private void SplitWithFadeout(string inputFile, List <double> splitPoints,
string sFadeLength)
{
const int sampleRate = 44100;
string outFilename = inputFile + "_fadeout.m4a";
if (!double.TryParse(sFadeLength, out double fadeLength) || fadeLength <= 0)
{
throw new CsDownloadVidException("Invalid fadelength, expected a number of " +
"seconds like 4");
}
else if (splitPoints.Count == 0)
{
throw new CsDownloadVidException("Enter a time, in seconds");
}
else if (splitPoints.Count != 1)
{
throw new CsDownloadVidException("It looks like you have entered more than " +
"one time point. Please enter just one time, in seconds.");
}
else if (!inputFile.EndsWith(".m4a"))
{
throw new CsDownloadVidException("We currently only support adding fadeout " +
"for m4a files (if you have a .mp4 song, please rename it to .m4a first).");
}
else if (File.Exists(outFilename))
{
throw new CsDownloadVidException("Output file already exists " + outFilename);
}
// preemptively make sure we have a path to qaac.
CsDownloadVidFilepaths.GetQaac();
// run all in a separate thread, so that UI remains responsive.
_runner.RunInThread(() =>
{
var log = "";
new AddFadeoutUsingRawAacData().Go(inputFile, sampleRate, splitPoints[0],
fadeLength, outFilename, ref log);
_runner.TraceFiltered(log.Replace("\n", Utils.NL));
_runner.Trace(File.Exists(outFilename) ? "Successfully saved to " + outFilename :
"Error(s) occurred");
});
}
private void LoadFormats_StartProc(string urlToGet, ProcessStartInfo info)
{
string log = "";
string stderr = "";
string stdout = "";
bool succeeded = false;
Process p = new Process();
p.StartInfo = info;
p.Start();
p.ErrorDataReceived += (o, eparam) => { stderr += eparam.Data; };
p.BeginErrorReadLine();
p.WaitForExit();
log += "\nRan " + info.FileName + " " + info.Arguments;
stdout = p.StandardOutput.ReadToEnd();
if (p.ExitCode == 0)
{
succeeded = true;
}
else
{
log += "\nStdout:" + stdout;
log += "\nStderr:" + stderr;
}
_runner.TraceFiltered(log.Replace("\n", Utils.NL));
if (succeeded)
{
LoadFormats_ToUI(urlToGet, stdout);
}
else
{
Utils.MessageErr("Could not get formats");
_runner.Trace("Could not get formats");
}
}