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| author | Andrey Utkin <andrey.krieger.utkin@gmail.com> | 2014-07-04 12:16:16 +0300 |
|---|---|---|
| committer | Stefano Sabatini <stefasab@gmail.com> | 2014-07-17 11:29:43 +0200 |
| commit | dec87454deb2f2a314f309cd6c1fa636503a70ae (patch) | |
| tree | 671570af397c5e2c8d1796e7974d7cfb5372ef33 /doc/filters.texi | |
| parent | f3e886c7dfcc6ca6e2b430b0978497da9136201d (diff) | |
lavfi/drawtext: add expansion function eif()
It evaluates expression and outputs it as integer value, using specified
format.
Address trac ticket #3699.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 0f73314a12..6bea105d36 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -3911,6 +3911,15 @@ example the text size is not known when evaluating the expression, so the constants @var{text_w} and @var{text_h} will have an undefined value. +@item eif +Evaluate the expression's value and output as formatted integer. + +First argument is expression to be evaluated, same as for @var{expr} function. +Second argument specifies output format. Allowed values are 'x', 'X', 'd' and +'u', they are treated exactly as in printf function. +Third parameter is optional and sets the number of positions taken by output. +Effectively this allows to add padding with zeros from the left. + @item gmtime The time at which the filter is running, expressed in UTC. It can accept an argument: a strftime() format string. |