
@ -508,7 +495,7 @@ class YoutubeIE(InfoExtractor):
|
|||
else:
|
||||
raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
|
||||
except (IOError, netrc.NetrcParseError), err:
|
||||
self._downloader.trouble(u'WARNING: parsing .netrc: %s' % str(err))
|
||||
self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
|
||||
return
|
||||
|
||||
# Set language
|
||||
|
|
@ -517,7 +504,7 @@ class YoutubeIE(InfoExtractor):
|
|||
self.report_lang()
|
||||
urllib2.urlopen(request).read()
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'WARNING: unable to set language: %s' % str(err))
|
||||
self._downloader.to_stderr(u'WARNING: unable to set language: %s' % str(err))
|
||||
return
|
||||
|
||||
# No authentication to be performed
|
||||
|
|
@ -537,10 +524,10 @@ class YoutubeIE(InfoExtractor):
|
|||
self.report_login()
|
||||
login_results = urllib2.urlopen(request).read()
|
||||
if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
|
||||
self._downloader.trouble(u'WARNING: unable to log in: bad username or password')
|
||||
self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
|
||||
return
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'WARNING: unable to log in: %s' % str(err))
|
||||
self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
|
||||
return
|
||||
|
||||
# Confirm age
|
||||
|
|
@ -561,7 +548,7 @@ class YoutubeIE(InfoExtractor):
|
|||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
return [None]
|
||||
return
|
||||
video_id = mobj.group(2)
|
||||
|
||||
# Downloader parameters
|
||||
|
|
@ -587,14 +574,14 @@ class YoutubeIE(InfoExtractor):
|
|||
video_webpage = urllib2.urlopen(request).read()
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
|
||||
return [None]
|
||||
return
|
||||
self.report_information_extraction(video_id)
|
||||
|
||||
# "t" param
|
||||
mobj = re.search(r', "t": "([^"]+)"', video_webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract "t" parameter')
|
||||
return [None]
|
||||
return
|
||||
video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&el=detailpage&ps=' % (video_id, mobj.group(1))
|
||||
if format_param is not None:
|
||||
video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
|
||||
|
|
@ -604,14 +591,14 @@ class YoutubeIE(InfoExtractor):
|
|||
mobj = re.search(r"var watchUsername = '([^']+)';", video_webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
|
||||
return [None]
|
||||
return
|
||||
video_uploader = mobj.group(1)
|
||||
|
||||
# title
|
||||
mobj = re.search(r'(?im)<title>YouTube - ([^<]*)</title>', video_webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract video title')
|
||||
return [None]
|
||||
return
|
||||
video_title = mobj.group(1).decode('utf-8')
|
||||
video_title = re.sub(ur'(?u)&(.+?);', self.htmlentity_transform, video_title)
|
||||
video_title = video_title.replace(os.sep, u'%')
|
||||
|
|
@ -621,14 +608,14 @@ class YoutubeIE(InfoExtractor):
|
|||
simple_title = simple_title.strip(ur'_')
|
||||
|
||||
# Process video information
|
||||
return [{
|
||||
self._downloader.process_info({
|
||||
'id': video_id.decode('utf-8'),
|
||||
'url': video_real_url.decode('utf-8'),
|
||||
'uploader': video_uploader.decode('utf-8'),
|
||||
'title': video_title,
|
||||
'stitle': simple_title,
|
||||
'ext': video_extension.decode('utf-8'),
|
||||
}]
|
||||
})
|
||||
|
||||
class MetacafeIE(InfoExtractor):
|
||||
"""Information Extractor for metacafe.com."""
