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124 lines
4.1 KiB
124 lines
4.1 KiB
3 years ago
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#nullable enable
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#pragma warning disable CS1591
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.MediaInfo;
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using Microsoft.Extensions.Logging;
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namespace MediaBrowser.Providers.MediaInfo
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{
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/// <summary>
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/// Uses ffmpeg to extract embedded images.
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/// </summary>
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public class EmbeddedImageProvider : IDynamicImageProvider, IHasOrder
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{
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private readonly IMediaEncoder _mediaEncoder;
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private readonly ILogger<EmbeddedImageProvider> _logger;
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public EmbeddedImageProvider(IMediaEncoder mediaEncoder, ILogger<EmbeddedImageProvider> logger)
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{
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_mediaEncoder = mediaEncoder;
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_logger = logger;
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}
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/// <inheritdoc />
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public string Name => "Embedded Image Extractor";
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/// <inheritdoc />
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// Default to after internet image providers but before Screen Grabber
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public int Order => 99;
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/// <inheritdoc />
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public IEnumerable<ImageType> GetSupportedImages(BaseItem item)
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{
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return new[] { ImageType.Primary };
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}
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/// <inheritdoc />
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public Task<DynamicImageResponse> GetImage(BaseItem item, ImageType type, CancellationToken cancellationToken)
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{
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var video = (Video)item;
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// No support for these
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if (video.IsPlaceHolder || video.VideoType == VideoType.Dvd)
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{
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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// Can't extract if we didn't find any video streams in the file
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if (!video.DefaultVideoStreamIndex.HasValue)
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{
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_logger.LogInformation("Skipping image extraction due to missing DefaultVideoStreamIndex for {Path}.", video.Path ?? string.Empty);
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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return GetEmbeddedImage(video, cancellationToken);
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}
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private async Task<DynamicImageResponse> GetEmbeddedImage(Video item, CancellationToken cancellationToken)
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{
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MediaSourceInfo mediaSource = new MediaSourceInfo
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{
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VideoType = item.VideoType,
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IsoType = item.IsoType,
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Protocol = item.PathProtocol ?? MediaProtocol.File,
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};
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var imageStreams =
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item.GetMediaStreams()
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.Where(i => i.Type == MediaStreamType.EmbeddedImage)
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.ToList();
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string extractedImagePath;
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if (imageStreams.Count == 0)
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{
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// Can't extract if we don't have any EmbeddedImage streams
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return new DynamicImageResponse { HasImage = false };
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}
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else
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{
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var imageStream = imageStreams.Find(i => (i.Comment ?? string.Empty).Contains("front", StringComparison.OrdinalIgnoreCase))
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?? imageStreams.Find(i => (i.Comment ?? string.Empty).Contains("cover", StringComparison.OrdinalIgnoreCase))
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?? imageStreams[0];
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extractedImagePath = await _mediaEncoder.ExtractVideoImage(item.Path, item.Container, mediaSource, imageStream, imageStream.Index, cancellationToken).ConfigureAwait(false);
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}
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return new DynamicImageResponse
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{
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Format = ImageFormat.Jpg,
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HasImage = true,
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Path = extractedImagePath,
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Protocol = MediaProtocol.File
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};
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}
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/// <inheritdoc />
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public bool Supports(BaseItem item)
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{
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if (item.IsShortcut)
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{
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return false;
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}
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if (!item.IsFileProtocol)
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{
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return false;
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}
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return item is Video video && !video.IsPlaceHolder && video.IsCompleteMedia;
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}
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}
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}
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