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Allow iterators for playlist result entries

This commit is contained in:
Philipp Hagemeister 2014-12-06 14:02:19 +01:00
parent 158f8cadc0
commit b82f815f37
3 changed files with 26 additions and 16 deletions
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20
youtube_dl/YoutubeDL.py
View File

@ -7,6 +7,7 @@ import collections
import datetime
import errno
import io
import itertools
import json
import locale
import os
@ -654,21 +655,28 @@ class YoutubeDL(object):
if playlistend == -1:
playlistend = None
if isinstance(ie_result['entries'], list):
n_all_entries = len(ie_result['entries'])
entries = ie_result['entries'][playliststart:playlistend]
ie_entries = ie_result['entries']
if isinstance(ie_entries, list):
n_all_entries = len(ie_entries)
entries = ie_entries[playliststart:playlistend]
n_entries = len(entries)
self.to_screen(
"[%s] playlist %s: Collected %d video ids (downloading %d of them)" %
(ie_result['extractor'], playlist, n_all_entries, n_entries))
else:
assert isinstance(ie_result['entries'], PagedList)
entries = ie_result['entries'].getslice(
elif isinstance(ie_entries, PagedList):
entries = ie_entries.getslice(
playliststart, playlistend)
n_entries = len(entries)
self.to_screen(
"[%s] playlist %s: Downloading %d videos" %
(ie_result['extractor'], playlist, n_entries))
else: # iterable
entries = list(itertools.islice(
ie_entries, playliststart, playlistend))
n_entries = len(entries)
self.to_screen(
"[%s] playlist %s: Downloading %d videos" %
(ie_result['extractor'], playlist, n_entries))
for i, entry in enumerate(entries, 1):
self.to_screen('[download] Downloading video #%s of %s' % (i, n_entries))

4
youtube_dl/extractor/common.py
View File

@ -158,8 +158,8 @@ class InfoExtractor(object):
_type "playlist" indicates multiple videos.
There must be a key "entries", which is a list or a PagedList object, each
element of which is a valid dictionary under this specfication.
There must be a key "entries", which is a list, an iterable, or a PagedList
object, each element of which is a valid dictionary by this specification.
Additionally, playlists can have "title" and "id" attributes with the same
semantics as videos (see above).

18
youtube_dl/extractor/youtube.py
View File

@ -1262,8 +1262,12 @@ class YoutubeChannelIE(InfoExtractor):
# The videos are contained in a single page
# the ajax pages can't be used, they are empty
video_ids = self.extract_videos_from_page(channel_page)
else:
# Download all channel pages using the json-based channel_ajax query
entries = [
self.url_result(video_id, 'Youtube', video_id=video_id)
for video_id in video_ids]
return self.playlist_result(entries, channel_id)
def _entries():
for pagenum in itertools.count(1):
url = self._MORE_PAGES_URL % (pagenum, channel_id)
page = self._download_json(
@ -1271,16 +1275,14 @@ class YoutubeChannelIE(InfoExtractor):
transform_source=uppercase_escape)
ids_in_page = self.extract_videos_from_page(page['content_html'])
video_ids.extend(ids_in_page)
for video_id in ids_in_page:
yield self.url_result(
video_id, 'Youtube', video_id=video_id)
if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
break
self._downloader.to_screen('[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
url_entries = [self.url_result(video_id, 'Youtube', video_id=video_id)
for video_id in video_ids]
return self.playlist_result(url_entries, channel_id)
return self.playlist_result(_entries(), channel_id)
class YoutubeUserIE(InfoExtractor):