fate/mp3: use the f32le format as output

Those tests test the float decoder, so it is preferable to dump the
decoder output directly instead of converting it to s16.

tests/fate/mp3.mak

 FATE_MP3 += fate-mp3-float-conf-compl
-fate-mp3-float-conf-compl: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/compl.bit
-fate-mp3-float-conf-compl: REF = $(SAMPLES)/mp3-conformance/compl_2.pcm
+fate-mp3-float-conf-compl: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/compl.bit -f f32le -
+fate-mp3-float-conf-compl: REF = $(SAMPLES)/mp3-conformance/compl.f32
 
 FATE_MP3 += fate-mp3-float-conf-he_32khz
-fate-mp3-float-conf-he_32khz: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_32khz.bit -af atrim=end_sample=171648
-fate-mp3-float-conf-he_32khz: REF = $(SAMPLES)/mp3-conformance/he_32khz.pcm
+fate-mp3-float-conf-he_32khz: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_32khz.bit -af atrim=end_sample=171648 -f f32le -
+fate-mp3-float-conf-he_32khz: REF = $(SAMPLES)/mp3-conformance/he_32khz.f32
 
 FATE_MP3 += fate-mp3-float-conf-he_44khz
-fate-mp3-float-conf-he_44khz: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_44khz.bit -af atrim=end_sample=471168
-fate-mp3-float-conf-he_44khz: REF = $(SAMPLES)/mp3-conformance/he_44khz.pcm
+fate-mp3-float-conf-he_44khz: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_44khz.bit -af atrim=end_sample=471168 -f f32le -
+fate-mp3-float-conf-he_44khz: REF = $(SAMPLES)/mp3-conformance/he_44khz.f32
 
 FATE_MP3 += fate-mp3-float-conf-he_48khz
-fate-mp3-float-conf-he_48khz: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_48khz.bit -af atrim=end_sample=171648
-fate-mp3-float-conf-he_48khz: REF = $(SAMPLES)/mp3-conformance/he_48khz.pcm
+fate-mp3-float-conf-he_48khz: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/he_48khz.bit -af atrim=end_sample=171648 -f f32le -
+fate-mp3-float-conf-he_48khz: REF = $(SAMPLES)/mp3-conformance/he_48khz.f32
 
 FATE_MP3 += fate-mp3-float-conf-hecommon
-fate-mp3-float-conf-hecommon: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/hecommon.bit -af atrim=end_sample=33408
-fate-mp3-float-conf-hecommon: REF = $(SAMPLES)/mp3-conformance/hecommon.pcm
+fate-mp3-float-conf-hecommon: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/hecommon.bit -af atrim=end_sample=33408 -f f32le -
+fate-mp3-float-conf-hecommon: REF = $(SAMPLES)/mp3-conformance/hecommon.f32
 
 FATE_MP3 += fate-mp3-float-conf-si
-fate-mp3-float-conf-si: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/si.bit -af atrim=end_sample=134784
-fate-mp3-float-conf-si: REF = $(SAMPLES)/mp3-conformance/si.pcm
+fate-mp3-float-conf-si: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/si.bit -af atrim=end_sample=134784 -f f32le -
+fate-mp3-float-conf-si: REF = $(SAMPLES)/mp3-conformance/si.f32
 
 FATE_MP3 += fate-mp3-float-conf-si_block
-fate-mp3-float-conf-si_block: CMD = pcm -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/si_block.bit -af atrim=end_sample=72576
-fate-mp3-float-conf-si_block: REF = $(SAMPLES)/mp3-conformance/si_block.pcm
+fate-mp3-float-conf-si_block: CMD = avconv -acodec mp3float -i $(TARGET_SAMPLES)/mp3-conformance/si_block.bit -af atrim=end_sample=72576 -f f32le -
+fate-mp3-float-conf-si_block: REF = $(SAMPLES)/mp3-conformance/si_block.f32
 
 FATE_MP3 += fate-mp3-float-extra_overread
-fate-mp3-float-extra_overread: CMD = pcm -c:a mp3float -i $(TARGET_SAMPLES)/mpegaudio/extra_overread.mp3
-fate-mp3-float-extra_overread: REF = $(SAMPLES)/mpegaudio/extra_overread.pcm
+fate-mp3-float-extra_overread: CMD = avconv -c:a mp3float -i $(TARGET_SAMPLES)/mpegaudio/extra_overread.mp3 -f f32le -
+fate-mp3-float-extra_overread: REF = $(SAMPLES)/mpegaudio/extra_overread.f32
 
-$(FATE_MP3): CMP = stddev
-$(FATE_MP3): FUZZ = 0.07
+$(FATE_MP3): CMP = oneoff
+$(FATE_MP3): CMP_UNIT = f32
+$(FATE_MP3): FUZZ = 17
 
 FATE_MP3-$(call DEMDEC, MP3, MP3FLOAT) += $(FATE_MP3)