private Task <DownloadResponse> CreateDownloadTask(Segment segment, bool ignoreError, uint?segmentId,
CancellationToken cancelToken)
{
return(Task.Run(async() =>
{
var timeout = CalculateDownloadTimeout(segment);
Logger.Info($"Calculated download timeout is {timeout.TotalMilliseconds}");
var requestData = new DownloadRequest
{
DownloadSegment = segment,
IgnoreError = ignoreError,
SegmentId = segmentId,
StreamType = streamType
};
var timeoutCancellationTokenSource = new CancellationTokenSource();
if (timeout != TimeSpan.MaxValue)
{
timeoutCancellationTokenSource.CancelAfter(timeout);
}
using (timeoutCancellationTokenSource)
using (var downloadCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(
cancelToken, timeoutCancellationTokenSource.Token))
{
return await DashDownloader.DownloadDataAsync(requestData, downloadCancellationTokenSource.Token,
throughputHistory);
}
}));
}
public static Task <DownloadResponse> DownloadDataAsync(DownloadRequest downloadRequest,
CancellationToken cancellationToken, IThroughputHistory throughputHistory)
{
var dashDownloader = new DashDownloader(downloadRequest, cancellationToken, throughputHistory);
return(dashDownloader.DownloadInternalAsync());
}
private DashDownloader(DownloadRequest downloadRequest, CancellationToken cancellationToken,
IThroughputHistory throughputHistory)
{
request = downloadRequest;
if (!string.IsNullOrEmpty(request.DownloadSegment.ByteRange))
{
downloadRange = new ByteRange(request.DownloadSegment.ByteRange);
}
this.cancellationToken = cancellationToken;
this.throughputHistory = throughputHistory;
}
public DashDownloaderException(DownloadRequest request, string message, Exception inner) : base(message, inner)
{
DownloadRequest = request;
}
public DashDownloaderException(DownloadRequest request, string message, Exception inner,
HttpStatusCode statusCode) : base(message, inner)
{
DownloadRequest = request;
StatusCode = statusCode;
}
