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[YoutubeDL] Add --playlist-items option (Fixes #2662)

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This commit is contained in:
Philipp Hagemeister 2015-01-25 04:24:55 +01:00
parent 8940b8608e
commit c14e88f0f5
4 changed files with 39 additions and 5 deletions
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1
AUTHORS
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@ -104,3 +104,4 @@ Ondřej Caletka
Dinesh S
Johan K. Jensen
Yen Chi Hsuan
Enam Mijbah Noor

28
youtube_dl/YoutubeDL.py
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@ -137,6 +137,7 @@ class YoutubeDL(object):
nooverwrites: Prevent overwriting files.
playliststart: Playlist item to start at.
playlistend: Playlist item to end at.
playlist_items: Specific indices of playlist to download.
playlistreverse: Download playlist items in reverse order.
matchtitle: Download only matching titles.
rejecttitle: Reject downloads for matching titles.
@ -703,15 +704,38 @@ def process_ie_result(self, ie_result, download=True, extra_info={}):
if playlistend == -1:
playlistend = None
playlistitems_str = self.params.get('playlist_items', None)
playlistitems = None
if playlistitems_str is not None:
def iter_playlistitems(format):
for string_segment in format.split(','):
if '-' in string_segment:
start, end = string_segment.split('-')
for item in range(int(start), int(end) + 1):
yield int(item)
else:
yield int(string_segment)
playlistitems = iter_playlistitems(playlistitems_str)
ie_entries = ie_result['entries']
if isinstance(ie_entries, list):
n_all_entries = len(ie_entries)
if playlistitems:
entries = [ie_entries[i - 1] for i in playlistitems]
else:
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))
elif isinstance(ie_entries, PagedList):
if playlistitems:
entries = []
for item in playlistitems:
entries.extend(ie_entries.getslice(
item - 1, item
))
else:
entries = ie_entries.getslice(
playliststart, playlistend)
n_entries = len(entries)
@ -719,6 +743,10 @@ def process_ie_result(self, ie_result, download=True, extra_info={}):
"[%s] playlist %s: Downloading %d videos" %
(ie_result['extractor'], playlist, n_entries))
else: # iterable
if playlistitems:
entry_list = list(ie_entries)
entries = [entry_list[i - 1] for i in playlistitems]
else:
entries = list(itertools.islice(
ie_entries, playliststart, playlistend))
n_entries = len(entries)

1
youtube_dl/__init__.py
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@ -333,6 +333,7 @@ def _real_main(argv=None):
'sleep_interval': opts.sleep_interval,
'external_downloader': opts.external_downloader,
'list_thumbnails': opts.list_thumbnails,
'playlist_items': opts.playlist_items,
}
with YoutubeDL(ydl_opts) as ydl:

4
youtube_dl/options.py
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@ -200,6 +200,10 @@ def _hide_login_info(opts):
'--playlist-end',
dest='playlistend', metavar='NUMBER', default=None, type=int,
help='playlist video to end at (default is last)')
selection.add_option(
'--playlist-items',
dest='playlist_items', metavar='ITEM_SPEC', default=None,
help='playlist video items to download. Specify indices of the videos in the playlist seperated by commas like: "--playlist-items 1,2,5,8" if you want to download videos indexed 1, 2, 5, 8 in the playlist. You can specify range: "--playlist-items 1-3,7,10-13", it will download the videos at index 1, 2, 3, 7, 10, 11, 12 and 13.')
selection.add_option(
'--match-title',
dest='matchtitle', metavar='REGEX',