qcap: Pass a single AM_MEDIA_TYPE pointer to get_format().

dlls/qcap/qcap_private.h

@@ -50,7 +50,7 @@ struct video_capture_device_ops
     void (*destroy)(struct video_capture_device *device);
     HRESULT (*check_format)(struct video_capture_device *device, const AM_MEDIA_TYPE *mt);
     HRESULT (*set_format)(struct video_capture_device *device, const AM_MEDIA_TYPE *mt);
-    HRESULT (*get_format)(struct video_capture_device *device, AM_MEDIA_TYPE **mt);
+    HRESULT (*get_format)(struct video_capture_device *device, AM_MEDIA_TYPE *mt);
     HRESULT (*get_caps)(struct video_capture_device *device, LONG index, AM_MEDIA_TYPE **mt, VIDEO_STREAM_CONFIG_CAPS *caps);
     LONG (*get_caps_count)(struct video_capture_device *device);
     HRESULT (*get_prop_range)(struct video_capture_device *device, VideoProcAmpProperty property,

dlls/qcap/v4l.c

@@ -212,15 +212,11 @@ static HRESULT v4l_device_set_format(struct video_capture_device *iface, const A
     return S_OK;
 }
 
-static HRESULT v4l_device_get_format(struct video_capture_device *iface, AM_MEDIA_TYPE **mt)
+static HRESULT v4l_device_get_format(struct video_capture_device *iface, AM_MEDIA_TYPE *mt)
 {
     struct v4l_device *device = v4l_device(iface);
 
-    *mt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
-    if (!*mt)
-        return E_OUTOFMEMORY;
-
-    return CopyMediaType(*mt, &device->current_caps->media_type);
+    return CopyMediaType(mt, &device->current_caps->media_type);
 }
 
 static __u32 v4l2_cid_from_qcap_property(VideoProcAmpProperty property)

dlls/qcap/vfwcapture.c

@@ -223,16 +223,18 @@ AMStreamConfig_SetFormat(IAMStreamConfig *iface, AM_MEDIA_TYPE *pmt)
     return hr;
 }
 
-static HRESULT WINAPI AMStreamConfig_GetFormat(IAMStreamConfig *iface, AM_MEDIA_TYPE **pmt)
+static HRESULT WINAPI AMStreamConfig_GetFormat(IAMStreamConfig *iface, AM_MEDIA_TYPE **mt)
 {
     VfwCapture *filter = impl_from_IAMStreamConfig(iface);
     HRESULT hr;
 
-    TRACE("filter %p, mt %p.\n", filter, pmt);
+    TRACE("filter %p, mt %p.\n", filter, mt);
 
-    hr = filter->device->ops->get_format(filter->device, pmt);
-    if (SUCCEEDED(hr))
-        strmbase_dump_media_type(*pmt);
+    if (!(*mt = CoTaskMemAlloc(sizeof(**mt))))
+        return E_OUTOFMEMORY;
+
+    if (SUCCEEDED(hr = filter->device->ops->get_format(filter->device, *mt)))
+        strmbase_dump_media_type(*mt);
     return hr;
 }