File faac-1.28-strict-aliasing-punning.patch of Package faac

File faac-1.28-strict-aliasing-punning.patch of Package faac (Revision 909964c519c348c8346f571aa8f5e0a0)

Currently displaying revision 909964c519c348c8346f571aa8f5e0a0 , Show latest

Index: faac-1.28/frontend/input.c
===================================================================
--- faac-1.28.orig/frontend/input.c
+++ faac-1.28/frontend/input.c
@@ -270,13 +270,17 @@ static void chan_remap(int32_t *buf, int
 size_t wav_read_float32(pcmfile_t *sndf, float *buf, size_t num, int *map)
 {
   size_t i = 0;
-  unsigned char bufi[8];
+  union {
+	unsigned char c[8];
+	int i;
+	double d;
+  } bufi;
 
   if ((sndf->samplebytes > 8) || (sndf->samplebytes < 1))
     return 0;
 
   while (i<num) {
-    if (fread(bufi, sndf->samplebytes, 1, sndf->f) != 1)
+    if (fread(&bufi, sndf->samplebytes, 1, sndf->f) != 1)
       break;
 
     if (sndf->isfloat)
@@ -301,7 +305,7 @@ size_t wav_read_float32(pcmfile_t *sndf,
       switch (sndf->samplebytes) {
       case 1:
         /* this is endian clean */
-        buf[i] = ((float)bufi[0] - 128) * (float)256;
+        buf[i] = ((float)bufi.c[0] - 128) * (float)256;
         break;
 
       case 2:
@@ -312,14 +316,14 @@ size_t wav_read_float32(pcmfile_t *sndf,
 #endif
         {
           // swap bytes
-          int16_t s = ((int16_t *)bufi)[0];
+          int16_t s = ((int16_t *)&bufi)[0];
           s = SWAP16(s);
           buf[i] = (float)s;
         }
         else
         {
           // no swap
-          int s = ((int16_t *)bufi)[0];
+          int s = ((int16_t *)&bufi)[0];
           buf[i] = (float)s;
         }
         break;
@@ -327,7 +331,7 @@ size_t wav_read_float32(pcmfile_t *sndf,
       case 3:
         if (!sndf->bigendian)
         {
-          int s = bufi[0] | (bufi[1] << 8) | (bufi[2] << 16);
+          int s = bufi.c[0] | (bufi.c[1] << 8) | (bufi.c[2] << 16);
 
           // fix sign
           if (s & 0x800000)
@@ -337,7 +341,7 @@ size_t wav_read_float32(pcmfile_t *sndf,
         }
         else // big endian input
         {
-          int s = (bufi[0] << 16) | (bufi[1] << 8) | bufi[2];
+          int s = (bufi.c[0] << 16) | (bufi.c[1] << 8) | bufi.c[2];
 
           // fix sign
           if (s & 0x800000)