Merge branch 'master' of https://github.com/rmcrackan/Libation

Source/AaxDecrypter/AaxcDownloadConvertBase.cs

@@ -103,8 +103,8 @@ namespace AaxDecrypter
 
 			OnInitialized();
 			OnRetrievedTitle(AaxFile.AppleTags.TitleSansUnabridged);
-			OnRetrievedAuthors(AaxFile.AppleTags.FirstAuthor ?? "[unknown]");
+			OnRetrievedAuthors(AaxFile.AppleTags.FirstAuthor);
-			OnRetrievedNarrators(AaxFile.AppleTags.Narrator ?? "[unknown]");
+			OnRetrievedNarrators(AaxFile.AppleTags.Narrator);
 			OnRetrievedCoverArt(AaxFile.AppleTags.Cover);
 
 			return !IsCanceled;

Source/AaxDecrypter/NetworkFileStream.cs

@@ -61,9 +61,6 @@ namespace AaxDecrypter
 
 		#region Constants
 
-		//Size of each range request. Android app uses 64MB chunks.
-		private const int RANGE_REQUEST_SZ = 64 * 1024 * 1024;
-
 		//Download memory buffer size
 		private const int DOWNLOAD_BUFF_SZ = 8 * 1024;
 
@@ -161,7 +158,7 @@ namespace AaxDecrypter
 
 			//Initiate connection with the first request block and
 			//get the total content length before returning.
-			using var client = new HttpClient();
+			var client = new HttpClient();
 			var response = await RequestNextByteRangeAsync(client);
 
 			if (ContentLength != 0 && ContentLength != response.FileSize)
@@ -170,38 +167,59 @@ namespace AaxDecrypter
 			ContentLength = response.FileSize;
 
 			_downloadedPiece = new EventWaitHandle(false, EventResetMode.AutoReset);
-			//Hand off the open request to the downloader to download and write data to file.
+			//Hand off the client and the open request to the downloader to download and write data to file.
-			DownloadTask = Task.Run(() => DownloadLoopInternal(response), _cancellationSource.Token);
+			DownloadTask = Task.Run(() => DownloadLoopInternal(client , response), _cancellationSource.Token);
 		}
 
-		private async Task DownloadLoopInternal(BlockResponse initialResponse)
+		private async Task DownloadLoopInternal(HttpClient client, BlockResponse blockResponse)
 		{
-			await DownloadToFile(initialResponse);
-			initialResponse.Dispose();
-
 			try
 			{
-				using var client = new HttpClient();
+				long startPosition = WritePosition;
+
 				while (WritePosition < ContentLength && !IsCancelled)
 				{
-					using var response = await RequestNextByteRangeAsync(client);
+					try
-					await DownloadToFile(response);
+					{
+						await DownloadToFile(blockResponse);
+					}
+					catch (HttpIOException e)
+						when (e.HttpRequestError is HttpRequestError.ResponseEnded
+								&& WritePosition != startPosition
+								&& WritePosition < ContentLength && !IsCancelled)
+					{
+						Serilog.Log.Logger.Debug($"The download connection ended before the file completed downloading all 0x{ContentLength:X10} bytes");
+
+						//the download made *some* progress since the last attempt.
+						//Try again to complete the download from where it left off.
+						//Make sure to rewind file to last flush position.
+						_writeFile.Position = startPosition = WritePosition;
+						blockResponse.Dispose();
+						blockResponse = await RequestNextByteRangeAsync(client);
+
+						Serilog.Log.Logger.Debug($"Resuming the file download starting at position 0x{WritePosition:X10}.");
+					}
 				}
 			}
 			finally
 			{
-				_writeFile.Close();
+				_writeFile.Dispose();
+				blockResponse.Dispose();
+				client.Dispose();
 			}
 		}
 
 		private async Task<BlockResponse> RequestNextByteRangeAsync(HttpClient client)
 		{
-			var request = new HttpRequestMessage(HttpMethod.Get, Uri);
+			using var request = new HttpRequestMessage(HttpMethod.Get, Uri);
+
+			//Just in case it snuck in the saved json (Issue #1232)
+			RequestHeaders.Remove("Range");
 
 			foreach (var header in RequestHeaders)
 				request.Headers.Add(header.Key, header.Value);
 
-			request.Headers.Add("Range", $"bytes={WritePosition}-{WritePosition + RANGE_REQUEST_SZ - 1}");
+			request.Headers.Add("Range", $"bytes={WritePosition}-");
 
 			var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, _cancellationSource.Token);
 
@@ -226,7 +244,7 @@ namespace AaxDecrypter
 		private async Task DownloadToFile(BlockResponse block)
 		{
 			var endPosition = WritePosition + block.BlockSize;
-			var networkStream = await block.Response.Content.ReadAsStreamAsync(_cancellationSource.Token);
+			using var networkStream = await block.Response.Content.ReadAsStreamAsync(_cancellationSource.Token);
 
 			var downloadPosition = WritePosition;
 			var nextFlush = downloadPosition + DATA_FLUSH_SZ;
@@ -286,7 +304,6 @@ namespace AaxDecrypter
 			}
 			finally
 			{
-				networkStream.Close();
 				_downloadedPiece.Set();
 				OnUpdate();
 			}

Source/ApplicationServices/LibraryExporter.cs

@@ -104,9 +104,6 @@ namespace ApplicationServices
 		[Name("Content Type")]
 		public string ContentType { get; set; }
 
-        [Name("Audio Format")]
-		public string AudioFormat { get; set; }
-
 		[Name("Language")]
         public string Language { get; set; }
 
@@ -152,7 +149,6 @@ namespace ApplicationServices
 				BookStatus = a.Book.UserDefinedItem.BookStatus.ToString(),
 				PdfStatus = a.Book.UserDefinedItem.PdfStatus.ToString(),
 				ContentType = a.Book.ContentType.ToString(),
-				AudioFormat = a.Book.AudioFormat.ToString(),
 				Language = a.Book.Language,
 				LastDownloaded = a.Book.UserDefinedItem.LastDownloaded,
 				LastDownloadedVersion = a.Book.UserDefinedItem.LastDownloadedVersion?.ToString() ?? "",
@@ -228,7 +224,6 @@ namespace ApplicationServices
 				nameof(ExportDto.BookStatus),
 				nameof(ExportDto.PdfStatus),
 				nameof(ExportDto.ContentType),
-				nameof(ExportDto.AudioFormat),
                 nameof(ExportDto.Language),
                 nameof(ExportDto.LastDownloaded),
                 nameof(ExportDto.LastDownloadedVersion),
@@ -299,7 +294,6 @@ namespace ApplicationServices
 				row.CreateCell(col++).SetCellValue(dto.BookStatus);
 				row.CreateCell(col++).SetCellValue(dto.PdfStatus);
 				row.CreateCell(col++).SetCellValue(dto.ContentType);
-                row.CreateCell(col++).SetCellValue(dto.AudioFormat);
                 row.CreateCell(col++).SetCellValue(dto.Language);
 
 				if (dto.LastDownloaded.HasValue)

Source/DataLayer/Configurations/BookConfig.cs

@@ -19,7 +19,6 @@ namespace DataLayer.Configurations
             //
             entity.Ignore(nameof(Book.Authors));
             entity.Ignore(nameof(Book.Narrators));
-            entity.Ignore(nameof(Book.AudioFormat));
             entity.Ignore(nameof(Book.TitleWithSubtitle));
             entity.Ignore(b => b.Categories);
 

