FS-5148: noise at beginning of call, probably from uncleaned buffer

diff --git a/src/mod/endpoints/mod_gsmopen/mod_gsmopen.cpp b/src/mod/endpoints/mod_gsmopen/mod_gsmopen.cpp
index 1474f779083f2832edc914eb585d90b4e221708a..bae1906fe381d9dc7848f8ca67c09ba7543b1863 100644 (file)
--- a/src/mod/endpoints/mod_gsmopen/mod_gsmopen.cpp
+++ b/src/mod/endpoints/mod_gsmopen/mod_gsmopen.cpp
@@ -509,6 +509,8 @@ static switch_status_t channel_on_init(switch_core_session_t *session)
        tech_pvt = (private_t *) switch_core_session_get_private(session);
        switch_assert(tech_pvt != NULL);
 
+       memset(tech_pvt->buffer2, 0, sizeof(tech_pvt->buffer2));
+
        channel = switch_core_session_get_channel(session);
        switch_assert(channel != NULL);
        //ERRORA("%s CHANNEL INIT\n", GSMOPEN_P_LOG, tech_pvt->name);
@@ -559,6 +561,7 @@ static switch_status_t channel_on_destroy(switch_core_session_t *session)
                if (tech_pvt->phone_callflow == CALLFLOW_STATUS_FINISHED) {
                        tech_pvt->phone_callflow = CALLFLOW_CALL_IDLE;
                }
+               memset(tech_pvt->buffer2, 0, sizeof(tech_pvt->buffer2));
                switch_core_session_set_private(session, NULL);
        } else {
                DEBUGA_GSMOPEN("!!!!!!NO tech_pvt!!!! CHANNEL DESTROY %s\n", GSMOPEN_P_LOG, switch_core_session_get_uuid(session));
@@ -757,6 +760,7 @@ static switch_status_t channel_read_frame(switch_core_session_t *session, switch
        if (tech_pvt->no_sound) {
                goto cng;
        }
+       memset(buffer2, 0, sizeof(buffer2));
        samples = tech_pvt->serialPort_serial_audio->Read(buffer2, 640);
 
        if (samples >= 320) {
@@ -778,6 +782,7 @@ static switch_status_t channel_read_frame(switch_core_session_t *session, switch
                        tech_pvt->buffer2_full = 0;
                        samples = 320;
                        DEBUGA_GSMOPEN("samples=%d FROM BUFFER\n", GSMOPEN_P_LOG, samples);
+                       memset(tech_pvt->buffer2, 0, sizeof(tech_pvt->buffer2));
                }
 
        }
@@ -793,6 +798,7 @@ static switch_status_t channel_read_frame(switch_core_session_t *session, switch
        switch_mutex_unlock(tech_pvt->flag_mutex);
 
        if (samples != 320) {
+               memset(tech_pvt->buffer2, 0, sizeof(tech_pvt->buffer2));
                if (samples != 0) {
                        DEBUGA_GSMOPEN("samples=%d, goto cng\n", GSMOPEN_P_LOG, samples);
                }