public ParallelDownloaderTest()
{
// Using Moq "strict" mode to verify call invocation sequence
// https://github.com/moq/moq4/issues/748#issuecomment-464338657
_storageClient = new Mock <StorageClient>(MockBehavior.Strict);
_fileSystem = new MockFileSystem();
_downloader = new ParallelDownloader(_storageClient.Object, _fileSystem);
}
public static async Task <Music> Download(Video video, IProgress <double> progress = null)
{
// 오디오 검색
var client = new YoutubeClient();
var infos = await client.GetVideoMediaStreamInfosAsync(video.Id);
var audio = infos.Audio.Where(x => x.AudioEncoding == AudioEncoding.Aac).OrderByDescending(x => x.Bitrate).First();
// 오디오 다운로드
var currentPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var downloadPath = Path.Combine(currentPath, "Downloads");
if (!Directory.Exists(downloadPath))
{
Directory.CreateDirectory(downloadPath);
}
var filePath = Path.Combine(downloadPath, $"{Guid.NewGuid().ToString()}.m4a");
await client.DownloadMediaStreamAsync(audio, filePath, progress);
// 섬네일 다운로드
var thumbResult = await ParallelDownloader.DownloadAsync(video.Thumbnails.HighResUrl, Path.GetTempFileName(), 2);
if (thumbResult.IsSuccess)
{
// 레터 박스 제거
using (var bitmap = BitmapUtility.DeleteLetterBox(thumbResult.FilePath))
{
bitmap.Save(thumbResult.FilePath);
}
// 비율에 맞춰 자르기
using (var bitmap = BitmapUtility.CenterCrop(thumbResult.FilePath))
{
bitmap.Save(thumbResult.FilePath);
}
// 결과 반환
return(new Music
{
Path = filePath,
Picture = thumbResult.FilePath,
Title = video.Title,
Artist = video.Author,
Album = video.Title
});
}
return(null);
}
public static async Task <Music> Download(Video video, IProgress <double> progress = null)
{
// 오디오 검색
var client = new YoutubeClient();
var infos = await client.GetVideoMediaStreamInfosAsync(video.Id);
var audio = infos.Audio.Where(x => x.AudioEncoding == AudioEncoding.Aac).OrderByDescending(x => x.Bitrate).First();
// 오디오 다운로드
var currentPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var downloadPath = Path.Combine(currentPath, "Downloads");
if (!Directory.Exists(downloadPath))
{
Directory.CreateDirectory(downloadPath);
}
var filePath = Path.Combine(downloadPath, $"{Guid.NewGuid().ToString()}.m4a");
await client.DownloadMediaStreamAsync(audio, filePath, progress);
// 섬네일 다운로드
var thumbResult = await ParallelDownloader.DownloadAsync(video.Thumbnails.HighResUrl, Path.GetTempFileName(), 2);
if (thumbResult.IsSuccess)
{
// 레터 박스 제거
using (var bitmap = BitmapUtility.DeleteLetterBox(thumbResult.FilePath))
{
bitmap.Save(thumbResult.FilePath);
}
// 비율에 맞춰 자르기
using (var bitmap = BitmapUtility.CenterCrop(thumbResult.FilePath))
{
bitmap.Save(thumbResult.FilePath);
}
// 인코딩 필요 검사
string encodePath = null;
if (IsEncodeRequired)
{
await Task.Run(() =>
{
var inputFile = new MediaFile(filePath);
var outputFile = new MediaFile(Path.Combine(downloadPath, $"{Path.GetFileNameWithoutExtension(filePath)}.mp3"));
using (var engine = new Engine())
{
engine.ConvertProgressEvent += (s, e) =>
{
progress.Report(1 + (e.ProcessedDuration.TotalMilliseconds / e.TotalDuration.TotalMilliseconds) * 0.5d);
};
engine.Convert(inputFile, outputFile);
}
// 기존 파일 삭제
File.Delete(inputFile.Filename);
// 경로 업데이트
encodePath = outputFile.Filename;
});
}
// 결과 반환
return(new Music
{
Path = encodePath ?? filePath,
Picture = thumbResult.FilePath,
Title = video.Title,
Artist = video.Author,
Album = video.Title
});
}
return(null);
}
