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[youtube] Extract more thumbnails

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* The thumbnail URLs are hard-coded and their actual existence is tested lazily
* Added option `--no-check-formats` to not test them

Closes #340, Related: #402, #337, https://github.com/ytdl-org/youtube-dl/issues/29049
This commit is contained in:
pukkandan
2021-07-15 22:49:59 +05:30
parent d9488f69c1
commit 0ba692acc8
5 changed files with 61 additions and 34 deletions
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37
yt_dlp/YoutubeDL.py
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@@ -209,6 +209,9 @@ class YoutubeDL(object):
into a single file
allow_multiple_audio_streams: Allow multiple audio streams to be merged
into a single file
check_formats Whether to test if the formats are downloadable.
Can be True (check all), False (check none)
or None (check only if requested by extractor)
paths: Dictionary of output paths. The allowed keys are 'home'
'temp' and the keys of OUTTMPL_TYPES (in utils.py)
outtmpl: Dictionary of templates for output names. Allowed keys
@@ -1944,15 +1947,24 @@ class YoutubeDL(object):
t.get('id') if t.get('id') is not None else '',
t.get('url')))
def test_thumbnail(t):
self.to_screen('[info] Testing thumbnail %s' % t['id'])
try:
self.urlopen(HEADRequest(t['url']))
except network_exceptions as err:
self.to_screen('[info] Unable to connect to thumbnail %s URL "%s" - %s. Skipping...' % (
t['id'], t['url'], error_to_compat_str(err)))
return False
return True
def thumbnail_tester():
if self.params.get('check_formats'):
def to_screen(msg):
return self.to_screen(f'[info] {msg}')
else:
to_screen = self.write_debug
def test_thumbnail(t):
to_screen('Testing thumbnail %s' % t['id'])
try:
self.urlopen(HEADRequest(t['url']))
except network_exceptions as err:
to_screen('Unable to connect to thumbnail %s URL "%s" - %s. Skipping...' % (
t['id'], t['url'], error_to_compat_str(err)))
return False
return True
return test_thumbnail
for i, t in enumerate(thumbnails):
if t.get('id') is None:
@@ -1960,8 +1972,11 @@ class YoutubeDL(object):
if t.get('width') and t.get('height'):
t['resolution'] = '%dx%d' % (t['width'], t['height'])
t['url'] = sanitize_url(t['url'])
if self.params.get('check_formats'):
info_dict['thumbnails'] = LazyList(filter(test_thumbnail, thumbnails[::-1])).reverse()
if self.params.get('check_formats') is not False:
info_dict['thumbnails'] = LazyList(filter(thumbnail_tester(), thumbnails[::-1])).reverse()
else:
info_dict['thumbnails'] = thumbnails
def process_video_result(self, info_dict, download=True):
assert info_dict.get('_type', 'video') == 'video'