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Diffstat (limited to 'doc/decoders.texi')
| -rw-r--r-- | doc/decoders.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/decoders.texi b/doc/decoders.texi index a6eb573a89..35771140e1 100644 --- a/doc/decoders.texi +++ b/doc/decoders.texi @@ -282,7 +282,13 @@ Sets the display duration of the decoded teletext pages or subtitles in miliseconds. Default value is 30000 which is 30 seconds. @item txt_transparent Force transparent background of the generated teletext bitmaps. Default value -is 0 which means an opaque (black) background. +is 0 which means an opaque background. +@item txt_opacity +Sets the opacity (0-255) of the teletext background. If +@option{txt_transparent} is not set, it only affects characters between a start +box and an end box, typically subtitles. Default value is 0 if +@option{txt_transparent} is set, 255 otherwise. + @end table @c man end SUBTILES DECODERS |