Source/DataLayer/EfClasses/AudioFormat.cs

@@ -1,65 +0,0 @@
-using System;
-
-namespace DataLayer
-{
-    internal enum AudioFormatEnum : long
-    {
-        //Defining the enum this way ensures that when comparing:
-        //LC_128_44100_stereo > LC_64_44100_stereo > LC_64_22050_stereo > LC_64_22050_stereo
-        //This matches how audible interprets these codecs when specifying quality using AudibleApi.DownloadQuality
-        //I've never seen mono formats.
-        Unknown = 0,
-        LC_32_22050_stereo = (32L << 18) | (22050 << 2) | 2,
-        LC_64_22050_stereo = (64L << 18) | (22050 << 2) | 2,
-        LC_64_44100_stereo = (64L << 18) | (44100 << 2) | 2,
-        LC_128_44100_stereo = (128L << 18) | (44100 << 2) | 2,
-		AAX_22_32 = LC_32_22050_stereo,
-		AAX_22_64 = LC_64_22050_stereo,
-		AAX_44_64 = LC_64_44100_stereo,
-		AAX_44_128 = LC_128_44100_stereo
-	}
-
-    public class AudioFormat : IComparable<AudioFormat>, IComparable
-    {
-        internal int AudioFormatID { get; private set; }
-        public int Bitrate { get; private init; }
-        public int SampleRate { get; private init; }
-        public int Channels { get; private init; }
-        public bool IsValid => Bitrate != 0 && SampleRate != 0 && Channels != 0;
-
-        public static AudioFormat FromString(string formatStr)
-        {
-            if (Enum.TryParse(formatStr, ignoreCase: true, out AudioFormatEnum enumVal))
-                return FromEnum(enumVal);
-            return FromEnum(AudioFormatEnum.Unknown);
-        }
-
-        internal static AudioFormat FromEnum(AudioFormatEnum enumVal)
-        {
-            var val = (long)enumVal;
-
-            return new()
-            {
-                Bitrate = (int)(val >> 18),
-                SampleRate = (int)(val >> 2) & ushort.MaxValue,
-                Channels = (int)(val & 3)
-            };
-        }
-        internal AudioFormatEnum ToEnum()
-        {
-            var val = (AudioFormatEnum)(((long)Bitrate << 18) | ((long)SampleRate << 2) | (long)Channels);
-
-            return Enum.IsDefined(val) ?
-                val : AudioFormatEnum.Unknown;
-        }
-
-        public override string ToString()
-            => IsValid ?
-            $"{Bitrate} Kbps, {SampleRate / 1000d:F1} kHz, {(Channels == 2 ? "Stereo" : Channels)}" :
-            "Unknown";
-
-        public int CompareTo(AudioFormat other) => ToEnum().CompareTo(other.ToEnum());
-
-        public int CompareTo(object obj) => CompareTo(obj as AudioFormat);
-    }
-}

Source/DataLayer/EfClasses/Book.cs

@@ -43,9 +43,9 @@ namespace DataLayer
         public ContentType ContentType { get; private set; }
         public string Locale { get; private set; }
 
-        internal AudioFormatEnum _audioFormat;
+        //This field is now unused, however, there is little sense in adding a
-
+        //database migration to remove an unused field. Leave it for compatibility.
-        public AudioFormat AudioFormat { get => AudioFormat.FromEnum(_audioFormat); set => _audioFormat = value.ToEnum(); }
+        internal long _audioFormat;
 
         // mutable
         public string PictureId { get; set; }

Source/DtoImporterService/BookImporter.cs

@@ -154,9 +154,6 @@ namespace DtoImporterService
 			// Update the book titles, since formatting can change
 			book.UpdateTitle(item.Title, item.Subtitle);
 
-			var codec = item.AvailableCodecs?.Max(f => AudioFormat.FromString(f.EnhancedCodec)) ?? new AudioFormat();
-			book.AudioFormat = codec;
-
 			// set/update book-specific info which may have changed
 			if (item.PictureId is not null)
 				book.PictureId = item.PictureId;

Source/FileLiberator/AudioDecodable.cs

@@ -19,6 +19,7 @@ namespace FileLiberator
         protected void OnTitleDiscovered(object _, string title)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(TitleDiscovered), Title = title });
+            if (title != null)
                 TitleDiscovered?.Invoke(this, title);
 		}
 
@@ -26,6 +27,7 @@ namespace FileLiberator
         protected void OnAuthorsDiscovered(object _, string authors)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(AuthorsDiscovered), Authors = authors });
+			if (authors != null)
 				AuthorsDiscovered?.Invoke(this, authors);
 		}
 
@@ -33,6 +35,7 @@ namespace FileLiberator
         protected void OnNarratorsDiscovered(object _, string narrators)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(NarratorsDiscovered), Narrators = narrators });
+			if (narrators != null)
 				NarratorsDiscovered?.Invoke(this, narrators);
 		}
 

Source/FileLiberator/AudioFileStorageExt.cs

@@ -39,8 +39,8 @@ namespace FileLiberator
 		/// Path: in progress directory.
 		/// File name: final file name.
 		/// </summary>
-		public static string GetInProgressFilename(this AudioFileStorage _, LibraryBook libraryBook, string extension)
+		public static string GetInProgressFilename(this AudioFileStorage _, LibraryBookDto libraryBook, string extension)
-			=> Templates.File.GetFilename(libraryBook.ToDto(), AudibleFileStorage.DecryptInProgressDirectory, extension, returnFirstExisting: true);
+			=> Templates.File.GetFilename(libraryBook, AudibleFileStorage.DecryptInProgressDirectory, extension, returnFirstExisting: true);
 
 		/// <summary>
 		/// PDF: audio file does not exist
@@ -48,6 +48,12 @@ namespace FileLiberator
 		public static string GetBooksDirectoryFilename(this AudioFileStorage _, LibraryBook libraryBook, string extension)
 			=> Templates.File.GetFilename(libraryBook.ToDto(), AudibleFileStorage.BooksDirectory, extension);
 		
+		/// <summary>
+		/// PDF: audio file does not exist
+		/// </summary>
+		public static string GetBooksDirectoryFilename(this AudioFileStorage _, LibraryBookDto dto, string extension)
+			=> Templates.File.GetFilename(dto, AudibleFileStorage.BooksDirectory, extension);
+
 		/// <summary>
 		/// PDF: audio file already exists
 		/// </summary>

Source/FileLiberator/DownloadDecryptBook.cs

@@ -47,13 +47,18 @@ namespace FileLiberator
                 if (libraryBook.Book.Audio_Exists())
                     return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
 
+                downloadValidation(libraryBook);
+				var api = await libraryBook.GetApiAsync();
+                var config = Configuration.Instance;
+				using var downloadOptions = await DownloadOptions.InitiateDownloadAsync(api, config, libraryBook);
+
                 bool success = false;
                 try
                 {
                     FilePathCache.Inserted += FilePathCache_Inserted;
                     FilePathCache.Removed += FilePathCache_Removed;
 
-                    success = await downloadAudiobookAsync(libraryBook);
+                    success = await downloadAudiobookAsync(api, config, downloadOptions);
                 }
                 finally
                 {
@@ -78,12 +83,12 @@ namespace FileLiberator
                 var finalStorageDir = getDestinationDirectory(libraryBook);
 
                 var moveFilesTask = Task.Run(() => moveFilesToBooksDir(libraryBook, entries));
-                Task[] finalTasks = new[]
+                Task[] finalTasks =
-                {
+                [
-                    Task.Run(() => downloadCoverArt(libraryBook)),
+                    Task.Run(() => downloadCoverArt(downloadOptions)),
                     moveFilesTask,
                     Task.Run(() => WindowsDirectory.SetCoverAsFolderIcon(libraryBook.Book.PictureId, finalStorageDir))
-                };
+                ];
 
 				try
                 {
@@ -116,16 +121,9 @@ namespace FileLiberator
             }
         }
 
