diff --git a/.qmake.conf b/.qmake.conf
index 02554aba..6aa780ca 100644
--- a/.qmake.conf
+++ b/.qmake.conf
@@ -1,4 +1,4 @@
 load(qt_build_config)
 CONFIG += qt_example_installs
 
-MODULE_VERSION = 5.0.2
+MODULE_VERSION = 5.1.0
diff --git a/src/multimedia/audio/qwavedecoder_p.cpp b/src/multimedia/audio/qwavedecoder_p.cpp
index 4b036b20..b75bfaf8 100644
--- a/src/multimedia/audio/qwavedecoder_p.cpp
+++ b/src/multimedia/audio/qwavedecoder_p.cpp
@@ -153,13 +153,15 @@ void QWaveDecoder::handleData()
             chunk descriptor;
             peekChunk(&descriptor);
 
-            if (source->bytesAvailable() < qint64(descriptor.size + sizeof(chunk)))
+            quint32 rawChunkSize = descriptor.size + sizeof(chunk);
+            if (source->bytesAvailable() < qint64(rawChunkSize))
                 return;
 
             WAVEHeader wave;
             source->read(reinterpret_cast<char *>(&wave), sizeof(WAVEHeader));
-            if (descriptor.size > sizeof(WAVEHeader))
-                discardBytes(descriptor.size - sizeof(WAVEHeader));
+
+            if (rawChunkSize > sizeof(WAVEHeader))
+                discardBytes(rawChunkSize - sizeof(WAVEHeader));
 
             // Swizzle this
             if (bigEndian) {
diff --git a/src/plugins/m3u/qm3uhandler.cpp b/src/plugins/m3u/qm3uhandler.cpp
index 6dd3fae3..b2e17fc4 100644
--- a/src/plugins/m3u/qm3uhandler.cpp
+++ b/src/plugins/m3u/qm3uhandler.cpp
@@ -190,7 +190,7 @@ QM3uPlaylistPlugin::~QM3uPlaylistPlugin()
 
 bool QM3uPlaylistPlugin::canRead(QIODevice *device, const QByteArray &format) const
 {
-    return device->isReadable() && (format == "m3u" || format.isEmpty());
+    return device->isReadable() && (format == "m3u" || format == "m3u8" || format.isEmpty());
 }
 
 bool QM3uPlaylistPlugin::canRead(const QUrl& location, const QByteArray &format) const
@@ -198,18 +198,18 @@ bool QM3uPlaylistPlugin::canRead(const QUrl& location, const QByteArray &format)
     if (!QFileInfo(location.toLocalFile()).isReadable())
         return false;
 
-    if (format == "m3u")
+    if (format == "m3u" || format == "m3u8")
         return true;
 
     if (!format.isEmpty())
         return false;
-    else
-        return location.toLocalFile().toLower().endsWith(QLatin1String("m3u"));
+    QString localFile = location.toLocalFile().toLower();
+    return localFile.endsWith(QLatin1String("m3u")) || localFile.endsWith(QLatin1String("m3u8"));
 }
 
 bool QM3uPlaylistPlugin::canWrite(QIODevice *device, const QByteArray &format) const
 {
-    return device->isOpen() && device->isWritable() && format == "m3u";
+    return device->isOpen() && device->isWritable() && (format == "m3u" || format == "m3u8");
 }
 
 QMediaPlaylistReader *QM3uPlaylistPlugin::createReader(QIODevice *device, const QByteArray &format)
diff --git a/tests/auto/cmake/CMakeLists.txt b/tests/auto/cmake/CMakeLists.txt
index 5d23068d..a634b9de 100644
--- a/tests/auto/cmake/CMakeLists.txt
+++ b/tests/auto/cmake/CMakeLists.txt
@@ -9,7 +9,16 @@ find_package(Qt5Core REQUIRED)
 
 include("${_Qt5CTestMacros}")
 
-test_module_includes(
-  Multimedia QCamera
-  MultimediaWidgets QVideoWidget
+set(qt_module_includes
+    Multimedia QCamera
+)
+
+if (NOT NO_WIDGETS)
+    list(APPEND qt_module_includes
+        MultimediaWidgets QVideoWidget
+    )
+endif()
+
+test_module_includes(
+    ${qt_module_includes}
 )
diff --git a/tests/auto/integration/qaudioinput/tst_qaudioinput.cpp b/tests/auto/integration/qaudioinput/tst_qaudioinput.cpp
index c30a1aa3..9fb4dcbf 100755
--- a/tests/auto/integration/qaudioinput/tst_qaudioinput.cpp
+++ b/tests/auto/integration/qaudioinput/tst_qaudioinput.cpp
@@ -631,7 +631,7 @@ void tst_QAudioInput::push()
     QVERIFY(wavHeader.write(*audioFile));
 
     // Set a large buffer to avoid underruns during QTest::qWaits
-    audioInput.setBufferSize(128*1024);
+    audioInput.setBufferSize(audioFormat.bytesForDuration(1000000));
 
     QIODevice* feed = audioInput.start();
 
@@ -699,7 +699,7 @@ void tst_QAudioInput::pushSuspendResume()
     QAudioInput audioInput(audioFormat, this);
 
     audioInput.setNotifyInterval(100);
-    audioInput.setBufferSize(128*1024);
+    audioInput.setBufferSize(audioFormat.bytesForDuration(1000000));
 
     QSignalSpy notifySignal(&audioInput, SIGNAL(notify()));
     QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));
diff --git a/tests/auto/unit/qwavedecoder/data/isawav_1_16_44100_le_2.wav b/tests/auto/unit/qwavedecoder/data/isawav_1_16_44100_le_2.wav
new file mode 100644
index 00000000..087e68e8
Binary files /dev/null and b/tests/auto/unit/qwavedecoder/data/isawav_1_16_44100_le_2.wav differ
diff --git a/tests/auto/unit/qwavedecoder/tst_qwavedecoder.cpp b/tests/auto/unit/qwavedecoder/tst_qwavedecoder.cpp
index c74fb51a..49473722 100644
--- a/tests/auto/unit/qwavedecoder/tst_qwavedecoder.cpp
+++ b/tests/auto/unit/qwavedecoder/tst_qwavedecoder.cpp
@@ -130,6 +130,8 @@ void tst_QWaveDecoder::file_data()
     QTest::newRow("File isawav_1_16_44100_le.wav") << testFilePath("isawav_1_16_44100_le.wav")  << tst_QWaveDecoder::None << 1 << 16 << 44100 << QAudioFormat::LittleEndian;
     QTest::newRow("File isawav_2_16_8000_be.wav") << testFilePath("isawav_2_16_8000_be.wav")  << tst_QWaveDecoder::None << 2 << 16 << 8000 << QAudioFormat::BigEndian;
     QTest::newRow("File isawav_2_16_44100_be.wav") << testFilePath("isawav_2_16_44100_be.wav")  << tst_QWaveDecoder::None << 2 << 16 << 44100 << QAudioFormat::BigEndian;
+    // The next file has extra data in the wave header.
+    QTest::newRow("File isawav_1_16_44100_le_2.wav") << testFilePath("isawav_1_16_44100_le_2.wav")  << tst_QWaveDecoder::None << 1 << 16 << 44100 << QAudioFormat::LittleEndian;
 
     // 32 bit waves are not supported
     QTest::newRow("File isawav_1_32_8000_le.wav") << testFilePath("isawav_1_32_8000_le.wav")  << tst_QWaveDecoder::FormatDescriptor << 1 << 32 << 8000 << QAudioFormat::LittleEndian;