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-rw-r--r--youtube_dl/extractor/pbs.py12
1 files changed, 6 insertions, 6 deletions
diff --git a/youtube_dl/extractor/pbs.py b/youtube_dl/extractor/pbs.py
index 09aef7fb9..b490ef74c 100644
--- a/youtube_dl/extractor/pbs.py
+++ b/youtube_dl/extractor/pbs.py
@@ -506,12 +506,12 @@ class PBSIE(InfoExtractor):
if http_url:
for m3u8_format in m3u8_formats:
bitrate = self._search_regex(r'(\d+)k', m3u8_format['url'], 'bitrate', default=None)
- # lower qualities(150k and 192k) are not available as http formats
- # https://github.com/rg3/youtube-dl/commit/cbc032c8b70a038a69259378c92b4ba97b42d491#commitcomment-17313656
- # we will try to extract any http format higher than than the lowest quality documented in
- # https://projects.pbs.org/confluence/display/coveapi/COVE+Video+Specifications
- # as there also undocumented http formats formats(4500k and 6500k)
- # http://www.pbs.org/video/2365815229/
+ # Lower qualities (150k and 192k) are not available as HTTP formats (see [1]),
+ # we won't try extracting them.
+ # Since summer 2016 higher quality formats (4500k and 6500k) are also available
+ # albeit they are not documented in [2].
+ # 1. https://github.com/rg3/youtube-dl/commit/cbc032c8b70a038a69259378c92b4ba97b42d491#commitcomment-17313656
+ # 2. https://projects.pbs.org/confluence/display/coveapi/COVE+Video+Specifications
if not bitrate or int(bitrate) < 400:
continue
f_url = re.sub(r'\d+k|baseline', bitrate + 'k', http_url)