manpage: add some minor documenation fixes

- replace the incorrect reference to --opengl-shader
- document a caveat when using --image-display-duration
- add some documentation on --vf=lavfi=
This commit is contained in:
Leo Izen
2017-12-04 20:55:11 -05:00
parent 7a3df7d6a4
commit 713668b99a
3 changed files with 13 additions and 3 deletions

View File

@@ -442,7 +442,7 @@ this is strongly discouraged and deprecated, except for ``-set``.
Without suffix, the action taken is normally ``-set``.
Some options (like ``--sub-file``, ``--audio-file``, ``--opengl-shader``) are
Some options (like ``--sub-file``, ``--audio-file``, ``--glsl-shader``) are
aliases for the proper option with ``-append`` action. For example,
``--sub-file`` is an alias for ``--sub-files-append``.