|
||||
|
|
@ -689,14 +676,15 @@ class MetacafeIE(InfoExtractor):
|
|||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
return [None]
|
||||
return
|
||||
|
||||
video_id = mobj.group(1)
|
||||
|
||||
# Check if video comes from YouTube
|
||||
mobj2 = re.match(r'^yt-(.*)$', video_id)
|
||||
if mobj2 is not None:
|
||||
return self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1))
|
||||
self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1))
|
||||
return
|
||||
|
||||
simple_title = mobj.group(2).decode('utf-8')
|
||||
video_extension = 'flv'
|
||||
|
|
@ -708,20 +696,20 @@ class MetacafeIE(InfoExtractor):
|
|||
webpage = urllib2.urlopen(request).read()
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
|
||||
return [None]
|
||||
return
|
||||
|
||||
# Extract URL, uploader and title from webpage
|
||||
self.report_extraction(video_id)
|
||||
mobj = re.search(r'(?m)"mediaURL":"(http.*?\.flv)"', webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract media URL')
|
||||
return [None]
|
||||
return
|
||||
mediaURL = mobj.group(1).replace('\\', '')
|
||||
|
||||
mobj = re.search(r'(?m)"gdaKey":"(.*?)"', webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract gdaKey')
|
||||
return [None]
|
||||
return
|
||||
gdaKey = mobj.group(1)
|
||||
|
||||
video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
|
||||
|
|
@ -729,24 +717,24 @@ class MetacafeIE(InfoExtractor):
|
|||
mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract title')
|
||||
return [None]
|
||||
return
|
||||
video_title = mobj.group(1).decode('utf-8')
|
||||
|
||||
mobj = re.search(r'(?m)<li id="ChnlUsr">.*?Submitter:<br />(.*?)</li>', webpage)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
|
||||
return [None]
|
||||
return
|
||||
video_uploader = re.sub(r'<.*?>', '', mobj.group(1))
|
||||
|
||||
# Return information
|
||||
return [{
|
||||
# Process video information
|
||||
self._downloader.process_info({
|
||||
'id': video_id.decode('utf-8'),
|
||||
'url': video_url.decode('utf-8'),
|
||||
'uploader': video_uploader.decode('utf-8'),
|
||||
'title': video_title,
|
||||
'stitle': simple_title,
|
||||
'ext': video_extension.decode('utf-8'),
|
||||
}]
|
||||
})
|
||||
|
||||
|
||||
class YoutubeSearchIE(InfoExtractor):
|
||||
|
|
@ -777,26 +765,30 @@ class YoutubeSearchIE(InfoExtractor):
|
|||
mobj = re.match(self._VALID_QUERY, query)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
|
||||
return [None]
|
||||
return
|
||||
|
||||
prefix, query = query.split(':')
|
||||
prefix = prefix[8:]
|
||||
if prefix == '':
|
||||
return self._download_n_results(query, 1)
|
||||
self._download_n_results(query, 1)
|
||||
return
|
||||
elif prefix == 'all':
|
||||
return self._download_n_results(query, self._max_youtube_results)
|
||||
self._download_n_results(query, self._max_youtube_results)
|
||||
return
|
||||
else:
|
||||
try:
|
||||
n = int(prefix)
|
||||
if n <= 0:
|
||||
self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
|
||||
return [None]
|
||||
return
|
||||
elif n > self._max_youtube_results:
|
||||
self._downloader.trouble(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
|
||||
self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
|
||||
n = self._max_youtube_results
|
||||
return self._download_n_results(query, n)
|
||||
self._download_n_results(query, n)
|
||||
return
|
||||
except ValueError: # parsing prefix as int fails
|
||||
return self._download_n_results(query, 1)
|
||||
self._download_n_results(query, 1)
|
||||
return
|
||||
|
||||
def _download_n_results(self, query, n):
|
||||
"""Downloads a specified number of results for a query"""
|
||||
|
|
@ -813,7 +805,7 @@ class YoutubeSearchIE(InfoExtractor):
|
|||
page = urllib2.urlopen(request).read()
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
|
||||
return [None]
|
||||
return
|
||||
|
||||
# Extract video identifiers
|
||||
for mobj in re.finditer(self._VIDEO_INDICATOR, page):
|
||||
|
|
@ -823,16 +815,14 @@ class YoutubeSearchIE(InfoExtractor):
|
|||
already_seen.add(video_id)
|
||||
if len(video_ids) == n:
|
||||
# Specified n videos reached
|
||||
information = []
|
||||
for id in video_ids:
|
||||
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id))
|
||||
return information
|
||||
self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
|
||||
return
|
||||
|
||||
if self._MORE_PAGES_INDICATOR not in page:
|
||||
information = []
|
||||
for id in video_ids:
|
||||
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id))
|
||||
return information
|
||||
self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
|
||||
return
|
||||
|
||||
pagenum = pagenum + 1
|
||||
|
||||
|
|
@ -865,7 +855,7 @@ class YoutubePlaylistIE(InfoExtractor):
|
|||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid url: %s' % url)
|
||||
return [None]
|
||||
return
|
||||
|
||||
# Download playlist pages
|
||||
playlist_id = mobj.group(1)
|
||||
|
|
@ -879,7 +869,7 @@ class YoutubePlaylistIE(InfoExtractor):
|
|||
page = urllib2.urlopen(request).read()
|
||||
except (urllib2.URLError, httplib.HTTPException, socket.error), err:
|
||||
self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
|
||||
return [None]
|
||||
return
|
||||
|
||||
# Extract video identifiers
|
||||
ids_in_page = []
|
||||
|
|
@ -892,10 +882,9 @@ class YoutubePlaylistIE(InfoExtractor):
|
|||
break
|
||||
pagenum = pagenum + 1
|
||||
|
||||
information = []
|
||||
for id in video_ids:
|
||||
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id))
|
||||
return information
|
||||
self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
|
||||
return
|
||||
|
||||
class PostProcessor(object):
|
||||
"""Post Processor class.
|
||||
|
|
|
|||
Loading…
Reference in a new issue