[PATCH v2 2/4] qcap: Use a function table for video capture driver operations.

Zebediah Figura z.figura12 at gmail.com
Mon Jun 29 10:26:16 CDT 2020


Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
 dlls/qcap/qcap_private.h |  40 ++++----
 dlls/qcap/v4l.c          | 211 ++++++++++++++++-----------------------
 dlls/qcap/vfwcapture.c   |  78 ++++++++-------
 3 files changed, 151 insertions(+), 178 deletions(-)

diff --git a/dlls/qcap/qcap_private.h b/dlls/qcap/qcap_private.h
index 688bebb201..823f8fed93 100644
--- a/dlls/qcap/qcap_private.h
+++ b/dlls/qcap/qcap_private.h
@@ -40,23 +40,29 @@ HRESULT file_writer_create(IUnknown *outer, IUnknown **out) DECLSPEC_HIDDEN;
 HRESULT smart_tee_create(IUnknown *outer, IUnknown **out) DECLSPEC_HIDDEN;
 HRESULT vfw_capture_create(IUnknown *outer, IUnknown **out) DECLSPEC_HIDDEN;
 
-typedef struct _Capture Capture;
+struct video_capture_device
+{
+    const struct video_capture_device_ops *ops;
+};
 
-Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_destroy(Capture *device) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_check_format(Capture *device, const AM_MEDIA_TYPE *mt) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_set_format(Capture *device, AM_MEDIA_TYPE *mt) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_get_caps(Capture *device, LONG index, AM_MEDIA_TYPE **mt,
-        VIDEO_STREAM_CONFIG_CAPS *vscc) DECLSPEC_HIDDEN;
-LONG qcap_driver_get_caps_count(Capture *device) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_get_format(const Capture *device, AM_MEDIA_TYPE **mt) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_get_prop_range(Capture *device, VideoProcAmpProperty property,
-        LONG *min, LONG *max, LONG *step, LONG *default_value, LONG *flags) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_get_prop(Capture *device, VideoProcAmpProperty property, LONG *value, LONG *flags) DECLSPEC_HIDDEN;
-HRESULT qcap_driver_set_prop(Capture *device, VideoProcAmpProperty property, LONG value, LONG flags) DECLSPEC_HIDDEN;
-void qcap_driver_init_stream(Capture *device) DECLSPEC_HIDDEN;
-void qcap_driver_start_stream(Capture *device) DECLSPEC_HIDDEN;
-void qcap_driver_stop_stream(Capture *device) DECLSPEC_HIDDEN;
-void qcap_driver_cleanup_stream(Capture *device) DECLSPEC_HIDDEN;
+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_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,
+            LONG *min, LONG *max, LONG *step, LONG *default_value, LONG *flags);
+    HRESULT (*get_prop)(struct video_capture_device *device, VideoProcAmpProperty property, LONG *value, LONG *flags);
+    HRESULT (*set_prop)(struct video_capture_device *device, VideoProcAmpProperty property, LONG value, LONG flags);
+    void (*init_stream)(struct video_capture_device *device);
+    void (*start_stream)(struct video_capture_device *device);
+    void (*stop_stream)(struct video_capture_device *device);
+    void (*cleanup_stream)(struct video_capture_device *device);
+};
+
+struct video_capture_device *v4l_device_create(struct strmbase_source *pin, USHORT card);
 
 #endif
diff --git a/dlls/qcap/v4l.c b/dlls/qcap/v4l.c
index a8841272a3..5c2de2e3d6 100644
--- a/dlls/qcap/v4l.c
+++ b/dlls/qcap/v4l.c
@@ -88,8 +88,10 @@ struct caps
     VIDEO_STREAM_CONFIG_CAPS config;
 };
 
-struct _Capture
+struct v4l_device
 {
+    struct video_capture_device d;
+
     const struct caps *current_caps;
     struct caps *caps;
     LONG caps_count;
@@ -101,6 +103,11 @@ struct _Capture
     HANDLE thread, run_event;
 };
 
+static inline struct v4l_device *v4l_device(struct video_capture_device *iface)
+{
+    return CONTAINING_RECORD(iface, struct v4l_device, d);
+}
+
 static int xioctl(int fd, int request, void * arg)
 {
     int r;
@@ -112,18 +119,18 @@ static int xioctl(int fd, int request, void * arg)
     return r;
 }
 
