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doc/filters: rework introductory description for decimate

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In particular, dedicate first paragraph to deliver a short description of
the filter.
This commit is contained in:
Stefano Sabatini 2013-02-20 19:11:19 +01:00
parent a2a1e20fa2
commit 7f07c61c2f
1 changed files with 6 additions and 5 deletions
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11
doc/filters.texi
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@ -2063,11 +2063,12 @@ playback.
@section decimate
This filter drops frames that do not differ greatly from the previous
frame in order to reduce framerate. The main use of this filter is
for very-low-bitrate encoding (e.g. streaming over dialup modem), but
it could in theory be used for fixing movies that were
inverse-telecined incorrectly.
Drop frames that do not differ greatly from the previous frame in
order to reduce framerate.
The main use of this filter is for very-low-bitrate encoding
(e.g. streaming over dialup modem), but it could in theory be used for
fixing movies that were inverse-telecined incorrectly.
The filter accepts parameters as a list of @var{key}=@var{value}
pairs, separated by ":". If the key of the first options is omitted,