codec2: move AVAFactory code from external/v4l2_codec2 to vendor/google_arc

C2AVAFactory is strongly ARC-related code which depends on some ARC libraries,
it should not be placed under external/v4l2_codec2. Moreover,
external/v4l2_codec2 does not have pi-arc-dev branch so we could not handle the
library difference between pi-dev and pi-arc-dev.

We move C2AVAFactory to vendor/google_arc and provide the united API for codec2
component's usage. By doing so we could keep other codec2 codes unchanged and
are able to handle both pi-dev and pi-arc-dev.

Note that this change should be uploaded after the vendor/google_arc change is
merged to pi-arc-dev.

Bug: 110177751
Test: build cheets image on pi-arc-dev
Test: vendor/google/build/build_test.bash on pi-dev

Change-Id: Ib3fd6a55bd587be9340232903438e314e4f55c3f

Android.bp

-cc_library_shared {
-    name: "libv4l2_codec2_arcva_factory",
-    vendor_available: true,
-    product_variables: {
-        arc: {
-            srcs: ["C2ArcVideoAcceleratorFactory.cpp"],
-
-            shared_libs: [
-                "libarcbridge",
-                "libarcbridgeservice",
-                "libarcvideobridge",
-                "libbinder",
-                "libchrome",
-                "liblog",
-                "libmojo",
-                "libutils",
-            ],
-
-            // -Wno-unused-parameter is needed for libchrome/base codes
-            cflags: [
-                "-Wall",
-                "-Werror",
-                "-Wno-unused-parameter",
-                "-std=c++14",
-            ],
-        },
-    },
-    clang: true,
-    export_include_dirs: [
-        "include",
-    ],
-}

Android.mk

@@ -56,7 +56,7 @@ LOCAL_SRC_FILES := $(filter-out C2VDAAdaptor.cpp, $(LOCAL_SRC_FILES))
 LOCAL_SHARED_LIBRARIES += libarcbridge \
                           libarcbridgeservice \
                           libmojo \
-                          libv4l2_codec2_arcva_factory \
+                          libcodec2_arcva_factory \
 
 endif # ifneq (,$(findstring cheets_,$(TARGET_PRODUCT)))
 

C2ArcVideoAcceleratorFactory.cpp

-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// #define LOG_NDEBUG 0
-#define LOG_TAG "C2ArcVideoAcceleratorFactory"
-
-#include <C2ArcVideoAcceleratorFactory.h>
-
-#include <base/bind.h>
-#include <binder/IServiceManager.h>
-#include <mojo/edk/embedder/embedder.h>
-#include <mojo/public/cpp/bindings/interface_request.h>
-#include <mojo/public/cpp/system/handle.h>
-#include <utils/Log.h>
-
-namespace android {
-
-ANDROID_SINGLETON_STATIC_INSTANCE(C2ArcVideoAcceleratorFactory)
-
-bool C2ArcVideoAcceleratorFactory::createVideoDecodeAccelerator(
-        ::arc::mojom::VideoDecodeAcceleratorRequest request) {
-    if (!mRemoteFactory) {
-        ALOGE("Factory is not ready");
-        return false;
-    }
-    mRemoteFactory->CreateDecodeAccelerator(std::move(request));
-    return true;
-}
-
-bool C2ArcVideoAcceleratorFactory::createVideoEncodeAccelerator(
-        ::arc::mojom::VideoEncodeAcceleratorRequest request) {
-    if (!mRemoteFactory) {
-        ALOGE("Factory is not ready");
-        return false;
-    }
-    mRemoteFactory->CreateEncodeAccelerator(std::move(request));
-    return true;
-}
-
-bool C2ArcVideoAcceleratorFactory::createVideoProtectedBufferAllocator(
-        ::arc::mojom::VideoProtectedBufferAllocatorRequest request) {
-    if (!mRemoteFactory) {
-        ALOGE("Factory is not ready");
-        return false;
-    }
-    mRemoteFactory->CreateProtectedBufferAllocator(std::move(request));
-    return true;
-}
-
-int32_t C2ArcVideoAcceleratorFactory::hostVersion() const {
-    return mHostVersion;
-}
-
-C2ArcVideoAcceleratorFactory::C2ArcVideoAcceleratorFactory() : mHostVersion(0) {
-    sp<IBinder> binder =
-            defaultServiceManager()->getService(String16("android.os.IArcVideoBridge"));
-    if (binder == nullptr) {
-        ALOGE("Failed to find IArcVideoBridge service");
-        return;
-    }
-    mArcVideoBridge = interface_cast<IArcVideoBridge>(binder);
-    mHostVersion = mArcVideoBridge->hostVersion();
-    if (mHostVersion < 4) {
-        ALOGW("HostVersion(%d) is outdated", mHostVersion);
-        return;
-    }
-
-    ALOGV("HostVersion: %d", mHostVersion);
-
-    ::arc::MojoBootstrapResult bootstrapResult =
-            mArcVideoBridge->bootstrapVideoAcceleratorFactory();
-    if (!bootstrapResult.is_valid()) {
-        ALOGE("bootstrapVideoAcceleratorFactory returns invalid result");
-        return;
-    }
-    mojo::edk::ScopedPlatformHandle handle(
-            mojo::edk::PlatformHandle(bootstrapResult.releaseFd().release()));
-    ALOGV("SetParentPipeHandle(fd=%d)", handle.get().handle);
-    mojo::edk::SetParentPipeHandle(std::move(handle));
-    mojo::ScopedMessagePipeHandle server_pipe =
-            mojo::edk::CreateChildMessagePipe(bootstrapResult.releaseToken());
-    mRemoteFactory.Bind(mojo::InterfacePtrInfo<::arc::mojom::VideoAcceleratorFactory>(
-            std::move(server_pipe), 7u));
-}
-
-}  // namespace android

