protected VideoDriveHandler(DriveInfo driveInfo, IEnumerable <Guid> extractedMIATypeIds) : base(driveInfo)
{
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
ResourcePath rp = LocalFsResourceProviderBase.ToResourcePath(driveInfo.Name);
IResourceAccessor ra;
if (!rp.TryCreateLocalResourceAccessor(out ra))
{
throw new ArgumentException(string.Format("Unable to access drive '{0}'", driveInfo.Name));
}
using (ra)
_mediaItem = mediaAccessor.CreateLocalMediaItem(ra, mediaAccessor.GetMetadataExtractorsForMIATypes(extractedMIATypeIds));
if (_mediaItem == null)
{
throw new Exception(string.Format("Could not create media item for drive '{0}'", driveInfo.Name));
}
MatchWithStubs(driveInfo, new MediaItem[] { _mediaItem });
IEnumerable <MediaItem> processedItems = CertificationHelper.ProcessMediaItems(new MediaItem[] { _mediaItem });
if (processedItems.Count() == 0)
{
_mediaItem = null;
return;
}
_mediaItem = processedItems.First();
SingleMediaItemAspect mia = null;
MediaItemAspect.TryGetAspect(_mediaItem.Aspects, MediaAspect.Metadata, out mia);
mia.SetAttribute(MediaAspect.ATTR_TITLE, mia.GetAttributeValue(MediaAspect.ATTR_TITLE) +
" (" + DriveUtils.GetDriveNameWithoutRootDirectory(driveInfo) + ")");
}
public static MediaItem CreateMediaItem(string filename)
{
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
IEnumerable <Guid> meIds = mediaAccessor.GetMetadataExtractorsForMIATypes(NECESSARY_VIDEO_MIAS);
ResourceLocator resourceLocator = new ResourceLocator(LocalFsResourceProviderBase.ToResourcePath(filename));
IResourceAccessor ra = resourceLocator.CreateAccessor();
if (ra == null)
{
return(null);
}
using (ra)
return(mediaAccessor.CreateLocalMediaItem(ra, meIds));
}
protected VideoDriveHandler(DriveInfo driveInfo, IEnumerable <Guid> extractedMIATypeIds) : base(driveInfo)
{
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
ResourcePath rp = LocalFsResourceProviderBase.ToResourcePath(driveInfo.Name);
IResourceAccessor ra;
if (!rp.TryCreateLocalResourceAccessor(out ra))
{
throw new ArgumentException(string.Format("Unable to access drive '{0}'", driveInfo.Name));
}
using (ra)
_mediaItem = mediaAccessor.CreateLocalMediaItem(ra, mediaAccessor.GetMetadataExtractorsForMIATypes(extractedMIATypeIds));
if (_mediaItem == null)
{
throw new Exception(string.Format("Could not create media item for drive '{0}'", driveInfo.Name));
}
MediaItemAspect mia = _mediaItem.Aspects[MediaAspect.ASPECT_ID];
mia.SetAttribute(MediaAspect.ATTR_TITLE, mia.GetAttributeValue(MediaAspect.ATTR_TITLE) +
" (" + DriveUtils.GetDriveNameWithoutRootDirectory(driveInfo) + ")");
}
/// <summary>
/// Detects if the directory of the given <paramref name="resourcePath"/> contains video, image or audio media files and
/// returns <see cref="MediaItem"/> instances for those files.
/// </summary>
/// <param name="resourcePath">The resource path instance for the directory to be examined.</param>
/// <param name="videoMIATypeIds">Ids of the media item aspects to be extracted from video items.</param>
/// <param name="imageMIATypeIds">Ids of the media item aspects to be extracted from image items.</param>
/// <param name="audioMIATypeIds">Ids of the media item aspects to be extracted from audio items.</param>
/// <param name="mediaItems">Returns a collection of media items in the given <paramref name="resourcePath"/> or <c>null</c>,
/// if the return value is <see cref="MultiMediaType.None"/>.</param>
/// <returns>Type of media items found.</returns>
public static MultiMediaType DetectMultimedia(ResourcePath resourcePath,
IEnumerable <Guid> videoMIATypeIds, IEnumerable <Guid> imageMIATypeIds, IEnumerable <Guid> audioMIATypeIds,
out ICollection <MediaItem> mediaItems)
{
try
{
mediaItems = new List <MediaItem>();
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
IEnumerable <Guid> meIds = mediaAccessor.GetMetadataExtractorsForMIATypes(videoMIATypeIds.Union(imageMIATypeIds).Union(audioMIATypeIds));
using (IResourceAccessor ra = new ResourceLocator(resourcePath).CreateAccessor())
{
IFileSystemResourceAccessor directoryRA = ra as IFileSystemResourceAccessor;
if (ra != null)
{
AddLocalMediaItemsRecursive(directoryRA, mediaItems, meIds, mediaAccessor);
}
}
MultiMediaType result = MultiMediaType.None;
foreach (MediaItem item in mediaItems)
{ // Check the type of our extracted media items
MultiMediaType itemType = GetTypeOfMediaItem(item);
if (result == MultiMediaType.None) // Initialize the result type with the type of the first media item
{
result = itemType;
}
else if (result != itemType) // Check if we have different item types
{
result = MultiMediaType.Diverse;
break;
}
}
return(result);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("Error while detecting the media items in resource {0}", e, resourcePath);
mediaItems = null;
return(MultiMediaType.None);
}
}
/// <summary>
/// Detects if the directory of the given <paramref name="resourcePath"/> contains video, image or audio media files.