-HRESULT qcap_driver_destroy(Capture *device)
+static void v4l_device_destroy(struct video_capture_device *iface)
 {
+    struct v4l_device *device = v4l_device(iface);
+
     if (device->fd != -1)
         video_close(device->fd);
     if (device->caps_count)
         heap_free(device->caps);
     heap_free(device);
-
-    return S_OK;
 }
 
-static const struct caps *find_caps(Capture *device, const AM_MEDIA_TYPE *mt)
+static const struct caps *find_caps(struct v4l_device *device, const AM_MEDIA_TYPE *mt)
 {
     const VIDEOINFOHEADER *video_info = (VIDEOINFOHEADER *)mt->pbFormat;
     LONG index;
@@ -143,8 +150,10 @@ static const struct caps *find_caps(Capture *device, const AM_MEDIA_TYPE *mt)
     return NULL;
 }
 
-HRESULT qcap_driver_check_format(Capture *device, const AM_MEDIA_TYPE *mt)
+static HRESULT v4l_device_check_format(struct video_capture_device *iface, const AM_MEDIA_TYPE *mt)
 {
+    struct v4l_device *device = v4l_device(iface);
+
     TRACE("device %p, mt %p.\n", device, mt);
 
     if (!mt)
@@ -159,7 +168,7 @@ HRESULT qcap_driver_check_format(Capture *device, const AM_MEDIA_TYPE *mt)
     return E_FAIL;
 }
 
-static BOOL set_caps(Capture *device, const struct caps *caps)
+static BOOL set_caps(struct v4l_device *device, const struct caps *caps)
 {
     struct v4l2_format format = {0};
     LONG width, height;
@@ -185,8 +194,9 @@ static BOOL set_caps(Capture *device, const struct caps *caps)
     return TRUE;
 }
 
-HRESULT qcap_driver_set_format(Capture *device, AM_MEDIA_TYPE *mt)
+static HRESULT v4l_device_set_format(struct video_capture_device *iface, const AM_MEDIA_TYPE *mt)
 {
+    struct v4l_device *device = v4l_device(iface);
     const struct caps *caps;
 
     caps = find_caps(device, mt);
@@ -202,8 +212,10 @@ HRESULT qcap_driver_set_format(Capture *device, AM_MEDIA_TYPE *mt)
     return S_OK;
 }
 
-HRESULT qcap_driver_get_format(const Capture *device, 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;
@@ -229,9 +241,10 @@ static __u32 v4l2_cid_from_qcap_property(VideoProcAmpProperty property)
     }
 }
 
-HRESULT qcap_driver_get_prop_range(Capture *device, VideoProcAmpProperty property,
+static HRESULT v4l_device_get_prop_range(struct video_capture_device *iface, VideoProcAmpProperty property,
         LONG *min, LONG *max, LONG *step, LONG *default_value, LONG *flags)
 {
+    struct v4l_device *device = v4l_device(iface);
     struct v4l2_queryctrl ctrl;
 
     ctrl.id = v4l2_cid_from_qcap_property(property);
@@ -250,9 +263,10 @@ HRESULT qcap_driver_get_prop_range(Capture *device, VideoProcAmpProperty propert
     return S_OK;
 }
 
-HRESULT qcap_driver_get_prop(Capture *device, VideoProcAmpProperty property,
-        LONG *value, LONG *flags)
+static HRESULT v4l_device_get_prop(struct video_capture_device *iface,
+        VideoProcAmpProperty property, LONG *value, LONG *flags)
 {
+    struct v4l_device *device = v4l_device(iface);
     struct v4l2_control ctrl;
 
     ctrl.id = v4l2_cid_from_qcap_property(property);
@@ -269,9 +283,10 @@ HRESULT qcap_driver_get_prop(Capture *device, VideoProcAmpProperty property,
     return S_OK;
 }
 
-HRESULT qcap_driver_set_prop(Capture *device, VideoProcAmpProperty property,
-        LONG value, LONG flags)
+static HRESULT v4l_device_set_prop(struct video_capture_device *iface,
+        VideoProcAmpProperty property, LONG value, LONG flags)
 {
+    struct v4l_device *device = v4l_device(iface);
     struct v4l2_control ctrl;
 
     ctrl.id = v4l2_cid_from_qcap_property(property);
@@ -286,7 +301,7 @@ HRESULT qcap_driver_set_prop(Capture *device, VideoProcAmpProperty property,
     return S_OK;
 }
 
