Merge pull request #1 from livekit/feat/poc-ios

Feat: iOS POC

.gitignore

@@ -4,4 +4,5 @@ cmake-build-debug
 .cargo/
 test/
 libwebrtc/
+libwebrtc_android/
 CMakeLists.txt

Cargo.toml

@@ -16,5 +16,5 @@ glob = "0.3.0"
 regex = "1.0"
 
 [lib]
-crate-type = ["cdylib"]
+crate-type = ["staticlib", "cdylib"]
 bench = false

build.rs

@@ -5,7 +5,9 @@ use std::io::Write;
 use std::path;
 
 fn main() {
-    let target_os = "android";
+    // TODO Download precompiled binaries of WebRTC for the target_os
+
+    let target_os = "ios";
     //let target_arch = "arm64";
 
     let libwebrtc_dir = path::PathBuf::from("libwebrtc");
@@ -16,12 +18,15 @@ fn main() {
         libwebrtc_dir.join("include/"),
         libwebrtc_dir.join("include/third_party/abseil-cpp/"),
         libwebrtc_dir.join("include/third_party/libc++/"),
+
+        // For mac & ios
+        libwebrtc_dir.join("include/sdk/objc"),
+        libwebrtc_dir.join("include/sdk/objc/base"),
     ];
 
     let mut builder = cxx_build::bridges(&["src/lib.rs"]);
     builder.flag("-std=c++17");
     builder.file("src/peer_connection_factory.cpp");
-    builder.file("src/jni_onload.cc");
 
     for include in includes {
         builder.include(include);
@@ -31,7 +36,6 @@ fn main() {
         "cargo:rustc-link-search=native={}",
         libwebrtc_dir.canonicalize().unwrap().to_str().unwrap()
     );
-    println!("cargo:rustc-link-lib=static=webrtc");
 
     match target_os {
         "macos" => {
@@ -51,7 +55,13 @@ fn main() {
                 .define("WEBRTC_MAC", None);
         }
         "ios" => {
-            // TODO(theomonnom)
+
+            builder
+                .file("src/objc_test.mm")
+                .define("WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT", None)
+                .define("WEBRTC_MAC", None)
+                .define("WEBRTC_POSIX", None)
+                .define("WEBRTC_IOS", None);
         }
         "android" => {
             let ndk_env = env::var("ANDROID_NDK_HOME").expect(
@@ -102,6 +112,7 @@ fn main() {
             // JNI Version Script & Keep JNI symbols
             let vs_path = path::PathBuf::from(env::var("OUT_DIR").unwrap()).join("webrtc_jni.map");
             let mut vs_file = fs::File::create(&vs_path).unwrap();
+            builder.file("src/jni_onload.cc");
             println!("cargo:rustc-link-arg=-Wl,--undefined=JNI_OnLoad");
 
             write!(vs_file, "JNI_WEBRTC {{\n\tglobal: ").unwrap();

include/objc_test.h

@@ -0,0 +1,5 @@
+//
+// Created by Théo Monnom on 16/08/2022.
+//
+
+void LKPrintDevices();

include/peer_connection_factory.h

@@ -7,7 +7,6 @@
 #define PEER_CONNECTION_FACTORY_H
 
 #include "api/peer_connection_interface.h"
-#include "sdk/android/src/jni/jni_helpers.h"
 
 namespace lk {
 

src/objc_test.mm

@@ -0,0 +1,12 @@
+#import "sdk/objc/base/RTCVideoCapturer.h"
+#import "sdk/objc/components/capturer/RTCCameraVideoCapturer.h"
+
+void LKPrintDevices() {
+    NSArray<AVCaptureDevice*>* devices = [RTCCameraVideoCapturer captureDevices];
+    [devices enumerateObjectsUsingBlock:^(AVCaptureDevice* device, NSUInteger i,
+                                          BOOL* stop) {
+        NSLog(@"%@", device.localizedName);
+        NSLog(@"%@", device.uniqueID);
+        NSLog(@"%@", device.modelID);
+    }];
+}

src/peer_connection_factory.cpp

@@ -4,6 +4,7 @@
 
 #include "peer_connection_factory.h"
 #include <iostream>
+#include "objc_test.h"
 
 namespace lk{
 
@@ -33,6 +34,8 @@ namespace lk{
     }
 
     std::unique_ptr<PeerConnectionFactory> CreatePeerConnectionFactory() {
+        LKPrintDevices(); // Just a tess
+
         return std::make_unique<PeerConnectionFactory>();
     }