ffmpeg | branch: master | softworkz <softwo...@hotmail.com> | Mon Oct 31 06:20:07 2022 +0000| [e137d197b54a3accfae27d7458f1ee80491cfa7e] | committer: Haihao Xiang
doc/filters.texi: update overlay_vaapi documentation Signed-off-by: softworkz <softwo...@hotmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e137d197b54a3accfae27d7458f1ee80491cfa7e --- doc/filters.texi | 51 ++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 40 insertions(+), 11 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index e1554cb18e..b50582eb2a 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -26321,30 +26321,59 @@ It takes two inputs and has one output. The first input is the "main" video on w The filter accepts the following options: @table @option - @item x -Set the x coordinate of the overlaid video on the main video. -Default value is @code{0}. - @item y -Set the y coordinate of the overlaid video on the main video. -Default value is @code{0}. +Set expressions for the x and y coordinates of the overlaid video +on the main video. -@item w -Set the width of the overlaid video on the main video. -Default value is the width of input overlay video. +Default value is "0" for both expressions. +@item w @item h -Set the height of the overlaid video on the main video. -Default value is the height of input overlay video. +Set expressions for the width and height the overlaid video +on the main video. + +Default values are 'overlay_iw' for 'w' and 'overlay_ih*w/overlay_iw' for 'h'. + +The expressions can contain the following parameters: + +@table @option + +@item main_w, W +@item main_h, H +The main input width and height. + +@item overlay_iw +@item overlay_ih +The overlay input width and height. + +@item overlay_w, w +@item overlay_h, h +The overlay output width and height. + +@item overlay_x, x +@item overlay_y, y +Position of the overlay layer inside of main + +@end table @item alpha Set transparency of overlaid video. Allowed range is 0.0 to 1.0. Higher value means lower transparency. Default value is @code{1.0}. +@item eof_action +See @ref{framesync}. + +@item shortest +See @ref{framesync}. + +@item repeatlast +See @ref{framesync}. + @end table +This filter also supports the @ref{framesync} options. @subsection Examples @itemize _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
