Add VAAPI into tests & VPL sample

modules/gapi/CMakeLists.txt

@@ -334,6 +334,7 @@ if(HAVE_GAPI_ONEVPL)
       message(FATAL_ERROR "PkgConfig not found: building HAVE_GAPI_ONEVPL without libVA support is impossible on UNIX systems")
     endif()
     ocv_target_link_libraries(${the_module} PRIVATE ${PKG_LIBVA_LIBRARIES} ${PKG_THREAD_LIBRARIES})
+    ocv_target_link_libraries(opencv_test_gapi PRIVATE ${PKG_LIBVA_LIBRARIES} ${PKG_THREAD_LIBRARIES})
   endif()
 endif()
 
@@ -373,6 +374,9 @@ if(TARGET example_gapi_onevpl_infer_single_roi)
   if(HAVE_D3D11 AND HAVE_OPENCL)
     ocv_target_include_directories(example_gapi_onevpl_infer_single_roi SYSTEM PRIVATE ${OPENCL_INCLUDE_DIRS})
   endif()
+  if(PKG_LIBVA_FOUND)
+    ocv_target_link_libraries(example_gapi_onevpl_infer_single_roi PRIVATE ${PKG_LIBVA_LIBRARIES} ${PKG_THREAD_LIBRARIES})
+  endif()
 endif()
 
 if(TARGET example_gapi_pipeline_modeling_tool)

modules/gapi/include/opencv2/gapi/streaming/onevpl/accel_types.hpp

@@ -65,6 +65,10 @@ GAPI_EXPORTS Device create_dx11_device(Device::Ptr device_ptr,
                                        const std::string& device_name);
 GAPI_EXPORTS Context create_dx11_context(Context::Ptr ctx_ptr);
 
+GAPI_EXPORTS Device create_vaapi_device(Device::Ptr device_ptr,
+                                       const std::string& device_name,
+                                       int file_description = -1);
+GAPI_EXPORTS Context create_vaapi_context(Context::Ptr ctx_ptr);
 } // namespace onevpl
 } // namespace wip
 } // namespace gapi

modules/gapi/samples/onevpl_infer_single_roi.cpp

@@ -34,6 +34,17 @@
 #endif // HAVE_DIRECTX
 #endif // HAVE_INF_ENGINE
 
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#include "va/va.h"
+#include "va/va_drm.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // __linux__
+
+
 const std::string about =
     "This is an OpenCV-based version of oneVPLSource decoder example";
 const std::string keys =
@@ -41,14 +52,21 @@ const std::string keys =
     "{ input                        |                                           | Path to the input demultiplexed video file }"
     "{ output                       |                                           | Path to the output RAW video file. Use .avi extension }"
     "{ facem                        | face-detection-adas-0001.xml              | Path to OpenVINO IE face detection model (.xml) }"
-    "{ faced                        | AUTO                                      | Target device for face detection model (e.g. AUTO, GPU, VPU, ...) }"
-    "{ cfg_params                   | <prop name>:<value>;<prop name>:<value>   | Semicolon separated list of oneVPL mfxVariants which is used for configuring source (see `MFXSetConfigFilterProperty` by https://spec.oneapi.io/versions/latest/elements/oneVPL/source/index.html) }"
+    "{ faced                        | GPU                                       | Target device for face detection model (e.g. AUTO, GPU, VPU, ...) }"
+    "{ cfg_params                   |                                           | Semicolon separated list of oneVPL mfxVariants which is used for configuring source (see `MFXSetConfigFilterProperty` by https://spec.oneapi.io/versions/latest/elements/oneVPL/source/index.html) }"
     "{ streaming_queue_capacity     | 1                                         | Streaming executor queue capacity. Calculated automatically if 0 }"
     "{ frames_pool_size             | 0                                         | OneVPL source applies this parameter as preallocated frames pool size}"
     "{ vpp_frames_pool_size         | 0                                         | OneVPL source applies this parameter as preallocated frames pool size for VPP preprocessing results}"
-    "{ roi                          | -1,-1,-1,-1                               | Region of interest (ROI) to use for inference. Identified automatically when not set }";
+    "{ roi                          | -1,-1,-1,-1                               | Region of interest (ROI) to use for inference. Identified automatically when not set }"
+    "{ source_device                | CPU                                       | choose device for decoding }"
+    "{ preproc_device               | CPU                                       | choose device for preprocessing }";
+
 
 namespace {
+bool is_gpu(const std::string &device_name) {
+    return device_name.find("GPU") != std::string::npos;
+}
+
 std::string get_weights_path(const std::string &model_path) {
     const auto EXT_LEN = 4u;
     const auto sz = model_path.size();
@@ -260,6 +278,75 @@ GAPI_OCV_KERNEL(OCVParseSSD, ParseSSD) {
 
