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using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.MediaInfo
{
public class VideoImageProvider : IDynamicImageProvider, IHasOrder
{
private readonly IMediaEncoder _mediaEncoder;
private readonly ILogger _logger;
private readonly IFileSystem _fileSystem;
public VideoImageProvider(IMediaEncoder mediaEncoder, ILogger logger, IFileSystem fileSystem)
{
_mediaEncoder = mediaEncoder;
_logger = logger;
_fileSystem = fileSystem;
}
public IEnumerable<ImageType> GetSupportedImages(BaseItem item)
{
return new List<ImageType> { ImageType.Primary };
}
public Task<DynamicImageResponse> GetImage(BaseItem item, ImageType type, CancellationToken cancellationToken)
{
var video = (Video)item;
// No support for this
if (video.IsPlaceHolder)
{
return Task.FromResult(new DynamicImageResponse { HasImage = false });
}
// No support for this
if (video.VideoType == VideoType.Iso || video.VideoType == VideoType.Dvd || video.VideoType == VideoType.BluRay)
{
return Task.FromResult(new DynamicImageResponse { HasImage = false });
}
// Can't extract if we didn't find a video stream in the file
if (!video.DefaultVideoStreamIndex.HasValue)
{
_logger.Info("Skipping image extraction due to missing DefaultVideoStreamIndex for {0}.", video.Path ?? string.Empty);
return Task.FromResult(new DynamicImageResponse { HasImage = false });
}
return GetVideoImage(video, cancellationToken);
}
public async Task<DynamicImageResponse> GetVideoImage(Video item, CancellationToken cancellationToken)
{
var protocol = item.PathProtocol ?? MediaProtocol.File;
var inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, item.Path, protocol, null, item.GetPlayableStreamFileNames(_mediaEncoder));
var mediaStreams =
item.GetMediaStreams();
var imageStreams =
mediaStreams
.Where(i => i.Type == MediaStreamType.EmbeddedImage)
.ToList();
var imageStream = imageStreams.FirstOrDefault(i => (i.Comment ?? string.Empty).IndexOf("front", StringComparison.OrdinalIgnoreCase) != -1) ??
imageStreams.FirstOrDefault(i => (i.Comment ?? string.Empty).IndexOf("cover", StringComparison.OrdinalIgnoreCase) != -1) ??
imageStreams.FirstOrDefault();
string extractedImagePath;
if (imageStream != null)
{
// Instead of using the raw stream index, we need to use nth video/embedded image stream
var videoIndex = -1;
foreach (var mediaStream in mediaStreams)
{
if (mediaStream.Type == MediaStreamType.Video ||
mediaStream.Type == MediaStreamType.EmbeddedImage)
{
videoIndex++;
}
if (mediaStream == imageStream)
{
break;
}
}
extractedImagePath = await _mediaEncoder.ExtractVideoImage(inputPath, item.Container, protocol, imageStream, videoIndex, cancellationToken).ConfigureAwait(false);
}
else
{
// If we know the duration, grab it from 10% into the video. Otherwise just 10 seconds in.
// Always use 10 seconds for dvd because our duration could be out of whack
var imageOffset = item.VideoType != VideoType.Dvd && item.RunTimeTicks.HasValue &&
item.RunTimeTicks.Value > 0
? TimeSpan.FromTicks(Convert.ToInt64(item.RunTimeTicks.Value * .1))
: TimeSpan.FromSeconds(10);
var videoStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
extractedImagePath = await _mediaEncoder.ExtractVideoImage(inputPath, item.Container, protocol, videoStream, item.Video3DFormat, imageOffset, cancellationToken).ConfigureAwait(false);
}
return new DynamicImageResponse
{
Format = ImageFormat.Jpg,
HasImage = true,
Path = extractedImagePath,
Protocol = MediaProtocol.File
};
}
public string Name
{
get { return "Screen Grabber"; }
}
public bool Supports(BaseItem item)
{
if (item.IsShortcut)
{
return false;
}
if (!item.IsFileProtocol)
{
return false;
}
var video = item as Video;
if (video != null && !video.IsPlaceHolder && video.IsCompleteMedia)
{
return true;
}
return false;
}
public int Order
{
get
{
// Make sure this comes after internet image providers
return 100;
}
}
}
}
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