public async Task<bool> RefreshChapterImages(ChapterImageRefreshOptions options, CancellationToken cancellationToken)
{
var extractImages = options.ExtractImages;
var video = options.Video;
var chapters = options.Chapters;
var saveChapters = options.SaveChapters;
if (!IsEligibleForChapterImageExtraction(video))
{
extractImages = false;
}
var success = true;
var changesMade = false;
var runtimeTicks = video.RunTimeTicks ?? 0;
var currentImages = GetSavedChapterImages(video);
foreach (var chapter in chapters)
{
if (chapter.StartPositionTicks >= runtimeTicks)
{
_logger.Info("Stopping chapter extraction for {0} because a chapter was found with a position greater than the runtime.", video.Name);
break;
}
var path = GetChapterImagePath(video, chapter.StartPositionTicks);
if (!currentImages.Contains(path, StringComparer.OrdinalIgnoreCase))
{
if (extractImages)
{
if (video.VideoType == VideoType.HdDvd || video.VideoType == VideoType.Iso)
{
continue;
}
// Add some time for the first chapter to make sure we don't end up with a black image
var time = chapter.StartPositionTicks == 0 ? TimeSpan.FromTicks(Math.Min(FirstChapterTicks, video.RunTimeTicks ?? 0)) : TimeSpan.FromTicks(chapter.StartPositionTicks);
InputType type;
var inputPath = MediaEncoderHelpers.GetInputArgument(video.Path, false, video.VideoType, video.IsoType, null, video.PlayableStreamFileNames, out type);
try
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
using (var stream = await _encoder.ExtractVideoImage(inputPath, type, video.Video3DFormat, time, cancellationToken).ConfigureAwait(false))
{
using (var fileStream = _fileSystem.GetFileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fileStream).ConfigureAwait(false);
}
}
chapter.ImagePath = path;
changesMade = true;
}
catch
{
success = false;
break;
}
}
else if (!string.IsNullOrEmpty(chapter.ImagePath))
{
chapter.ImagePath = null;
changesMade = true;
}
}
else if (!string.Equals(path, chapter.ImagePath, StringComparison.OrdinalIgnoreCase))
{
chapter.ImagePath = path;
changesMade = true;
}
}
if (saveChapters && changesMade)
{
await _itemRepo.SaveChapters(video.Id, chapters, cancellationToken).ConfigureAwait(false);
}
DeleteDeadImages(currentImages, chapters);
return success;
}
public async Task<bool> RefreshChapterImages(ChapterImageRefreshOptions options, CancellationToken cancellationToken)
{
var extractImages = options.ExtractImages;
var video = options.Video;
var chapters = options.Chapters;
var saveChapters = options.SaveChapters;
if (!IsEligibleForChapterImageExtraction(video))
{
extractImages = false;
}
var success = true;
var changesMade = false;
var runtimeTicks = video.RunTimeTicks ?? 0;
var currentImages = GetSavedChapterImages(video);
foreach (var chapter in chapters)
{
if (chapter.StartPositionTicks >= runtimeTicks)
{
_logger.Info("Stopping chapter extraction for {0} because a chapter was found with a position greater than the runtime.", video.Name);
break;
}
var path = GetChapterImagePath(video, chapter.StartPositionTicks);
if (!currentImages.Contains(path, StringComparer.OrdinalIgnoreCase))
{
if (extractImages)
{
if (video.VideoType == VideoType.HdDvd || video.VideoType == VideoType.Iso || video.VideoType == VideoType.BluRay)
{
continue;
}
// Add some time for the first chapter to make sure we don't end up with a black image
var time = chapter.StartPositionTicks == 0 ? TimeSpan.FromTicks(Math.Min(FirstChapterTicks, video.RunTimeTicks ?? 0)) : TimeSpan.FromTicks(chapter.StartPositionTicks);
var protocol = MediaProtocol.File;
var inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, video.Path, protocol, null, video.PlayableStreamFileNames);
try
{
_fileSystem.CreateDirectory(Path.GetDirectoryName(path));
var tempFile = await _encoder.ExtractVideoImage(inputPath, protocol, video.Video3DFormat, time, cancellationToken).ConfigureAwait(false);
File.Copy(tempFile, path, true);
try
{
File.Delete(tempFile);
}
catch
{
}
chapter.ImagePath = path;
chapter.ImageDateModified = _fileSystem.GetLastWriteTimeUtc(path);
changesMade = true;
}
catch (Exception ex)
{
_logger.ErrorException("Error extracting chapter images for {0}", ex, string.Join(",", inputPath));
success = false;
break;
}
}
else if (!string.IsNullOrEmpty(chapter.ImagePath))
{
chapter.ImagePath = null;
changesMade = true;
}
}
else if (!string.Equals(path, chapter.ImagePath, StringComparison.OrdinalIgnoreCase))
{
chapter.ImagePath = path;
chapter.ImageDateModified = _fileSystem.GetLastWriteTimeUtc(path);
changesMade = true;
}
}
if (saveChapters && changesMade)
{
await _chapterManager.SaveChapters(video.Id.ToString(), chapters, cancellationToken).ConfigureAwait(false);
}
DeleteDeadImages(currentImages, chapters);
return success;
}