From: Niklas Haas <g...@haasn.dev>
---
libavfilter/vf_showinfo.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index c706d00c96..b564d03a84 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -887,6 +887,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame
*frame)
dump_color_property(ctx, frame);
+ if (desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
+ const char *alpha_mode_str = av_alpha_mode_name(frame->alpha_mode);
+ if (!alpha_mode_str || frame->alpha_mode == AVALPHA_MODE_UNSPECIFIED)
+ av_log(ctx, AV_LOG_INFO, "alpha_mode:unknown\n");
+ else
+ av_log(ctx, AV_LOG_INFO, "alpha_mode:%s\n", alpha_mode_str);
+ }
+
return ff_filter_frame(inlink->dst->outputs[0], frame);
}
--
2.50.1
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