C2VDAAdaptorProxy.cpp

@@ -64,7 +64,7 @@ bool C2VDAAdaptorProxy::establishChannel() {
 }
 
 void C2VDAAdaptorProxy::establishChannelOnMojoThread(std::shared_ptr<::arc::Future<bool>> future) {
-    C2ArcVideoAcceleratorFactory& factory = ::android::C2ArcVideoAcceleratorFactory::getInstance();
+    auto& factory = ::android::GetC2ArcVideoAcceleratorFactory();
 
     if (!factory.createVideoDecodeAccelerator(mojo::MakeRequest(&mVDAPtr))) {
         future->set(false);

include/C2ArcVideoAcceleratorFactory.h

-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ANDROID_C2_ARC_VIDEO_ACCELERATOR_FACTORY_H
-#define ANDROID_C2_ARC_VIDEO_ACCELERATOR_FACTORY_H
-
-#include <media/arcvideobridge/IArcVideoBridge.h>
-#include <utils/Singleton.h>
-
-#include <components/arc/common/video.mojom.h>
-#include <components/arc/common/video_decode_accelerator.mojom.h>
-#include <components/arc/common/video_encode_accelerator.mojom.h>
-
-namespace android {
-// Helper class to create message pipe to the ArcVideoAccelerator.
-// This class should only be used in the Mojo thread.
-class C2ArcVideoAcceleratorFactory : public Singleton<C2ArcVideoAcceleratorFactory> {
-public:
-    bool createVideoDecodeAccelerator(::arc::mojom::VideoDecodeAcceleratorRequest request);
-    bool createVideoEncodeAccelerator(::arc::mojom::VideoEncodeAcceleratorRequest request);
-    bool createVideoProtectedBufferAllocator(
-            ::arc::mojom::VideoProtectedBufferAllocatorRequest request);
-    int32_t hostVersion() const;
-
-private:
-    C2ArcVideoAcceleratorFactory();
-
-    uint32_t mHostVersion;
-    sp<IArcVideoBridge> mArcVideoBridge;
-    ::arc::mojom::VideoAcceleratorFactoryPtr mRemoteFactory;
-
-    friend class Singleton<C2ArcVideoAcceleratorFactory>;
-};
-}  // namespace android
-
-#endif  // ANDROID_C2_ARC_VIDEO_ACCELERATOR_FACTORY_H