[FFmpeg-cvslog] doc/filters: mention scale2ref in replacement example

[Niklas Haas]

ffmpeg | branch: master | Niklas Haas <git at haasn.dev> | Sat May  4 13:15:15 2024 +0200| [df868bae239b263f7b71bfd3b5a5f4b0e5179ea1] | committer: Niklas Haas

doc/filters: mention scale2ref in replacement example

So ctrl+f "scale2ref" finds it.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=df868bae239b263f7b71bfd3b5a5f4b0e5179ea1
---

 doc/filters.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index c4efae01c6..595dc5044f 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -21342,7 +21342,7 @@ scale='trunc(ih*dar/2)*2:trunc(ih/2)*2',setsar=1/1
 
 @item
 Scale a subtitle stream (sub) to match the main video (main) in size before
-overlaying.
+overlaying. ("scale2ref")
 @example
 '[main]split[a][b]; [ref][a]scale=rw:rh[c]; [b][c]overlay'
 @end example