 namespace cfg {
 typename cv::gapi::wip::onevpl::CfgParam create_from_string(const std::string &line);
+
+struct flow {
+    flow(bool preproc, bool rctx) :
+        vpl_preproc_enable(preproc),
+        ie_remote_ctx_enable(rctx) {
+    }
+    bool vpl_preproc_enable = false;
+    bool ie_remote_ctx_enable = false;
+};
+
+using support_matrix =
+        std::map <std::string/*source_dev_id*/,
+                  std::map<std::string/*preproc_device_id*/,
+                           std::map <std::string/*rctx device_id*/, std::shared_ptr<flow>>>>;
+support_matrix resolved_conf{{
+                            {"GPU", {{
+                                        {"",    {{ "CPU", std::make_shared<flow>(false, false)},
+                                                 { "GPU", {/* unsupported:
+                                                           * ie GPU preproc isn't available */}}
+                                                }},
+
+                                        {"CPU", {{ "CPU", {/* unsupported: preproc mix */}},
+                                                 { "GPU", {/* unsupported: preproc mix */}}
+                                                }},
+
+                                        {"GPU", {{ "CPU", std::make_shared<flow>(true, false)},
+                                                 { "GPU", std::make_shared<flow>(true, true)}}}
+                                    }}
+                            },
+                            {"CPU", {{
+                                        {"",    {{ "CPU", std::make_shared<flow>(false, false)},
+                                                 { "GPU", std::make_shared<flow>(false, false)}
+                                                }},
+
+                                        {"CPU", {{ "CPU", std::make_shared<flow>(true, false)},
+                                                 { "GPU", std::make_shared<flow>(true, false)}
+                                                }},
+
+                                        {"GPU", {{ "CPU", {/* unsupported: preproc mix */}},
+                                                 { "GPU", {/* unsupported: preproc mix */}}}}
+                                    }}
+                            }
+                        }};
+
+static void print_available_cfg(std::ostream &out,
+                                const std::string &source_device,
+                                const std::string &preproc_device,
+                                const std::string &ie_device_id) {
+    const std::string source_device_cfg_name("--source_device=");
+    const std::string preproc_device_cfg_name("--preproc_device=");
+    const std::string ie_cfg_name("--faced=");
+    out << "unsupported acceleration param combinations:\n"
+                     << source_device_cfg_name << source_device << " "
+                     << preproc_device_cfg_name << preproc_device << " "
+                     << ie_cfg_name << ie_device_id <<
+                     "\n\nSupported matrix:\n\n" << std::endl;
+    for (const auto &s_d : cfg::resolved_conf) {
+        std::string prefix = source_device_cfg_name + s_d.first;
+        for (const auto &p_d : s_d.second) {
+            std::string mid_prefix = prefix + +"\t" + preproc_device_cfg_name +
+                                    (p_d.first.empty() ? "" : p_d.first);
+            for (const auto &i_d : p_d.second) {
+                if (i_d.second) {
+                    std::cerr << mid_prefix << "\t" << ie_cfg_name <<i_d.first << std::endl;
+                }
+            }
+        }
+    }
+}
 }
 
 int main(int argc, char *argv[]) {
@@ -280,6 +367,15 @@ int main(int argc, char *argv[]) {
     const auto source_decode_queue_capacity = cmd.get<uint32_t>("frames_pool_size");
     const auto source_vpp_queue_capacity = cmd.get<uint32_t>("vpp_frames_pool_size");
     const auto device_id = cmd.get<std::string>("faced");
+    const auto source_device = cmd.get<std::string>("source_device");
+    const auto preproc_device = cmd.get<std::string>("preproc_device");
+
+    // validate support matrix
+    std::shared_ptr<cfg::flow> flow_settings = cfg::resolved_conf[source_device][preproc_device][device_id];
+    if (!flow_settings) {
+        cfg::print_available_cfg(std::cerr, source_device, preproc_device, device_id);
+        return -1;
+    }
 
     // check output file extension
     if (!output.empty()) {
@@ -303,6 +399,7 @@ int main(int argc, char *argv[]) {
         return -1;
     }
 
+    // apply VPL source optimization params
     if (source_decode_queue_capacity != 0) {
         source_cfgs.push_back(cv::gapi::wip::onevpl::CfgParam::create_frames_pool_size(source_decode_queue_capacity));
     }
@@ -316,22 +413,57 @@ int main(int argc, char *argv[]) {
         device_id
     };
 
-    // Create device_ptr & context_ptr using graphic API
-    // InferenceEngine requires such device & context to create its own
-    // remote shared context through InferenceEngine::ParamMap in
-    // GAPI InferenceEngine backend to provide interoperability with onevpl::GSource
-    // So GAPI InferenceEngine backend and onevpl::GSource MUST share the same
-    // device and context
-    cv::util::optional<cv::gapi::wip::onevpl::Device> accel_device;
-    cv::util::optional<cv::gapi::wip::onevpl::Context> accel_ctx;
-
-#ifdef HAVE_INF_ENGINE
+    // It is allowed (and highly recommended) to reuse predefined device_ptr & context_ptr objects
+    // received from user application. Current sample demonstrate how to deal with this situation.
+    //
+    // But if you do not need this fine-grained acceleration devices configuration then
+    // just use default constructors for onevpl::GSource, IE and preprocessing module.
+    // But please pay attention that default pipeline construction in this case will be
+    // very inefficient and carries out multiple CPU-GPU memory copies
+    //
+    // If you want to reach max performance and seize copy-free approach for specific
+    // device & context selection then follow the steps below.
+    // The situation is complicated a little bit in comparison with default configuration, thus
+    // let's focusing this:
+    //
+    // - all component-participants (Source, Preprocessing, Inference)
+    // must share the same device & context instances
+    //
+    // - you must wrapping your available device & context instancs into thin
+    // `cv::gapi::wip::Device` & `cv::gapi::wip::Context`.
+    // !!! Please pay attention that both objects are weak wrapper so you must ensure
+    // that device & context would be alived before full pipeline created !!!
+    //
+    // - you should pass such wrappers as constructor arguments for each component in pipeline:
+    //      a) use extended constructor for `onevpl::GSource` for activating predefined device & context
+    //      b) use `cfgContextParams` method of `cv::gapi::ie::Params` to enable `PreprocesingEngine`
+    // for predefined device & context
+    //      c) use `InferenceEngine::ParamMap` to activate remote ctx in Inference Engine for given
+    // device & context
+    //
+    //
+    //// P.S. the current sample supports heterogenous pipeline construction also.
+    //// It is possible to make up mixed device approach.
+    //// Please feel free to explore different configurations!
+
+    cv::util::optional<cv::gapi::wip::onevpl::Device> gpu_accel_device;
+    cv::util::optional<cv::gapi::wip::onevpl::Context> gpu_accel_ctx;
+    cv::gapi::wip::onevpl::Device cpu_accel_device = cv::gapi::wip::onevpl::create_host_device();
+    cv::gapi::wip::onevpl::Context cpu_accel_ctx = cv::gapi::wip::onevpl::create_host_context();
+    // create GPU device if requested
+    if (is_gpu(device_id)
+        || is_gpu(source_device)
+        || is_gpu(preproc_device)) {
 #ifdef HAVE_DIRECTX
 #ifdef HAVE_D3D11
+        // create DX11 device & context owning handles.
+        // wip::Device & wip::Context provide non-owning semantic of resources and act
+        // as weak references API wrappers in order to carry type-erased resources type
+        // into appropriate modules: onevpl::GSource, PreprocEngine and InferenceEngine
+        // Until modules are not created owner handles must stay alive
         auto dx11_dev = createCOMPtrGuard<ID3D11Device>();
         auto dx11_ctx = createCOMPtrGuard<ID3D11DeviceContext>();
 
