avcodec/adxenc: fix rounding

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/adxenc.c

@@ -81,7 +81,7 @@ static void adx_encode(ADXContext *c, uint8_t *adx, const int16_t *wav,
     for (i = 0, j = 0; j < 32; i += channels, j++) {
         d = ((wav[i] << COEFF_BITS) - c->coeff[0] * s1 - c->coeff[1] * s2) >> COEFF_BITS;
 
-        d = av_clip(d / scale, -8, 7);
+        d = av_clip(ROUNDED_DIV(d, scale), -8, 7);
 
         put_sbits(&pb, 4, d);
 

tests/ref/acodec/adpcm-adx

@@ -1,4 +1,4 @@
-d82a87942d6500adb4d07d21cbcbdb78 *tests/data/fate/acodec-adpcm-adx.adx
+d7ec7d52a2f5c91464812d031b07cc1d *tests/data/fate/acodec-adpcm-adx.adx
 297720 tests/data/fate/acodec-adpcm-adx.adx
-4e78a1153eb8fc4dfc050836f46b62f8 *tests/data/fate/acodec-adpcm-adx.out.wav
-stddev: 3096.24 PSNR: 26.51 MAXDIFF:53110 bytes:  1058400/  1058432
+5b5a436ec9d528d6eb0bebaf667521b0 *tests/data/fate/acodec-adpcm-adx.out.wav
+stddev: 2549.93 PSNR: 28.20 MAXDIFF:57514 bytes:  1058400/  1058432

tests/ref/acodec/adpcm-adx-trellis

@@ -1,4 +1,4 @@
-d82a87942d6500adb4d07d21cbcbdb78 *tests/data/fate/acodec-adpcm-adx-trellis.adx
+d7ec7d52a2f5c91464812d031b07cc1d *tests/data/fate/acodec-adpcm-adx-trellis.adx
 297720 tests/data/fate/acodec-adpcm-adx-trellis.adx
-4e78a1153eb8fc4dfc050836f46b62f8 *tests/data/fate/acodec-adpcm-adx-trellis.out.wav
-stddev: 3096.24 PSNR: 26.51 MAXDIFF:53110 bytes:  1058400/  1058432
+5b5a436ec9d528d6eb0bebaf667521b0 *tests/data/fate/acodec-adpcm-adx-trellis.out.wav
+stddev: 2549.93 PSNR: 28.20 MAXDIFF:57514 bytes:  1058400/  1058432