Implement linux version to get devices

Author: RHeckerIntel

openvino_bindings/src/bindings.cc

@@ -514,16 +514,6 @@ StatusOrInputDevices* getAvailableCameraDevices() {
     return new StatusOrInputDevices{OkStatus, "", devices, (int)cameras.size()};
 }
 
-StatusOrString* pdfExtractText(const char* pdf_path) {
-    try {
-        auto output = sentence_extractor::extract_text_from_pdf(pdf_path);
-        return new StatusOrString{OkStatus, "", strdup(output.c_str())};
-    } catch (...) {
-        auto except = handle_exceptions();
-        return new StatusOrString{except->status, except->message};
-    }
-}
-
 Status* handle_exceptions() {
     try {
         throw;

openvino_bindings/src/utils/BUILD

@@ -23,12 +23,11 @@ cc_library(
     deps = [
          ":errors",
     ],
-    linkopts = [
-        "mfplat.lib",
-        "mf.lib",
-        "mfuuid.lib",
-        "ole32.lib",
-    ],
+    linkopts = select({
+        "@platforms//os:windows": ["mfplat.lib", "mf.lib", "mfuuid.lib", "ole32.lib"],
+        "@platforms//os:linux": [],  # No extra libraries needed for V4L2
+        "@platforms//os:macos": ["-framework AVFoundation", "-framework Foundation"],
+    }),
 )
 
 cc_library(

openvino_bindings/src/utils/input_devices.h

@@ -74,8 +74,29 @@ std::map<size_t, std::string> list_camera_devices() {
     return {};
 }
 #elif __linux__
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/videodev2.h>
+
 std::map<size_t, std::string> list_camera_devices() {
-    return {};
+    std::map<size_t, std::string> cameras = {};
+
+    for (int i = 0; i < 10; ++i) {  // Check up to 10 devices
+        std::string devName = "/dev/video" + std::to_string(i);
+        std::cout << devName << std::endl;
+        int fd = open(devName.c_str(), O_RDONLY);
+        if (fd == -1) continue;  // Skip if device doesn't exist
+
+        struct v4l2_capability cap;
+        if (ioctl(fd, VIDIOC_QUERYCAP, &cap) == 0) {
+            if (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) {
+                cameras.insert({i, std::string(reinterpret_cast<char*>(cap.card))});
+            }
+        }
+        close(fd);
+    }
+    return cameras;
 }
 #else
 std::map<size_t, std::string> list_camera_devices() {