-        private async Task<bool> downloadAudiobookAsync(LibraryBook libraryBook)
+        private async Task<bool> downloadAudiobookAsync(AudibleApi.Api api, Configuration config, DownloadOptions dlOptions)
         {
-            var config = Configuration.Instance;
+			var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(dlOptions.LibraryBookDto, dlOptions.OutputFormat.ToString().ToLower());
-
-            downloadValidation(libraryBook);
-
-            var api = await libraryBook.GetApiAsync();
-
-            using var dlOptions = await DownloadOptions.InitiateDownloadAsync(api, libraryBook, config);
-            var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(libraryBook, dlOptions.OutputFormat.ToString().ToLower());
             var cacheDir = AudibleFileStorage.DownloadsInProgressDirectory;
 
             if (dlOptions.DrmType is not DrmType.Adrm and not DrmType.Widevine)
@@ -149,7 +147,7 @@ namespace FileLiberator
             abDownloader.RetrievedAuthors += OnAuthorsDiscovered;
             abDownloader.RetrievedNarrators += OnNarratorsDiscovered;
             abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
-            abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
+            abDownloader.FileCreated += (_, path) => OnFileCreated(dlOptions.LibraryBook, path);
 
             // REAL WORK DONE HERE
             var success = await abDownloader.RunAsync();
@@ -158,12 +156,12 @@ namespace FileLiberator
             {
                 var metadataFile = LibationFileManager.Templates.Templates.File.GetFilename(dlOptions.LibraryBookDto, Path.GetDirectoryName(outFileName), ".metadata.json");
 
-                var item = await api.GetCatalogProductAsync(libraryBook.Book.AudibleProductId, AudibleApi.CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
+                var item = await api.GetCatalogProductAsync(dlOptions.LibraryBook.Book.AudibleProductId, AudibleApi.CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
 				item.SourceJson.Add(nameof(ContentMetadata.ChapterInfo), Newtonsoft.Json.Linq.JObject.FromObject(dlOptions.ContentMetadata.ChapterInfo));
 				item.SourceJson.Add(nameof(ContentMetadata.ContentReference), Newtonsoft.Json.Linq.JObject.FromObject(dlOptions.ContentMetadata.ContentReference));
 
                 File.WriteAllText(metadataFile, item.SourceJson.ToString());
-                OnFileCreated(libraryBook, metadataFile);
+                OnFileCreated(dlOptions.LibraryBook, metadataFile);
             }
 			return success;
 		}
@@ -280,7 +278,7 @@ namespace FileLiberator
 		private static FilePathCache.CacheEntry getFirstAudioFile(IEnumerable<FilePathCache.CacheEntry> entries)
             => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
 
-		private static void downloadCoverArt(LibraryBook libraryBook)
+		private static void downloadCoverArt(DownloadOptions options)
         {
 			if (!Configuration.Instance.DownloadCoverArt) return;
 
@@ -288,24 +286,24 @@ namespace FileLiberator
 
             try
             {
-                var destinationDir = getDestinationDirectory(libraryBook);
+                var destinationDir = getDestinationDirectory(options.LibraryBook);
-                coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(libraryBook, ".jpg");
+                coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(options.LibraryBookDto, ".jpg");
                 coverPath = Path.Combine(destinationDir, Path.GetFileName(coverPath));
 
                 if (File.Exists(coverPath))
                     FileUtility.SaferDelete(coverPath);
 
-                var picBytes = PictureStorage.GetPictureSynchronously(new(libraryBook.Book.PictureLarge ?? libraryBook.Book.PictureId, PictureSize.Native));
+                var picBytes = PictureStorage.GetPictureSynchronously(new(options.LibraryBook.Book.PictureLarge ?? options.LibraryBook.Book.PictureId, PictureSize.Native));
                 if (picBytes.Length > 0)
                 {
                     File.WriteAllBytes(coverPath, picBytes);
-                    SetFileTime(libraryBook, coverPath);
+                    SetFileTime(options.LibraryBook, coverPath);
                 }
             }
             catch (Exception ex)
             {
                 //Failure to download cover art should not be considered a failure to download the book
-                Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {libraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
+                Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {options.LibraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
             }
         }
     }

Source/FileLiberator/DownloadOptions.Factory.cs

@@ -10,6 +10,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net.Http;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 #nullable enable
@@ -23,7 +24,7 @@ public partial class DownloadOptions
 	/// <summary>
 	/// Initiate an audiobook download from the audible api.
 	/// </summary>
-	public static async Task<DownloadOptions> InitiateDownloadAsync(Api api, LibraryBook libraryBook, Configuration config)
+	public static async Task<DownloadOptions> InitiateDownloadAsync(Api api, Configuration config, LibraryBook libraryBook)
 	{
 		var license = await ChooseContent(api, libraryBook, config);
 		var options = BuildDownloadOptions(libraryBook, config, license);
@@ -33,42 +34,40 @@ public partial class DownloadOptions
 
 	private static async Task<ContentLicense> ChooseContent(Api api, LibraryBook libraryBook, Configuration config)
 	{
-		var cdm = await Cdm.GetCdmAsync();
-
 		var dlQuality = config.FileDownloadQuality == Configuration.DownloadQuality.Normal ? DownloadQuality.Normal : DownloadQuality.High;
 
-		ContentLicense? contentLic = null;
+		if (!config.UseWidevine || await Cdm.GetCdmAsync() is not Cdm cdm)
-		ContentLicense? fallback = null;
+			return await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
+
+		ContentLicense? contentLic = null, fallback = null;
 
-		if (cdm is null)
-		{
-			//Doesn't matter what the user chose. We can't get a CDM so we must fall back to AAX(C)
-			contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
-		}
-		else
-		{
-			var spatial = config.FileDownloadQuality is Configuration.DownloadQuality.Spatial;
 		try
 		{
+			//try to request a widevine content license using the user's spatial audio settings
 			var codecChoice = config.SpatialAudioCodec switch
 			{
 				Configuration.SpatialCodec.EC_3 => Ec3Codec,
 				Configuration.SpatialCodec.AC_4 => Ac4Codec,
 				_ => throw new NotSupportedException($"Unknown value for {nameof(config.SpatialAudioCodec)}")
 			};
-				contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality, ChapterTitlesType.Tree, DrmType.Widevine, spatial, codecChoice);
+
+			contentLic
+				= await api.GetDownloadLicenseAsync(
+					libraryBook.Book.AudibleProductId,
+					dlQuality,
+					ChapterTitlesType.Tree,
+					DrmType.Widevine,
+					config.RequestSpatial,
+					codecChoice);
 		}
 		catch (Exception ex)
 		{
 			Serilog.Log.Logger.Error(ex, "Failed to request a Widevine license.");
+			//We failed to get a widevine license, so fall back to AAX(C)
+			return await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
 		}
 
-			if (contentLic is null)
+		if (!contentLic.ContentMetadata.ContentReference.IsSpatial && contentLic.DrmType != DrmType.Adrm)
-			{
-				//We failed to get a widevine license, so fall back to AAX(C)
-				contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
-			}
-			else if (!contentLic.ContentMetadata.ContentReference.IsSpatial && contentLic.DrmType != DrmType.Adrm)
 		{
 			/*
 			We got a widevine license and we have a Cdm, but we still need to decide if we WANT the file
@@ -86,8 +85,8 @@ public partial class DownloadOptions
 
 			To decide which file we want, use this simple rule: if files are different codecs and
 			Widevine is significantly larger, use Widevine. Otherwise use ADRM.
-
 			*/
+
 			fallback = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
 
 			var wvCr = contentLic.ContentMetadata.ContentReference;
@@ -100,14 +99,13 @@ public partial class DownloadOptions
 				contentLic = fallback;
 			}
 		}		
-		}
 
