private async Task Sync(SyncJobItem jobItem, SyncJob job, Video item, User user, bool enableConversion, SyncOptions syncOptions, IProgress<double> progress, CancellationToken cancellationToken)
{
var jobOptions = _syncManager.GetVideoOptions(jobItem, job);
var conversionOptions = new VideoOptions
{
Profile = jobOptions.DeviceProfile
};
conversionOptions.DeviceId = jobItem.TargetId;
conversionOptions.Context = EncodingContext.Static;
conversionOptions.ItemId = item.Id.ToString("N");
conversionOptions.MediaSources = _mediaSourceManager.GetStaticMediaSources(item, false, user).ToList();
var streamInfo = new StreamBuilder(_logger).BuildVideoItem(conversionOptions);
var mediaSource = streamInfo.MediaSource;
// No sense creating external subs if we're already burning one into the video
var externalSubs = streamInfo.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode ?
new List<SubtitleStreamInfo>() :
streamInfo.GetExternalSubtitles(false, true, null, null);
// Mark as requiring conversion if transcoding the video, or if any subtitles need to be extracted
var requiresVideoTranscoding = streamInfo.PlayMethod == PlayMethod.Transcode && jobOptions.IsConverting;
var requiresConversion = requiresVideoTranscoding || externalSubs.Any(i => RequiresExtraction(i, mediaSource));
if (requiresConversion && !enableConversion)
{
return;
}
jobItem.MediaSourceId = streamInfo.MediaSourceId;
jobItem.TemporaryPath = GetTemporaryPath(jobItem);
if (requiresConversion)
{
jobItem.Status = SyncJobItemStatus.Converting;
}
if (requiresVideoTranscoding)
{
// Save the job item now since conversion could take a while
await _syncManager.UpdateSyncJobItemInternal(jobItem).ConfigureAwait(false);
await UpdateJobStatus(job).ConfigureAwait(false);
try
{
var lastJobUpdate = DateTime.MinValue;
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(async pct =>
{
progress.Report(pct);
if ((DateTime.UtcNow - lastJobUpdate).TotalSeconds >= DatabaseProgressUpdateIntervalSeconds)
{
jobItem.Progress = pct / 2;
await _syncManager.UpdateSyncJobItemInternal(jobItem).ConfigureAwait(false);
await UpdateJobStatus(job).ConfigureAwait(false);
}
});
jobItem.OutputPath = await _mediaEncoder.EncodeVideo(new EncodingJobOptions(streamInfo, conversionOptions.Profile)
{
OutputDirectory = jobItem.TemporaryPath,
CpuCoreLimit = syncOptions.TranscodingCpuCoreLimit,
ReadInputAtNativeFramerate = !syncOptions.EnableFullSpeedTranscoding
}, innerProgress, cancellationToken);
}
catch (OperationCanceledException)
{
jobItem.Status = SyncJobItemStatus.Queued;
jobItem.Progress = 0;
}
catch (Exception ex)
{
jobItem.Status = SyncJobItemStatus.Failed;
_logger.ErrorException("Error during sync transcoding", ex);
}
if (jobItem.Status == SyncJobItemStatus.Failed || jobItem.Status == SyncJobItemStatus.Queued)
{
await _syncManager.UpdateSyncJobItemInternal(jobItem).ConfigureAwait(false);
return;
}
jobItem.MediaSource = await GetEncodedMediaSource(jobItem.OutputPath, user, true).ConfigureAwait(false);
}
else
{
if (mediaSource.Protocol == MediaProtocol.File)
{
jobItem.OutputPath = mediaSource.Path;
}
else if (mediaSource.Protocol == MediaProtocol.Http)
{
jobItem.OutputPath = await DownloadFile(jobItem, mediaSource, cancellationToken).ConfigureAwait(false);
}
else
{
throw new InvalidOperationException(string.Format("Cannot direct stream {0} protocol", mediaSource.Protocol));
}
jobItem.MediaSource = mediaSource;
}
jobItem.MediaSource.SupportsTranscoding = false;
if (externalSubs.Count > 0)
{
// Save the job item now since conversion could take a while
await _syncManager.UpdateSyncJobItemInternal(jobItem).ConfigureAwait(false);
await ConvertSubtitles(jobItem, externalSubs, streamInfo, cancellationToken).ConfigureAwait(false);
}
jobItem.Progress = 50;
jobItem.Status = SyncJobItemStatus.ReadyToTransfer;
await _syncManager.UpdateSyncJobItemInternal(jobItem).ConfigureAwait(false);
}