Examples with SilenceDetectionFailedException org.opencastproject.silencedetection.api.SilenceDetectionFailedException used on opensource projects

Example 6 with SilenceDetectionFailedException

use of org.opencastproject.silencedetection.api.SilenceDetectionFailedException in project opencast by opencast.

the class SilenceDetectionWorkflowOperationHandler method start.

@Override
public WorkflowOperationResult start(WorkflowInstance workflowInstance, JobContext context) throws WorkflowOperationException {
    MediaPackage mp = workflowInstance.getMediaPackage();
    logger.debug("Start silence detection workflow operation for mediapackage {}", mp.getIdentifier().compact());
    String sourceFlavors = StringUtils.trimToNull(workflowInstance.getCurrentOperation().getConfiguration(SOURCE_FLAVORS_PROPERTY));
    String sourceFlavor = StringUtils.trimToNull(workflowInstance.getCurrentOperation().getConfiguration(SOURCE_FLAVOR_PROPERTY));
    String smilFlavorSubType = StringUtils.trimToNull(workflowInstance.getCurrentOperation().getConfiguration(SMIL_FLAVOR_SUBTYPE_PROPERTY));
    String smilTargetFlavorString = StringUtils.trimToNull(workflowInstance.getCurrentOperation().getConfiguration(SMIL_TARGET_FLAVOR_PROPERTY));
    MediaPackageElementFlavor smilTargetFlavor = null;
    if (smilTargetFlavorString != null)
        smilTargetFlavor = MediaPackageElementFlavor.parseFlavor(smilTargetFlavorString);
    if (sourceFlavor == null && sourceFlavors == null) {
        throw new WorkflowOperationException(String.format("No %s or %s have been specified", SOURCE_FLAVOR_PROPERTY, SOURCE_FLAVORS_PROPERTY));
    }
    if (smilFlavorSubType == null && smilTargetFlavor == null) {
        throw new WorkflowOperationException(String.format("No %s or %s have been specified", SMIL_FLAVOR_SUBTYPE_PROPERTY, SMIL_TARGET_FLAVOR_PROPERTY));
    }
    if (sourceFlavors != null && smilTargetFlavor != null) {
        throw new WorkflowOperationException(String.format("Can't use %s and %s together", SOURCE_FLAVORS_PROPERTY, SMIL_TARGET_FLAVOR_PROPERTY));
    }
    final String finalSourceFlavors;
    if (smilTargetFlavor != null) {
        finalSourceFlavors = sourceFlavor;
    } else {
        finalSourceFlavors = sourceFlavors;
    }
    String referenceTracksFlavor = StringUtils.trimToNull(workflowInstance.getCurrentOperation().getConfiguration(REFERENCE_TRACKS_FLAVOR_PROPERTY));
    if (referenceTracksFlavor == null)
        referenceTracksFlavor = finalSourceFlavors;
    TrackSelector trackSelector = new TrackSelector();
    for (String flavor : asList(finalSourceFlavors)) {
        trackSelector.addFlavor(flavor);
    }
    Collection<Track> sourceTracks = trackSelector.select(mp, false);
    if (sourceTracks.isEmpty()) {
        logger.info("No source tracks found, skip silence detection");
        return createResult(mp, Action.SKIP);
    }
    trackSelector = new TrackSelector();
    for (String flavor : asList(referenceTracksFlavor)) {
        trackSelector.addFlavor(flavor);
    }
    Collection<Track> referenceTracks = trackSelector.select(mp, false);
    if (referenceTracks.isEmpty()) {
        // REFERENCE_TRACKS_FLAVOR_PROPERTY was set to wrong value
        throw new WorkflowOperationException(String.format("No tracks found filtered by flavor(s) '%s'", referenceTracksFlavor));
    }
    MediaPackageElementBuilder mpeBuilder = MediaPackageElementBuilderFactory.newInstance().newElementBuilder();
    for (Track sourceTrack : sourceTracks) {
        // Skip over track with no audio stream
        if (!sourceTrack.hasAudio()) {
            logger.info("Skipping silence detection of track {} since it has no audio", sourceTrack);
            continue;
        }
        logger.info("Executing silence detection on track {}", sourceTrack.getIdentifier());
        try {
            Job detectionJob = detetionService.detect(sourceTrack, referenceTracks.toArray(new Track[referenceTracks.size()]));
            if (!waitForStatus(detectionJob).isSuccess()) {
                throw new WorkflowOperationException("Silence Detection failed");
            }
            Smil smil = smilService.fromXml(detectionJob.getPayload()).getSmil();
            InputStream is = null;
            try {
                is = IOUtils.toInputStream(smil.toXML(), "UTF-8");
                URI smilURI = workspace.put(mp.getIdentifier().compact(), smil.getId(), TARGET_FILE_NAME, is);
                MediaPackageElementFlavor smilFlavor = smilTargetFlavor;
                if (smilFlavor == null)
                    smilFlavor = new MediaPackageElementFlavor(sourceTrack.getFlavor().getType(), smilFlavorSubType);
                Catalog catalog = (Catalog) mpeBuilder.elementFromURI(smilURI, MediaPackageElement.Type.Catalog, smilFlavor);
                catalog.setIdentifier(smil.getId());
                mp.add(catalog);
            } catch (Exception ex) {
                throw new WorkflowOperationException(String.format("Failed to put smil into workspace. Silence detection for track %s failed", sourceTrack.getIdentifier()), ex);
            } finally {
                IOUtils.closeQuietly(is);
            }
            logger.info("Finished silence detection on track {}", sourceTrack.getIdentifier());
        } catch (SilenceDetectionFailedException ex) {
            throw new WorkflowOperationException(String.format("Failed to create silence detection job for track %s", sourceTrack.getIdentifier()));
        } catch (SmilException ex) {
            throw new WorkflowOperationException(String.format("Failed to get smil from silence detection job for track %s", sourceTrack.getIdentifier()));
        }
    }
    logger.debug("Finished silence detection workflow operation for mediapackage {}", mp.getIdentifier().compact());
    return createResult(mp, Action.CONTINUE);
}