-		if (contentLic.DrmType == DrmType.Widevine && cdm is not null)
+		if (contentLic.DrmType == DrmType.Widevine)
 		{
 			try
 			{
 				using var client = new HttpClient();
-				var mpdResponse = await client.GetAsync(contentLic.LicenseResponse);
+				using var mpdResponse = await client.GetAsync(contentLic.LicenseResponse);
 				var dash = new MpegDash(mpdResponse.Content.ReadAsStream());
 
 				if (!dash.TryGetUri(new Uri(contentLic.LicenseResponse), out var contentUri))
@@ -124,7 +122,6 @@ public partial class DownloadOptions
 					Key = Convert.ToHexStringLower(keys[0].Kid.ToByteArray()),
 					Iv = Convert.ToHexStringLower(keys[0].Key)
 				};
-
 			}
 			catch
 			{
@@ -160,9 +157,6 @@ public partial class DownloadOptions
 			: contentLic.DrmType is DrmType.Adrm && contentLic.Voucher?.Key.Length == 32 && contentLic.Voucher?.Iv.Length == 32 ? AAXClean.FileType.Aaxc
 			: null;
 
-		//Set the requested AudioFormat for use in file naming templates
-		libraryBook.Book.AudioFormat = AudioFormat.FromString(contentLic.ContentMetadata.ContentReference.ContentFormat);
-
 		var dlOptions = new DownloadOptions(config, libraryBook, contentLic.ContentMetadata.ContentUrl?.OfflineUrl)
 		{
 			AudibleKey = contentLic.Voucher?.Key,
@@ -176,6 +170,14 @@ public partial class DownloadOptions
 			RuntimeLength = TimeSpan.FromMilliseconds(contentLic.ContentMetadata.ChapterInfo.RuntimeLengthMs),
 		};
 
+		dlOptions.LibraryBookDto.Codec = contentLic.ContentMetadata.ContentReference.Codec;
+		if (TryGetAudioInfo(contentLic.ContentMetadata.ContentUrl, out int? bitrate, out int? sampleRate, out int? channels))
+		{
+			dlOptions.LibraryBookDto.BitRate = bitrate;
+			dlOptions.LibraryBookDto.SampleRate = sampleRate;
+			dlOptions.LibraryBookDto.Channels = channels;
+		}
+
 		var titleConcat = config.CombineNestedChapterTitles ? ": " : null;
 		var chapters
 			= flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters, titleConcat)
@@ -202,6 +204,43 @@ public partial class DownloadOptions
 		return dlOptions;
 	}
 
+	/// <summary>
+	/// The most reliable way to get these audio file properties is from the filename itself.
+	/// Using AAXClean to read the metadata works well for everything except AC-4 bitrate.
+	/// </summary>
+	private static bool TryGetAudioInfo(ContentUrl? contentUrl, out int? bitrate, out int? sampleRate, out int? channels)
+	{
+		bitrate = sampleRate = channels = null;
+
+		if (contentUrl?.OfflineUrl is not string url || !Uri.TryCreate(url, default, out var uri))
+			return false;
+
+		var file = Path.GetFileName(uri.LocalPath);
+
+		var match = AdrmAudioProperties().Match(file);
+		if (match.Success)
+		{
+			bitrate = int.Parse(match.Groups[1].Value);
+			sampleRate = int.Parse(match.Groups[2].Value);
+			channels = int.Parse(match.Groups[3].Value);
+			return true;
+		}
+		else if ((match = WidevineAudioProperties().Match(file)).Success)
+		{
+			bitrate = int.Parse(match.Groups[2].Value);
+			sampleRate = int.Parse(match.Groups[1].Value) * 1000;
+			channels = match.Groups[3].Value switch
+			{
+				"ec3" => 6,
+				"ac4" => 3,
+				_ => null
+			};
+			return true;
+		}
+
+		return false;
+	}
+
 	public static LameConfig GetLameOptions(Configuration config)
 	{
 		LameConfig lameConfig = new()
@@ -359,4 +398,9 @@ public partial class DownloadOptions
 
 	static double RelativePercentDifference(long num1, long num2)
 		=> Math.Abs(num1 - num2) / (double)(num1 + num2);
+
+	[GeneratedRegex(@".+_(\d+)_(\d+)-(\w+).mp4", RegexOptions.Singleline | RegexOptions.IgnoreCase)]
+	private static partial Regex WidevineAudioProperties();
+	[GeneratedRegex(@".+_lc_(\d+)_(\d+)_(\d+).aax", RegexOptions.Singleline | RegexOptions.IgnoreCase)]
+	private static partial Regex AdrmAudioProperties();
 }

Source/FileLiberator/UtilityExtensions.cs

@@ -55,9 +55,6 @@ namespace FileLiberator
 				IsPodcastParent = libraryBook.Book.IsEpisodeParent(),
 				IsPodcast = libraryBook.Book.IsEpisodeChild() || libraryBook.Book.IsEpisodeParent(),
 
-				BitRate = libraryBook.Book.AudioFormat.Bitrate,
-				SampleRate = libraryBook.Book.AudioFormat.SampleRate,
-				Channels = libraryBook.Book.AudioFormat.Channels,
 				Language = libraryBook.Book.Language
 			};
 		}

Source/LibationAvalonia/Controls/Settings/Audio.axaml

@@ -43,14 +43,40 @@
 				<controls:WheelComboBox
 					Margin="5,0,0,0"
 					Grid.Column="1"
-					SelectionChanged="Quality_SelectionChanged"
 					ItemsSource="{CompiledBinding DownloadQualities}"
 					SelectedItem="{CompiledBinding FileDownloadQuality}"/>
 			</Grid>
 
-			<Grid ColumnDefinitions="*,Auto" Margin="0,5,0,0"
+
-				  IsEnabled="{CompiledBinding SpatialSelected}"
+			<Grid ColumnDefinitions="*,*">
+
+				<CheckBox
+					IsChecked="{CompiledBinding UseWidevine, Mode=TwoWay}"
+					IsCheckedChanged="UseWidevine_IsCheckedChanged"
+					ToolTip.Tip="{CompiledBinding UseWidevineTip}">
+					<TextBlock Text="{CompiledBinding UseWidevineText}" />
+				</CheckBox>
+				
+				<CheckBox
+					Grid.Column="1"
+					HorizontalAlignment="Right"
+					ToolTip.Tip="{CompiledBinding RequestSpatialTip}"
+					IsEnabled="{CompiledBinding UseWidevine}"
+					IsChecked="{CompiledBinding RequestSpatial, Mode=TwoWay}">
+					<TextBlock Text="{CompiledBinding RequestSpatialText}" />
+				</CheckBox>
+			</Grid>
+
+			<Grid ColumnDefinitions="*,Auto"
 				  ToolTip.Tip="{CompiledBinding SpatialAudioCodecTip}">
+				<Grid.IsEnabled>
+					<MultiBinding Converter="{x:Static BoolConverters.And}">
+						<MultiBinding.Bindings>
+							<CompiledBinding Path="UseWidevine"/>
+							<CompiledBinding Path="RequestSpatial"/>
+						</MultiBinding.Bindings>
+					</MultiBinding>
+				</Grid.IsEnabled>
 				
 				<TextBlock
 					VerticalAlignment="Center"
@@ -63,6 +89,11 @@
 					SelectedItem="{CompiledBinding SpatialAudioCodec}"/>
 			</Grid>
 			
+			
+			
+			
+			
+
 			<CheckBox IsChecked="{CompiledBinding CreateCueSheet, Mode=TwoWay}">
 				<TextBlock Text="{CompiledBinding CreateCueSheetText}" />
 			</CheckBox>

