[FFmpeg-cvslog] avfilter/vf_premultiply: Remove always-false format check

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Tue Sep 21 06:09:26 2021 +0200| [b6de483cb432277348f735fc3cba4567fb94eef0] | committer: Andreas Rheinhardt

avfilter/vf_premultiply: Remove always-false format check

These filters use ff_set_common_formats_from_list().

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b6de483cb432277348f735fc3cba4567fb94eef0
---

 libavfilter/vf_premultiply.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/libavfilter/vf_premultiply.c b/libavfilter/vf_premultiply.c
index a76c08405c..ada249fc55 100644
--- a/libavfilter/vf_premultiply.c
+++ b/libavfilter/vf_premultiply.c
@@ -700,10 +700,6 @@ static int config_output(AVFilterLink *outlink)
     if (!s->inplace) {
         alpha = ctx->inputs[1];
 
-        if (base->format != alpha->format) {
-            av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
-            return AVERROR(EINVAL);
-        }
         if (base->w                       != alpha->w ||
             base->h                       != alpha->h) {
             av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "