plugins are allowed to use functions from libao, since they don't link with it

git-svn-id: http://svn.xiph.org/trunk/ao@1206 0101bb08-14d6-0310-b084-bc0e0c8e3800

src/plugins/alsa/ao_alsa.c

@@ -53,6 +53,15 @@ ao_info_t ao_alsa_info =
 	"Otuputs to the Advanced Linux Sound Architecture."
 };
 
+static int _is_big_endian(void)
+{
+        uint_16 pattern = 0xbabe;
+        unsigned char *bytewise = (unsigned char *)&pattern;
+
+        if (bytewise[0] == 0xba) return 1;
+        return 0;
+}
+
 void ao_alsa_parse_options(ao_alsa_internal_t *state, ao_option_t *options)
 {
 	state->card = 0;
@@ -87,7 +96,7 @@ ao_internal_t *plugin_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_opti
 	switch (bits) {
 	case 8  : param.format.format = SND_PCM_SFMT_S8;
 		  break;
-        case 16 : param.format.format = ao_is_big_endian() ?
+        case 16 : param.format.format = _is_big_endian() ?
 		    SND_PCM_SFMT_S16_BE : SND_PCM_SFMT_S16_LE;
 		  break;
 	default : return NULL;

src/plugins/oss/ao_oss.c

@@ -55,6 +55,15 @@ typedef struct ao_oss_internal_s {
 	int fd;
 } ao_oss_internal_t;
 
+static int _is_big_endian(void)
+{
+	uint_16 pattern = 0xbabe;
+	unsigned char *bytewise = (unsigned char *)&pattern;
+
+	if (bytewise[0] = 0xba) return 1;
+	return 0;
+}
+
 void ao_oss_parse_options(ao_oss_internal_t *state, ao_option_t *options)
 {
 	state->dev = NULL;
@@ -117,7 +126,7 @@ ao_internal_t *plugin_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_opti
 	{
 	case 8: tmp = AFMT_S8;
 		break;
-        case 16: tmp = ao_is_big_endian() ? AFMT_S16_BE : AFMT_S16_LE;
+        case 16: tmp = _is_big_endian() ? AFMT_S16_BE : AFMT_S16_LE;
 	        break;
 	default:fprintf(stderr,"libao - Unsupported number of bits: %d.",
 			bits);