public void ExtractPart(string videofile, string filecopy, string startAsHhmmss, int lengthInSeconds = 0)
{
RunCommand runCommand = new RunCommand();
string length = SecondsToHhmmss(lengthInSeconds);
// The comand that we build must contain double quotes around the filenames, since these may contain spaces.
string inputFileQuoted = "\"" + videofile + "\"";
string outputFileQuoted = "\"" + filecopy + "\"";
string lengthOption = (lengthInSeconds > 0) ? " -t " + length : "";
{
}
string command = "ffmpeg -ss " + startAsHhmmss + " -i " + inputFileQuoted + lengthOption + " -vcodec copy -acodec copy -y " + outputFileQuoted;
runCommand.ExecuteCmd(command);
}
// Extract the audio from a file
public void Extract(string inputFile, string outputFile)
{
RunCommand runCommand = new RunCommand();
string inputFileQuoted = "\"" + inputFile + "\"";
string outputFileQuoted = "\"" + outputFile + "\"";
string command = "ffmpeg -i " + inputFileQuoted + " -ac 1 -ab 192000 -vn " + outputFileQuoted + " 2>&1";
runCommand.ExecuteCmd(command);
//// Convert to mono (it's now done in one step above)
//string monoFileQuoted = "\"" + monoFile + "\"";
//command = "ffmpeg -i " + outputFileQuoted + " -ac 1 " + monoFileQuoted + " 2>&1";
//runCommand.ExecuteCmd(command);
}
int RecordingLength(string file)
{
// Get the length of the video in seconds. We will run the "ffmpeg -i" command and parse the standard output.
// The line containing "Duration: ...." will contain the duration in HH:MM:SS format.
// We will convert this to a TimeSpan object and then obtain total seconds.
RunCommand runCommand = new RunCommand();
string inputFileQuoted = "\"" + file + "\"";
// Ffmpeg outputs all of its logging data to stderr,
// to leave stdout free for piping the output data to some other program or ffmpeg instance.
string command = "ffmpeg -i " + inputFileQuoted + " 2>&1";
string result = runCommand.ExecuteCmd(command);
int y = result.IndexOf("Duration: ");
int z = result.IndexOf(".", y);
string duration = result.Substring(y + 10, 8);
TimeSpan time = TimeSpan.Parse(duration);
int videoLength = (int)time.TotalSeconds; // length of video in seconds
return(videoLength);
}