Hi!
The noise filter claims to support 16bit formats but the output looks broken:
$ ffmpeg -f lavfi -i testsrc=s=3840x2160 -vf
format=yuv444p16le,noise=c0s=10:allf=t -vcodec mpeg4 -qscale 2 -t 1 out.mov
Attached patch removes the 16bit support, fixes ticket #4017, ticket #4029 for
16bit support already exists.
Carl Eugen
diff --git a/libavfilter/vf_noise.c b/libavfilter/vf_noise.c
index 1028a3c..7296567 100644
--- a/libavfilter/vf_noise.c
+++ b/libavfilter/vf_noise.c
@@ -174,7 +174,7 @@ static int query_formats(AVFilterContext *ctx)
for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
- if (desc->flags & AV_PIX_FMT_FLAG_PLANAR &&
!((desc->comp[0].depth_minus1 + 1) & 7))
+ if (desc->flags & AV_PIX_FMT_FLAG_PLANAR && desc->comp[0].depth_minus1
== 7)
ff_add_format(&formats, fmt);
}
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