Source/LibationAvalonia/Controls/Settings/Audio.axaml.cs

@@ -22,21 +22,21 @@ namespace LibationAvalonia.Controls.Settings
 			}
 		}
 
-
+		private async void UseWidevine_IsCheckedChanged(object sender, Avalonia.Interactivity.RoutedEventArgs e)
-		public async void Quality_SelectionChanged(object sender, SelectionChangedEventArgs e)
 		{
-			if (_viewModel.SpatialSelected)
+			if (sender is CheckBox cbox && cbox.IsChecked is true)
 			{
 				using var accounts = AudibleApiStorage.GetAccountsSettingsPersister();
 
 				if (!accounts.AccountsSettings.Accounts.Any(a => a.IdentityTokens.DeviceType == AudibleApi.Resources.DeviceType))
 				{
-					await MessageBox.Show(VisualRoot as Window,
+					if (VisualRoot is Window parent)
-						"Your must remove account(s) from Libation and then re-add them to enable spatial audiobook downloads.",
+						await MessageBox.Show(parent,
-						"Spatial Audio Unavailable",
+						"Your must remove account(s) from Libation and then re-add them to enable widwvine content.",
+						"Widevine Content Unavailable",
 						MessageBoxButtons.OK);
 
-					_viewModel.FileDownloadQuality = _viewModel.DownloadQualities[1];
+					_viewModel.UseWidevine = false;
 				}
 			}
 		}

Source/LibationAvalonia/Dialogs/BookDetailsDialog.axaml.cs

@@ -114,7 +114,6 @@ Title: {title}
 Author(s): {Book.AuthorNames()}
 Narrator(s): {Book.NarratorNames()}
 Length: {(Book.LengthInMinutes == 0 ? "" : $"{Book.LengthInMinutes / 60} hr {Book.LengthInMinutes % 60} min")}
-Audio Bitrate: {Book.AudioFormat}
 Category: {string.Join(", ", Book.LowestCategoryNames())}
 Purchase Date: {libraryBook.DateAdded:d}
 Language: {Book.Language}

Source/LibationAvalonia/ViewModels/Settings/AudioSettingsVM.cs

@@ -67,6 +67,8 @@ namespace LibationAvalonia.ViewModels.Settings
 			FileDownloadQuality = DownloadQualities.SingleOrDefault(s => s.Value == config.FileDownloadQuality) ?? DownloadQualities[0];
 			SelectedSampleRate = SampleRates.SingleOrDefault(s => s.Value == config.MaxSampleRate) ?? SampleRates[0];
 			SelectedEncoderQuality = config.LameEncoderQuality;
+			UseWidevine = config.UseWidevine;
+			RequestSpatial = config.RequestSpatial;
 		}
 
 		public void SaveSettings(Configuration config)
@@ -96,12 +98,13 @@ namespace LibationAvalonia.ViewModels.Settings
 			config.MaxSampleRate = SelectedSampleRate?.Value ?? config.MaxSampleRate;
 			config.FileDownloadQuality = FileDownloadQuality?.Value ?? config.FileDownloadQuality;
 			config.SpatialAudioCodec = SpatialAudioCodec?.Value ?? config.SpatialAudioCodec;
+			config.UseWidevine = UseWidevine;
+			config.RequestSpatial = RequestSpatial;
 		}
 
 		public AvaloniaList<EnumDisplay<Configuration.DownloadQuality>> DownloadQualities { get; } = new([
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Normal),
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.High),
-					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Spatial, "Spatial (if available)"),
 				]);
 		public AvaloniaList<EnumDisplay<Configuration.SpatialCodec>> SpatialAudioCodecs { get; } = new([
 					new EnumDisplay<Configuration.SpatialCodec>(Configuration.SpatialCodec.EC_3, "Dolby Digital Plus (E-AC-3)"),
@@ -109,6 +112,10 @@ namespace LibationAvalonia.ViewModels.Settings
 				]);
 		public AvaloniaList<Configuration.ClipBookmarkFormat> ClipBookmarkFormats { get; } = new(Enum<Configuration.ClipBookmarkFormat>.GetValues());
 		public string FileDownloadQualityText { get; } = Configuration.GetDescription(nameof(Configuration.FileDownloadQuality));
+		public string UseWidevineText { get; } = Configuration.GetDescription(nameof(Configuration.UseWidevine));
+		public string UseWidevineTip { get; } = Configuration.GetHelpText(nameof(Configuration.UseWidevine));
+		public string RequestSpatialText { get; } = Configuration.GetDescription(nameof(Configuration.RequestSpatial));
+		public string RequestSpatialTip { get; } = Configuration.GetHelpText(nameof(Configuration.RequestSpatial));
 		public string SpatialAudioCodecText { get; } = Configuration.GetDescription(nameof(Configuration.SpatialAudioCodec));
 		public string SpatialAudioCodecTip { get; } = Configuration.GetHelpText(nameof(Configuration.SpatialAudioCodec));
 		public string CreateCueSheetText { get; } = Configuration.GetDescription(nameof(Configuration.CreateCueSheet));
@@ -133,19 +140,13 @@ namespace LibationAvalonia.ViewModels.Settings
 		public string RetainAaxFileTip => Configuration.GetHelpText(nameof(RetainAaxFile));
 		public bool DownloadClipsBookmarks { get => _downloadClipsBookmarks; set => this.RaiseAndSetIfChanged(ref _downloadClipsBookmarks, value); }
 
-		public bool SpatialSelected { get; private set; }
 
-		private EnumDisplay<Configuration.DownloadQuality>? _fileDownloadQuality;
+		private bool _useWidevine;
-		public EnumDisplay<Configuration.DownloadQuality> FileDownloadQuality
+		private bool _requestSpatial;
-		{
+		public bool UseWidevine { get => _useWidevine; set => this.RaiseAndSetIfChanged(ref _useWidevine, value); }
-			get => _fileDownloadQuality ?? DownloadQualities[0];
+		public bool RequestSpatial { get => _requestSpatial; set => this.RaiseAndSetIfChanged(ref _requestSpatial, value); }
-			set
+
-			{
+		public EnumDisplay<Configuration.DownloadQuality> FileDownloadQuality { get; set; }
-				SpatialSelected = value?.Value == Configuration.DownloadQuality.Spatial;
-				this.RaiseAndSetIfChanged(ref _fileDownloadQuality, value);
-				this.RaisePropertyChanged(nameof(SpatialSelected));
-			}
-		}
 		public EnumDisplay<Configuration.SpatialCodec> SpatialAudioCodec { get; set; }
 		public Configuration.ClipBookmarkFormat ClipBookmarkFormat { get; set; }
 		public bool MergeOpeningAndEndCredits { get; set; }

Source/LibationFileManager/Configuration.HelpText.cs

@@ -89,6 +89,24 @@ namespace LibationFileManager
 
                 AC-4 cannot be converted to MP3.
                 """ },
+            {nameof(UseWidevine), """
+                Some audiobooks are only delivered in the highest
+                available quality with special, third-party content
+                protection. Enabling this option will make Libation
+                request audiobooks with Widevine DRM, which may
+                yield higher quality audiobook files. If they are
+                higher quality, however, they will also be encoded
+                with a somewhat uncommon codec (xHE-AAC USAC)
+                which you may have difficulty playing.
+
+                This must be enable to download spatial audiobooks.
+                """ },
+            {nameof(RequestSpatial), """
+                If selected, Libation will request audiobooks in the
+                Dolby Atmos 'Spatial Audio' format. Audiobooks which
+                don't have a spatial audio version will be download
+                as usual based on your other file quality settings.
+                """ },
         }
         .AsReadOnly();
 

