always generate frames on sleep

diff --git a/src/switch_ivr.c b/src/switch_ivr.c
index e0aa689e5c81a7e5ddacd8a6b55c1baa22f861ab..a90576b8f866e37956b35d79ccac24d8b19c150b 100644 (file)
--- a/src/switch_ivr.c
+++ b/src/switch_ivr.c
@@ -138,7 +138,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_sleep(switch_core_session_t *session,
        unsigned char *abuf = NULL;
        switch_codec_implementation_t imp = { 0 };
        switch_codec_t codec = { 0 };
-       int sval = 0;
+       int sval = -1;
        const char *var;
 
        /*
@@ -192,6 +192,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_sleep(switch_core_session_t *session,
 
                write_frame.codec = &codec;
                switch_zmalloc(abuf, SWITCH_RECOMMENDED_BUFFER_SIZE);
+               memset(abuf, 255, SWITCH_RECOMMENDED_BUFFER_SIZE);
                write_frame.data = abuf;
                write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
                write_frame.datalen = imp.decoded_bytes_per_packet;
@@ -294,7 +295,9 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_sleep(switch_core_session_t *session,
                }
 
                if (sval && write_frame.datalen) {
-                       switch_generate_sln_silence((int16_t *) write_frame.data, write_frame.samples, sval);
+                       if (sval > 0) {
+                               switch_generate_sln_silence((int16_t *) write_frame.data, write_frame.samples, sval);
+                       }
                        switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
                } else {
                        switch_core_session_write_frame(session, &cng_frame, SWITCH_IO_FLAG_NONE, 0);