001/*
002 * (C) Copyright 2010 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021package org.nuxeo.ecm.platform.video.convert;
022
023import java.util.List;
024import java.util.regex.Matcher;
025import java.util.regex.Pattern;
026
027import org.nuxeo.common.utils.StringUtils;
028import org.nuxeo.ecm.core.convert.api.ConversionException;
029import org.nuxeo.ecm.platform.commandline.executor.api.CommandLineExecutorService;
030
031/**
032 * Factorize common code for video converter implementations.
033 *
034 * @author ogrisel
035 */
036public abstract class BaseVideoConverter {
037
038    protected static final Pattern DURATION_PATTERN = Pattern.compile("Duration: (\\d\\d):(\\d\\d):(\\d\\d)\\.(\\d+)");
039
040    /**
041     * @deprecated since 5.5. The duration is now extracted with the other information stored in the VideoInfo.
042     */
043    @Deprecated
044    protected static Double extractDuration(List<String> output) throws ConversionException {
045        for (String line : output) {
046            Matcher matcher = DURATION_PATTERN.matcher(line);
047            if (matcher.find()) {
048                return Double.parseDouble(matcher.group(1)) * 3600 + Double.parseDouble(matcher.group(2)) * 60
049                        + Double.parseDouble(matcher.group(3)) + Double.parseDouble(matcher.group(3)) / 100;
050            }
051        }
052        // could not find the duration
053        throw new ConversionException("failed to extract the duration from output: " + StringUtils.join(output, " "));
054    }
055
056    /**
057     * @deprecated since 5.5.
058     */
059    @Deprecated
060    public static String quoteFilePath(String filePath) {
061        return String.format("\"%s\"", filePath);
062    }
063
064}