-static void reverse_image(const Capture *device, LPBYTE output, const BYTE *input)
+static void reverse_image(struct v4l_device *device, LPBYTE output, const BYTE *input)
 {
     int inoffset, outoffset, pitch;
     UINT width, height, depth;
@@ -311,7 +326,7 @@ static void reverse_image(const Capture *device, LPBYTE output, const BYTE *inpu
 
 static DWORD WINAPI ReadThread(LPVOID lParam)
 {
-    Capture * capBox = lParam;
+    struct v4l_device *capBox = lParam;
     HRESULT hr;
     IMediaSample *pSample = NULL;
     ULONG framecount = 0;
@@ -372,8 +387,9 @@ static DWORD WINAPI ReadThread(LPVOID lParam)
     return 0;
 }
 
-void qcap_driver_init_stream(Capture *device)
+static void v4l_device_init_stream(struct video_capture_device *iface)
 {
+    struct v4l_device *device = v4l_device(iface);
     ALLOCATOR_PROPERTIES req_props, ret_props;
     HRESULT hr;
 
@@ -397,20 +413,23 @@ void qcap_driver_init_stream(Capture *device)
     device->thread = CreateThread(NULL, 0, ReadThread, device, 0, NULL);
 }
 
-void qcap_driver_start_stream(Capture *device)
+static void v4l_device_start_stream(struct video_capture_device *iface)
 {
+    struct v4l_device *device = v4l_device(iface);
     device->state = State_Running;
     SetEvent(device->run_event);
 }
 
-void qcap_driver_stop_stream(Capture *device)
+static void v4l_device_stop_stream(struct video_capture_device *iface)
 {
+    struct v4l_device *device = v4l_device(iface);
     device->state = State_Paused;
     ResetEvent(device->run_event);
 }
 
-void qcap_driver_cleanup_stream(Capture *device)
+static void v4l_device_cleanup_stream(struct video_capture_device *iface)
 {
+    struct v4l_device *device = v4l_device(iface);
     HRESULT hr;
 
     device->state = State_Stopped;
@@ -460,12 +479,53 @@ static void fill_caps(__u32 pixelformat, __u32 width, __u32 height,
     caps->pixelformat = pixelformat;
 }
 
-Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
+static HRESULT v4l_device_get_caps(struct video_capture_device *iface, LONG index,
+        AM_MEDIA_TYPE **type, VIDEO_STREAM_CONFIG_CAPS *vscc)
+{
+    struct v4l_device *device = v4l_device(iface);
+
+    if (index >= device->caps_count)
+        return S_FALSE;
+
+    *type = CreateMediaType(&device->caps[index].media_type);
+    if (!*type)
+        return E_OUTOFMEMORY;
+
+    if (vscc)
+        memcpy(vscc, &device->caps[index].config, sizeof(VIDEO_STREAM_CONFIG_CAPS));
+    return S_OK;
+}
+
+static LONG v4l_device_get_caps_count(struct video_capture_device *iface)
+{
+    struct v4l_device *device = v4l_device(iface);
+
+    return device->caps_count;
+}
+
+static const struct video_capture_device_ops v4l_device_ops =
+{
+    .destroy = v4l_device_destroy,
+    .check_format = v4l_device_check_format,
+    .set_format = v4l_device_set_format,
+    .get_format = v4l_device_get_format,
+    .get_caps = v4l_device_get_caps,
+    .get_caps_count = v4l_device_get_caps_count,
+    .get_prop_range = v4l_device_get_prop_range,
+    .get_prop = v4l_device_get_prop,
+    .set_prop = v4l_device_set_prop,
+    .init_stream = v4l_device_init_stream,
+    .start_stream = v4l_device_start_stream,
+    .stop_stream = v4l_device_stop_stream,
+    .cleanup_stream = v4l_device_cleanup_stream,
+};
+
+struct video_capture_device *v4l_device_create(struct strmbase_source *pin, USHORT card)
 {
     struct v4l2_frmsizeenum frmsize = {0};
     struct v4l2_capability caps = {{0}};
     struct v4l2_format format = {0};
-    Capture *device = NULL;
+    struct v4l_device *device;
     BOOL have_libv4l2;
     char path[20];
     int fd, i;
@@ -597,6 +657,7 @@ Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
         goto error;
     }
 