-    if (device_id.find("GPU") != std::string::npos) {
         auto adapter_factory = createCOMPtrGuard<IDXGIFactory>();
         {
             IDXGIFactory* out_factory = nullptr;
@@ -365,40 +497,102 @@ int main(int argc, char *argv[]) {
         }
 
         std::tie(dx11_dev, dx11_ctx) = create_device_with_ctx(intel_adapter.get());
-        accel_device = cv::util::make_optional(
+        gpu_accel_device = cv::util::make_optional(
                             cv::gapi::wip::onevpl::create_dx11_device(
                                                         reinterpret_cast<void*>(dx11_dev.get()),
-                                                        device_id));
-        accel_ctx = cv::util::make_optional(
+                                                        "GPU"));
+        gpu_accel_ctx = cv::util::make_optional(
                             cv::gapi::wip::onevpl::create_dx11_context(
                                                         reinterpret_cast<void*>(dx11_ctx.get())));
+#endif // HAVE_D3D11
+#endif // HAVE_DIRECTX
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+        static const char *predefined_vaapi_devices_list[] {"/dev/dri/renderD128",
+                                                            "/dev/dri/renderD129",
+                                                            "/dev/dri/card0",
+                                                            "/dev/dri/card1",
+                                                            nullptr};
+        std::stringstream ss;
+        int device_fd = -1;
+        VADisplay va_handle = nullptr;
+        for (const char **device_path = predefined_vaapi_devices_list;
+            *device_path != nullptr; device_path++) {
+            device_fd = open(*device_path, O_RDWR);
+            if (device_fd < 0) {
+                std::string info("Cannot open GPU file: \"");
+                info = info + *device_path + "\", error: " + strerror(errno);
+                ss << info << std::endl;
+                continue;
+            }
+            va_handle = vaGetDisplayDRM(device_fd);
+            if (!va_handle) {
+                close(device_fd);
+                std::string info("VAAPI device vaGetDisplayDRM failed, error: ");
+                info += strerror(errno);
+                ss << info << std::endl;
+                continue;
+            }
+            int major_version = 0, minor_version = 0;
+            VAStatus status {};
+            status = vaInitialize(va_handle, &major_version, &minor_version);
+            if (VA_STATUS_SUCCESS != status) {
+                close(device_fd);
+                va_handle = nullptr;
+
+                std::string info("Cannot initialize VAAPI device, error: ");
+                info += vaErrorStr(status);
+                ss << info << std::endl;
+                continue;
+            }
+            std::cout << "VAAPI created for device: " << *device_path << ", version: "
+                      << major_version << "." << minor_version << std::endl;
+            break;
+        }
 
-        // put accel type description for VPL source
-        source_cfgs.push_back(cfg::create_from_string(
-                                        "mfxImplDescription.AccelerationMode"
-                                        ":"
-                                        "MFX_ACCEL_MODE_VIA_D3D11"));
+        // check device creation
+        if (!va_handle) {
+            std::cerr << "Cannot create VAAPI device. Log:\n" << ss.str() << std::endl;
+            return -1;
+        }
+        gpu_accel_device = cv::util::make_optional(
+                            cv::gapi::wip::onevpl::create_vaapi_device(reinterpret_cast<void*>(va_handle),
+                                                                       "GPU", device_fd));
+        gpu_accel_ctx = cv::util::make_optional(
+                            cv::gapi::wip::onevpl::create_vaapi_context(nullptr));
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // #ifdef __linux__
     }
 
-#endif // HAVE_D3D11
-#endif // HAVE_DIRECTX
-    // set ctx_config for GPU device only - no need in case of CPU device type
-    if (accel_device.has_value() &&
-        accel_device.value().get_name().find("GPU") != std::string::npos) {
+#ifdef HAVE_INF_ENGINE
+    // activate remote ctx in Inference Engine for GPU device
+    // when other pipeline component use the GPU device too
+    if (flow_settings->ie_remote_ctx_enable) {
         InferenceEngine::ParamMap ctx_config({{"CONTEXT_TYPE", "VA_SHARED"},
-                                              {"VA_DEVICE", accel_device.value().get_ptr()} });
+                                              {"VA_DEVICE", gpu_accel_device.value().get_ptr()} });
         face_net.cfgContextParams(ctx_config);
+        std::cout << "enforce InferenceEngine remote context on device: " << device_id << std::endl;
 
         // NB: consider NV12 surface because it's one of native GPU image format
         face_net.pluginConfig({{"GPU_NV12_TWO_INPUTS", "YES" }});
+        std::cout << "enforce InferenceEngine NV12 blob" << std::endl;
     }
 #endif // HAVE_INF_ENGINE
 
-    // turn on preproc
-    if (accel_device.has_value() && accel_ctx.has_value()) {
-        face_net.cfgPreprocessingParams(accel_device.value(),
-                                        accel_ctx.value());
-        std::cout << "enforce VPP preprocessing on " << device_id << std::endl;
+    // turn on VPP PreprocesingEngine if available & requested
+    if (flow_settings->vpl_preproc_enable) {
+        if (is_gpu(preproc_device)) {
+            // activate VPP PreprocesingEngine on GPU
+            face_net.cfgPreprocessingParams(gpu_accel_device.value(),
+                                            gpu_accel_ctx.value());
+        } else {
+            // activate VPP PreprocesingEngine on CPU
+            face_net.cfgPreprocessingParams(cpu_accel_device,
+                                            cpu_accel_ctx);
+        }
+        std::cout << "enforce VPP preprocessing on device: " << preproc_device << std::endl;
+    } else {
+        std::cout << "use InferenceEngine default preprocessing" << std::endl;
     }
 
     auto kernels = cv::gapi::kernels
@@ -414,10 +608,17 @@ int main(int argc, char *argv[]) {
     // Create source
     cv::gapi::wip::IStreamSource::Ptr cap;
     try {
-        if (accel_device.has_value() && accel_ctx.has_value()) {
+        if (is_gpu(source_device)) {
+            std::cout << "enforce VPL Source deconding on device: " << source_device << std::endl;
+            // use special 'Device' constructor for `onevpl::GSource`
+            // put accel type description for VPL source
+            source_cfgs.push_back(cfg::create_from_string(
+                                        "mfxImplDescription.AccelerationMode"
+                                        ":"
+                                        "MFX_ACCEL_MODE_VIA_D3D11"));
             cap = cv::gapi::wip::make_onevpl_src(file_path, source_cfgs,
-                                                 accel_device.value(),
-                                                 accel_ctx.value());
+                                                 gpu_accel_device.value(),
+                                                 gpu_accel_ctx.value());
         } else {
             cap = cv::gapi::wip::make_onevpl_src(file_path, source_cfgs);
         }

