/// <summary>
/// Extracts a screenshot from the center of the video.
/// </summary>
private async Task CreateVideoThumbnailAsync(string path)
{
_logger.Information($"Thumbnail extraction started for video file: {path}");
var durationRaw = await ProcessHelper.GetOutputAsync(GetFFPath("ffprobe"), $@"-i ""{path}"" -show_entries format=duration -v quiet -of csv=""p=0""");
var duration = durationRaw.Replace(",", ".").TryParse <double?>();
if (duration == null)
{
_logger.Error($"Failed to get media duration: '{durationRaw}' is not a valid number.");
}
var position = (int)((duration ?? 0) / 2);
var screenPath = Path.ChangeExtension(path, ".jpg");
await ProcessHelper.InvokeAsync(GetFFPath("ffmpeg"), $@"-i ""{path}"" -y -vframes 1 -ss {position} ""{screenPath}""");
_logger.Information("Thumbnail extraction completed.");
using var img = await Image.LoadAsync(screenPath);
await MediaHandlerHelper.CreateThumbnailsAsync(screenPath, img);
File.Delete(screenPath);
}
/// <summary>
/// Extracts a screenshot from the center of the video.
/// </summary>
private async Task CreateVideoThumbnailAsync(string path)
{
var durationRaw = await ProcessHelper.GetOutputAsync(GetFFPath("ffprobe"), $@"-i ""{path}"" -show_entries format=duration -v quiet -of csv=""p=0""");
var duration = durationRaw.Parse <double>();
var middle = (int)(duration / 2);
var screenPath = Path.ChangeExtension(path, ".jpg");
await ProcessHelper.InvokeAsync(GetFFPath("ffmpeg"), $@"-i ""{path}"" -y -vframes 1 -ss {middle} ""{screenPath}""");
using (var img = Image.FromFile(screenPath))
MediaHandlerHelper.CreateThumbnails(screenPath, img);
File.Delete(screenPath);
}
