public bool TryExtractMetadata(IResourceAccessor mediaItemAccessor, IDictionary <Guid, IList <MediaItemAspect> > extractedAspectData, bool importOnly, bool forceQuickMode)
{
IFileSystemResourceAccessor fsra = mediaItemAccessor as IFileSystemResourceAccessor;
if (fsra == null || !fsra.IsFile)
{
return(false);
}
if (extractedAspectData.ContainsKey(AudioAspect.ASPECT_ID))
{
return(false);
}
try
{
var extension = DosPathHelper.GetExtension(fsra.ResourceName).ToLowerInvariant();
if (extension != ".ts")
{
return(false);
}
using (MediaInfoWrapper mediaInfo = ReadMediaInfo(fsra))
{
// Before we start evaluating the file, check if it is not a video file (
if (mediaInfo.IsValid && (mediaInfo.GetVideoCount() != 0 || mediaInfo.GetAudioCount() == 0))
{
return(false);
}
string fileName = ProviderPathHelper.GetFileNameWithoutExtension(fsra.Path) ?? string.Empty;
MediaItemAspect.SetAttribute(extractedAspectData, MediaAspect.ATTR_TITLE, fileName);
MultipleMediaItemAspect providerResourceAspect = MediaItemAspect.CreateAspect(extractedAspectData, ProviderResourceAspect.Metadata);
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_SIZE, fsra.Size);
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_MIME_TYPE, "slimtv/radio");
var audioBitrate = mediaInfo.GetAudioBitrate(0);
if (audioBitrate.HasValue)
{
MediaItemAspect.SetAttribute(extractedAspectData, AudioAspect.ATTR_BITRATE, (int)(audioBitrate.Value / 1000)); // We store kbit/s;
}
var audioChannels = mediaInfo.GetAudioChannels(0);
if (audioChannels.HasValue)
{
MediaItemAspect.SetAttribute(extractedAspectData, AudioAspect.ATTR_CHANNELS, audioChannels.Value);
}
var audioSampleRate = mediaInfo.GetAudioSampleRate(0);
if (audioSampleRate.HasValue)
{
MediaItemAspect.SetAttribute(extractedAspectData, AudioAspect.ATTR_SAMPLERATE, audioSampleRate.Value);
}
MediaItemAspect.SetAttribute(extractedAspectData, AudioAspect.ATTR_ENCODING, mediaInfo.GetAudioCodec(0));
// MediaInfo returns milliseconds, we need seconds
long?time = mediaInfo.GetPlaytime(0);
if (time.HasValue && time > 1000)
{
MediaItemAspect.SetAttribute(extractedAspectData, AudioAspect.ATTR_DURATION, time.Value / 1000);
}
}
return(true);
}
catch (Exception e)
{
// Only log at the info level here - And simply return false. This makes the importer know that we
// couldn't perform our task here
ServiceRegistration.Get <ILogger>().Info("RadioRecordingMetadataExtractor: Exception reading resource '{0}' (Text: '{1}')", fsra.CanonicalLocalResourcePath, e.Message);
return(false);
}
}