移动Safari发出多个视频请求

// If we receive range header only transmit partial file
if (context.Request.Headers[\"Range\"] != null)
{
    var fi = new FileInfo(filePath);
    long fileSize = fi.Length;

    // Read start/end index
    string headerRange = context.Request.Headers[\"Range\"].Replace(\"bytes=\", \"\");
    string[] range = headerRange.Split(\'-\');
    int startIndex = Convert.ToInt32(range[0]);
    int endIndex = Convert.ToInt32(range[1]);

    // Add header Content-Range,Last-Modified
    context.Response.StatusCode = (int)HttpStatusCode.PartialContent;
    context.Response.AddHeader(HttpWorkerRequest.GetKnownResponseHeaderName(HttpWorkerRequest.HeaderContentRange), String.Format(\"bytes {0}-{1}/{2}\", startIndex, endIndex, fileSize));
    context.Response.AddHeader(HttpWorkerRequest.GetKnownResponseHeaderName(HttpWorkerRequest.HeaderLastModified), String.Format(\"{0:r}\", fi.CreationTime));

    long length = (endIndex - startIndex) + 1;
    context.Response.TransmitFile(filePath, startIndex, length);
}
else
    context.Response.TransmitFile(filePath);