services/mediaextractor/MediaExtractorService.cpp

/*
 * Copyright (C) 2013 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.
 */

#define LOG_TAG "MediaExtractorService"
//#define LOG_NDEBUG 0
#include <utils/Log.h>

#include <utils/Vector.h>

#include <datasource/DataSourceFactory.h>
#include <media/DataSource.h>
#include <media/stagefright/InterfaceUtils.h>
#include <media/stagefright/MediaExtractorFactory.h>
#include <media/stagefright/RemoteDataSource.h>
#include "MediaExtractorService.h"

namespace android {

MediaExtractorService::MediaExtractorService()
        : BnMediaExtractorService() {
    MediaExtractorFactory::LoadExtractors();
}

sp<IMediaExtractor> MediaExtractorService::makeExtractor(
        const sp<IDataSource> &remoteSource, const char *mime) {
    ALOGV("@@@ MediaExtractorService::makeExtractor for %s", mime);

    sp<DataSource> localSource = CreateDataSourceFromIDataSource(remoteSource);

    sp<IMediaExtractor> extractor = MediaExtractorFactory::CreateFromService(localSource, mime);

    ALOGV("extractor service created %p (%s)",
            extractor.get(),
            extractor == nullptr ? "" : extractor->name());

    if (extractor != nullptr) {
        registerMediaExtractor(extractor, localSource, mime);
        return extractor;
    }
    return nullptr;
}

sp<IDataSource> MediaExtractorService::makeIDataSource(int fd, int64_t offset, int64_t length)
{
    sp<DataSource> source = DataSourceFactory::CreateFromFd(fd, offset, length);
    return CreateIDataSourceFromDataSource(source);
}

std::unordered_set<std::string> MediaExtractorService::getSupportedTypes() {
    return MediaExtractorFactory::getSupportedTypes();
}

status_t MediaExtractorService::dump(int fd, const Vector<String16>& args) {
    return MediaExtractorFactory::dump(fd, args) || dumpExtractors(fd, args);
}

status_t MediaExtractorService::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
        uint32_t flags)
{
    return BnMediaExtractorService::onTransact(code, data, reply, flags);
}

}   // namespace android