pulse: avoid unnecessary calculation

Author: tomty89

src/plugins/pulse/ao_pulse.c

@@ -41,7 +41,7 @@
 #include <ao/ao.h>
 #include <ao/plugin.h>
 
-#define AO_PULSE_BUFFER_TIME 20000
+#define AO_PULSE_BUFFER_TIME 20
 
 /* Unfortunately libao doesn't allow "const" for these structures... */
 static char * ao_pulse_options[] = {
@@ -73,7 +73,7 @@ typedef struct ao_pulse_internal {
     struct pa_simple *simple;
     char *server, *sink, *client_name;
     pa_usec_t static_delay;
-    pa_usec_t buffer_time;
+    int buffer_time;
 } ao_pulse_internal;
 
 /* Yes, this is very ugly, but required nonetheless... */
@@ -174,8 +174,8 @@ int ao_plugin_set_option(ao_device *device, const char *key, const char *value)
     } else if (!strcmp(key, "client_name")) {
         free(internal->client_name);
         internal->client_name = strdup(value);
-    }else if (!strcmp(key, "buffer_time")){
-      internal->buffer_time = atoi(value) * 1000;
+    } else if (!strcmp(key, "buffer_time")) {
+        internal->buffer_time = atoi(value);
     }
 
     return 1;
@@ -258,7 +258,7 @@ int ao_plugin_open(ao_device *device, ao_sample_format *format) {
     /* buffering attributes */
     battr.prebuf = battr.minreq = battr.fragsize = battr.maxlength = -1;
 
-    battr.tlength = internal->buffer_time * format->rate / 1000000 *
+    battr.tlength = internal->buffer_time * format->rate / 1000 *
       (format->bits / 8) * device->output_channels;
 
     internal->simple = pa_simple_new(internal->server, t, PA_STREAM_PLAYBACK,