modules/gapi/src/backends/ie/giebackend.cpp

@@ -300,6 +300,7 @@ struct IEUnit {
                             cv::util::any_cast<InferenceEngine::ParamMap>(&params.context_config);
         if (ctx_params != nullptr) {
             auto ie_core = cv::gimpl::ie::wrap::getCore();
+            GAPI_LOG_DEBUG(nullptr, "create IE remote ctx for device id: " << params.device_id);
             rctx = ie_core.CreateContext(params.device_id, *ctx_params);
         }
 
@@ -703,23 +704,28 @@ cv::MediaFrame preprocess_frame_impl(cv::MediaFrame &&in_frame, const std::strin
     return std::move(in_frame);
 }
 
-inline IE::Blob::Ptr extractRemoteBlob(IECallContext& ctx, std::size_t i,
-                                       const std::string &layer_name,
+inline IE::Blob::Ptr extractBlob(IECallContext& ctx,
+                                 std::size_t i,
+                                 cv::gapi::ie::TraitAs hint,
+                                 const std::string& layer_name,
                                  const cv::util::optional<cv::Rect> &opt_roi,
-                                       cv::MediaFrame* out_keep_alive_frame,
-                                       bool* out_is_preprocessed) {
-    GAPI_Assert(ctx.inShape(i) == cv::GShape::GFRAME &&
-                "Remote blob is supported for MediaFrame only");
-    cv::MediaFrame frame = ctx.inFrame(i);
+                                 cv::MediaFrame* out_keep_alive_frame = nullptr,
+                                 bool* out_is_preprocessed = nullptr) {
+    switch (ctx.inShape(i)) {
+        case cv::GShape::GFRAME: {
+            auto frame = ctx.inFrame(i);
             if (ctx.uu.preproc_engine_impl) {
-        GAPI_LOG_DEBUG(nullptr, "Try to use preprocessing for decoded remote frame in remote ctx");
+                GAPI_LOG_DEBUG(nullptr, "Try to use preprocessing for decoded frame in local ctx");
                 frame = preprocess_frame_impl(std::move(frame), layer_name, ctx, opt_roi,
                                               out_keep_alive_frame, out_is_preprocessed);
             }
 
+            // NB: check OV remote device context availability.
+            // if it exist and MediaFrame shares the same device context
+            // then we create a remote blob without memory copy
+            if (ctx.uu.rctx != nullptr) {
                 // Request params for result frame whatever it got preprocessed or not
                 cv::util::any any_blob_params = frame.blobParams();
-
                 using ParamType = std::pair<InferenceEngine::TensorDesc, InferenceEngine::ParamMap>;
                 using NV12ParamType = std::pair<ParamType, ParamType>;
 
@@ -740,28 +746,10 @@ inline IE::Blob::Ptr extractRemoteBlob(IECallContext& ctx, std::size_t i,
 #else
                 return IE::make_shared_blob<InferenceEngine::NV12Blob>(y_blob, uv_blob);
 #endif
-}
-
-inline IE::Blob::Ptr extractBlob(IECallContext& ctx,
-                                 std::size_t i,
-                                 cv::gapi::ie::TraitAs hint,
-                                 const std::string& layer_name,
-                                 const cv::util::optional<cv::Rect> &opt_roi,
-                                 cv::MediaFrame* out_keep_alive_frame = nullptr,
-                                 bool* out_is_preprocessed = nullptr) {
-    if (ctx.uu.rctx != nullptr) {
-        return extractRemoteBlob(ctx, i, layer_name, opt_roi,
-                                 out_keep_alive_frame, out_is_preprocessed);
             }
 
-    switch (ctx.inShape(i)) {
-        case cv::GShape::GFRAME: {
-            auto frame = ctx.inFrame(i);
-            if (ctx.uu.preproc_engine_impl) {
-                GAPI_LOG_DEBUG(nullptr, "Try to use preprocessing for decoded frame in local ctx");
-                frame = preprocess_frame_impl(std::move(frame), layer_name, ctx, opt_roi,
-                                              out_keep_alive_frame, out_is_preprocessed);
-            }
+            // NB: If no OV remote context created then use default MediaFrame accessor approach:
+            // it invokes memory copying operation If GPU MediaFrame come
             ctx.views.emplace_back(new cv::MediaFrame::View(frame.access(cv::MediaFrame::Access::R)));
             return wrapIE(*(ctx.views.back()), frame.desc());
         }
@@ -1158,6 +1146,7 @@ static void PostOutputs(InferenceEngine::InferRequest &request,
         ctx->out.post(std::move(output), ctx->eptr);
     }
 
+    ctx->views.clear();
     ctx->releaseKeepAliveFrame(&request);
 }
 

modules/gapi/src/streaming/onevpl/accelerators/accel_policy_cpu.cpp

@@ -178,8 +178,8 @@ VPLCPUAccelerationPolicy::create_surface_pool(size_t pool_size, size_t surface_s
         GAPI_LOG_INFO(nullptr, "Released workspace memory: " << ptr);
         ptr = nullptr;
 #else
+        GAPI_LOG_INFO(nullptr, "Workspace memory to release: " << ptr);
         free(ptr);
-        GAPI_LOG_INFO(nullptr, "Released workspace memory: " << ptr);
         ptr = nullptr;
 #endif
 

