2 files changed, 2 insertions, 2 deletions
diff --git a/src/multimedia/audio/qaudioinput_mac_p.cpp b/src/multimedia/audio/qaudioinput_mac_p.cpp
index f394ca4..7ab8c27 100644
--- a/src/multimedia/audio/qaudioinput_mac_p.cpp
+++ b/src/multimedia/audio/qaudioinput_mac_p.cpp
@@ -710,7 +710,7 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
 {
     QIODevice*  op = device;
 
-    if (!open()) {
+    if (!audioFormat.isValid() || !open()) {
         stateCode = QAudio::StoppedState;
         errorCode = QAudio::OpenError;
         return audioIO;
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.cpp b/src/multimedia/audio/qaudiooutput_mac_p.cpp
index 6f32257..b457fed 100644
--- a/src/multimedia/audio/qaudiooutput_mac_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_mac_p.cpp
@@ -435,7 +435,7 @@ QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 {
     QIODevice*  op = device;
 
-    if (!open()) {
+    if (!audioFormat.isValid() || !open()) {
         stateCode = QAudio::StoppedState;
         errorCode = QAudio::OpenError;
         return audioIO;