Missing decoder: H.265

[Armin Erkert]

Hi,
I'm new one gstreamer and i have a problem to extract the images from  
files created with ffmpeg. Launching the
gstreamer on my Win10 PC in with




gst-launch-1.0.exe filesrc location=F11.mov ! decodebin ! videoconvert  
! video/x-raw,format=GRAY8 ! multifilesink location=u%d.bmp

I get following messages:
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Missing element: H.265 decoder
ERROR: from element /GstPipeline:pipeline0/GstDecodeBin:decodebin0:  
Your GStreamer installation is missing a plug-in.
Additional debug info:
../gst/playback/gstdecodebin2.c(4720): gst_decode_bin_expose ():  
/GstPipeline:pipeline0/GstDecodeBin:decodebin0:
no suitable plugins found:
Missing decoder: H.265 (video/x-h265,  
stream-format=(string)byte-stream, alignment=(string)au,  
level=(string)5, tier=(string)main, profile=(string)monochrome,  
width=(int)2464, height=(int)2056, framerate=(fraction)25/1,  
pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive,  
chroma-format=(string)4:0:0, bit-depth-luma=(uint)8,  
bit-depth-chroma=(uint)0, parsed=(boolean)true)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

I installed both:
gstreamer-1.0-devel-msvc-x86_64-1.18.4.msi
gstreamer-1.0-msvc-x86_64-1.18.4.msi



Is there any work around / decoder that I Can use ?



Regards
Armin