modules/gapi/src/streaming/onevpl/accelerators/accel_policy_va_api.cpp

@@ -27,30 +27,16 @@ namespace onevpl {
 VPLVAAPIAccelerationPolicy::VPLVAAPIAccelerationPolicy(device_selector_ptr_t selector) :
     VPLAccelerationPolicy(selector),
     cpu_dispatcher(new VPLCPUAccelerationPolicy(selector)),
-    va_handle(),
-    device_fd(-1) {
+    va_handle() {
 #if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
-    // TODO Move it out in device selector
-    device_fd = open("/dev/dri/renderD128", O_RDWR);
-    if (device_fd < 0) {
-        GAPI_LOG_WARNING(nullptr, "VAAPI device descriptor \"/dev/dri/renderD128\" has not found");
-        throw std::runtime_error("cannot open VAAPI device");
-    }
-    va_handle = vaGetDisplayDRM(device_fd);
-    if (!va_handle) {
-        GAPI_LOG_WARNING(nullptr, "VAAPI device vaGetDisplayDRM failed, error: " << strerror(errno));
-        close(device_fd);
-        throw std::runtime_error("vaGetDisplayDRM failed");
-    }
-    int major_version = 0, minor_version = 0;
-    VAStatus status {};
-    status = vaInitialize(va_handle, &major_version, &minor_version);
-    if (VA_STATUS_SUCCESS != status) {
-        GAPI_LOG_WARNING(nullptr, "Cannot initialize VAAPI device, error: " << vaErrorStr(status));
-        close(device_fd);
-        throw std::runtime_error("vaInitialize failed");
-    }
-    GAPI_LOG_INFO(nullptr, "created");
+    // setup VAAPI device
+    IDeviceSelector::DeviceScoreTable devices = get_device_selector()->select_devices();
+    GAPI_Assert(devices.size() == 1 && "Multiple(or zero) acceleration  VAAPI devices are not unsupported");
+    AccelType accel_type = devices.begin()->second.get_type();
+    GAPI_Assert(accel_type == AccelType::VAAPI &&
+                "Unexpected device AccelType while is waiting AccelType::VAAPI");
+
+    va_handle = reinterpret_cast<VADisplay>(devices.begin()->second.get_ptr());
 #else  // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
     GAPI_Assert(false && "VPLVAAPIAccelerationPolicy unavailable in current configuration");
 #endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
@@ -58,7 +44,6 @@ VPLVAAPIAccelerationPolicy::VPLVAAPIAccelerationPolicy(device_selector_ptr_t sel
 
 VPLVAAPIAccelerationPolicy::~VPLVAAPIAccelerationPolicy() {
     vaTerminate(va_handle);
-    close(device_fd);
     GAPI_LOG_INFO(nullptr, "destroyed");
 }
 

modules/gapi/src/streaming/onevpl/accelerators/accel_policy_va_api.hpp

@@ -50,7 +50,6 @@ private:
     std::unique_ptr<VPLAccelerationPolicy> cpu_dispatcher;
 #ifdef __linux__
     VADisplay va_handle;
-    int device_fd;  // TODO Move it out in device selector
 #endif // __linux__
 };
 } // namespace onevpl

modules/gapi/src/streaming/onevpl/accelerators/dx11_alloc_resource.cpp

@@ -96,6 +96,8 @@ void LockAdapter::unlock_write(mfxMemId mid, mfxFrameData &data) {
 
 SharedLock* LockAdapter::set_adaptee(SharedLock* new_impl) {
     SharedLock* old_impl = impl;
+    GAPI_LOG_DEBUG(nullptr, "this: " << this <<
+                            ", old: " << old_impl << ", new: " << new_impl);
     GAPI_DbgAssert(old_impl == nullptr || new_impl == nullptr && "Must not be previous impl");
     impl = new_impl;
     return old_impl;
@@ -184,6 +186,8 @@ void DX11AllocationItem::on_first_in_impl(mfxFrameData *ptr) {
     D3D11_MAP mapType = D3D11_MAP_READ;
     UINT mapFlags = D3D11_MAP_FLAG_DO_NOT_WAIT;
 
+    GAPI_LOG_DEBUG(nullptr, "texture: " << get_texture_ptr() <<
+                            ", subresorce: " << get_subresource());
     shared_device_context->CopySubresourceRegion(get_staging_texture_ptr(), 0,
                                                  0, 0, 0,
                                                  get_texture_ptr(),
@@ -245,8 +249,8 @@ mfxStatus DX11AllocationItem::release_access(mfxFrameData *ptr) {
 }
 
 mfxStatus DX11AllocationItem::shared_access_acquire_unsafe(mfxFrameData *ptr) {
-    GAPI_LOG_DEBUG(nullptr, "acquire READ lock: " << this);
-    GAPI_LOG_DEBUG(nullptr, "texture: " << get_texture_ptr() <<
+    GAPI_LOG_DEBUG(nullptr, "acquire READ lock: " << this <<
+                            ", texture: " << get_texture_ptr() <<
                             ", sub id: " << get_subresource());
     // shared access requires elastic barrier
     // first-in visited thread uses resource mapping on host memory
@@ -257,6 +261,7 @@ mfxStatus DX11AllocationItem::shared_access_acquire_unsafe(mfxFrameData *ptr) {
 
     if (!(ptr->Y && (ptr->UV || (ptr->U && ptr->V)))) {
         GAPI_LOG_WARNING(nullptr, "No any data obtained: " << this);
+        GAPI_DbgAssert(false && "shared access must provide data");
         return MFX_ERR_LOCK_MEMORY;
     }
     GAPI_LOG_DEBUG(nullptr, "READ access granted: " << this);
@@ -264,8 +269,8 @@ mfxStatus DX11AllocationItem::shared_access_acquire_unsafe(mfxFrameData *ptr) {
 }
 
 mfxStatus DX11AllocationItem::shared_access_release_unsafe(mfxFrameData *ptr) {
-    GAPI_LOG_DEBUG(nullptr, "releasing READ lock: " << this);
-    GAPI_LOG_DEBUG(nullptr, "texture: " << get_texture_ptr() <<
+    GAPI_LOG_DEBUG(nullptr, "releasing READ lock: " << this <<
+                            ", texture: " << get_texture_ptr() <<
                             ", sub id: " << get_subresource());
     // releasing shared access requires elastic barrier
     // last-out thread must make memory unmapping then and only then no more
@@ -278,8 +283,8 @@ mfxStatus DX11AllocationItem::shared_access_release_unsafe(mfxFrameData *ptr) {
 }
 