/// </summary>
/// <param name="resourcePath">The resource path instance for the directory to be examined.</param>
/// <param name="videoMIATypeIds">Ids of the media item aspects to be extracted from video items.</param>
/// <param name="imageMIATypeIds">Ids of the media item aspects to be extracted from image items.</param>
/// <param name="audioMIATypeIds">Ids of the media item aspects to be extracted from audio items.</param>
/// if the return value is <see cref="MultiMediaType.None"/>.</param>
/// <returns>Type of media items found.</returns>
public static MultiMediaType DetectMultimedia(ResourcePath resourcePath,
IEnumerable <Guid> videoMIATypeIds, IEnumerable <Guid> imageMIATypeIds, IEnumerable <Guid> audioMIATypeIds)
{
try
{
MultiMediaType result = MultiMediaType.None;
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
IEnumerable <Guid> meIds = mediaAccessor.GetMetadataExtractorsForMIATypes(videoMIATypeIds.Union(imageMIATypeIds).Union(audioMIATypeIds));
using (IResourceAccessor ra = new ResourceLocator(resourcePath).CreateAccessor())
{
IFileSystemResourceAccessor directoryRA = ra as IFileSystemResourceAccessor;
if (ra != null)
{
DetectMultimediaTypeRecursive(directoryRA, meIds, mediaAccessor, ref result);
}
}
return(result);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("Error while detecting the media items in resource {0}", e, resourcePath);
return(MultiMediaType.None);
}
}
protected internal override void ReLoadItemsAndSubViewSpecifications(out IList <MediaItem> mediaItems, out IList <ViewSpecification> subViewSpecifications)
{
mediaItems = new List <MediaItem>();
subViewSpecifications = new List <ViewSpecification>();
IMediaAccessor mediaAccessor = ServiceRegistration.Get <IMediaAccessor>();
IEnumerable <Guid> metadataExtractorIds = mediaAccessor.GetMetadataExtractorsForMIATypes(_necessaryMIATypeIds.Union(_optionalMIATypeIds));
IResourceAccessor baseResourceAccessor;
if (!_viewPath.TryCreateLocalResourceAccessor(out baseResourceAccessor))
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification.ReLoadItemsAndSubViewSpecifications: Cannot access local view path '{0}'", _viewPath);
return;
}
using (baseResourceAccessor)
{
IFileSystemResourceAccessor fsra = baseResourceAccessor as IFileSystemResourceAccessor;
if (fsra == null)
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification.ReLoadItemsAndSubViewSpecifications: Cannot access local view path '{0}' - no local file system resource", _viewPath);
return;
}
// Add all items at the specified path
ICollection <IFileSystemResourceAccessor> files = null;
try
{
files = FileSystemResourceNavigator.GetFiles(fsra, false);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification: Error getting files for '{0}': {1}", fsra, e.Message);
}
if (files != null)
{
foreach (IFileSystemResourceAccessor childAccessor in files)
{
using (childAccessor)
try
{
MediaItem result = mediaAccessor.CreateLocalMediaItem(childAccessor, metadataExtractorIds);
if (result != null)
{
mediaItems.Add(result);
}
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification: Error creating local media item for '{0}': {1}", childAccessor, e.Message);
}
}
}
ICollection <IFileSystemResourceAccessor> directories = null;
try
{
directories = FileSystemResourceNavigator.GetChildDirectories(fsra, false);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification: Error getting child directories for '{0}': {1}", fsra, e.Message);
}
if (directories != null)
{
foreach (IFileSystemResourceAccessor childAccessor in directories)
{
using (childAccessor)
try
{
MediaItem result = mediaAccessor.CreateLocalMediaItem(childAccessor, metadataExtractorIds);
if (result == null)
{
subViewSpecifications.Add(new LocalDirectoryViewSpecification(null, childAccessor.CanonicalLocalResourcePath,
_necessaryMIATypeIds, _optionalMIATypeIds));
}
else
{
mediaItems.Add(result);
}
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("LocalDirectoryViewSpecification: Error creating media item or view specification for '{0}': {1}", childAccessor, e.Message);
}
}
}
}
}
