Workaround commandline msys issues, also allow more flexibility.
Should fix ffprobe tests on mingw+MSVC.
tests/data/ffprobe-test.nut: ffmpeg$(HOSTEXESUF) | tests/data
$(M)./$< \
-f lavfi -i "aevalsrc=sin(400*PI*2*t)::d=0.125[out0]; testsrc=d=0.125[out1]; testsrc=s=100x100:d=0.125[out2]" \
- -flags +bitexact -map 0:0 -map 0:1 -map 0:2 \
- -metadata "title=ffprobe test file" \
- -metadata "comment='A comment wih CSV, XML & JSON special chars': <tag value=\"x\">" \
- -metadata "comment2=I ♥ Üñîçød€" \
+ -f ffmetadata -i $(SRC_PATH)/tests/test.ffmeta \
+ -flags +bitexact -map 0:0 -map 0:1 -map 0:2 -map_metadata 1 \
-vcodec rawvideo -acodec pcm_s16le \
-y $@ 2>/dev/null
--- /dev/null
+;FFMETADATA1
+title=ffprobe test file
+comment='A comment wih CSV, XML & JSON special chars': <tag value=\"x\">
+comment2=I ♥ Üñîçød€