rpicamera: avoid using explicit libcamera namespace

internal/rpicamera/exe/camera.cpp

@@ -19,11 +19,14 @@
 using libcamera::CameraManager;
 using libcamera::CameraConfiguration;
 using libcamera::Camera;
+using libcamera::ColorSpace;
 using libcamera::ControlList;
 using libcamera::FrameBufferAllocator;
 using libcamera::FrameBuffer;
+using libcamera::PixelFormat;
 using libcamera::Rectangle;
 using libcamera::Request;
+using libcamera::Size;
 using libcamera::Span;
 using libcamera::Stream;
 using libcamera::StreamRoles;
@@ -48,8 +51,8 @@ const char *camera_get_error() {
 }
 
 // https://github.com/raspberrypi/libcamera-apps/blob/dd97618a25523c2c4aa58f87af5f23e49aa6069c/core/libcamera_app.cpp#L42
-static libcamera::PixelFormat mode_to_pixel_format(sensor_mode_t *mode) {
-    static std::vector<std::pair<std::pair<int, bool>, libcamera::PixelFormat>> table = {
+static PixelFormat mode_to_pixel_format(sensor_mode_t *mode) {
+    static std::vector<std::pair<std::pair<int, bool>, PixelFormat>> table = {
         { {8, false}, formats::SBGGR8 },
         { {8, true}, formats::SBGGR8 },
         { {10, false}, formats::SBGGR10 },
@@ -77,8 +80,8 @@ struct CameraPriv {
     std::vector<std::unique_ptr<Request>> requests;
 };
 
-static int get_v4l2_colorspace(std::optional<libcamera::ColorSpace> const &cs) {
-    if (cs == libcamera::ColorSpace::Rec709) {
+static int get_v4l2_colorspace(std::optional<ColorSpace> const &cs) {
+    if (cs == ColorSpace::Rec709) {
         return V4L2_COLORSPACE_REC709;
     }
     return V4L2_COLORSPACE_SMPTE170M;
@@ -97,7 +100,7 @@ bool camera_create(parameters_t *params, camera_frame_cb frame_cb, camera_t **ca
         return false;
     }
 
-    std::vector<std::shared_ptr<libcamera::Camera>> cameras = camp->camera_manager->cameras();
+    std::vector<std::shared_ptr<Camera>> cameras = camp->camera_manager->cameras();
     auto rem = std::remove_if(cameras.begin(), cameras.end(),
         [](auto &cam) { return cam->id().find("/usb") != std::string::npos; });
     cameras.erase(rem, cameras.end());
@@ -135,14 +138,14 @@ bool camera_create(parameters_t *params, camera_frame_cb frame_cb, camera_t **ca
     video_stream_conf.size.width = params->width;
     video_stream_conf.size.height = params->height;
     if (params->width >= 1280 || params->height >= 720) {
-        video_stream_conf.colorSpace = libcamera::ColorSpace::Rec709;
+        video_stream_conf.colorSpace = ColorSpace::Rec709;
     } else {
-        video_stream_conf.colorSpace = libcamera::ColorSpace::Smpte170m;
+        video_stream_conf.colorSpace = ColorSpace::Smpte170m;
     }
 
     if (params->mode != NULL) {
         StreamConfiguration &raw_stream_conf = conf->at(1);
-        raw_stream_conf.size = libcamera::Size(params->mode->width, params->mode->height);
+        raw_stream_conf.size = Size(params->mode->width, params->mode->height);
         raw_stream_conf.pixelFormat = mode_to_pixel_format(params->mode);
         raw_stream_conf.bufferCount = video_stream_conf.bufferCount;
     }