From 26890b6b6770214ad63fc9c9564ac75b3227f708 Mon Sep 17 00:00:00 2001 From: Fei Wang Date: Fri, 5 Aug 2022 14:11:19 +0800 Subject: [PATCH] lavfi/overlay_vaapi: set defalut alpha value as 1.0 The present default value of 0 will render the overlay video invisible. A default of 1.0 is consistent with most common use cases. Signed-off-by: Fei Wang Reviewed-by: Philip Langdale Signed-off-by: Haihao Xiang --- doc/filters.texi | 2 +- libavfilter/vf_overlay_vaapi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index af7d60ca44..c85c33a104 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -26183,7 +26183,7 @@ Default value is the height of input overlay video. @item alpha Set transparency of overlaid video. Allowed range is 0.0 to 1.0. Higher value means lower transparency. -Default value is @code{0.0}. +Default value is @code{1.0}. @end table diff --git a/libavfilter/vf_overlay_vaapi.c b/libavfilter/vf_overlay_vaapi.c index b3a624ae15..3e6a0de13f 100644 --- a/libavfilter/vf_overlay_vaapi.c +++ b/libavfilter/vf_overlay_vaapi.c @@ -380,7 +380,7 @@ static const AVOption overlay_vaapi_options[] = { { "h", "Overlay height", OFFSET(overlay_oh), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, .flags = FLAGS }, { "alpha", "Overlay global alpha", - OFFSET(alpha), AV_OPT_TYPE_FLOAT, { .dbl = 0.0}, 0.0, 1.0, .flags = FLAGS}, + OFFSET(alpha), AV_OPT_TYPE_FLOAT, { .dbl = 1.0}, 0.0, 1.0, .flags = FLAGS}, { NULL }, };