avcodec/imc: cast float to int prior to comparing with int variable

Update FATE test.

Fixes #3886.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavcodec/imc.c

@@ -828,7 +828,7 @@ static void imc_refine_bit_allocation(IMCContext *q, IMCChannel *chctx)
         for (j = band_tab[i]; j < band_tab[i + 1]; j++)
             chctx->sumLenArr[i] += chctx->CWlengthT[j];
         if (chctx->bandFlagsBuf[i])
-            if ((((band_tab[i + 1] - band_tab[i]) * 1.5) > chctx->sumLenArr[i]) && (chctx->sumLenArr[i] > 0))
+            if (((int)((band_tab[i + 1] - band_tab[i]) * 1.5) > chctx->sumLenArr[i]) && (chctx->sumLenArr[i] > 0))
                 chctx->skipFlagRaw[i] = 1;
     }
 

tests/fate/audio.mak

@@ -26,7 +26,7 @@ fate-dss-sp: CMD = framecrc -i $(TARGET_SAMPLES)/dss/sp.dss -frames 30
 FATE_SAMPLES_AUDIO-$(call DEMDEC, AVI, IMC) += fate-imc
 fate-imc: CMD = pcm -i $(TARGET_SAMPLES)/imc/imc.avi
 fate-imc: CMP = oneoff
-fate-imc: REF = $(SAMPLES)/imc/imc.pcm
+fate-imc: REF = $(SAMPLES)/imc/imc-201706.pcm
 
 FATE_SAMPLES_AUDIO-$(call DEMDEC, FLV, NELLYMOSER) += fate-nellymoser
 fate-nellymoser: CMD = pcm -i $(TARGET_SAMPLES)/nellymoser/nellymoser.flv