shithub: mp3dec

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add perf script

--- a/minimp3.c

+++ b/minimp3.c

@@ -787,10 +787,10 @@

 #if HAVE_SIMD

     if (have_simd()) for (; i < n - 3; i += 4)

     {

-        f4 vl = VLD(left+i);

-        f4 vr = VLD(right+i);

-        VSTORE(left+i, VADD(vl, vr));

-        VSTORE(right+i, VSUB(vl, vr));

+        f4 vl = VLD(left + i);

+        f4 vr = VLD(right + i);

+        VSTORE(left + i, VADD(vl, vr));

+        VSTORE(right + i, VSUB(vl, vr));

     }

 #endif

     for (; i < n; i++)

@@ -990,10 +990,10 @@

         si[0] = grbuf[17];

         for (i = 0; i < 4; i++)

         {

-            si[8-2*i] = grbuf[4*i+1] - grbuf[4*i+2];

-            co[1+2*i] = grbuf[4*i+1] + grbuf[4*i+2];

-            si[7-2*i] = grbuf[4*i+4] - grbuf[4*i+3];

-            co[2+2*i] = -(grbuf[4*i+3] + grbuf[4*i+4]);

+            si[8 - 2*i] =   grbuf[4*i + 1] - grbuf[4*i + 2];

+            co[1 + 2*i] =   grbuf[4*i + 1] + grbuf[4*i + 2];

+            si[7 - 2*i] =   grbuf[4*i + 4] - grbuf[4*i + 3];

+            co[2 + 2*i] = -(grbuf[4*i + 3] + grbuf[4*i + 4]);

         }

         L3_dct3_9(co);

         L3_dct3_9(si);

@@ -1024,11 +1024,11 @@

 #endif

         for (; i < 9; i++)

         {

-            float ovl = overlap[i];

+            float ovl  = overlap[i];

             float sum  = co[i]*g_twid9[9 + i] + si[i]*g_twid9[0 + i];

             overlap[i] = co[i]*g_twid9[0 + i] - si[i]*g_twid9[9 + i];

-            grbuf[i]    = ovl*window[0 + i] - sum*window[9 + i];

-            grbuf[17-i] = ovl*window[9 + i] + sum*window[0 + i];

+            grbuf[i]      = ovl*window[0 + i] - sum*window[9 + i];

+            grbuf[17 - i] = ovl*window[9 + i] + sum*window[0 + i];

         }

     }

 }

@@ -1178,17 +1178,17 @@

         for (x = t[0], i = 0; i < 8; i++, x++)

         {

             f4 x0 = VLD(&y[i*18]);

-            f4 x1 = VLD(&y[(15-i)*18]);

-            f4 x2 = VLD(&y[(16+i)*18]);

-            f4 x3 = VLD(&y[(31-i)*18]);

+            f4 x1 = VLD(&y[(15 - i)*18]);

+            f4 x2 = VLD(&y[(16 + i)*18]);

+            f4 x3 = VLD(&y[(31 - i)*18]);

             f4 t0 = VADD(x0, x3);

             f4 t1 = VADD(x1, x2);

-            f4 t2 = VMUL_S(VSUB(x1, x2), g_sec[3*i+0]);

-            f4 t3 = VMUL_S(VSUB(x0, x3), g_sec[3*i+1]);

+            f4 t2 = VMUL_S(VSUB(x1, x2), g_sec[3*i + 0]);

+            f4 t3 = VMUL_S(VSUB(x0, x3), g_sec[3*i + 1]);

             x[0] = VADD(t0, t1);

-            x[8] = VMUL_S(VSUB(t0, t1), g_sec[3*i+2]);

+            x[8] = VMUL_S(VSUB(t0, t1), g_sec[3*i + 2]);

             x[16] = VADD(t3, t2);

-            x[24] = VMUL_S(VSUB(t3, t2), g_sec[3*i+2]);

+            x[24] = VMUL_S(VSUB(t3, t2), g_sec[3*i + 2]);

         }

         for (x = t[0], i = 0; i < 4; i++, x += 8)

         {

@@ -1217,7 +1217,7 @@

             x[7] = VMUL_S(VSUB(xt, x7), 2.56291556f);

         }

-        if (k > n-3)

+        if (k > n - 3)

         {

 #if HAVE_SSE

 #define VSAVE2(i, v) _mm_storel_pi((__m64 *)&y[i*18], v)

@@ -1695,7 +1695,7 @@

         psnr = 99.0;

     else

         psnr = 10.0*log10(((double)0x7fff*0x7fff)/MSE);

-    printf("samples=%d max_diff=%d PSNR=%f\n", total_samples, maxdiff, psnr);

+    printf("rate=%d samples=%d max_diff=%d PSNR=%f\n", info.hz, total_samples, maxdiff, psnr);

     if (psnr < 96)

     {

         printf("PSNR compliance failed\n");

--- a/scripts/build.sh

+++ b/scripts/build.sh

@@ -1,3 +1,9 @@

+_FILENAME=${0##*/}

+CUR_DIR=${0/${_FILENAME}}

+CUR_DIR=$(cd $(dirname ${CUR_DIR}); pwd)/$(basename ${CUR_DIR})/

+

+pushd $CUR_DIR/..

+

 set -e

 if [ ! -d "fate-suite.ffmpeg.org" ]; then

--- /dev/null

+++ b/scripts/perf.sh

@@ -1,0 +1,12 @@

+_FILENAME=${0##*/}

+CUR_DIR=${0/${_FILENAME}}

+CUR_DIR=$(cd $(dirname ${CUR_DIR}); pwd)/$(basename ${CUR_DIR})/

+

+pushd $CUR_DIR/..

+

+APP=./minimp3

+

+for i in fate-suite.ffmpeg.org/mp3-conformance/*.bit; do

+perf stat -e cycles $APP $i ${i%.*}.pcm

+done

+