some more defines.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7622 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_types.h

@@ -296,8 +296,11 @@ SWITCH_DECLARE_DATA extern switch_directories SWITCH_GLOBAL_dirs;
 
 #define SWITCH_MAX_STACKS 32
 #define SWITCH_THREAD_STACKSIZE 240 * 1024
-#define SWITCH_MAX_INTERVAL 120
-#define SWITCH_RECOMMENDED_BUFFER_SIZE 64 * (SWITCH_MAX_INTERVAL + 10)
+#define SWITCH_MAX_INTERVAL 120 /* we only do up to 120ms */
+#define SWITCH_INTERVAL_PAD 10 /* A little extra buffer space to be safe */
+#define SWITCH_MAX_SAMPLE_LEN 32
+#define SWITCH_BYTES_PER_SAMPLE 2 /* slin is 2 bytes per sample */
+#define SWITCH_RECOMMENDED_BUFFER_SIZE (SWITCH_BYTES_PER_SAMPLE * SWITCH_MAX_SAMPLE_LEN * (SWITCH_MAX_INTERVAL + SWITCH_INTERVAL_PAD))
 #define SWITCH_MAX_CODECS 30
 #define SWITCH_MAX_STATE_HANDLERS 30
 #define SWITCH_CORE_QUEUE_LEN 100000