Blender to ffmpeg pipe

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Hi.
I want to filter my video with ffmpeg.
Is it possible to create a pipe to do it on a fly?
like that


blender -b test.blend -a | ffmpeg -i - -vf hqdn3d=6:4:6:3 -vcodec mjpeg -qscale 0 -acodec copy test.avi

Thank you