public async Task <byte[]> makeBrstm(BrstmOptions options, string url)
{
byte[] data;
YoutubeService yt = new YoutubeService();
YoutubeMetadata ytmd = await yt.GetMetadata(url);
MemoryStream ms = new MemoryStream(await yt.DownloadAudio(HttpUtility.UrlDecode(url)));
data = TrimWavFile(ms, TimeSpan.FromSeconds(options.start), TimeSpan.FromSeconds(options.end));
data = raiseVolume(data, options.decibelIncrease);
if (options.finalLap)
{
data = adjustSpeed(data, options.speedFactor);
}
data = adjustChannels(data, options.courseInfo.channelCount);
return(convertToBrstm(data));
}
public async Task <IActionResult> makeBrstm(string url, string courseAbbreviation, int start, int end, double speedFactor, int decibelIncrease, bool finalLap)
{
byte[] data;
CourseInfo courseInfo = new CourseInfo(courseAbbreviation);
BrstmOptions options = new BrstmOptions
{
courseInfo = courseInfo,
start = start,
end = end,
speedFactor = speedFactor,
decibelIncrease = decibelIncrease,
finalLap = finalLap
};
data = await _brstmService.makeBrstm(options, url);
string filename = courseInfo.fileName + '_';
string norf = options.finalLap ? "f" : "n";
filename += courseInfo.allCaps ? norf.ToUpper() : norf;
filename += ".brstm";
return(File(data, "application/octet-stream", filename));
}