GetInfoFromMediaInfo.java

/*
 * (C) Copyright 2016 Nuxeo SA (http://nuxeo.com/) and others.
 *
 * 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.
 *
 * Contributors:
 *     Frédéric Vadon
 */

package org.nuxeo.labs.video.operations;

import org.nuxeo.ecm.automation.OperationContext;
import org.nuxeo.ecm.automation.core.Constants;
import org.nuxeo.ecm.automation.core.annotations.Context;
import org.nuxeo.ecm.automation.core.annotations.Operation;
import org.nuxeo.ecm.automation.core.annotations.OperationMethod;
import org.nuxeo.ecm.automation.core.annotations.Param;
import org.nuxeo.ecm.automation.core.collectors.BlobCollector;
import org.nuxeo.ecm.core.api.NuxeoException;
import org.nuxeo.ecm.core.api.Blob;
import org.nuxeo.labs.video.mediainfo.MediaInfoHelper;

/**
 * @author fvadon
 */
@Operation(id = GetInfoFromMediaInfo.ID, category = Constants.CAT_SERVICES, label = "Get Info From MediaInfo", description = "Command line call to media info, the result is a map of maps put in the context variable resultContextVariable."
        + "Returns the input blob. An example would be result= "
        + "{General={Format=MPEG-4, Complete name=test.mp4}, Audio={Format profile=Layer 2, Format=MPEG Audio, Delay relative to video=83ms, ID=0}, Video={Format profile=Baseline@L2.1, Format=AVC, Format/Info=Advanced Video Codec, ID=1, Height=288 pixels, Width=512 pixels}}")
public class GetInfoFromMediaInfo {

    public static final String ID = "GetInfoFromMediaInfo";

    @Context
    protected OperationContext ctx;

    @Param(name = "resultContextVariable")
    protected String resultContextVariable;

    @OperationMethod(collector = BlobCollector.class)
    public Blob run(Blob input) throws NuxeoException {

        if (input == null) {
            return null;
        }

        ctx.put(resultContextVariable, MediaInfoHelper.getProcessedMediaInfo(input));

        return input;

    }

}