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Change the order for extracting/downloading

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Now it gets a video info and directly downloads it, the it pass to the next video founded.
This commit is contained in:
Jaime Marquínez Ferrándiz 2013-04-10 00:05:04 +02:00
parent d39919c03e
commit 146c12a2da
1 changed files with 53 additions and 50 deletions
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103
youtube_dl/FileDownloader.py
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@ -419,9 +419,10 @@ class FileDownloader(object):
return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
return None
def extract_info(self, url):
def extract_info(self, url, download = True):
'''
Returns a list with a dictionary for each video we find.
If 'download', also downloads the videos.
'''
suitable_found = False
for ie in self._ies:
@ -440,7 +441,12 @@ class FileDownloader(object):
# Extract information from URL and process it
try:
ie_results = ie.extract(url)
results = self.process_ie_results(ie_results, ie)
results = []
for ie_result in ie_results:
if not 'extractor' in ie_result:
#The extractor has already been set somewhere else
ie_result['extractor'] = ie.IE_NAME
results.append(self.process_ie_result(ie_result, download))
return results
except ExtractorError as de: # An error we somewhat expected
self.trouble(u'ERROR: ' + compat_str(de), de.format_traceback())
@ -453,51 +459,51 @@ class FileDownloader(object):
raise
if not suitable_found:
self.trouble(u'ERROR: no suitable InfoExtractor: %s' % url)
def extract_info_iterable(self, urls):
'''
Return the videos founded for the urls
'''
results = []
for url in urls:
results.extend(self.extract_info(url))
return results
def process_ie_results(self, ie_results, ie):
def process_ie_result(self, ie_result, download = True):
"""
Take the results of the ie and return a list of videos.
For url elements it will seartch the suitable ie and get the videos
Take the result of the ie and return a list of videos.
For url elements it will search the suitable ie and get the videos
For playlist elements it will process each of the elements of the 'entries' key
It will also download the videos if 'download'.
"""
results = []
for result in ie_results or []:
result_type = result.get('_type', 'video') #If not given we suppose it's a video, support the dafault old system
if result_type == 'video':
if not 'extractor' in result:
#The extractor has already been set somewhere else
result['extractor'] = ie.IE_NAME
results.append(result)
elif result_type == 'url':
#We get the videos pointed by the url
results.extend(self.extract_info(result['url']))
elif result_type == 'playlist':
#We process each entry in the playlist
entries_result = self.process_ie_results(result['entries'], ie)
result['entries'] = entries_result
results.extend([result])
return results
result_type = ie_result.get('_type', 'video') #If not given we suppose it's a video, support the dafault old system
if result_type == 'video':
if 'playlist' not in ie_result:
#It isn't part of a playlist
ie_result['playlist'] = None
if download:
#Do the download:
self.process_info(ie_result)
return ie_result
elif result_type == 'url':
#We get the video pointed by the url
result = self.extract_info(ie_result['url'], download)[0]
return result
elif result_type == 'playlist':
#We process each entry in the playlist
playlist = ie_result.get('title', None) or ie_result.get('id', None)
self.to_screen(u'[download] Downloading playlist: %s' % playlist)
n_videos = len(ie_result['entries'])
playlist_results = []
for i,entry in enumerate(ie_result['entries'],1):
self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_videos))
entry_result = self.process_ie_result(entry, False)
entry_result['playlist'] = playlist
#We must do the download here to correctly set the 'playlist' key
if download:
self.process_info(entry_result)
playlist_results.append(entry_result)
result = ie_result.copy()
result['entries'] = playlist_results
return result
def process_info(self, info_dict):
"""Process a single dictionary returned by an InfoExtractor."""
if info_dict.get('_type','video') == 'playlist':
playlist = info_dict.get('title', None) or info_dict.get('id', None)
self.to_screen(u'[download] Downloading playlist: %s' % playlist)
n_videos = len(info_dict['entries'])
for i,video in enumerate(info_dict['entries'],1):
video['playlist'] = playlist
self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_videos))
self.process_info(video)
return
#We increment the download the download count here to match the previous behaviour.
self.increment_downloads()
# Keep for backwards compatibility
info_dict['stitle'] = info_dict['title']
@ -633,17 +639,14 @@ class FileDownloader(object):
raise SameFileError(self.params['outtmpl'])
for url in url_list:
videos = self.extract_info(url)
for video in videos or []:
try:
self.increment_downloads()
self.process_info(video)
except UnavailableVideoError:
self.trouble(u'\nERROR: unable to download video')
except MaxDownloadsReached:
self.to_screen(u'[info] Maximum number of downloaded files reached.')
raise
try:
#It also downloads the videos
videos = self.extract_info(url)
except UnavailableVideoError:
self.trouble(u'\nERROR: unable to download video')
except MaxDownloadsReached:
self.to_screen(u'[info] Maximum number of downloaded files reached.')
raise
return self._download_retcode