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);
}
}
public void AddMediaInfo(MediaInfoWrapper mediaInfo)
{
// This method will be called at least one time, for video DVDs it will be called multiple times for the different
// .ifo files. The first time this method is called, the given media info instance is the "major" instance, i.e.
// in case of a video DVD, it is the video_ts.ifo file.
// We will collect most of our interesting attributes by taking the first one which is available. All others will then be
// ignored. Only for some attributes, all values will be collected.
for (int i = 0; i < mediaInfo.GetVideoCount(); i++)
{
if (!_ar.HasValue)
{
_ar = mediaInfo.GetAR(i);
}
if (!_frameRate.HasValue)
{
_frameRate = mediaInfo.GetFramerate(i);
}
if (!_width.HasValue)
{
_width = mediaInfo.GetWidth(i);
}
if (!_height.HasValue)
{
_height = mediaInfo.GetHeight(i);
}
if (!_playTime.HasValue)
{
long?time = mediaInfo.GetPlaytime(i);
if (time.HasValue && time > 1000)
{
_playTime = time.Value;
}
}
if (!_vidBitRate.HasValue)
{
_vidBitRate = mediaInfo.GetVidBitrate(i);
}
string vidCodec = mediaInfo.GetVidCodec(i);
if (!string.IsNullOrEmpty(vidCodec) && !_vidCodecs.Contains(vidCodec))
{
_vidCodecs.Add(vidCodec);
}
}
_audioStreamCount = mediaInfo.GetAudioCount();
for (int i = 0; i < _audioStreamCount; i++)
{
if (!_audBitRate.HasValue)
{
_audBitRate = mediaInfo.GetAudioBitrate(i);
}
string audCodec = mediaInfo.GetAudioCodec(i);
if (!string.IsNullOrEmpty(audCodec) && !_audCodecs.Contains(audCodec))
{
_audCodecs.Add(audCodec);
}
string audLang = mediaInfo.GetAudioLanguage(i);
if (!string.IsNullOrEmpty(audLang) && !_audioLanguages.Contains(audLang))
{
_audioLanguages.Add(audLang);
}
}
}