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[youtube] Clarify rationale for yt:stretch validation

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Sergey M․ 2015-11-28 18:50:21 +06:00
parent 13a9b69b09
commit 5faf9fed7e
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youtube_dl/extractor/youtube.py
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@ -1514,6 +1514,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
if stretched_m: if stretched_m:
w = float(stretched_m.group('w')) w = float(stretched_m.group('w'))
h = float(stretched_m.group('h')) h = float(stretched_m.group('h'))
# yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0).
# We will only process correct ratios.
if w > 0 and h > 0: if w > 0 and h > 0:
ratio = w / h ratio = w / h
for f in formats: for f in formats: