private void Download()
{
if (isDownloading)
{
return;
}
isDownloading = true;
Task.Factory.StartNew(async() =>
{
DownloadWrapper download = null;
while ((download = ListDownloads.FirstOrDefault(x => !x.IsComplete)) != null)
{
if (download.Retry > 3)
{
download.IsComplete = true;
continue;
}
bool complete = false;
complete = download.IsHLS ? await DownloadHLSAsync(download) : await DownloadMultiLinkAsync(download);
download.IsComplete = complete;
if (complete)
{
download.OnComplete?.Invoke();
}
else
{
download.Retry++;
}
}
isDownloading = false;
});
}
public void AddDownload(List <string> links, string dstFolder, string filename = "", bool isHls = false)
{
DownloadWrapper wrapper = new DownloadWrapper()
{
DestinationFolder = dstFolder,
Links = links,
IsHLS = isHls,
Filename = filename
};
ListDownloads.Add(wrapper);
Download();
}
private async Task <bool> DownloadMultiLinkAsync(DownloadWrapper download)
{
int completeDownload = 0;
var dstFolder = Path.Combine(settings.DownloadFolder, download.DestinationFolder);
Directory.CreateDirectory(dstFolder);
Debug.WriteLine($"Folder: {dstFolder}");
for (int i = 0; i < download.Links.Count; i++)
{
download.CurrentLink = i + 1;
var link = download.Links[i];
var filename = (!String.IsNullOrEmpty(download.Filename) ? download.Filename + " - " : "") + GetFilenameFromUrl(link);
var dstPath = Path.Combine(dstFolder, filename);
Debug.WriteLine($"Downloading {i + 1}/{download.Links.Count} - {filename}");
if (File.Exists(dstPath))
{
completeDownload++;
continue;
}
byte[] remoteContent = null;
int retry = 0;
do
{
try
{
remoteContent = await client.GetByteArrayAsync(link);
}
catch (HttpRequestException e)
{
Debug.WriteLine($"[ERROR] {e.Message} - {link}");
remoteContent = null;
retry++;
Thread.Sleep(500);
}
} while (remoteContent == null && retry <= 2);
if (remoteContent == null)
{
continue;
}
using (var fileStream = new FileStream(dstPath, FileMode.Create))
{
fileStream.Write(remoteContent, 0, remoteContent.Length);
}
completeDownload++;
download.CompletePercentage = ((float)(completeDownload * 100)) / download.Links.Count;
}
return(completeDownload > 0);
}
private async Task <bool> DownloadHLSAsync(DownloadWrapper download)
{
var filename = MakeValidFilename(download.Filename);
// var filenameUrl = GetFilenameFromUrl(download.Links.First());
// var fileExt = ".ts";//Path.GetExtension(filenameUrl);
var dstFolder = Path.Combine(settings.DownloadFolder, download.DestinationFolder);
Directory.CreateDirectory(dstFolder);
var dstPath = Path.Combine(dstFolder, $"{filename}.video");
try
{
using (var fileStream = new FileStream(dstPath, FileMode.Create))
{
for (int partIndex = 0; partIndex < download.Links.Count; partIndex++)
{
Debug.WriteLine($"Downloading part {partIndex + 1}/{download.Links.Count} - {filename}");
download.CurrentLink = partIndex + 1;
try
{
var hlsPart = await client.GetByteArrayAsync(download.Links[partIndex]);
if (hls != null)
{
fileStream.Write(hlsPart, 0, hlsPart.Length);
}
download.CompletePercentage = ((float)((partIndex + 1) * 100)) / download.Links.Count;
}
catch (HttpRequestException e)
{
Debug.WriteLine(e.Message);
partIndex--;
}
}
}
ChangeToMp4(dstFolder, filename, "", false);
return(true);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
return(false);
}