Source/LibationFileManager/Configuration.PersistentSettings.cs

@@ -246,8 +246,7 @@ namespace LibationFileManager
 		public enum DownloadQuality
 		{
 			High,
-			Normal,
+			Normal
-			Spatial
 		}
 
 		[JsonConverter(typeof(StringEnumConverter))]
@@ -257,6 +256,12 @@ namespace LibationFileManager
 			AC_4
 		}
 
+		[Description("Use widevine DRM")]
+		public bool UseWidevine { get => GetNonString(defaultValue: true); set => SetNonString(value); }
+
+		[Description("Request Spatial Audio")]
+		public bool RequestSpatial { get => GetNonString(defaultValue: true); set => SetNonString(value); }
+
 		[Description("Spatial audio codec:")]
 		public SpatialCodec SpatialAudioCodec { get => GetNonString(defaultValue: SpatialCodec.EC_3); set => SetNonString(value); }
 

Source/LibationFileManager/Templates/LibraryBookDto.cs

@@ -27,9 +27,10 @@ public class BookDto
 	public bool IsPodcastParent { get; set; }
 	public bool IsPodcast { get; set; }
 
-	public int BitRate { get; set; }
+	public int? BitRate { get; set; }
-	public int SampleRate { get; set; }
+	public int? SampleRate { get; set; }
-	public int Channels { get; set; }
+	public int? Channels { get; set; }
+	public string? Codec { get; set; }
 	public DateTime FileDate { get; set; } = DateTime.Now;
 	public DateTime? DatePublished { get; set; }
 	public string? Language { get; set; }

Source/LibationFileManager/Templates/TemplateTags.cs

@@ -36,9 +36,10 @@ namespace LibationFileManager.Templates
 		public static TemplateTags Series { get; } = new TemplateTags("series", "All series to which the book belongs (if any)");
 		public static TemplateTags FirstSeries { get; } = new TemplateTags("first series", "First series");
 		public static TemplateTags SeriesNumber { get; } = new TemplateTags("series#", "Number order in series (alias for <first series[{#}]>");
-		public static TemplateTags Bitrate { get; } = new TemplateTags("bitrate", "File's orig. bitrate");
+		public static TemplateTags Bitrate { get; } = new TemplateTags("bitrate", "Audiobook's source bitrate");
-		public static TemplateTags SampleRate { get; } = new TemplateTags("samplerate", "File's orig. sample rate");
+		public static TemplateTags SampleRate { get; } = new TemplateTags("samplerate", "Audiobook's source sample rate");
-		public static TemplateTags Channels { get; } = new TemplateTags("channels", "Number of audio channels");
+		public static TemplateTags Channels { get; } = new TemplateTags("channels", "Audiobook's source audio channel count");
+		public static TemplateTags Codec { get; } = new TemplateTags("codec", "Audiobook's source codec");
 		public static TemplateTags Account { get; } = new TemplateTags("account", "Audible account of this book");
 		public static TemplateTags AccountNickname { get; } = new TemplateTags("account nickname", "Audible account nickname of this book");
 		public static TemplateTags Locale { get; } = new("locale", "Region/country");

Source/LibationFileManager/Templates/Templates.cs

@@ -271,9 +271,6 @@ namespace LibationFileManager.Templates
 			{ TemplateTags.Language, lb => lb.Language },
 			//Don't allow formatting of LanguageShort
 			{ TemplateTags.LanguageShort, lb =>lb.Language, getLanguageShort },
-			{ TemplateTags.Bitrate, lb => (int?)(lb.IsPodcastParent ? null : lb.BitRate) },
-			{ TemplateTags.SampleRate, lb => (int?)(lb.IsPodcastParent ? null : lb.SampleRate) },
-			{ TemplateTags.Channels, lb => (int?)(lb.IsPodcastParent ? null : lb.Channels) },
 			{ TemplateTags.Account, lb => lb.Account },
 			{ TemplateTags.AccountNickname, lb => lb.AccountNickname },
 			{ TemplateTags.Locale, lb => lb.Locale },
@@ -283,6 +280,15 @@ namespace LibationFileManager.Templates
 			{ TemplateTags.FileDate, lb => lb.FileDate },
 		};
 
+		private static readonly PropertyTagCollection<LibraryBookDto> audioFilePropertyTags =
+			new(caseSensative: true, StringFormatter, IntegerFormatter)
+		{
+			{ TemplateTags.Bitrate, lb => lb.BitRate },
+			{ TemplateTags.SampleRate, lb => lb.SampleRate },
+			{ TemplateTags.Channels, lb => lb.Channels },
+			{ TemplateTags.Codec, lb => lb.Codec },
+		};
+
 		private static readonly List<TagCollection> chapterPropertyTags = new()
 		{
 			new PropertyTagCollection<LibraryBookDto>(caseSensative: true, StringFormatter)
@@ -376,8 +382,7 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "Folder Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.FolderTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title short> [<id>]";
-			public static IEnumerable<TagCollection> TagCollections
+			public static IEnumerable<TagCollection> TagCollections { get; } = [filePropertyTags, conditionalTags, folderConditionalTags];
-				=> new TagCollection[] { filePropertyTags, conditionalTags, folderConditionalTags };
 
 			public override IEnumerable<string> Errors
 				=> TemplateText?.Length >= 2 && Path.IsPathFullyQualified(TemplateText) ? base.Errors.Append(ERROR_FULL_PATH_IS_INVALID) : base.Errors;
@@ -396,7 +401,7 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "File Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.FileTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title> [<id>]";
-			public static IEnumerable<TagCollection> TagCollections { get; } = new TagCollection[] { filePropertyTags, conditionalTags };
+			public static IEnumerable<TagCollection> TagCollections { get; } = [filePropertyTags, audioFilePropertyTags, conditionalTags];
 		}
 
 		public class ChapterFileTemplate : Templates, ITemplate
@@ -404,7 +409,8 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "Chapter File Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.ChapterFileTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title> [<id>] - <ch# 0> - <ch title>";
-			public static IEnumerable<TagCollection> TagCollections { get; } = chapterPropertyTags.Append(filePropertyTags).Append(conditionalTags);
+			public static IEnumerable<TagCollection> TagCollections { get; }
+				= chapterPropertyTags.Append(filePropertyTags).Append(audioFilePropertyTags).Append(conditionalTags);
 
 			public override IEnumerable<string> Warnings
 				=> NamingTemplate.TagsInUse.Any(t => t.TagName.In(TemplateTags.ChNumber.TagName, TemplateTags.ChNumber0.TagName))

Source/LibationWinForms/Dialogs/BookDetailsDialog.cs

@@ -49,7 +49,6 @@ Title: {title}
 Author(s): {Book.AuthorNames()}
 Narrator(s): {Book.NarratorNames()}
 Length: {(Book.LengthInMinutes == 0 ? "" : $"{Book.LengthInMinutes / 60} hr {Book.LengthInMinutes % 60} min")}
-Audio Bitrate: {Book.AudioFormat}
 Category: {string.Join(", ", Book.LowestCategoryNames())}
 Purchase Date: {_libraryBook.DateAdded:d}
 Language: {Book.Language}