 mfxStatus DX11AllocationItem::exclusive_access_acquire_unsafe(mfxFrameData *ptr) {
-    GAPI_LOG_DEBUG(nullptr, "acquire WRITE lock: " << this);
-    GAPI_LOG_DEBUG(nullptr, "texture: " << get_texture_ptr() <<
+    GAPI_LOG_DEBUG(nullptr, "acquire WRITE lock: " << this <<
+                            ", texture: " << get_texture_ptr() <<
                             ", sub id: " << get_subresource());
     D3D11_MAP mapType = D3D11_MAP_WRITE;
     UINT mapFlags = D3D11_MAP_FLAG_DO_NOT_WAIT;
@@ -321,8 +326,8 @@ mfxStatus DX11AllocationItem::exclusive_access_acquire_unsafe(mfxFrameData *ptr)
 }
 
 mfxStatus DX11AllocationItem::exclusive_access_release_unsafe(mfxFrameData *ptr) {
-    GAPI_LOG_DEBUG(nullptr, "releasing WRITE lock: " << this);
-    GAPI_LOG_DEBUG(nullptr, "texture: " << get_texture_ptr() <<
+    GAPI_LOG_DEBUG(nullptr, "releasing WRITE lock: " << this <<
+                            ", texture: " << get_texture_ptr() <<
                             ", sub id: " << get_subresource());
 
     get_device_ctx_ptr()->Unmap(get_staging_texture_ptr(), 0);

modules/gapi/src/streaming/onevpl/accelerators/surface/cpu_frame_adapter.cpp

@@ -64,7 +64,7 @@ MediaFrame::View VPLMediaFrameCPUAdapter::access(MediaFrame::Access) {
 }
 
 cv::util::any VPLMediaFrameCPUAdapter::blobParams() const {
-    GAPI_Assert("VPLMediaFrameCPUAdapter::blobParams() is not implemented");
+    throw std::runtime_error("VPLMediaFrameCPUAdapter::blobParams() is not implemented");
     return {};
 }
 

modules/gapi/src/streaming/onevpl/cfg_param_device_selector.cpp

@@ -30,6 +30,16 @@
 #endif // HAVE_D3D11
 #endif // HAVE_DIRECTX
 
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#include "va/va.h"
+#include "va/va_drm.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // __linux__
+
 #include <codecvt>
 #include "opencv2/core/directx.hpp"
 
@@ -37,6 +47,23 @@ namespace cv {
 namespace gapi {
 namespace wip {
 namespace onevpl {
+#ifdef __linux__
+struct Aux {
+    ~Aux() {
+        for (int fd : fds) {
+            close(fd);
+        }
+    }
+
+    void remember_fd(int fd) {
+        fds.insert(fd);
+    }
+private:
+    std::set<int> fds;
+};
+#else
+struct Aux {};
+#endif
 
 static std::vector<CfgParam> insertCfgparam(std::vector<CfgParam> &&param_array, AccelType type) {
     switch (type) {
@@ -153,7 +180,78 @@ CfgParamDeviceSelector::CfgParamDeviceSelector(const CfgParams& cfg_params) :
             break;
         }
         case MFX_IMPL_VIA_VAAPI : {
-            GAPI_LOG_WARNING(nullptr, "TODO MFX_IMPL_VIA_VAAPI falls back to CPU case")
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+            static const char *predefined_vaapi_devices_list[] {"/dev/dri/renderD128",
+                                                                "/dev/dri/renderD129",
+                                                                "/dev/dri/card0",
+                                                                "/dev/dri/card1",
+                                                                nullptr};
+            std::stringstream ss;
+            int device_fd = -1;
+            VADisplay va_handle;va_handle = nullptr;
+            for (const char **device_path = predefined_vaapi_devices_list;
+                *device_path != nullptr; device_path++) {
+                device_fd = open(*device_path, O_RDWR);
+                if (device_fd < 0) {
+                    std::string info("Cannot open GPU file: \"");
+                    info = info + *device_path + "\", error: " + strerror(errno);
+                    GAPI_LOG_DEBUG(nullptr, info);
+                    ss << info << std::endl;
+                    continue;
+                }
+                va_handle = vaGetDisplayDRM(device_fd);
+                if (!va_handle) {
+                    close(device_fd);
+
+                    std::string info("VAAPI device vaGetDisplayDRM failed, error: ");
+                    info += strerror(errno);
+                    GAPI_LOG_DEBUG(nullptr, info);
+                    ss << info << std::endl;
+                    continue;
+                }
+                int major_version = 0, minor_version = 0;
+                VAStatus status {};
+                status = vaInitialize(va_handle, &major_version, &minor_version);
+                if (VA_STATUS_SUCCESS != status) {
+                    close(device_fd);
+                    va_handle = nullptr;
+
+                    std::string info("Cannot initialize VAAPI device, error: ");
+                    info += vaErrorStr(status);
+                    GAPI_LOG_DEBUG(nullptr, info);
+                    ss << info << std::endl;
+                    continue;
+                }
+                GAPI_LOG_INFO(nullptr, "VAAPI created for device: " << *device_path);
+                break;
+            }
+
+            // check device creation
+            if (!va_handle) {
+                GAPI_LOG_WARNING(nullptr, "Cannot create VAAPI device. Log:\n" << ss.str());
+                throw std::logic_error(std::string("Cannot create device for \"") +
+                                   CfgParam::acceleration_mode_name() +
+                                   ": MFX_IMPL_VIA_VAAPI\"");
+            }
+
+            // Unfortunately VAAPI doesn't provide API for extracting initial FD value from VADisplay, which
+            // value is stored as VADisplay fields, by the way. But, because we here are only one creator
+            // of VAAPI device then we will need make cleanup for all allocated resources by ourselfs
+            //and FD is definitely must be utilized. So, let's use complementary struct `Aux` which
+            // represent some kind of 'platform specific data' and which will store opened FD for
+            // future utilization
+            platform_specific_data.reset (new Aux);
+            platform_specific_data->remember_fd(device_fd);
+
+            suggested_device = IDeviceSelector::create<Device>(va_handle, "GPU", AccelType::VAAPI);
+            suggested_context = IDeviceSelector::create<Context>(nullptr, AccelType::VAAPI);
+#else  // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+            GAPI_Assert(false && "VPLVAAPIAccelerationPolicy unavailable in current linux configuration");
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#else // #ifdef __linux__
+            GAPI_Assert(false && "MFX_IMPL_VIA_VAAPI is supported on linux only")
+#endif // #ifdef __linux__
             break;
         }
         case MFX_ACCEL_MODE_NA: {
@@ -234,6 +332,19 @@ CfgParamDeviceSelector::CfgParamDeviceSelector(Device::Ptr device_ptr,
 #endif // #if defined(HAVE_DIRECTX) && defined(HAVE_D3D11)
             break;
         }
+        case MFX_IMPL_VIA_VAAPI : {
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+            suggested_device = IDeviceSelector::create<Device>(device_ptr, device_id, AccelType::VAAPI);
+            suggested_context = IDeviceSelector::create<Context>(nullptr, AccelType::VAAPI);
+#else  // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+            GAPI_Assert(false && "VPLVAAPIAccelerationPolicy unavailable in current linux configuration");
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#else // #ifdef __linux__
+            GAPI_Assert(false && "MFX_IMPL_VIA_VAAPI is supported on linux only")
+#endif // #ifdef __linux__
+            break;
+        }
         case MFX_ACCEL_MODE_NA: {
             GAPI_LOG_WARNING(nullptr, "Incompatible \"" <<  CfgParam::acceleration_mode_name() <<
                                       ": MFX_ACCEL_MODE_NA\" with "
@@ -284,7 +395,13 @@ CfgParamDeviceSelector::CfgParamDeviceSelector(const Device &device,
 #endif // defined(HAVE_DIRECTX) && defined(HAVE_D3D11)
         }
         case AccelType::VAAPI:
-            GAPI_LOG_WARNING(nullptr, "TODO MFX_IMPL_VIA_VAAPI falls back to CPU case")
+#ifdef __linux__
+#if !defined(HAVE_VA) || !defined(HAVE_VA_INTEL)
+            GAPI_Assert(false && "VPLVAAPIAccelerationPolicy unavailable in current linux configuration");
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#else // #ifdef __linux__
+            GAPI_Assert(false && "MFX_IMPL_VIA_VAAPI is supported on linux only")
+#endif // #ifdef __linux__
             break;
         case AccelType::HOST:
             break;
@@ -332,6 +449,15 @@ CfgParamDeviceSelector::~CfgParamDeviceSelector() {
 #endif // defined(HAVE_DIRECTX) && defined(HAVE_D3D11)
             break;
         }
+        case AccelType::VAAPI: {
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+            VADisplay va_handle = reinterpret_cast<VADisplay>(suggested_device.get_ptr());
+            vaTerminate(va_handle);
+            platform_specific_data.reset();
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // #ifdef __linux__
+        }
         default:
             break;
     }

