Add checks to prevent crashes.

The getReceiverInterarrivalJitter() function may be called before the
used audio codec is known in case of early media, so test that the
payload type is valid before using it.

diff --git a/coreapi/linphonecore_jni.cc b/coreapi/linphonecore_jni.cc
index 55041b17a88d3093b88be05e3c70bb62944c65d0..03d5c0df0a8402637187581a0b27f13e95fd15f1 100644 (file)
--- a/coreapi/linphonecore_jni.cc
+++ b/coreapi/linphonecore_jni.cc
@@ -1372,6 +1372,8 @@ extern "C" jfloat Java_org_linphone_core_LinphoneCallStatsImpl_getSenderInterarr
                pt = linphone_call_params_get_used_audio_codec(params);
        else
                pt = linphone_call_params_get_used_video_codec(params);
+       if (!pt || (pt->clock_rate == 0))
+               return (jfloat)0.0;
        return (jfloat)((float)report_block_get_interarrival_jitter(srb) / (float)pt->clock_rate);
 }
 extern "C" jfloat Java_org_linphone_core_LinphoneCallStatsImpl_getReceiverInterarrivalJitter(JNIEnv *env, jobject thiz, jlong stats_ptr, jlong call_ptr) {
@@ -1399,6 +1401,8 @@ extern "C" jfloat Java_org_linphone_core_LinphoneCallStatsImpl_getReceiverIntera
                pt = linphone_call_params_get_used_audio_codec(params);
        else
                pt = linphone_call_params_get_used_video_codec(params);
+       if (!pt || (pt->clock_rate == 0))
+               return (jfloat)0.0;
        return (jfloat)((float)report_block_get_interarrival_jitter(rrb) / (float)pt->clock_rate);
 }
 extern "C" jfloat Java_org_linphone_core_LinphoneCallStatsImpl_getRoundTripDelay(JNIEnv *env, jobject thiz, jlong stats_ptr) {