diff options
| author | Fei Wang <fei.w.wang-at-intel.com@ffmpeg.org> | 2022-08-05 14:11:19 +0800 |
|---|---|---|
| committer | Haihao Xiang <haihao.xiang@intel.com> | 2022-08-09 14:02:25 +0800 |
| commit | 26890b6b6770214ad63fc9c9564ac75b3227f708 (patch) | |
| tree | 9ce7f8481286581d11c0d9afcf54f20105e20e99 | |
| parent | 4e0686df390908e8fb8fc0c4ef50252626c3c656 (diff) | |
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 <fei.w.wang@intel.com>
Reviewed-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
| -rw-r--r-- | doc/filters.texi | 2 | ||||
| -rw-r--r-- | 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 }, }; |