modules/gapi/src/streaming/onevpl/cfg_param_device_selector.hpp

@@ -20,6 +20,7 @@ namespace gapi {
 namespace wip {
 namespace onevpl {
 
+class Aux;
 struct GAPI_EXPORTS CfgParamDeviceSelector final: public IDeviceSelector {
     CfgParamDeviceSelector(const CfgParams& params = {});
     CfgParamDeviceSelector(Device::Ptr device_ptr,
@@ -37,6 +38,7 @@ struct GAPI_EXPORTS CfgParamDeviceSelector final: public IDeviceSelector {
 private:
     Device suggested_device;
     Context suggested_context;
+    std::unique_ptr<Aux> platform_specific_data;
 };
 } // namespace onevpl
 } // namespace wip

modules/gapi/src/streaming/onevpl/device_selector_interface.cpp

@@ -119,6 +119,19 @@ Context create_dx11_context(Context::Ptr ctx_ptr) {
                                                                 AccelType::DX11);
 }
 
+Device create_vaapi_device(Device::Ptr device_ptr,
+                           const std::string& device_name,
+                           int file_description) {
+    return detail::DeviceContextCreator::create_entity<Device>(device_ptr,
+                                                               device_name,
+                                                               AccelType::VAAPI);
+}
+
+Context create_vaapi_context(Context::Ptr ctx_ptr) {
+    return detail::DeviceContextCreator::create_entity<Context>(ctx_ptr,
+                                                                AccelType::VAAPI);
+}
+
 } // namespace onevpl
 } // namespace wip
 } // namespace gapi

modules/gapi/src/streaming/onevpl/source_priv.cpp

@@ -321,11 +321,16 @@ std::unique_ptr<VPLAccelerationPolicy> GSource::Priv::initializeHWAccel(std::sha
 
 const std::vector<CfgParam>& GSource::Priv::getDefaultCfgParams()
 {
+#ifdef __WIN32__
     static const std::vector<CfgParam> def_params =
         get_params_from_string<CfgParam>(
                     "mfxImplDescription.Impl: MFX_IMPL_TYPE_HARDWARE\n"
                     "mfxImplDescription.AccelerationMode: MFX_ACCEL_MODE_VIA_D3D11\n");
-
+#else
+    static const std::vector<CfgParam> def_params =
+        get_params_from_string<CfgParam>(
+                    "mfxImplDescription.Impl: MFX_IMPL_TYPE_HARDWARE\n");
+#endif
     return def_params;
 }
 

modules/gapi/test/streaming/gapi_streaming_vpl_device_selector.cpp

@@ -29,6 +29,16 @@
 #endif // HAVE_D3D11
 #endif // HAVE_DIRECTX
 
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#include "va/va.h"
+#include "va/va_drm.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // __linux__
+
 #ifdef HAVE_ONEVPL
 #include "streaming/onevpl/onevpl_export.hpp"
 #include "streaming/onevpl/cfg_param_device_selector.hpp"
@@ -208,6 +218,131 @@ TEST(OneVPL_Source_Device_Selector_CfgParam, DX11DeviceFromCfgParamWithDX11Disab
 #endif // HAVE_D3D11
 #endif // HAVE_DIRECTX
 
