private void ExtractArchive(FFMpegDownloadInfo downloadinfo, string archivePath, string targetPath)
{
_logger.Info("Extracting {0} to {1}", archivePath, targetPath);
if (string.Equals(downloadinfo.ArchiveType, "7z", StringComparison.OrdinalIgnoreCase))
{
_zipClient.ExtractAllFrom7z(archivePath, targetPath, true);
}
else if (string.Equals(downloadinfo.ArchiveType, "gz", StringComparison.OrdinalIgnoreCase))
{
_zipClient.ExtractAllFromTar(archivePath, targetPath, true);
}
}
private void ExtractFFMpeg(FFMpegDownloadInfo downloadinfo, string tempFile, string targetFolder)
{
_logger.Info("Extracting ffmpeg from {0}", tempFile);
var tempFolder = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid().ToString());
_fileSystem.CreateDirectory(tempFolder);
try
{
ExtractArchive(downloadinfo, tempFile, tempFolder);
var files = Directory.EnumerateFiles(tempFolder, "*", SearchOption.AllDirectories)
.ToList();
foreach (var file in files.Where(i =>
{
var filename = Path.GetFileName(i);
return
string.Equals(filename, downloadinfo.FFProbeFilename, StringComparison.OrdinalIgnoreCase) ||
string.Equals(filename, downloadinfo.FFMpegFilename, StringComparison.OrdinalIgnoreCase);
}))
{
var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
_fileSystem.CopyFile(file, targetFile, true);
SetFilePermissions(targetFile);
}
}
finally
{
DeleteFile(tempFile);
}
}
private async void DownloadFFMpegInBackground(FFMpegDownloadInfo downloadinfo, string directory)
{
try
{
await DownloadFFMpeg(downloadinfo, directory, new Progress<double>()).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading ffmpeg", ex);
}
}
private async Task DownloadFFMpeg(FFMpegDownloadInfo downloadinfo, string directory, IProgress<double> progress)
{
foreach (var url in downloadinfo.DownloadUrls)
{
progress.Report(0);
try
{
var tempFile = await _httpClient.GetTempFile(new HttpRequestOptions
{
Url = url,
CancellationToken = CancellationToken.None,
Progress = progress
}).ConfigureAwait(false);
ExtractFFMpeg(downloadinfo, tempFile, directory);
return;
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading {0}", ex, url);
}
}
if (downloadinfo.DownloadUrls.Length == 0)
{
throw new ApplicationException("ffmpeg unvailable. Please install it and start the server with two command line arguments: -ffmpeg \"{PATH}\" and -ffprobe \"{PATH}\"");
}
else
{
throw new ApplicationException("Unable to download required components. Please try again later.");
}
}
private async Task DownloadFFMpeg(FFMpegDownloadInfo downloadinfo, string directory, IProgress<double> progress)
{
foreach (var url in downloadinfo.DownloadUrls)
{
progress.Report(0);
try
{
var tempFile = await _httpClient.GetTempFile(new HttpRequestOptions
{
Url = url,
CancellationToken = CancellationToken.None,
Progress = progress
}).ConfigureAwait(false);
ExtractFFMpeg(downloadinfo, tempFile, directory);
return;
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading {0}", ex, url);
}
}
throw new ApplicationException("Unable to download required components. Please try again later.");
}