+    device->d.ops = &v4l_device_ops;
     device->pin = pin;
     device->state = State_Stopped;
     device->run_event = CreateEventW(NULL, TRUE, FALSE, NULL);
@@ -605,117 +666,19 @@ Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
             device->current_caps->video_info.bmiHeader.biWidth,
             device->current_caps->video_info.bmiHeader.biHeight);
 
-    return device;
+    return &device->d;
 
 error:
-    qcap_driver_destroy(device);
+    v4l_device_destroy(&device->d);
     return NULL;
 }
 
-HRESULT qcap_driver_get_caps(Capture *device, LONG index, AM_MEDIA_TYPE **type,
-        VIDEO_STREAM_CONFIG_CAPS *vscc)
-{
-    if (index >= device->caps_count)
-        return S_FALSE;
-
-    *type = CreateMediaType(&device->caps[index].media_type);
-    if (!*type)
-        return E_OUTOFMEMORY;
-
-    if (vscc)
-        memcpy(vscc, &device->caps[index].config, sizeof(VIDEO_STREAM_CONFIG_CAPS));
-    return S_OK;
-}
-
-LONG qcap_driver_get_caps_count(Capture *device)
-{
-    return device->caps_count;
-}
-
 #else
 
-Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
+struct video_capture_device *v4l_device_create(struct strmbase_source *pin, USHORT card)
 {
-    static const char msg[] =
-        "The v4l headers were not available at compile time,\n"
-        "so video capture support is not available.\n";
-    MESSAGE(msg);
+    ERR("v4l2 was not present at compilation time.\n");
     return NULL;
 }
 
-#define FAIL_WITH_ERR \
-    ERR("v4l absent: shouldn't be called\n"); \
-    return E_NOTIMPL
-
-HRESULT qcap_driver_destroy(Capture *capBox)
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_check_format(Capture *device, const AM_MEDIA_TYPE *mt)
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_get_prop_range( Capture *capBox,
-        VideoProcAmpProperty  Property, LONG *pMin, LONG *pMax,
-        LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_get_prop(Capture *capBox,
-        VideoProcAmpProperty Property, LONG *lValue, LONG *Flags)
-{
-    FAIL_WITH_ERR;
-}
-
-HRESULT qcap_driver_set_prop(Capture *capBox, VideoProcAmpProperty Property,
-        LONG lValue, LONG Flags)
-{
-    FAIL_WITH_ERR;
-}
-
-void qcap_driver_init_stream(Capture *device)
-{
-    ERR("v4l absent: shouldn't be called\n");
-}
-
-void qcap_driver_start_stream(Capture *device)
-{
-    ERR("v4l absent: shouldn't be called\n");
-}
-
-void qcap_driver_stop_stream(Capture *device)
-{
-    ERR("v4l absent: shouldn't be called\n");
-}
-
-void qcap_driver_cleanup_stream(Capture *device)
-{
-    ERR("v4l absent: shouldn't be called\n");
-}
-
-HRESULT qcap_driver_get_caps(Capture *device, LONG index, AM_MEDIA_TYPE **type,
-        VIDEO_STREAM_CONFIG_CAPS *vscc)
-{
-    FAIL_WITH_ERR;
-}
-
-LONG qcap_driver_get_caps_count(Capture *device)
-{
-    ERR("v4l absent: shouldn't be called\n");
-    return 0;
-}
-
 #endif /* defined(VIDIOCMCAPTURE) */
diff --git a/dlls/qcap/vfwcapture.c b/dlls/qcap/vfwcapture.c
index b48b2316d7..9f4b859863 100644
--- a/dlls/qcap/vfwcapture.c
+++ b/dlls/qcap/vfwcapture.c
@@ -31,7 +31,8 @@ typedef struct VfwCapture
     IAMFilterMiscFlags IAMFilterMiscFlags_iface;
     IPersistPropertyBag IPersistPropertyBag_iface;
     BOOL init;
-    Capture *driver_info;
+
+    struct video_capture_device *device;
 
     struct strmbase_source source;
     IKsPropertySet IKsPropertySet_iface;
@@ -84,8 +85,8 @@ static void vfw_capture_destroy(struct strmbase_filter *iface)
     if (filter->init)
     {
         if (filter->filter.state != State_Stopped)
-            qcap_driver_stop_stream(filter->driver_info);
-        qcap_driver_destroy(filter->driver_info);
+            filter->device->ops->stop_stream(filter->device);
+        filter->device->ops->destroy(filter->device);
     }
 
     if (filter->source.pin.peer)
@@ -122,7 +123,7 @@ static HRESULT vfw_capture_init_stream(struct strmbase_filter *iface)
 {
     VfwCapture *filter = impl_from_strmbase_filter(iface);
 
