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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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2013-09-14 17:19:32 -04:00
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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 create still images from the main video.
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/// </summary>
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public class VideoImageProvider : IDynamicImageProvider, IHasOrder
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{
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private readonly IMediaEncoder _mediaEncoder;
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private readonly ILogger<VideoImageProvider> _logger;
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public VideoImageProvider(IMediaEncoder mediaEncoder, ILogger<VideoImageProvider> 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 => "Screen Grabber";
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/// <inheritdoc />
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// Make sure this comes after internet image providers
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public int Order => 100;
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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 a video stream 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 GetVideoImage(video, cancellationToken);
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}
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private async Task<DynamicImageResponse> GetVideoImage(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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// If we know the duration, grab it from 10% into the video. Otherwise just 10 seconds in.
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// Always use 10 seconds for dvd because our duration could be out of whack
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var imageOffset = item.VideoType != VideoType.Dvd && item.RunTimeTicks.HasValue &&
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item.RunTimeTicks.Value > 0
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? TimeSpan.FromTicks(item.RunTimeTicks.Value / 10)
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: TimeSpan.FromSeconds(10);
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var videoStream = item.GetMediaStreams().FirstOrDefault(i => i.Type == MediaStreamType.Video);
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string extractedImagePath = await _mediaEncoder.ExtractVideoImage(item.Path, item.Container, mediaSource, videoStream, item.Video3DFormat, imageOffset, cancellationToken).ConfigureAwait(false);
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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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