Source/LibationWinForms/Dialogs/SettingsDialog.AudioSettings.cs

@@ -23,6 +23,8 @@ namespace LibationWinForms.Dialogs
 			this.stripAudibleBrandingCbox.Text = desc(nameof(config.StripAudibleBrandAudio));
 			this.stripUnabridgedCbox.Text = desc(nameof(config.StripUnabridged));
 			this.moveMoovAtomCbox.Text = desc(nameof(config.MoveMoovToBeginning));
+			this.useWidevineCbox.Text = desc(nameof(config.UseWidevine));
+			this.requestSpatialCbox.Text = desc(nameof(config.RequestSpatial));
 			this.spatialCodecLbl.Text = desc(nameof(config.SpatialAudioCodec));
 
 			toolTip.SetToolTip(combineNestedChapterTitlesCbox, Configuration.GetHelpText(nameof(config.CombineNestedChapterTitles)));
@@ -34,6 +36,8 @@ namespace LibationWinForms.Dialogs
 			toolTip.SetToolTip(mergeOpeningEndCreditsCbox, Configuration.GetHelpText(nameof(config.MergeOpeningAndEndCredits)));
 			toolTip.SetToolTip(retainAaxFileCbox, Configuration.GetHelpText(nameof(config.RetainAaxFile)));
 			toolTip.SetToolTip(stripAudibleBrandingCbox, Configuration.GetHelpText(nameof(config.StripAudibleBrandAudio)));
+			toolTip.SetToolTip(useWidevineCbox, Configuration.GetHelpText(nameof(config.UseWidevine)));
+			toolTip.SetToolTip(requestSpatialCbox, Configuration.GetHelpText(nameof(config.RequestSpatial)));
 			toolTip.SetToolTip(spatialCodecLbl, Configuration.GetHelpText(nameof(config.SpatialAudioCodec)));
 			toolTip.SetToolTip(spatialAudioCodecCb, Configuration.GetHelpText(nameof(config.SpatialAudioCodec)));
 
@@ -41,7 +45,6 @@ namespace LibationWinForms.Dialogs
 				[
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Normal),
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.High),
-					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Spatial, "Spatial (if available)"),
 				]);
 
 			spatialAudioCodecCb.Items.AddRange(
@@ -76,6 +79,8 @@ namespace LibationWinForms.Dialogs
 			downloadClipsBookmarksCbox.Checked = config.DownloadClipsBookmarks;
 			fileDownloadQualityCb.SelectedItem = config.FileDownloadQuality;
 			spatialAudioCodecCb.SelectedItem = config.SpatialAudioCodec;
+			useWidevineCbox.Checked = config.UseWidevine;
+			requestSpatialCbox.Checked = config.RequestSpatial;
 
 			clipsBookmarksFormatCb.SelectedItem = config.ClipsBookmarksFileFormat;
 			retainAaxFileCbox.Checked = config.RetainAaxFile;
@@ -118,6 +123,8 @@ namespace LibationWinForms.Dialogs
 			config.DownloadCoverArt = downloadCoverArtCbox.Checked;
 			config.DownloadClipsBookmarks = downloadClipsBookmarksCbox.Checked;
 			config.FileDownloadQuality = ((EnumDisplay<Configuration.DownloadQuality>)fileDownloadQualityCb.SelectedItem).Value;
+			config.UseWidevine = useWidevineCbox.Checked;
+			config.RequestSpatial = requestSpatialCbox.Checked;
 			config.SpatialAudioCodec = ((EnumDisplay<Configuration.SpatialCodec>)spatialAudioCodecCb.SelectedItem).Value;
 			config.ClipsBookmarksFileFormat = (Configuration.ClipBookmarkFormat)clipsBookmarksFormatCb.SelectedItem;
 			config.RetainAaxFile = retainAaxFileCbox.Checked;
@@ -140,7 +147,6 @@ namespace LibationWinForms.Dialogs
 			config.ChapterTitleTemplate = chapterTitleTemplateTb.Text;
 		}
 
-
 		private void downloadClipsBookmarksCbox_CheckedChanged(object sender, EventArgs e)
 		{
 			clipsBookmarksFormatCb.Enabled = downloadClipsBookmarksCbox.Checked;
@@ -190,27 +196,28 @@ namespace LibationWinForms.Dialogs
 			}
 		}
 
-		private void fileDownloadQualityCb_SelectedIndexChanged(object sender, EventArgs e)
-		{
-			var selectedSpatial = fileDownloadQualityCb.SelectedItem.Equals(Configuration.DownloadQuality.Spatial);
 
-			if (selectedSpatial)
+
+		private void useWidevineCbox_CheckedChanged(object sender, EventArgs e)
+		{
+			if (useWidevineCbox.Checked)
 			{
 				using var accounts = AudibleApiStorage.GetAccountsSettingsPersister();
 
 				if (!accounts.AccountsSettings.Accounts.Any(a => a.IdentityTokens.DeviceType == AudibleApi.Resources.DeviceType))
 				{
 					MessageBox.Show(this,
-						"Your must remove account(s) from Libation and then re-add them to enable spatial audiobook downloads.",
+						"Your must remove account(s) from Libation and then re-add them to enable widwvine content.",
-						"Spatial Audio Unavailable",
+						"Widevine Content Unavailable",
 						MessageBoxButtons.OK);
 
-					fileDownloadQualityCb.SelectedItem = Configuration.DownloadQuality.High;
+					useWidevineCbox.Checked = false;
 					return;
 				}
 			}
+			requestSpatialCbox.Enabled = useWidevineCbox.Checked;
+			spatialCodecLbl.Enabled = spatialAudioCodecCb.Enabled = useWidevineCbox.Checked && requestSpatialCbox.Checked;
+		}
 
-			spatialCodecLbl.Enabled = spatialAudioCodecCb.Enabled = selectedSpatial;
-		}
 	}
 }