+#ifdef __linux__
+#if defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+TEST(OneVPL_Source_Device_Selector_CfgParam, DefaultDeviceWithEmptyCfgParam_VAAPI_ENABLED)
+{
+    using namespace cv::gapi::wip::onevpl;
+    std::vector<CfgParam> empty_params;
+    CfgParamDeviceSelector selector(empty_params);
+    IDeviceSelector::DeviceScoreTable devs = selector.select_devices();
+    EXPECT_TRUE(devs.size() == 1);
+    test_host_dev_eq(*devs.begin(), IDeviceSelector::Score::MaxActivePriority);
+
+    IDeviceSelector::DeviceContexts ctxs = selector.select_context();
+    EXPECT_TRUE(ctxs.size() == 1);
+    test_host_ctx_eq(*ctxs.begin());
+}
+
+TEST(OneVPL_Source_Device_Selector_CfgParam, DefaultDeviceWithVAAPIAccelCfgParam_VAAPI_ENABLED)
+{
+    using namespace cv::gapi::wip::onevpl;
+    std::vector<CfgParam> cfg_params_w_vaapi;
+    cfg_params_w_vaapi.push_back(CfgParam::create_acceleration_mode(MFX_ACCEL_MODE_VIA_VAAPI));
+    std::unique_ptr<CfgParamDeviceSelector> selector_ptr;
+    EXPECT_NO_THROW(selector_ptr.reset(new CfgParamDeviceSelector(cfg_params_w_vaapi)));
+    IDeviceSelector::DeviceScoreTable devs = selector_ptr->select_devices();
+
+    EXPECT_TRUE(devs.size() == 1);
+    test_dev_eq(*devs.begin(), IDeviceSelector::Score::MaxActivePriority,
+                AccelType::VAAPI,
+                std::get<1>(*devs.begin()).get_ptr() /* compare just type */);
+
+    IDeviceSelector::DeviceContexts ctxs = selector_ptr->select_context();
+    EXPECT_TRUE(ctxs.size() == 1);
+    EXPECT_FALSE(ctxs.begin()->get_ptr());
+}
+
+TEST(OneVPL_Source_Device_Selector_CfgParam, NULLDeviceWithVAAPIAccelCfgParam_VAAPI_ENABLED)
+{
+    using namespace cv::gapi::wip::onevpl;
+    std::vector<CfgParam> cfg_params_w_vaapi;
+    cfg_params_w_vaapi.push_back(CfgParam::create_acceleration_mode(MFX_ACCEL_MODE_VIA_VAAPI));
+    Device::Ptr empty_device_ptr = nullptr;
+    Context::Ptr empty_ctx_ptr = nullptr;
+    EXPECT_THROW(CfgParamDeviceSelector sel(empty_device_ptr, "GPU",
+                                            empty_ctx_ptr,
+                                            cfg_params_w_vaapi),
+                 std::logic_error); // empty_device_ptr must be invalid
+}
+
+
+TEST(OneVPL_Source_Device_Selector_CfgParam, ExternalDeviceWithVAAPIAccelCfgParam_VAAPI_ENABLED)
+{
+    using namespace cv::gapi::wip::onevpl;
+    VADisplay va_handle = nullptr;
+    struct FileDescriptorRAII {
+        FileDescriptorRAII() :fd (-1) {}
+        ~FileDescriptorRAII() { reset(-1); }
+        void reset(int d) {
+            if (fd != -1) {
+                close(fd);
+            }
+            fd = d;
+        }
+        operator int() { return fd; }
+    private:
+        FileDescriptorRAII(FileDescriptorRAII& src) = delete;
+        FileDescriptorRAII& operator=(FileDescriptorRAII& src) = delete;
+        FileDescriptorRAII(FileDescriptorRAII&& src) = delete;
+        FileDescriptorRAII& operator=(FileDescriptorRAII&& src) = delete;
+        int fd = -1;
+    };
+    static const char *predefined_vaapi_devices_list[] {"/dev/dri/renderD128",
+                                                        "/dev/dri/renderD129",
+                                                        "/dev/dri/card0",
+                                                        "/dev/dri/card1",
+                                                        nullptr};
+
+    FileDescriptorRAII device_fd;
+    for (const char **device_path = predefined_vaapi_devices_list;
+        *device_path != nullptr; device_path++) {
+        device_fd.reset(open(*device_path, O_RDWR));
+        if (device_fd < 0) {
+            continue;
+        }
+        va_handle = vaGetDisplayDRM(device_fd);
+        if (!va_handle) {
+            continue;
+        }
+        int major_version = 0, minor_version = 0;
+        VAStatus status {};
+        status = vaInitialize(va_handle, &major_version, &minor_version);
+        if (VA_STATUS_SUCCESS != status) {
+            close(device_fd);
+            va_handle = nullptr;
+            continue;
+        }
+        break;
+    }
+    EXPECT_TRUE(device_fd != -1);
+    EXPECT_TRUE(va_handle);
+    auto device = cv::util::make_optional(
+                            cv::gapi::wip::onevpl::create_vaapi_device(reinterpret_cast<void*>(va_handle),
+                                                                       "GPU", device_fd));
+    auto device_context = cv::util::make_optional(
+                            cv::gapi::wip::onevpl::create_vaapi_context(nullptr));
+
+    std::unique_ptr<CfgParamDeviceSelector> selector_ptr;
+    std::vector<CfgParam> cfg_params_w_vaapi;
+    cfg_params_w_vaapi.push_back(CfgParam::create_acceleration_mode(MFX_ACCEL_MODE_VIA_VAAPI));
+    EXPECT_NO_THROW(selector_ptr.reset(new CfgParamDeviceSelector(device.value(),
+                                                                  device_context.value(),
+                                                                  cfg_params_w_vaapi)));
+    IDeviceSelector::DeviceScoreTable devs = selector_ptr->select_devices();
+
+    EXPECT_TRUE(devs.size() == 1);
+    test_dev_eq(*devs.begin(), IDeviceSelector::Score::MaxActivePriority,
+                AccelType::VAAPI, device.value().get_ptr());
+
+    IDeviceSelector::DeviceContexts ctxs = selector_ptr->select_context();
+    EXPECT_TRUE(ctxs.size() == 1);
+    EXPECT_EQ(reinterpret_cast<void*>(ctxs.begin()->get_ptr()),
+              device_context.value().get_ptr());
+}
+#endif // defined(HAVE_VA) || defined(HAVE_VA_INTEL)
+#endif // #ifdef __linux__
+
 TEST(OneVPL_Source_Device_Selector_CfgParam, UnknownPtrDeviceFromCfgParam)
 {
     using namespace cv::gapi::wip::onevpl;