services/mediacodec/main_codecservice.cpp

/*
**
** Copyright 2016, The Android Open Source Project
**
** 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.
*/

#include <fcntl.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <binder/IPCThreadState.h>
#include <binder/ProcessState.h>
#include <binder/IServiceManager.h>
#include <cutils/properties.h>

#include <string>

#include <android-base/logging.h>

// from LOCAL_C_INCLUDES
#include "MediaCodecService.h"
#include "minijail.h"

#include <android/hardware/media/omx/1.0/IOmx.h>

using namespace android;

// Must match location in Android.mk.
static const char kSeccompPolicyPath[] = "/system/etc/seccomp_policy/mediacodec-seccomp.policy";

int main(int argc __unused, char** argv)
{
    LOG(INFO) << "mediacodecservice starting";
    signal(SIGPIPE, SIG_IGN);
    SetUpMinijail(kSeccompPolicyPath, std::string());

    strcpy(argv[0], "media.codec");
    sp<ProcessState> proc(ProcessState::self());
    sp<IServiceManager> sm = defaultServiceManager();
    MediaCodecService::instantiate();

    // Treble
    bool useTrebleOmx = bool(property_get_bool("debug.treble_omx", 0));
    if (useTrebleOmx) {
        using namespace ::android::hardware::media::omx::V1_0;
        sp<IOmx> omx = IOmx::getService(true);
        if (omx == nullptr) {
            LOG(ERROR) << "Cannot create a Treble IOmx service.";
        } else if (omx->registerAsService("default") != OK) {
            LOG(ERROR) << "Cannot register a Treble IOmx service.";
        } else {
            LOG(VERBOSE) << "Treble IOmx service created.";
        }
    }

    ProcessState::self()->startThreadPool();
    IPCThreadState::self()->joinThreadPool();
}