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138 lines
5.8 KiB
C#
138 lines
5.8 KiB
C#
using MediaBrowser.Controller.Drawing;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Globalization;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Providers.Photos
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{
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public class PhotoProvider : ICustomMetadataProvider<Photo>, IHasChangeMonitor
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{
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private readonly ILogger _logger;
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private readonly IImageProcessor _imageProcessor;
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public PhotoProvider(ILogger logger, IImageProcessor imageProcessor)
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{
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_logger = logger;
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_imageProcessor = imageProcessor;
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}
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public Task<ItemUpdateType> FetchAsync(Photo item, IDirectoryService directoryService, CancellationToken cancellationToken)
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{
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item.SetImagePath(ImageType.Primary, item.Path);
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if (item.Path.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase) || item.Path.EndsWith(".jpeg", StringComparison.OrdinalIgnoreCase))
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{
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try
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{
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using (var reader = new ExifReader(item.Path))
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{
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double aperture = 0;
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double shutterSpeed = 0;
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DateTime dateTaken;
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string manufacturer;
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string model;
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reader.GetTagValue(ExifTags.FNumber, out aperture);
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reader.GetTagValue(ExifTags.ExposureTime, out shutterSpeed);
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reader.GetTagValue(ExifTags.DateTimeOriginal, out dateTaken);
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reader.GetTagValue(ExifTags.Make, out manufacturer);
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reader.GetTagValue(ExifTags.Model, out model);
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if (dateTaken > DateTime.MinValue)
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{
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item.DateCreated = dateTaken;
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item.PremiereDate = dateTaken;
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item.ProductionYear = dateTaken.Year;
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}
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var cameraModel = manufacturer ?? string.Empty;
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cameraModel += " ";
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cameraModel += model ?? string.Empty;
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var size = _imageProcessor.GetImageSize(item.Path);
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var xResolution = size.Width;
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var yResolution = size.Height;
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item.Overview = "Taken " + dateTaken.ToString("F") + "\n" +
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(!string.IsNullOrWhiteSpace(cameraModel) ? "With a " + cameraModel : "") +
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(aperture > 0 && shutterSpeed > 0 ? " at f" + aperture.ToString(CultureInfo.InvariantCulture) + " and " + PhotoHelper.Dec2Frac(shutterSpeed) + "s" : "") + "\n"
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+ (xResolution > 0 ? "\n<br/>Resolution: " + xResolution + "x" + yResolution : "");
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}
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}
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catch (Exception e)
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{
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_logger.ErrorException("Image Provider - Error reading image tag for {0}", e, item.Path);
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}
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}
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//// Get additional tags from xmp
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//try
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//{
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// using (var fs = new FileStream(item.Path, FileMode.Open, FileAccess.Read))
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// {
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// var bf = BitmapFrame.Create(fs);
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// if (bf != null)
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// {
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// var data = (BitmapMetadata)bf.Metadata;
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// if (data != null)
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// {
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// DateTime dateTaken;
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// var cameraModel = "";
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// DateTime.TryParse(data.DateTaken, out dateTaken);
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// if (dateTaken > DateTime.MinValue) item.DateCreated = dateTaken;
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// cameraModel = data.CameraModel;
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// item.PremiereDate = dateTaken;
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// item.ProductionYear = dateTaken.Year;
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// item.Overview = "Taken " + dateTaken.ToString("F") + "\n" +
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// (cameraModel != "" ? "With a " + cameraModel : "") +
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// (aperture > 0 && shutterSpeed > 0 ? " at f" + aperture.ToString(CultureInfo.InvariantCulture) + " and " + PhotoHelper.Dec2Frac(shutterSpeed) + "s" : "") + "\n"
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// + (bf.Width > 0 ? "\n<br/>Resolution: " + (int)bf.Width + "x" + (int)bf.Height : "");
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// var photo = item as Photo;
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// if (data.Keywords != null) item.Genres = photo.Tags = new List<string>(data.Keywords);
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// item.Name = !string.IsNullOrWhiteSpace(data.Title) ? data.Title : item.Name;
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// item.CommunityRating = data.Rating;
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// if (!string.IsNullOrWhiteSpace(data.Subject)) photo.AddTagline(data.Subject);
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// }
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// }
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// }
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//}
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//catch (NotSupportedException)
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//{
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// // No problem - move on
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//}
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//catch (Exception e)
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//{
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// _logger.ErrorException("Error trying to read extended data from {0}", e, item.Path);
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//}
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const ItemUpdateType result = ItemUpdateType.ImageUpdate | ItemUpdateType.MetadataImport;
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return Task.FromResult(result);
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}
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public string Name
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{
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get { return "Embedded Information"; }
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}
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public bool HasChanged(IHasMetadata item, IDirectoryService directoryService, DateTime date)
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{
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return item.DateModified > date;
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}
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}
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}
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