org.apache.openmeetings.core.converter.RecordingConverter.java Source code

Introduction

Here is the source code for org.apache.openmeetings.core.converter.RecordingConverter.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
package org.apache.openmeetings.core.converter;

import static java.util.UUID.randomUUID;
import static org.apache.openmeetings.util.CalendarHelper.formatMillis;
import static org.apache.openmeetings.util.OmFileHelper.getRecordingChunk;

import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.apache.openmeetings.db.entity.record.Recording;
import org.apache.openmeetings.db.entity.record.RecordingChunk;
import org.apache.openmeetings.db.entity.record.RecordingChunk.Status;
import org.apache.openmeetings.util.process.ProcessResultList;
import org.apache.wicket.util.string.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class RecordingConverter extends BaseConverter implements IRecordingConverter {
    private static final Logger log = LoggerFactory.getLogger(RecordingConverter.class);

    @Override
    public void startConversion(Recording r) {
        if (r == null) {
            log.warn("Conversion is NOT started. Recording passed is NULL");
            return;
        }
        ProcessResultList logs = new ProcessResultList();
        List<File> waveFiles = new ArrayList<>();
        try {
            log.debug("recording {}", r.getId());

            File streamFolder = getStreamFolder(r);

            RecordingChunk screenChunk = chunkDao.getScreenByRecording(r.getId());

            if (screenChunk == null) {
                throw new ConversionException("screenMetaData is Null recordingId " + r.getId());
            }

            if (screenChunk.getStreamStatus() == Status.NONE) {
                printChunkInfo(screenChunk, "StartConversion");
                throw new ConversionException("Stream has not been started, error in recording");
            }
            if (Strings.isEmpty(r.getHash())) {
                r.setHash(randomUUID().toString());
            }
            r.setStatus(Recording.Status.CONVERTING);
            r = recordingDao.update(r);

            screenChunk = waitForTheStream(screenChunk.getId());

            // Merge Wave to Full Length
            File wav = new File(streamFolder, screenChunk.getStreamName() + "_FINAL_WAVE.wav");
            createWav(r, logs, streamFolder, waveFiles, wav, null);

            chunkDao.update(screenChunk);

            // Merge Audio with Video / Calculate resulting FLV

            String inputScreenFullFlv = getRecordingChunk(r.getRoomId(), screenChunk.getStreamName())
                    .getCanonicalPath();

            // ffmpeg -vcodec flv -qscale 9.5 -r 25 -ar 22050 -ab 32k -s 320x240
            // -i 65318fb5c54b1bc1b1bca077b493a914_28_12_2009_23_38_17_FINAL_WAVE.wav
            // -i 65318fb5c54b1bc1b1bca077b493a914_28_12_2009_23_38_17.flv
            // final1.flv

            int flvWidth = r.getWidth();
            int flvHeight = r.getHeight();

            log.debug("flvWidth -1- {}", flvWidth);
            log.debug("flvHeight -1- {}", flvHeight);

            flvWidth = (int) (16. * flvWidth / 16);
            flvHeight = (int) (16. * flvHeight / 16);

            log.debug("flvWidth -2- {}", flvWidth);
            log.debug("flvHeight -2- {}", flvHeight);

            r.setWidth(flvWidth);
            r.setHeight(flvHeight);

            String mp4path = convertToMp4(r,
                    Arrays.asList("-itsoffset", formatMillis(diff(screenChunk.getStart(), r.getRecordStart())),
                            "-i", inputScreenFullFlv, "-i", wav.getCanonicalPath()),
                    logs);

            finalizeRec(r, mp4path, logs);
        } catch (Exception err) {
            log.error("[startConversion]", err);
            r.setStatus(Recording.Status.ERROR);
        }
        postProcess(r, logs);
        postProcess(waveFiles);
        recordingDao.update(r);
    }
}