[FFmpeg-devel] [PATCH] doc/utils: document the "ms" and "us" suffixes for durations

Moritz Barsnick barsnick at gmx.net
Sat Mar 10 20:32:09 EET 2018

These suffixes were recently introduced in 61c972384d311508d07f9360d196909e27195655
and completed in 8218249f1f04de65904f58519bde21948e5a0783.

Signed-off-by: Moritz Barsnick <barsnick at gmx.net>

I chose not to document the suffixes in the section describing the
HH:MM:SS.mmm syntax, even though they work there (with expected, but
quite difficult to explain effects).

 doc/utils.texi | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/utils.texi b/doc/utils.texi
index d55dd315c3..a094ee151c 100644
--- a/doc/utils.texi
+++ b/doc/utils.texi
@@ -110,11 +110,12 @@ maximum of 2 digits. The @var{m} at the end expresses decimal value for
-[-]@var{S}+[. at var{m}...]
+[-]@var{S}+[. at var{m}...][ms|us]
 @end example
 @var{S} expresses the number of seconds, with the optional decimal part
- at var{m}.
+ at var{m}. The optional literal suffixes @samp{ms} or @samp{us} indicate to
+interpret the value as milliseconds or microseconds, respectively.
 In both expressions, the optional @samp{-} indicates negative duration.

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