-    qcap_driver_init_stream(filter->driver_info);
+    filter->device->ops->init_stream(filter->device);
     return VFW_S_CANT_CUE;
 }
 
@@ -130,7 +131,7 @@ static HRESULT vfw_capture_start_stream(struct strmbase_filter *iface, REFERENCE
 {
     VfwCapture *filter = impl_from_strmbase_filter(iface);
 
-    qcap_driver_start_stream(filter->driver_info);
+    filter->device->ops->start_stream(filter->device);
     return S_OK;
 }
 
@@ -138,7 +139,7 @@ static HRESULT vfw_capture_stop_stream(struct strmbase_filter *iface)
 {
     VfwCapture *filter = impl_from_strmbase_filter(iface);
 
-    qcap_driver_stop_stream(filter->driver_info);
+    filter->device->ops->stop_stream(filter->device);
     return VFW_S_CANT_CUE;
 }
 
@@ -146,7 +147,7 @@ static HRESULT vfw_capture_cleanup_stream(struct strmbase_filter *iface)
 {
     VfwCapture *filter = impl_from_strmbase_filter(iface);
 
-    qcap_driver_cleanup_stream(filter->driver_info);
+    filter->device->ops->cleanup_stream(filter->device);
     return S_OK;
 }
 
@@ -211,7 +212,7 @@ AMStreamConfig_SetFormat(IAMStreamConfig *iface, AM_MEDIA_TYPE *pmt)
             return VFW_E_INVALIDMEDIATYPE;
     }
 
-    hr = qcap_driver_set_format(This->driver_info, pmt);
+    hr = This->device->ops->set_format(This->device, pmt);
     if (SUCCEEDED(hr) && This->filter.graph && This->source.pin.peer)
     {
         hr = IFilterGraph_Reconnect(This->filter.graph, &This->source.pin.IPin_iface);
@@ -222,14 +223,14 @@ 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 **pmt)
 {
-    VfwCapture *This = impl_from_IAMStreamConfig(iface);
+    VfwCapture *filter = impl_from_IAMStreamConfig(iface);
     HRESULT hr;
 
-    TRACE("%p -> (%p)\n", iface, pmt);
-    hr = qcap_driver_get_format(This->driver_info, pmt);
+    TRACE("filter %p, mt %p.\n", filter, pmt);
+
+    hr = filter->device->ops->get_format(filter->device, pmt);
     if (SUCCEEDED(hr))
         strmbase_dump_media_type(*pmt);
     return hr;
@@ -245,7 +246,7 @@ static HRESULT WINAPI AMStreamConfig_GetNumberOfCapabilities(IAMStreamConfig *if
     if (!count || !size)
         return E_POINTER;
 
-    *count = qcap_driver_get_caps_count(filter->driver_info);
+    *count = filter->device->ops->get_caps_count(filter->device);
     *size = sizeof(VIDEO_STREAM_CONFIG_CAPS);
 
     return S_OK;
@@ -258,7 +259,7 @@ static HRESULT WINAPI AMStreamConfig_GetStreamCaps(IAMStreamConfig *iface,
 
     TRACE("filter %p, index %d, pmt %p, vscc %p.\n", filter, index, pmt, vscc);
 
-    return qcap_driver_get_caps(filter->driver_info, index, pmt, (VIDEO_STREAM_CONFIG_CAPS *)vscc);
+    return filter->device->ops->get_caps(filter->device, index, pmt, (VIDEO_STREAM_CONFIG_CAPS *)vscc);
 }
 
 static const IAMStreamConfigVtbl IAMStreamConfig_VTable =
@@ -294,32 +295,36 @@ static ULONG WINAPI AMVideoProcAmp_Release(IAMVideoProcAmp * iface)
     return IUnknown_Release(This->filter.outer_unk);
 }
 
