private IEnumerable <AbstractMediaMetaData> ProcessBatch(
IMetaDataExtractor extractor,
IEnumerable <string> files)
{
foreach (var file in files)
{
var metaData = extractor.Extract(file);
var filename = Path.GetFileName(file);
if (metaData == null)
{
OnProgressEvent(filename, "Could not extract metadata", error: true);
continue;
}
OnProgressEvent(filename, $"Processing {filename}");
yield return(metaData);
}
}