Add QAudioBuffer.data()/constData()

Fixes: PYSIDE-1947
Change-Id: I9e1799f245b8d75f61ad9551cb847994ea59bdb9
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit 41de0c478794a7cd67a9e118d6be600ecc15e5e8)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

3 files changed, 47 insertions, 14 deletions

diff --git a/sources/pyside6/PySide6/QtMultimedia/typesystem_multimedia.xml b/sources/pyside6/PySide6/QtMultimedia/typesystem_multimedia.xml
index 61ee89cbf..1bf22761b 100644
--- a/sources/pyside6/PySide6/QtMultimedia/typesystem_multimedia.xml
+++ b/sources/pyside6/PySide6/QtMultimedia/typesystem_multimedia.xml
@@ -51,7 +51,14 @@
         <enum-type name="VolumeScale" since="5.8"/>
     </namespace-type>
 
-    <value-type name="QAudioBuffer"/>
+    <value-type name="QAudioBuffer">
+        <add-function signature="data()" return-type="PyBuffer">
+            <inject-code file="../glue/qtmultimedia.cpp" snippet="qaudiobuffer-data"/>
+        </add-function>
+        <add-function signature="constData()" return-type="PyBuffer">
+            <inject-code file="../glue/qtmultimedia.cpp" snippet="qaudiobuffer-const-data"/>
+        </add-function>
+    </value-type>
     <object-type name="QAudioDecoder">
         <enum-type name="Error"/>
     </object-type>
diff --git a/sources/pyside6/PySide6/glue/qtmultimedia.cpp b/sources/pyside6/PySide6/glue/qtmultimedia.cpp
index 36f831f07..648ec5329 100644
--- a/sources/pyside6/PySide6/glue/qtmultimedia.cpp
+++ b/sources/pyside6/PySide6/glue/qtmultimedia.cpp
@@ -44,3 +44,15 @@
 const auto size = %CPPSELF.mappedBytes(%1);
 %PYARG_0 = Shiboken::Buffer::newObject(%0, size, Shiboken::Buffer::ReadWrite);
 // @snippet qvideoframe-bits
+
+// @snippet qaudiobuffer-data
+unsigned char *data = %CPPSELF.%FUNCTION_NAME<unsigned char>();
+const auto size = %CPPSELF.byteCount();
+%PYARG_0 = Shiboken::Buffer::newObject(data, size, Shiboken::Buffer::ReadWrite);
+// @snippet qaudiobuffer-data
+
+// @snippet qaudiobuffer-const-data
+const unsigned char *data = %CPPSELF.%FUNCTION_NAME<unsigned char>();
+const auto size = %CPPSELF.byteCount();
+%PYARG_0 = Shiboken::Buffer::newObject(data, size);
+// @snippet qaudiobuffer-const-data
diff --git a/sources/pyside6/tests/QtMultimedia/audio_test.py b/sources/pyside6/tests/QtMultimedia/audio_test.py
index a02eeeaa3..263ab0fc8 100644
--- a/sources/pyside6/tests/QtMultimedia/audio_test.py
+++ b/sources/pyside6/tests/QtMultimedia/audio_test.py
@@ -38,25 +38,26 @@ from init_paths import init_test_paths
 init_test_paths(False)
 
 from helper.usesqguiapplication import UsesQGuiApplication
-from PySide6.QtMultimedia import QAudioDevice, QAudioFormat, QMediaDevices
+from PySide6.QtCore import QByteArray
+from PySide6.QtMultimedia import QAudioBuffer, QAudioFormat, QMediaDevices
 
 
 class testAudioDevices(UsesQGuiApplication):
 
-    def testListDevices(self):
-        valid = False
-        devices = QMediaDevices.audioOutputs()
-        if not len(devices):
+    def setUp(self):
+        super().setUp()
+        self._devices = []
+        for d in QMediaDevices.audioOutputs():
+            if d:
+                self._devices.append(d)
+
+    def test_list_devices(self):
+        if not self._devices:
+            print("No audio outputs found")
             return
 
-        valid = True
-        for dev_info in devices:
-            if dev_info.id() == 'null':
-                # skip the test if the only device found is a invalid device
-                if len(devices) == 1:
-                    return
-                else:
-                    continue
+        for dev_info in self._devices:
+            print("Testing ", dev_info.id())
             fmt = QAudioFormat()
             for sample_format in dev_info.supportedSampleFormats():
                 fmt.setSampleFormat(sample_format)
@@ -64,6 +65,19 @@ class testAudioDevices(UsesQGuiApplication):
                 fmt.setSampleRate(dev_info.maximumSampleRate())
                 self.assertTrue(dev_info.isFormatSupported(fmt))
 
+    def test_audiobuffer(self):
+        """PYSIDE-1947: Test QAudioBuffer.data()."""
+        if not self._devices:
+            print("No audio outputs found")
+            return
+        size = 256
+        byte_array = QByteArray(size, '7')
+        buffer = QAudioBuffer(byte_array, self._devices[0].preferredFormat())
+        self.assertEqual(buffer.byteCount(), 256)
+        data = buffer.data()
+        actual_byte_array = QByteArray(bytearray(data))
+        self.assertEqual(byte_array, actual_byte_array)
+
 
 if __name__ == '__main__':
     unittest.main()