-static HRESULT WINAPI
-AMVideoProcAmp_GetRange( IAMVideoProcAmp * iface, LONG Property, LONG *pMin,
-        LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
+static HRESULT WINAPI AMVideoProcAmp_GetRange(IAMVideoProcAmp *iface, LONG property,
+        LONG *min, LONG *max, LONG *step, LONG *default_value, LONG *flags)
 {
-    VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
+    VfwCapture *filter = impl_from_IAMVideoProcAmp(iface);
+
+    TRACE("filter %p, property %#x, min %p, max %p, step %p, default_value %p, flags %p.\n",
+            filter, property, min, max, step, default_value, flags);
 
-    return qcap_driver_get_prop_range( This->driver_info, Property, pMin, pMax,
-                   pSteppingDelta, pDefault, pCapsFlags );
+    return filter->device->ops->get_prop_range(filter->device, property, min,
+            max, step, default_value, flags);
 }
 
-static HRESULT WINAPI
-AMVideoProcAmp_Set( IAMVideoProcAmp * iface, LONG Property, LONG lValue,
-                    LONG Flags )
+static HRESULT WINAPI AMVideoProcAmp_Set(IAMVideoProcAmp *iface, LONG property,
+        LONG value, LONG flags)
 {
-    VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
+    VfwCapture *filter = impl_from_IAMVideoProcAmp(iface);
 
-    return qcap_driver_set_prop(This->driver_info, Property, lValue, Flags);
+    TRACE("filter %p, property %#x, value %d, flags %#x.\n", filter, property, value, flags);
+
+    return filter->device->ops->set_prop(filter->device, property, value, flags);
 }
 
-static HRESULT WINAPI
-AMVideoProcAmp_Get( IAMVideoProcAmp * iface, LONG Property, LONG *lValue,
-                    LONG *Flags )
+static HRESULT WINAPI AMVideoProcAmp_Get(IAMVideoProcAmp *iface, LONG property,
+        LONG *value, LONG *flags)
 {
-    VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
+    VfwCapture *filter = impl_from_IAMVideoProcAmp(iface);
+
+    TRACE("filter %p, property %#x, value %p, flags %p.\n", filter, property, value, flags);
 
-    return qcap_driver_get_prop(This->driver_info, Property, lValue, Flags);
+    return filter->device->ops->get_prop(filter->device, property, value, flags);
 }
 
 static const IAMVideoProcAmpVtbl IAMVideoProcAmp_VTable =
@@ -388,8 +393,7 @@ PPB_Load( IPersistPropertyBag * iface, IPropertyBag *pPropBag,
 
     if (SUCCEEDED(hr))
     {
-        This->driver_info = qcap_driver_init(&This->source, V_I4(&var));
-        if (This->driver_info)
+        if ((This->device = v4l_device_create(&This->source, V_I4(&var))))
         {
             This->init = TRUE;
             hr = S_OK;
@@ -505,7 +509,7 @@ static inline VfwCapture *impl_from_strmbase_pin(struct strmbase_pin *pin)
 static HRESULT source_query_accept(struct strmbase_pin *pin, const AM_MEDIA_TYPE *mt)
 {
     VfwCapture *filter = impl_from_strmbase_pin(pin);
-    return qcap_driver_check_format(filter->driver_info, mt);
+    return filter->device->ops->check_format(filter->device, mt);
 }
 
 static HRESULT source_get_media_type(struct strmbase_pin *pin,
@@ -515,11 +519,11 @@ static HRESULT source_get_media_type(struct strmbase_pin *pin,
     AM_MEDIA_TYPE *vfw_pmt;
     HRESULT hr;
 
-    if (index >= qcap_driver_get_caps_count(filter->driver_info))
+    if (index >= filter->device->ops->get_caps_count(filter->device))
         return VFW_S_NO_MORE_ITEMS;
 
-    hr = qcap_driver_get_caps(filter->driver_info, index, &vfw_pmt, NULL);
-    if (SUCCEEDED(hr)) {
+    if (SUCCEEDED(hr = filter->device->ops->get_caps(filter->device, index, &vfw_pmt, NULL)))
+    {
         CopyMediaType(pmt, vfw_pmt);
         DeleteMediaType(vfw_pmt);
     }
-- 
2.27.0




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