android-16.0

main.cpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2022 Michael Goffioul <michael.goffioul@gmail.com>
+ * Copyright (C) 2025 KonstaKANG
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.media.c2-service-ffmpeg"
+
+#include "C2FFMPEGComponentStore.h"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <codec2/aidl/ComponentStore.h>
+#include <minijail.h>
+
+using namespace ::aidl::android::hardware::media::c2;
+
+// This is the absolute on-device path of the prebuild_etc module
+// "android.hardware.media.c2-ffmpeg.policy" in Android.bp.
+static constexpr char kBaseSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/"
+        "android.hardware.media.c2-ffmpeg.policy";
+
+// Additional seccomp permissions can be added in this file.
+// This file does not exist by default.
+static constexpr char kExtSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/"
+        "android.hardware.media.c2-ffmpeg-extended.policy";
+
+int main() {
+    LOG(DEBUG) << "android.hardware.media.c2-service-ffmpeg starting...";
+
+    // Set up minijail to limit system calls.
+    signal(SIGPIPE, SIG_IGN);
+    android::SetUpMinijail(kBaseSeccompPolicyPath, kExtSeccompPolicyPath);
+
+    // Extra threads may be needed to handle a stacked IPC sequence that
+    // contains alternating binder and hwbinder calls. (See b/35283480.)
+    ABinderProcess_setThreadPoolMaxThreadCount(8);
+    ABinderProcess_startThreadPool();
+
+    // Create IComponentStore service.
+    std::shared_ptr<IComponentStore> store = ndk::SharedRefBase::make<utils::ComponentStore>(
+            std::make_shared<android::C2FFMPEGComponentStore>());
+
+    const std::string instance = std::string() + IComponentStore::descriptor + "/ffmpeg";
+    binder_status_t status = AServiceManager_addService(store->asBinder().get(), instance.c_str());
+    CHECK(status == STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}