Source/LibationWinForms/Dialogs/SettingsDialog.Designer.cs

@@ -84,6 +84,8 @@
 			folderTemplateTb = new System.Windows.Forms.TextBox();
 			folderTemplateLbl = new System.Windows.Forms.Label();
 			tab4AudioFileOptions = new System.Windows.Forms.TabPage();
+			requestSpatialCbox = new System.Windows.Forms.CheckBox();
+			useWidevineCbox = new System.Windows.Forms.CheckBox();
 			spatialAudioCodecCb = new System.Windows.Forms.ComboBox();
 			spatialCodecLbl = new System.Windows.Forms.Label();
 			moveMoovAtomCbox = new System.Windows.Forms.CheckBox();
@@ -306,7 +308,7 @@
 			allowLibationFixupCbox.AutoSize = true;
 			allowLibationFixupCbox.Checked = true;
 			allowLibationFixupCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			allowLibationFixupCbox.Location = new System.Drawing.Point(19, 205);
+			allowLibationFixupCbox.Location = new System.Drawing.Point(19, 230);
 			allowLibationFixupCbox.Name = "allowLibationFixupCbox";
 			allowLibationFixupCbox.Size = new System.Drawing.Size(162, 19);
 			allowLibationFixupCbox.TabIndex = 11;
@@ -772,6 +774,8 @@
 			// tab4AudioFileOptions
 			// 
 			tab4AudioFileOptions.AutoScroll = true;
+			tab4AudioFileOptions.Controls.Add(requestSpatialCbox);
+			tab4AudioFileOptions.Controls.Add(useWidevineCbox);
 			tab4AudioFileOptions.Controls.Add(spatialAudioCodecCb);
 			tab4AudioFileOptions.Controls.Add(spatialCodecLbl);
 			tab4AudioFileOptions.Controls.Add(moveMoovAtomCbox);
@@ -798,11 +802,38 @@
 			tab4AudioFileOptions.Text = "Audio File Options";
 			tab4AudioFileOptions.UseVisualStyleBackColor = true;
 			// 
+			// requestSpatialCbox
+			// 
+			requestSpatialCbox.AutoSize = true;
+			requestSpatialCbox.CheckAlign = System.Drawing.ContentAlignment.MiddleRight;
+			requestSpatialCbox.Checked = true;
+			requestSpatialCbox.CheckState = System.Windows.Forms.CheckState.Checked;
+			requestSpatialCbox.Location = new System.Drawing.Point(284, 35);
+			requestSpatialCbox.Name = "requestSpatialCbox";
+			requestSpatialCbox.Size = new System.Drawing.Size(138, 19);
+			requestSpatialCbox.TabIndex = 29;
+			requestSpatialCbox.Text = "[RequestSpatial desc]";
+			requestSpatialCbox.UseVisualStyleBackColor = true;
+			requestSpatialCbox.CheckedChanged += useWidevineCbox_CheckedChanged;
+			// 
+			// useWidevineCbox
+			// 
+			useWidevineCbox.AutoSize = true;
+			useWidevineCbox.Checked = true;
+			useWidevineCbox.CheckState = System.Windows.Forms.CheckState.Checked;
+			useWidevineCbox.Location = new System.Drawing.Point(19, 35);
+			useWidevineCbox.Name = "useWidevineCbox";
+			useWidevineCbox.Size = new System.Drawing.Size(129, 19);
+			useWidevineCbox.TabIndex = 28;
+			useWidevineCbox.Text = "[UseWidevine desc]";
+			useWidevineCbox.UseVisualStyleBackColor = true;
+			useWidevineCbox.CheckedChanged += useWidevineCbox_CheckedChanged;
+			// 
 			// spatialAudioCodecCb
 			// 
 			spatialAudioCodecCb.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
 			spatialAudioCodecCb.FormattingEnabled = true;
-			spatialAudioCodecCb.Location = new System.Drawing.Point(249, 35);
+			spatialAudioCodecCb.Location = new System.Drawing.Point(249, 60);
 			spatialAudioCodecCb.Margin = new System.Windows.Forms.Padding(3, 3, 5, 3);
 			spatialAudioCodecCb.Name = "spatialAudioCodecCb";
 			spatialAudioCodecCb.Size = new System.Drawing.Size(173, 23);
@@ -811,7 +842,7 @@
 			// spatialCodecLbl
 			// 
 			spatialCodecLbl.AutoSize = true;
-			spatialCodecLbl.Location = new System.Drawing.Point(19, 37);
+			spatialCodecLbl.Location = new System.Drawing.Point(19, 62);
 			spatialCodecLbl.Name = "spatialCodecLbl";
 			spatialCodecLbl.Size = new System.Drawing.Size(143, 15);
 			spatialCodecLbl.TabIndex = 24;
@@ -836,7 +867,6 @@
 			fileDownloadQualityCb.Name = "fileDownloadQualityCb";
 			fileDownloadQualityCb.Size = new System.Drawing.Size(130, 23);
 			fileDownloadQualityCb.TabIndex = 1;
-			fileDownloadQualityCb.SelectedIndexChanged += fileDownloadQualityCb_SelectedIndexChanged;
 			// 
 			// fileDownloadQualityLbl
 			// 
@@ -851,7 +881,7 @@
 			// combineNestedChapterTitlesCbox
 			// 
 			combineNestedChapterTitlesCbox.AutoSize = true;
-			combineNestedChapterTitlesCbox.Location = new System.Drawing.Point(19, 181);
+			combineNestedChapterTitlesCbox.Location = new System.Drawing.Point(19, 206);
 			combineNestedChapterTitlesCbox.Name = "combineNestedChapterTitlesCbox";
 			combineNestedChapterTitlesCbox.Size = new System.Drawing.Size(217, 19);
 			combineNestedChapterTitlesCbox.TabIndex = 10;
@@ -862,7 +892,7 @@
 			// 
 			clipsBookmarksFormatCb.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
 			clipsBookmarksFormatCb.FormattingEnabled = true;
-			clipsBookmarksFormatCb.Location = new System.Drawing.Point(285, 107);
+			clipsBookmarksFormatCb.Location = new System.Drawing.Point(285, 132);
 			clipsBookmarksFormatCb.Name = "clipsBookmarksFormatCb";
 			clipsBookmarksFormatCb.Size = new System.Drawing.Size(67, 23);
 			clipsBookmarksFormatCb.TabIndex = 6;
@@ -870,7 +900,7 @@
 			// downloadClipsBookmarksCbox
 			// 
 			downloadClipsBookmarksCbox.AutoSize = true;
-			downloadClipsBookmarksCbox.Location = new System.Drawing.Point(19, 109);
+			downloadClipsBookmarksCbox.Location = new System.Drawing.Point(19, 134);
 			downloadClipsBookmarksCbox.Name = "downloadClipsBookmarksCbox";
 			downloadClipsBookmarksCbox.Size = new System.Drawing.Size(248, 19);
 			downloadClipsBookmarksCbox.TabIndex = 5;
@@ -883,7 +913,7 @@
 			audiobookFixupsGb.Controls.Add(splitFilesByChapterCbox);
 			audiobookFixupsGb.Controls.Add(stripUnabridgedCbox);
 			audiobookFixupsGb.Controls.Add(stripAudibleBrandingCbox);
-			audiobookFixupsGb.Location = new System.Drawing.Point(6, 229);
+			audiobookFixupsGb.Location = new System.Drawing.Point(6, 254);
 			audiobookFixupsGb.Name = "audiobookFixupsGb";
 			audiobookFixupsGb.Size = new System.Drawing.Size(416, 114);
 			audiobookFixupsGb.TabIndex = 19;
@@ -1324,7 +1354,7 @@
 			// mergeOpeningEndCreditsCbox
 			// 
 			mergeOpeningEndCreditsCbox.AutoSize = true;
-			mergeOpeningEndCreditsCbox.Location = new System.Drawing.Point(19, 157);
+			mergeOpeningEndCreditsCbox.Location = new System.Drawing.Point(19, 182);
 			mergeOpeningEndCreditsCbox.Name = "mergeOpeningEndCreditsCbox";
 			mergeOpeningEndCreditsCbox.Size = new System.Drawing.Size(198, 19);
 			mergeOpeningEndCreditsCbox.TabIndex = 9;
@@ -1334,7 +1364,7 @@
 			// retainAaxFileCbox
 			// 
 			retainAaxFileCbox.AutoSize = true;
-			retainAaxFileCbox.Location = new System.Drawing.Point(19, 133);
+			retainAaxFileCbox.Location = new System.Drawing.Point(19, 158);
 			retainAaxFileCbox.Name = "retainAaxFileCbox";
 			retainAaxFileCbox.Size = new System.Drawing.Size(131, 19);
 			retainAaxFileCbox.TabIndex = 8;
@@ -1347,7 +1377,7 @@
 			downloadCoverArtCbox.AutoSize = true;
 			downloadCoverArtCbox.Checked = true;
 			downloadCoverArtCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			downloadCoverArtCbox.Location = new System.Drawing.Point(19, 85);
+			downloadCoverArtCbox.Location = new System.Drawing.Point(19, 110);
 			downloadCoverArtCbox.Name = "downloadCoverArtCbox";
 			downloadCoverArtCbox.Size = new System.Drawing.Size(162, 19);
 			downloadCoverArtCbox.TabIndex = 4;
@@ -1360,7 +1390,7 @@
 			createCueSheetCbox.AutoSize = true;
 			createCueSheetCbox.Checked = true;
 			createCueSheetCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			createCueSheetCbox.Location = new System.Drawing.Point(19, 61);
+			createCueSheetCbox.Location = new System.Drawing.Point(19, 86);
 			createCueSheetCbox.Name = "createCueSheetCbox";
 			createCueSheetCbox.Size = new System.Drawing.Size(145, 19);
 			createCueSheetCbox.TabIndex = 3;
@@ -1531,5 +1561,7 @@
 		private System.Windows.Forms.Button applyDisplaySettingsBtn;
 		private System.Windows.Forms.ComboBox spatialAudioCodecCb;
 		private System.Windows.Forms.Label spatialCodecLbl;
+		private System.Windows.Forms.CheckBox useWidevineCbox;
+		private System.Windows.Forms.CheckBox requestSpatialCbox;
 	}
 }