fate: increase fuzz for refcmp filter tests

Should fix failing tests on GNU/kFreeBSD x86_32.

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

tests/fate/filter-video.mak

@@ -750,16 +750,16 @@ fate-filter-meta-4560-rotate0: CMD = framecrc -flags +bitexact -c:a aac_fixed -i
 REFCMP_DEPS = FFMPEG LAVFI_INDEV TESTSRC2_FILTER AVGBLUR_FILTER METADATA_FILTER
 
 FATE_FILTER_SAMPLES-$(call ALLYES, $(REFCMP_DEPS) PSNR_FILTER) += fate-filter-refcmp-psnr-rgb
-fate-filter-refcmp-psnr-rgb: CMD = refcmp_metadata psnr rgb24
+fate-filter-refcmp-psnr-rgb: CMD = refcmp_metadata psnr rgb24 0.001
 
 FATE_FILTER_SAMPLES-$(call ALLYES, $(REFCMP_DEPS) PSNR_FILTER) += fate-filter-refcmp-psnr-yuv
-fate-filter-refcmp-psnr-yuv: CMD = refcmp_metadata psnr yuv422p
+fate-filter-refcmp-psnr-yuv: CMD = refcmp_metadata psnr yuv422p 0.0015
 
 FATE_FILTER_SAMPLES-$(call ALLYES, $(REFCMP_DEPS) SSIM_FILTER) += fate-filter-refcmp-ssim-rgb
-fate-filter-refcmp-ssim-rgb: CMD = refcmp_metadata ssim rgb24
+fate-filter-refcmp-ssim-rgb: CMD = refcmp_metadata ssim rgb24 0.015
 
 FATE_FILTER_SAMPLES-$(call ALLYES, $(REFCMP_DEPS) SSIM_FILTER) += fate-filter-refcmp-ssim-yuv
-fate-filter-refcmp-ssim-yuv: CMD = refcmp_metadata ssim yuv422p
+fate-filter-refcmp-ssim-yuv: CMD = refcmp_metadata ssim yuv422p 0.015
 
 FATE_SAMPLES_FFPROBE += $(FATE_METADATA_FILTER-yes)
 FATE_SAMPLES_FFMPEG += $(FATE_FILTER_SAMPLES-yes)